5.10.27-rc1 review

Signed-off-by Hugh Dickins <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 include/linux/memcontrol.h |    6 ++----
 mm/huge_memory.c           |    2 +-
 mm/memcontrol.c            |   15 +++++----------
 3 files changed, 8 insertions(+), 15 deletions(-)

include/linux/memcontrol.h +2 -4

@@ -937,9 +937,7 @@ static inline void memcg_memory_event_mm
 	rcu_read_unlock();
 }
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-void mem_cgroup_split_huge_fixup(struct page *head);
-#endif
+void split_page_memcg(struct page *head, unsigned int nr);
 
 #else /* CONFIG_MEMCG */

@@ -1267,7 +1265,7 @@ unsigned long mem_cgroup_soft_limit_recl
 	return 0;
 }
 
-static inline void mem_cgroup_split_huge_fixup(struct page *head)
+static inline void split_page_memcg(struct page *head, unsigned int nr)
 {
 }

mm/huge_memory.c +1 -1

@@ -2433,7 +2433,7 @@ static void __split_huge_page(struct pag
 	lruvec = mem_cgroup_page_lruvec(head, pgdat);
 
 	/* complete memcg works before add pages to LRU */
-	mem_cgroup_split_huge_fixup(head);
+	split_page_memcg(head, nr);
 
 	if (PageAnon(head) && PageSwapCache(head)) {
 		swp_entry_t entry = { .val = page_private(head) };

mm/memcontrol.c +5 ~~-10~~

@@ -3268,26 +3268,21 @@ void obj_cgroup_uncharge(struct obj_cgro
 
 #endif /* CONFIG_MEMCG_KMEM */
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-
 /*
- * Because tail pages are not marked as "used", set it. We're under
- * pgdat->lru_lock and migration entries setup in all page mappings.
+ * Because head->mem_cgroup is not set on tails, set it now.
  */
-void mem_cgroup_split_huge_fixup(struct page *head)
+void split_page_memcg(struct page *head, unsigned int nr)
 {
 	struct mem_cgroup *memcg = head->mem_cgroup;
 	int i;
 
-	if (mem_cgroup_disabled())
+	if (mem_cgroup_disabled() || !memcg)
 		return;
 
-	for (i = 1; i < HPAGE_PMD_NR; i++) {
-		css_get(&memcg->css);
+	for (i = 1; i < nr; i++)
 		head[i].mem_cgroup = memcg;
-	}
+	css_get_many(&memcg->css, nr - 1);
 }
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 #ifdef CONFIG_MEMCG_SWAP
 /**

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #2 lore raw

PATCH 2/221 mm/memcg: set memcg when splitting page

From: Zhou Guanghui <[email protected]>

commit e1baddf8475b06cc56f4bafecf9a32a124343d9f upstream.

As described in the split_page() comment, for the non-compound high order page, the sub-pages must be freed individually. If the memcg of the first page is valid, the tail pages cannot be uncharged when be freed.

For example, when alloc_pages_exact is used to allocate 1MB continuous physical memory, 2MB is charged(kmemcg is enabled and __GFP_ACCOUNT is set). When make_alloc_exact free the unused 1MB and free_pages_exact free the applied 1MB, actually, only 4KB(one page) is uncharged.

Therefore, the memcg of the tail page needs to be set when splitting a page.

Michel:

There are at least two explicit users of __GFP_ACCOUNT with alloc_exact_pages added recently. See 7efe8ef274024 ("KVM: arm64:
Allocate stage-2 pgd pages with GFP_KERNEL_ACCOUNT") and c419621873713 ("KVM: s390: Add memcg accounting to KVM allocations"), so this is not just a theoretical issue.

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Zhou Guanghui <[email protected]>

Acked-by Johannes Weiner <[email protected]>

Reviewed-by Zi Yan <[email protected]>

Reviewed-by Shakeel Butt <[email protected]>

Acked-by Michal Hocko <[email protected]>

Cc Hanjun Guo <[email protected]>

Cc Hugh Dickins <[email protected]>

Cc Kefeng Wang <[email protected]>

Cc "Kirill A. Shutemov" <[email protected]>

Cc Nicholas Piggin <[email protected]>

Cc Rui Xiang <[email protected]>

Cc Tianhong Ding <[email protected]>

Cc Weilong Chen <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 mm/page_alloc.c |    1 +
 1 file changed, 1 insertion(+)

mm/page_alloc.c +1 -0

@@ -3272,6 +3272,7 @@ void split_page(struct page *page, unsig
 	for (i = 1; i < (1 << order); i++)
 		set_page_refcounted(page + i);
 	split_page_owner(page, 1 << order);
+	split_page_memcg(page, 1 << order);
 }
 EXPORT_SYMBOL_GPL(split_page);

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #3 lore raw

PATCH 3/221 mt76: fix tx skb error handling in mt76_dma_tx_queue_skb

From: Felix Fietkau <[email protected]>

[ Upstream commit ae064fc0e32a4d28389086d9f4b260a0c157cfee ]

When running out of room in the tx queue after calling drv->tx_prepare_skb, the buffer list will already have been modified on MT7615 and newer drivers. This can leak a DMA mapping and will show up as swiotlb allocation failures on x86.

Fix this by moving the queue length check further up. This is less accurate, since it can overestimate the needed room in the queue on MT7615 and newer, but the difference is small enough to not matter in practice.

Signed-off-by Felix Fietkau <[email protected]>

Signed-off-by Kalle Valo <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/wireless/mediatek/mt76/dma.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

drivers/net/wireless/mediatek/mt76/dma.c +6 -9

index 262c40dc14a6..665a03ebf9ef 100644
@@ -355,7 +355,6 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 	};
 	struct ieee80211_hw *hw;
 	int len, n = 0, ret = -ENOMEM;
-	struct mt76_queue_entry e;
 	struct mt76_txwi_cache *t;
 	struct sk_buff *iter;
 	dma_addr_t addr;

@@ -397,6 +396,11 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 	}
 	tx_info.nbuf = n;
 
+	if (q->queued + (tx_info.nbuf + 1) / 2 >= q->ndesc - 1) {
+		ret = -ENOMEM;
+		goto unmap;
+	}
+
 	dma_sync_single_for_cpu(dev->dev, t->dma_addr, dev->drv->txwi_size,
 				DMA_TO_DEVICE);
 	ret = dev->drv->tx_prepare_skb(dev, txwi, qid, wcid, sta, &tx_info);

@@ -405,11 +409,6 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 	if (ret < 0)
 		goto unmap;
 
-	if (q->queued + (tx_info.nbuf + 1) / 2 >= q->ndesc - 1) {
-		ret = -ENOMEM;
-		goto unmap;
-	}
-
 	return mt76_dma_add_buf(dev, q, tx_info.buf, tx_info.nbuf,
 				tx_info.info, tx_info.skb, t);

@@ -425,9 +424,7 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 		dev->test.tx_done--;
 #endif
 
-	e.skb = tx_info.skb;
-	e.txwi = t;
-	dev->drv->tx_complete_skb(dev, &e);
+	dev_kfree_skb(tx_info.skb);
 	mt76_put_txwi(dev, t);
 	return ret;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #4 lore raw

PATCH 4/221 net: stmmac: fix dma physical address of descriptor when display ring

From: Joakim Zhang <[email protected]>

[ Upstream commit bfaf91ca848e758ed7be99b61fd936d03819fa56 ]

Driver uses dma_alloc_coherent to allocate dma memory for descriptors, dma_alloc_coherent will return both the virtual address and physical address. AFAIK, virt_to_phys could not convert virtual address to physical address, for which memory is allocated by dma_alloc_coherent.

dwmac4_display_ring() function is broken for various descriptor, it only support normal descriptor(struct dma_desc) now, this patch also extends to support all descriptor types.

Signed-off-by Joakim Zhang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../ethernet/stmicro/stmmac/dwmac4_descs.c    | 50 +++++++++++++---
 .../net/ethernet/stmicro/stmmac/enh_desc.c    |  9 ++-
 drivers/net/ethernet/stmicro/stmmac/hwif.h    |  3 +-
 .../net/ethernet/stmicro/stmmac/norm_desc.c   |  9 ++-
 .../net/ethernet/stmicro/stmmac/stmmac_main.c | 57 ++++++++++++-------
 5 files changed, 94 insertions(+), 34 deletions(-)

drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +42 -8

index 2ecd3a8a690c..cbf4429fb1d2 100644
@@ -402,19 +402,53 @@ static void dwmac4_rd_set_tx_ic(struct dma_desc *p)
 	p->des2 |= cpu_to_le32(TDES2_INTERRUPT_ON_COMPLETION);
 }
 
-static void dwmac4_display_ring(void *head, unsigned int size, bool rx)
+static void dwmac4_display_ring(void *head, unsigned int size, bool rx,
+				dma_addr_t dma_rx_phy, unsigned int desc_size)
 {
-	struct dma_desc *p = (struct dma_desc *)head;
+	dma_addr_t dma_addr;
 	int i;
 
 	pr_info("%s descriptor ring:\n", rx ? "RX" : "TX");
 
-	for (i = 0; i < size; i++) {
-		pr_info("%03d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
-			i, (unsigned int)virt_to_phys(p),
-			le32_to_cpu(p->des0), le32_to_cpu(p->des1),
-			le32_to_cpu(p->des2), le32_to_cpu(p->des3));
-		p++;
+	if (desc_size == sizeof(struct dma_desc)) {
+		struct dma_desc *p = (struct dma_desc *)head;
+
+		for (i = 0; i < size; i++) {
+			dma_addr = dma_rx_phy + i * sizeof(*p);
+			pr_info("%03d [%pad]: 0x%x 0x%x 0x%x 0x%x\n",
+				i, &dma_addr,
+				le32_to_cpu(p->des0), le32_to_cpu(p->des1),
+				le32_to_cpu(p->des2), le32_to_cpu(p->des3));
+			p++;
+		}
+	} else if (desc_size == sizeof(struct dma_extended_desc)) {
+		struct dma_extended_desc *extp = (struct dma_extended_desc *)head;
+
+		for (i = 0; i < size; i++) {
+			dma_addr = dma_rx_phy + i * sizeof(*extp);
+			pr_info("%03d [%pad]: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+				i, &dma_addr,
+				le32_to_cpu(extp->basic.des0), le32_to_cpu(extp->basic.des1),
+				le32_to_cpu(extp->basic.des2), le32_to_cpu(extp->basic.des3),
+				le32_to_cpu(extp->des4), le32_to_cpu(extp->des5),
+				le32_to_cpu(extp->des6), le32_to_cpu(extp->des7));
+			extp++;
+		}
+	} else if (desc_size == sizeof(struct dma_edesc)) {
+		struct dma_edesc *ep = (struct dma_edesc *)head;
+
+		for (i = 0; i < size; i++) {
+			dma_addr = dma_rx_phy + i * sizeof(*ep);
+			pr_info("%03d [%pad]: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+				i, &dma_addr,
+				le32_to_cpu(ep->des4), le32_to_cpu(ep->des5),
+				le32_to_cpu(ep->des6), le32_to_cpu(ep->des7),
+				le32_to_cpu(ep->basic.des0), le32_to_cpu(ep->basic.des1),
+				le32_to_cpu(ep->basic.des2), le32_to_cpu(ep->basic.des3));
+			ep++;
+		}
+	} else {
+		pr_err("unsupported descriptor!");
 	}
 }

drivers/net/ethernet/stmicro/stmmac/enh_desc.c +6 -3

index d02cec296f51..6650edfab5bc 100644
@@ -417,19 +417,22 @@ static int enh_desc_get_rx_timestamp_status(void *desc, void *next_desc,
 	}
 }
 
-static void enh_desc_display_ring(void *head, unsigned int size, bool rx)
+static void enh_desc_display_ring(void *head, unsigned int size, bool rx,
+				  dma_addr_t dma_rx_phy, unsigned int desc_size)
 {
 	struct dma_extended_desc *ep = (struct dma_extended_desc *)head;
+	dma_addr_t dma_addr;
 	int i;
 
 	pr_info("Extended %s descriptor ring:\n", rx ? "RX" : "TX");
 
 	for (i = 0; i < size; i++) {
 		u64 x;
+		dma_addr = dma_rx_phy + i * sizeof(*ep);
 
 		x = *(u64 *)ep;
-		pr_info("%03d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
-			i, (unsigned int)virt_to_phys(ep),
+		pr_info("%03d [%pad]: 0x%x 0x%x 0x%x 0x%x\n",
+			i, &dma_addr,
 			(unsigned int)x, (unsigned int)(x >> 32),
 			ep->basic.des2, ep->basic.des3);
 		ep++;

drivers/net/ethernet/stmicro/stmmac/hwif.h +2 -1

index afe7ec496545..b0b84244ef10 100644
@@ -78,7 +78,8 @@ struct stmmac_desc_ops {
 	/* get rx timestamp status */
 	int (*get_rx_timestamp_status)(void *desc, void *next_desc, u32 ats);
 	/* Display ring */
-	void (*display_ring)(void *head, unsigned int size, bool rx);
+	void (*display_ring)(void *head, unsigned int size, bool rx,
+			     dma_addr_t dma_rx_phy, unsigned int desc_size);
 	/* set MSS via context descriptor */
 	void (*set_mss)(struct dma_desc *p, unsigned int mss);
 	/* get descriptor skbuff address */

drivers/net/ethernet/stmicro/stmmac/norm_desc.c +6 -3

index f083360e4ba6..98ef43f35802 100644
@@ -269,19 +269,22 @@ static int ndesc_get_rx_timestamp_status(void *desc, void *next_desc, u32 ats)
 		return 1;
 }
 
-static void ndesc_display_ring(void *head, unsigned int size, bool rx)
+static void ndesc_display_ring(void *head, unsigned int size, bool rx,
+			       dma_addr_t dma_rx_phy, unsigned int desc_size)
 {
 	struct dma_desc *p = (struct dma_desc *)head;
+	dma_addr_t dma_addr;
 	int i;
 
 	pr_info("%s descriptor ring:\n", rx ? "RX" : "TX");
 
 	for (i = 0; i < size; i++) {
 		u64 x;
+		dma_addr = dma_rx_phy + i * sizeof(*p);
 
 		x = *(u64 *)p;
-		pr_info("%03d [0x%x]: 0x%x 0x%x 0x%x 0x%x",
-			i, (unsigned int)virt_to_phys(p),
+		pr_info("%03d [%pad]: 0x%x 0x%x 0x%x 0x%x",
+			i, &dma_addr,
 			(unsigned int)x, (unsigned int)(x >> 32),
 			p->des2, p->des3);
 		p++;

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +38 ~~-19~~

141 lines not on this page · raw message

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #5 lore raw

PATCH 5/221 net: fec: ptp: avoid register access when ipg clock is disabled

From: Heiko Thiery <[email protected]>

[ Upstream commit 6a4d7234ae9a3bb31181f348ade9bbdb55aeb5c5 ]

When accessing the timecounter register on an i.MX8MQ the kernel hangs. This is only the case when the interface is down. This can be reproduced by reading with 'phc_ctrl eth0 get'.

Like described in the change in 91c0d987a9788dcc5fe26baafd73bf9242b68900 the igp clock is disabled when the interface is down and leads to a system hang.

So we check if the ptp clock status before reading the timecounter register.

Signed-off-by Heiko Thiery <[email protected]>

Acked-by Richard Cochran <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/freescale/fec_ptp.c | 7 +++++++
 1 file changed, 7 insertions(+)

drivers/net/ethernet/freescale/fec_ptp.c +7 -0

index 2e344aada4c6..1753807cbf97 100644
@@ -377,9 +377,16 @@ static int fec_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
 	u64 ns;
 	unsigned long flags;
 
+	mutex_lock(&adapter->ptp_clk_mutex);
+	/* Check the ptp clock */
+	if (!adapter->ptp_clk_on) {
+		mutex_unlock(&adapter->ptp_clk_mutex);
+		return -EINVAL;
+	}
 	spin_lock_irqsave(&adapter->tmreg_lock, flags);
 	ns = timecounter_read(&adapter->tc);
 	spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
+	mutex_unlock(&adapter->ptp_clk_mutex);
 
 	*ts = ns_to_timespec64(ns);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #6 lore raw

PATCH 6/221 powerpc/4xx: Fix build errors from mfdcr()

From: Michael Ellerman <[email protected]>

[ Upstream commit eead089311f4d935ab5d1d8fbb0c42ad44699ada ]

lkp reported a build error in fsp2.o:

CC arch/powerpc/platforms/44x/fsp2.o
{standard input}:577: Error: unsupported relocation against base

Which comes from:

  pr_err("GESR0: 0x%08x\n", mfdcr(base + PLB4OPB_GESR0));

Where our mfdcr() macro is stringifying "base + PLB4OPB_GESR0", and passing that to the assembler, which obviously doesn't work.

The mfdcr() macro already checks that the argument is constant using __builtin_constant_p(), and if not calls the out-of-line version of mfdcr(). But in this case GCC is smart enough to notice that "base + PLB4OPB_GESR0" will be constant, even though it's not something we can immediately stringify into a register number.

Segher pointed out that passing the register number to the inline asm as a constant would be better, and in fact it fixes the build error, presumably because it gives GCC a chance to resolve the value.

While we're at it, change mtdcr() similarly.

Reported-by kernel test robot <[email protected]>

Signed-off-by Michael Ellerman <[email protected]>

Acked-by Feng Tang <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 arch/powerpc/include/asm/dcr-native.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

arch/powerpc/include/asm/dcr-native.h +4 -4

index 7141ccea8c94..a92059964579 100644
@@ -53,8 +53,8 @@ static inline void mtdcrx(unsigned int reg, unsigned int val)
 #define mfdcr(rn)						\
 	({unsigned int rval;					\
 	if (__builtin_constant_p(rn) && rn < 1024)		\
-		asm volatile("mfdcr %0," __stringify(rn)	\
-		              : "=r" (rval));			\
+		asm volatile("mfdcr %0, %1" : "=r" (rval)	\
+			      : "n" (rn));			\
 	else if (likely(cpu_has_feature(CPU_FTR_INDEXED_DCR)))	\
 		rval = mfdcrx(rn);				\
 	else							\

@@ -64,8 +64,8 @@ static inline void mtdcrx(unsigned int reg, unsigned int val)
 #define mtdcr(rn, v)						\
 do {								\
 	if (__builtin_constant_p(rn) && rn < 1024)		\
-		asm volatile("mtdcr " __stringify(rn) ",%0"	\
-			      : : "r" (v)); 			\
+		asm volatile("mtdcr %0, %1"			\
+			      : : "n" (rn), "r" (v));		\
 	else if (likely(cpu_has_feature(CPU_FTR_INDEXED_DCR)))	\
 		mtdcrx(rn, v);					\
 	else							\

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #7 lore raw

PATCH 7/221 atm: eni: dont release is never initialized

From: Tong Zhang <[email protected]>

[ Upstream commit 4deb550bc3b698a1f03d0332cde3df154d1b6c1e ]

label err_eni_release is reachable when eni_start() fail.
In eni_start() it calls dev->phy->start() in the last step, if start() fail we don't need to call phy->stop(), if start() is never called, we neither need to call phy->stop(), otherwise null-ptr-deref will happen.

In order to fix this issue, don't call phy->stop() in label err_eni_release

[    4.875714] ==================================================================
[    4.876091] BUG: KASAN: null-ptr-deref in suni_stop+0x47/0x100 [suni]
[    4.876433] Read of size 8 at addr 0000000000000030 by task modprobe/95
[    4.876778]
[    4.876862] CPU: 0 PID: 95 Comm: modprobe Not tainted 5.11.0-rc7-00090-gdcc0b49040c7 #2
[    4.877290] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd94
[    4.877876] Call Trace:
[    4.878009]  dump_stack+0x7d/0xa3
[    4.878191]  kasan_report.cold+0x10c/0x10e
[    4.878410]  ? __slab_free+0x2f0/0x340
[    4.878612]  ? suni_stop+0x47/0x100 [suni]
[    4.878832]  suni_stop+0x47/0x100 [suni]
[    4.879043]  eni_do_release+0x3b/0x70 [eni]
[    4.879269]  eni_init_one.cold+0x1152/0x1747 [eni]
[    4.879528]  ? _raw_spin_lock_irqsave+0x7b/0xd0
[    4.879768]  ? eni_ioctl+0x270/0x270 [eni]
[    4.879990]  ? __mutex_lock_slowpath+0x10/0x10
[    4.880226]  ? eni_ioctl+0x270/0x270 [eni]
[    4.880448]  local_pci_probe+0x6f/0xb0
[    4.880650]  pci_device_probe+0x171/0x240
[    4.880864]  ? pci_device_remove+0xe0/0xe0
[    4.881086]  ? kernfs_create_link+0xb6/0x110
[    4.881315]  ? sysfs_do_create_link_sd.isra.0+0x76/0xe0
[    4.881594]  really_probe+0x161/0x420
[    4.881791]  driver_probe_device+0x6d/0xd0
[    4.882010]  device_driver_attach+0x82/0x90
[    4.882233]  ? device_driver_attach+0x90/0x90
[    4.882465]  __driver_attach+0x60/0x100
[    4.882671]  ? device_driver_attach+0x90/0x90
[    4.882903]  bus_for_each_dev+0xe1/0x140
[    4.883114]  ? subsys_dev_iter_exit+0x10/0x10
[    4.883346]  ? klist_node_init+0x61/0x80
[    4.883557]  bus_add_driver+0x254/0x2a0
[    4.883764]  driver_register+0xd3/0x150
[    4.883971]  ? 0xffffffffc0038000
[    4.884149]  do_one_initcall+0x84/0x250
[    4.884355]  ? trace_event_raw_event_initcall_finish+0x150/0x150
[    4.884674]  ? unpoison_range+0xf/0x30
[    4.884875]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    4.885150]  ? unpoison_range+0xf/0x30
[    4.885352]  ? unpoison_range+0xf/0x30
[    4.885557]  do_init_module+0xf8/0x350
[    4.885760]  load_module+0x3fe6/0x4340
[    4.885960]  ? vm_unmap_ram+0x1d0/0x1d0
[    4.886166]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    4.886441]  ? module_frob_arch_sections+0x20/0x20
[    4.886697]  ? __do_sys_finit_module+0x108/0x170
[    4.886941]  __do_sys_finit_module+0x108/0x170
[    4.887178]  ? __ia32_sys_init_module+0x40/0x40
[    4.887419]  ? file_open_root+0x200/0x200
[    4.887634]  ? do_sys_open+0x85/0xe0
[    4.887826]  ? filp_open+0x50/0x50
[    4.888009]  ? fpregs_assert_state_consistent+0x4d/0x60
[    4.888287]  ? exit_to_user_mode_prepare+0x2f/0x130
[    4.888547]  do_syscall_64+0x33/0x40
[    4.888739]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    4.889010] RIP: 0033:0x7ff62fcf1cf7
[    4.889202] Code: 48 89 57 30 48 8b 04 24 48 89 47 38 e9 1d a0 02 00 48 89 f8 48 89 f71
[    4.890172] RSP: 002b:00007ffe6644ade8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    4.890570] RAX: ffffffffffffffda RBX: 0000000000f2ca70 RCX: 00007ff62fcf1cf7
[    4.890944] RDX: 0000000000000000 RSI: 0000000000f2b9e0 RDI: 0000000000000003
[    4.891318] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
[    4.891691] R10: 00007ff62fd55300 R11: 0000000000000246 R12: 0000000000f2b9e0
[    4.892064] R13: 0000000000000000 R14: 0000000000f2bdd0 R15: 0000000000000001
[    4.892439] ==================================================================

Signed-off-by Tong Zhang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/atm/eni.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

drivers/atm/eni.c +2 -1

index 316a9947541f..b574cce98dc3 100644
@@ -2260,7 +2260,8 @@ static int eni_init_one(struct pci_dev *pci_dev,
 	return rc;
 
 err_eni_release:
-	eni_do_release(dev);
+	dev->phy = NULL;
+	iounmap(ENI_DEV(dev)->ioaddr);
 err_unregister:
 	atm_dev_deregister(dev);
 err_free_consistent:

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #8 lore raw

PATCH 8/221 atm: lanai: dont run lanai_dev_close if not open

From: Tong Zhang <[email protected]>

[ Upstream commit a2bd45834e83d6c5a04d397bde13d744a4812dfc ]

lanai_dev_open() can fail. When it fail, lanai->base is unmapped and the pci device is disabled. The caller, lanai_init_one(), then tries to run atm_dev_deregister(). This will subsequently call lanai_dev_close() and use the already released MMIO area.

To fix this issue, set the lanai->base to NULL if open fail, and test the flag in lanai_dev_close().

[    8.324153] lanai: lanai_start() failed, err=19
[    8.324819] lanai(itf 0): shutting down interface
[    8.325211] BUG: unable to handle page fault for address: ffffc90000180024
[    8.325781] #PF: supervisor write access in kernel mode
[    8.326215] #PF: error_code(0x0002) - not-present page
[    8.326641] PGD 100000067 P4D 100000067 PUD 100139067 PMD 10013a067 PTE 0
[    8.327206] Oops: 0002 [#1] SMP KASAN NOPTI
[    8.327557] CPU: 0 PID: 95 Comm: modprobe Not tainted 5.11.0-rc7-00090-gdcc0b49040c7 #12
[    8.328229] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd9c812dda519-4
[    8.329145] RIP: 0010:lanai_dev_close+0x4f/0xe5 [lanai]
[    8.329587] Code: 00 48 c7 c7 00 d3 01 c0 e8 49 4e 0a c2 48 8d bd 08 02 00 00 e8 6e 52 14 c1 48 80
[    8.330917] RSP: 0018:ffff8881029ef680 EFLAGS: 00010246
[    8.331196] RAX: 000000000003fffe RBX: ffff888102fb4800 RCX: ffffffffc001a98a
[    8.331572] RDX: ffffc90000180000 RSI: 0000000000000246 RDI: ffff888102fb4000
[    8.331948] RBP: ffff888102fb4000 R08: ffffffff8115da8a R09: ffffed102053deaa
[    8.332326] R10: 0000000000000003 R11: ffffed102053dea9 R12: ffff888102fb48a4
[    8.332701] R13: ffffffffc00123c0 R14: ffff888102fb4b90 R15: ffff888102fb4b88
[    8.333077] FS:  00007f08eb9056a0(0000) GS:ffff88815b400000(0000) knlGS:0000000000000000
[    8.333502] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.333806] CR2: ffffc90000180024 CR3: 0000000102a28000 CR4: 00000000000006f0
[    8.334182] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    8.334557] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    8.334932] Call Trace:
[    8.335066]  atm_dev_deregister+0x161/0x1a0 [atm]
[    8.335324]  lanai_init_one.cold+0x20c/0x96d [lanai]
[    8.335594]  ? lanai_send+0x2a0/0x2a0 [lanai]
[    8.335831]  local_pci_probe+0x6f/0xb0
[    8.336039]  pci_device_probe+0x171/0x240
[    8.336255]  ? pci_device_remove+0xe0/0xe0
[    8.336475]  ? kernfs_create_link+0xb6/0x110
[    8.336704]  ? sysfs_do_create_link_sd.isra.0+0x76/0xe0
[    8.336983]  really_probe+0x161/0x420
[    8.337181]  driver_probe_device+0x6d/0xd0
[    8.337401]  device_driver_attach+0x82/0x90
[    8.337626]  ? device_driver_attach+0x90/0x90
[    8.337859]  __driver_attach+0x60/0x100
[    8.338065]  ? device_driver_attach+0x90/0x90
[    8.338298]  bus_for_each_dev+0xe1/0x140
[    8.338511]  ? subsys_dev_iter_exit+0x10/0x10
[    8.338745]  ? klist_node_init+0x61/0x80
[    8.338956]  bus_add_driver+0x254/0x2a0
[    8.339164]  driver_register+0xd3/0x150
[    8.339370]  ? 0xffffffffc0028000
[    8.339550]  do_one_initcall+0x84/0x250
[    8.339755]  ? trace_event_raw_event_initcall_finish+0x150/0x150
[    8.340076]  ? free_vmap_area_noflush+0x1a5/0x5c0
[    8.340329]  ? unpoison_range+0xf/0x30
[    8.340532]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    8.340806]  ? unpoison_range+0xf/0x30
[    8.341014]  ? unpoison_range+0xf/0x30
[    8.341217]  do_init_module+0xf8/0x350
[    8.341419]  load_module+0x3fe6/0x4340
[    8.341621]  ? vm_unmap_ram+0x1d0/0x1d0
[    8.341826]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    8.342101]  ? module_frob_arch_sections+0x20/0x20
[    8.342358]  ? __do_sys_finit_module+0x108/0x170
[    8.342604]  __do_sys_finit_module+0x108/0x170
[    8.342841]  ? __ia32_sys_init_module+0x40/0x40
[    8.343083]  ? file_open_root+0x200/0x200
[    8.343298]  ? do_sys_open+0x85/0xe0
[    8.343491]  ? filp_open+0x50/0x50
[    8.343675]  ? exit_to_user_mode_prepare+0xfc/0x130
[    8.343935]  do_syscall_64+0x33/0x40
[    8.344132]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    8.344401] RIP: 0033:0x7f08eb887cf7
[    8.344594] Code: 48 89 57 30 48 8b 04 24 48 89 47 38 e9 1d a0 02 00 48 89 f8 48 89 f7 48 89 d6 41
[    8.345565] RSP: 002b:00007ffcd5c98ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.345962] RAX: ffffffffffffffda RBX: 00000000008fea70 RCX: 00007f08eb887cf7
[    8.346336] RDX: 0000000000000000 RSI: 00000000008fd9e0 RDI: 0000000000000003
[    8.346711] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
[    8.347085] R10: 00007f08eb8eb300 R11: 0000000000000246 R12: 00000000008fd9e0
[    8.347460] R13: 0000000000000000 R14: 00000000008fddd0 R15: 0000000000000001
[    8.347836] Modules linked in: lanai(+) atm
[    8.348065] CR2: ffffc90000180024
[    8.348244] ---[ end trace 7fdc1c668f2003e5 ]---
[    8.348490] RIP: 0010:lanai_dev_close+0x4f/0xe5 [lanai]
[    8.348772] Code: 00 48 c7 c7 00 d3 01 c0 e8 49 4e 0a c2 48 8d bd 08 02 00 00 e8 6e 52 14 c1 48 80
[    8.349745] RSP: 0018:ffff8881029ef680 EFLAGS: 00010246
[    8.350022] RAX: 000000000003fffe RBX: ffff888102fb4800 RCX: ffffffffc001a98a
[    8.350397] RDX: ffffc90000180000 RSI: 0000000000000246 RDI: ffff888102fb4000
[    8.350772] RBP: ffff888102fb4000 R08: ffffffff8115da8a R09: ffffed102053deaa
[    8.351151] R10: 0000000000000003 R11: ffffed102053dea9 R12: ffff888102fb48a4
[    8.351525] R13: ffffffffc00123c0 R14: ffff888102fb4b90 R15: ffff888102fb4b88
[    8.351918] FS:  00007f08eb9056a0(0000) GS:ffff88815b400000(0000) knlGS:0000000000000000
[    8.352343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.352647] CR2: ffffc90000180024 CR3: 0000000102a28000 CR4: 00000000000006f0
[    8.353022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    8.353397] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    8.353958] modprobe (95) used greatest stack depth: 26216 bytes left

Signed-off-by Tong Zhang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/atm/lanai.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

drivers/atm/lanai.c +4 -1

index ac811cfa6843..92edd100a394 100644
@@ -2234,6 +2234,7 @@ static int lanai_dev_open(struct atm_dev *atmdev)
 	conf1_write(lanai);
 #endif
 	iounmap(lanai->base);
+	lanai->base = NULL;
     error_pci:
 	pci_disable_device(lanai->pci);
     error:

@@ -2246,6 +2247,8 @@ static int lanai_dev_open(struct atm_dev *atmdev)
 static void lanai_dev_close(struct atm_dev *atmdev)
 {
 	struct lanai_dev *lanai = (struct lanai_dev *) atmdev->dev_data;
+	if (lanai->base==NULL)
+		return;
 	printk(KERN_INFO DEV_LABEL "(itf %d): shutting down interface\n",
 	    lanai->number);
 	lanai_timed_poll_stop(lanai);

@@ -2553,7 +2556,7 @@ static int lanai_init_one(struct pci_dev *pci,
 	struct atm_dev *atmdev;
 	int result;
 
-	lanai = kmalloc(sizeof(*lanai), GFP_KERNEL);
+	lanai = kzalloc(sizeof(*lanai), GFP_KERNEL);
 	if (lanai == NULL) {
 		printk(KERN_ERR DEV_LABEL
 		       ": couldn't allocate dev_data structure!\n");

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #9 lore raw

PATCH 9/221 Revert "r8152: adjust the settings about MAC clock speed down for RTL8153"

From: Hayes Wang <[email protected]>

[ Upstream commit 4b5dc1a94d4f92b5845e98bd9ae344b26d933aad ]

This reverts commit 134f98bcf1b898fb9d6f2b91bc85dd2e5478b4b8.

The r8153_mac_clk_spd() is used for RTL8153A only, because the register table of RTL8153B is different from RTL8153A. However, this function would be called when RTL8153B calls r8153_first_init() and r8153_enter_oob(). That causes RTL8153B becomes unstable when suspending and resuming. The worst case may let the device stop working.

Besides, revert this commit to disable MAC clock speed down for RTL8153A. It would avoid the known issue when enabling U1. The data of the first control transfer may be wrong when exiting U1.

Signed-off-by Hayes Wang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/usb/r8152.c | 35 ++++++-----------------------------
 1 file changed, 6 insertions(+), 29 deletions(-)

drivers/net/usb/r8152.c +6 ~~-29~~

index 88f177aca342..d2862071b697 100644
@@ -3033,29 +3033,6 @@ static void __rtl_set_wol(struct r8152 *tp, u32 wolopts)
 		device_set_wakeup_enable(&tp->udev->dev, false);
 }
 
-static void r8153_mac_clk_spd(struct r8152 *tp, bool enable)
-{
-	/* MAC clock speed down */
-	if (enable) {
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL,
-			       ALDPS_SPDWN_RATIO);
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2,
-			       EEE_SPDWN_RATIO);
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3,
-			       PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN |
-			       U1U2_SPDWN_EN | L1_SPDWN_EN);
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4,
-			       PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN |
-			       TP100_SPDWN_EN | TP500_SPDWN_EN | EEE_SPDWN_EN |
-			       TP1000_SPDWN_EN);
-	} else {
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 0);
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 0);
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 0);
-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 0);
-	}
-}
-
 static void r8153_u1u2en(struct r8152 *tp, bool enable)
 {
 	u8 u1u2[8];

@@ -3355,11 +3332,9 @@ static void rtl8153_runtime_enable(struct r8152 *tp, bool enable)
 	if (enable) {
 		r8153_u1u2en(tp, false);
 		r8153_u2p3en(tp, false);
-		r8153_mac_clk_spd(tp, true);
 		rtl_runtime_suspend_enable(tp, true);
 	} else {
 		rtl_runtime_suspend_enable(tp, false);
-		r8153_mac_clk_spd(tp, false);
 
 		switch (tp->version) {
 		case RTL_VER_03:

@@ -4695,7 +4670,6 @@ static void r8153_first_init(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	r8153_mac_clk_spd(tp, false);
 	rxdy_gated_en(tp, true);
 	r8153_teredo_off(tp);

@@ -4746,8 +4720,6 @@ static void r8153_enter_oob(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	r8153_mac_clk_spd(tp, true);
-
 	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
 	ocp_data &= ~NOW_IS_OOB;
 	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

@@ -5473,10 +5445,15 @@ static void r8153_init(struct r8152 *tp)
 
 	ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);
 
+	/* MAC clock speed down */
+	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 0);
+	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 0);
+	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 0);
+	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 0);
+
 	r8153_power_cut_en(tp, false);
 	rtl_runtime_suspend_enable(tp, false);
 	r8153_u1u2en(tp, true);
-	r8153_mac_clk_spd(tp, false);
 	usb_enable_lpm(tp->udev);
 
 	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #10 lore raw

PATCH 10/221 ALSA: hda: ignore invalid NHLT table

From: Mark Pearson <[email protected]>

[ Upstream commit a14a6219996ee6f6e858d83b11affc7907633687 ]

On some Lenovo systems if the microphone is disabled in the BIOS only the NHLT table header is created, with no data. This means the endpoints field is not correctly set to zero - leading to an unintialised variable and hence invalid descriptors are parsed leading to page faults.

The Lenovo firmware team is addressing this, but adding a check preventing invalid tables being parsed is worthwhile.

Tested on a Lenovo T14.

Tested-by Philipp Leskovitz <[email protected]>

Reported-by Philipp Leskovitz <[email protected]>

Signed-off-by Mark Pearson <[email protected]>

Reviewed-by Pierre-Louis Bossart <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Takashi Iwai <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 sound/hda/intel-nhlt.c | 5 +++++
 1 file changed, 5 insertions(+)

sound/hda/intel-nhlt.c +5 -0

index d053beccfaec..e2237239d922 100644
@@ -39,6 +39,11 @@ int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt)
 	if (!nhlt)
 		return 0;
 
+	if (nhlt->header.length <= sizeof(struct acpi_table_header)) {
+		dev_warn(dev, "Invalid DMIC description table\n");
+		return 0;
+	}
+
 	for (j = 0, epnt = nhlt->desc; j < nhlt->endpoint_count; j++,
 	     epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length)) {

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #11 lore raw

PATCH 11/221 ixgbe: Fix memleak in ixgbe_configure_clsu32

From: Dinghao Liu <[email protected]>

[ Upstream commit 7a766381634da19fc837619b0a34590498d9d29a ]

When ixgbe_fdir_write_perfect_filter_82599() fails, input allocated by kzalloc() has not been freed, which leads to memleak.

Signed-off-by Dinghao Liu <[email protected]>

Reviewed-by Paul Menzel <[email protected]>

Tested-by Tony Brelinski <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +4 -2

index f3f449f53920..278fc866fad4 100644
@@ -9582,8 +9582,10 @@ static int ixgbe_configure_clsu32(struct ixgbe_adapter *adapter,
 	ixgbe_atr_compute_perfect_hash_82599(&input->filter, mask);
 	err = ixgbe_fdir_write_perfect_filter_82599(hw, &input->filter,
 						    input->sw_idx, queue);
-	if (!err)
-		ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
+	if (err)
+		goto err_out_w_lock;
+
+	ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
 	spin_unlock(&adapter->fdir_perfect_lock);
 
 	if ((uhtid != 0x800) && (adapter->jump_tables[uhtid]))

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #12 lore raw

PATCH 12/221 scsi: ufs: ufs-qcom: Disable interrupt in reset path

From: Nitin Rawat <[email protected]>

[ Upstream commit 4a791574a0ccf36eb3a0a46fbd71d2768df3eef9 ]

Disable interrupt in reset path to flush pending IRQ handler in order to avoid possible NoC issues.

Link https://lore.kernel.org/r/[email protected] open here

Reviewed-by Avri Altman <[email protected]>

Signed-off-by Nitin Rawat <[email protected]>

Signed-off-by Can Guo <[email protected]>

Signed-off-by Martin K. Petersen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/scsi/ufs/ufs-qcom.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

drivers/scsi/ufs/ufs-qcom.c +10 -0

index a244c8ae1b4e..20182e39cb28 100644
@@ -253,12 +253,17 @@ static int ufs_qcom_host_reset(struct ufs_hba *hba)
 {
 	int ret = 0;
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
+	bool reenable_intr = false;
 
 	if (!host->core_reset) {
 		dev_warn(hba->dev, "%s: reset control not set\n", __func__);
 		goto out;
 	}
 
+	reenable_intr = hba->is_irq_enabled;
+	disable_irq(hba->irq);
+	hba->is_irq_enabled = false;
+
 	ret = reset_control_assert(host->core_reset);
 	if (ret) {
 		dev_err(hba->dev, "%s: core_reset assert failed, err = %d\n",

@@ -280,6 +285,11 @@ static int ufs_qcom_host_reset(struct ufs_hba *hba)
 
 	usleep_range(1000, 1100);
 
+	if (reenable_intr) {
+		enable_irq(hba->irq);
+		hba->is_irq_enabled = true;
+	}
+
 out:
 	return ret;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #13 lore raw

PATCH 13/221 blk-cgroup: Fix the recursive blkg rwstat

From: Xunlei Pang <[email protected]>

[ Upstream commit 4f44657d74873735e93a50eb25014721a66aac19 ]

The current blkio.throttle.io_service_bytes_recursive doesn't work correctly.

As an example, for the following blkcg hierarchy:
(Made 1GB READ in test1, 512MB READ in test2)

     test
    /    \

test1 test2

$ head -n 1 test/test1/blkio.throttle.io_service_bytes_recursive
8:0 Read 1073684480
$ head -n 1 test/test2/blkio.throttle.io_service_bytes_recursive
8:0 Read 537448448
$ head -n 1 test/blkio.throttle.io_service_bytes_recursive
8:0 Read 537448448

Clearly, above data of "test" reflects "test2" not "test1"+"test2".

Do the correct summary in blkg_rwstat_recursive_sum().

Signed-off-by Xunlei Pang <[email protected]>

Signed-off-by Jens Axboe <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 block/blk-cgroup-rwstat.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

block/blk-cgroup-rwstat.c +2 -1

index 85d5790ac49b..3304e841df7c 100644
@@ -109,6 +109,7 @@ void blkg_rwstat_recursive_sum(struct blkcg_gq *blkg, struct blkcg_policy *pol,
 
 	lockdep_assert_held(&blkg->q->queue_lock);
 
+	memset(sum, 0, sizeof(*sum));
 	rcu_read_lock();
 	blkg_for_each_descendant_pre(pos_blkg, pos_css, blkg) {
 		struct blkg_rwstat *rwstat;

@@ -122,7 +123,7 @@ void blkg_rwstat_recursive_sum(struct blkcg_gq *blkg, struct blkcg_policy *pol,
 			rwstat = (void *)pos_blkg + off;
 
 		for (i = 0; i < BLKG_RWSTAT_NR; i++)
-			sum->cnt[i] = blkg_rwstat_read_counter(rwstat, i);
+			sum->cnt[i] += blkg_rwstat_read_counter(rwstat, i);
 	}
 	rcu_read_unlock();
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #14 lore raw

PATCH 14/221 net: tehuti: fix error return code in bdx_probe()

From: Jia-Ju Bai <[email protected]>

[ Upstream commit 38c26ff3048af50eee3fcd591921357ee5bfd9ee ]

When bdx_read_mac() fails, no error return code of bdx_probe() is assigned.
To fix this bug, err is assigned with -EFAULT as error return code.

Signed-off-by Jia-Ju Bai <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/tehuti/tehuti.c | 1 +
 1 file changed, 1 insertion(+)

drivers/net/ethernet/tehuti/tehuti.c +1 -0

index b8f4f419173f..d054c6e83b1c 100644
@@ -2044,6 +2044,7 @@ bdx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		/*bdx_hw_reset(priv); */
 		if (bdx_read_mac(priv)) {
 			pr_err("load MAC address failed\n");
+			err = -EFAULT;
 			goto err_out_iomap;
 		}
 		SET_NETDEV_DEV(ndev, &pdev->dev);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #15 lore raw

PATCH 15/221 net: intel: iavf: fix error return code of iavf_init_get_resources()

From: Jia-Ju Bai <[email protected]>

[ Upstream commit 6650d31f21b8a0043613ae0a4a2e42e49dc20b2d ]

When iavf_process_config() fails, no error return code of iavf_init_get_resources() is assigned.
To fix this bug, err is assigned with the return value of iavf_process_config(), and then err is checked.

Signed-off-by Jia-Ju Bai <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

drivers/net/ethernet/intel/iavf/iavf_main.c +2 -1

index 0a867d64d467..dc5b3c06d1e0 100644
@@ -1776,7 +1776,8 @@ static int iavf_init_get_resources(struct iavf_adapter *adapter)
 		goto err_alloc;
 	}
 
-	if (iavf_process_config(adapter))
+	err = iavf_process_config(adapter);
+	if (err)
 		goto err_alloc;
 	adapter->current_op = VIRTCHNL_OP_UNKNOWN;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #16 lore raw

PATCH 16/221 sun/niu: fix wrong RXMAC_BC_FRM_CNT_COUNT count

From: Denis Efremov <[email protected]>

[ Upstream commit 155b23e6e53475ca3b8c2a946299b4d4dd6a5a1e ]

RXMAC_BC_FRM_CNT_COUNT added to mp->rx_bcasts twice in a row in niu_xmac_interrupt(). Remove the second addition.

Signed-off-by Denis Efremov <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/sun/niu.c | 2 --
 1 file changed, 2 deletions(-)

drivers/net/ethernet/sun/niu.c +0 -2

index 68695d4afacd..707ccdd03b19 100644
@@ -3931,8 +3931,6 @@ static void niu_xmac_interrupt(struct niu *np)
 		mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT;
 	if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
 		mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
-	if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
-		mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
 	if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP)
 		mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT;
 	if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #17 lore raw

PATCH 17/221 gianfar: fix jumbo packets+napi+rx overrun crash

From: Michael Braun <[email protected]>

[ Upstream commit d8861bab48b6c1fc3cdbcab8ff9d1eaea43afe7f ]

When using jumbo packets and overrunning rx queue with napi enabled, the following sequence is observed in gfar_add_rx_frag:

   | lstatus                              |       | skb                   |
t  | lstatus,  size, flags                | first | len, data_len, *ptr   |
---+--------------------------------------+-------+-----------------------+
13 | 18002348, 9032, INTERRUPT LAST       | 0     | 9600, 8000,  f554c12e |
12 | 10000640, 1600, INTERRUPT            | 0     | 8000, 6400,  f554c12e |
11 | 10000640, 1600, INTERRUPT            | 0     | 6400, 4800,  f554c12e |
10 | 10000640, 1600, INTERRUPT            | 0     | 4800, 3200,  f554c12e |
09 | 10000640, 1600, INTERRUPT            | 0     | 3200, 1600,  f554c12e |
08 | 14000640, 1600, INTERRUPT FIRST      | 0     | 1600, 0,     f554c12e |
07 | 14000640, 1600, INTERRUPT FIRST      | 1     | 0,    0,     f554c12e |
06 | 1c000080, 128,  INTERRUPT LAST FIRST | 1     | 0,    0,     abf3bd6e |
05 | 18002348, 9032, INTERRUPT LAST       | 0     | 8000, 6400,  c5a57780 |
04 | 10000640, 1600, INTERRUPT            | 0     | 6400, 4800,  c5a57780 |
03 | 10000640, 1600, INTERRUPT            | 0     | 4800, 3200,  c5a57780 |
02 | 10000640, 1600, INTERRUPT            | 0     | 3200, 1600,  c5a57780 |
01 | 10000640, 1600, INTERRUPT            | 0     | 1600, 0,     c5a57780 |
00 | 14000640, 1600, INTERRUPT FIRST      | 1     | 0,    0,     c5a57780 |

So at t=7 a new packets is started but not finished, probably due to rx overrun - but rx overrun is not indicated in the flags. Instead a new packets starts at t=8. This results in skb->len to exceed size for the LAST fragment at t=13 and thus a negative fragment size added to the skb.

This then crashes:

kernel BUG at include/linux/skbuff.h:2277!

Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [c04689f4] skb_pull+0x2c/0x48
LR [c03f62ac] gfar_clean_rx_ring+0x2e4/0x844
Call Trace:
[ec4bfd38] [c06a84c4] _raw_spin_unlock_irqrestore+0x60/0x7c (unreliable)
[ec4bfda8] [c03f6a44] gfar_poll_rx_sq+0x48/0xe4
[ec4bfdc8] [c048d504] __napi_poll+0x54/0x26c
[ec4bfdf8] [c048d908] net_rx_action+0x138/0x2c0
[ec4bfe68] [c06a8f34] __do_softirq+0x3a4/0x4fc
[ec4bfed8] [c0040150] run_ksoftirqd+0x58/0x70
[ec4bfee8] [c0066ecc] smpboot_thread_fn+0x184/0x1cc
[ec4bff08] [c0062718] kthread+0x140/0x144
[ec4bff38] [c0012350] ret_from_kernel_thread+0x14/0x1c

This patch fixes this by checking for computed LAST fragment size, so a negative sized fragment is never added.
In order to prevent the newer rx frame from getting corrupted, the FIRST flag is checked to discard the incomplete older frame.

Signed-off-by Michael Braun <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/freescale/gianfar.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

drivers/net/ethernet/freescale/gianfar.c +15 -0

index d391a45cebb6..4fab2ee5bbf5 100644
@@ -2391,6 +2391,10 @@ static bool gfar_add_rx_frag(struct gfar_rx_buff *rxb, u32 lstatus,
 		if (lstatus & BD_LFLAG(RXBD_LAST))
 			size -= skb->len;
 
+		WARN(size < 0, "gianfar: rx fragment size underflow");
+		if (size < 0)
+			return false;
+
 		skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
 				rxb->page_offset + RXBUF_ALIGNMENT,
 				size, GFAR_RXB_TRUESIZE);

@@ -2553,6 +2557,17 @@ static int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue,
 		if (lstatus & BD_LFLAG(RXBD_EMPTY))
 			break;
 
+		/* lost RXBD_LAST descriptor due to overrun */
+		if (skb &&
+		    (lstatus & BD_LFLAG(RXBD_FIRST))) {
+			/* discard faulty buffer */
+			dev_kfree_skb(skb);
+			skb = NULL;
+			rx_queue->stats.rx_dropped++;
+
+			/* can continue normally */
+		}
+
 		/* order rx buffer descriptor reads */
 		rmb();

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #18 lore raw

PATCH 18/221 cifs: ask for more credit on async read/write code paths

From: Aurelien Aptel <[email protected]>

[ Upstream commit 88fd98a2306755b965e4f4567f84e73db3b6738c ]

When doing a large read or write workload we only very gradually increase the number of credits which can cause problems with parallelizing large i/o (I/O ramps up more slowly than it should for large read/write workloads) especially with multichannel when the number of credits on the secondary channels starts out low (e.g. less than about 130) or when recovering after server throttled back the number of credit.

Signed-off-by Aurelien Aptel <[email protected]>

Reviewed-by Shyam Prasad N <[email protected]>

Signed-off-by Steve French <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 fs/cifs/smb2pdu.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

fs/cifs/smb2pdu.c +2 -4

index c6f8bc6729aa..d1d550647cd6 100644
@@ -4032,8 +4032,7 @@ smb2_async_readv(struct cifs_readdata *rdata)
 	if (rdata->credits.value > 0) {
 		shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(rdata->bytes,
 						SMB2_MAX_BUFFER_SIZE));
-		shdr->CreditRequest =
-			cpu_to_le16(le16_to_cpu(shdr->CreditCharge) + 1);
+		shdr->CreditRequest = cpu_to_le16(le16_to_cpu(shdr->CreditCharge) + 8);
 
 		rc = adjust_credits(server, &rdata->credits, rdata->bytes);
 		if (rc)

@@ -4339,8 +4338,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
 	if (wdata->credits.value > 0) {
 		shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(wdata->bytes,
 						    SMB2_MAX_BUFFER_SIZE));
-		shdr->CreditRequest =
-			cpu_to_le16(le16_to_cpu(shdr->CreditCharge) + 1);
+		shdr->CreditRequest = cpu_to_le16(le16_to_cpu(shdr->CreditCharge) + 8);
 
 		rc = adjust_credits(server, &wdata->credits, wdata->bytes);
 		if (rc)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #19 lore raw

PATCH 19/221 gfs2: fix use-after-free in trans_drain

From: Bob Peterson <[email protected]>

[ Upstream commit 1a5a2cfd34c17db73c53ef127272c8c1ae220485 ]

This patch adds code to function trans_drain to remove drained bd elements from the ail lists, if queued, before freeing the bd. If we don't remove the bd from the ail, function ail_drain will try to reference the bd after it has been freed by trans_drain.

Thanks to Andy Price for his analysis of the problem.

Reported-by Andy Price <[email protected]>

Signed-off-by Bob Peterson <[email protected]>

Signed-off-by Andreas Gruenbacher <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 fs/gfs2/log.c   | 4 ++++
 fs/gfs2/trans.c | 2 ++
 2 files changed, 6 insertions(+)

fs/gfs2/log.c +4 -0

index 2e9314091c81..1955dea999f7 100644
@@ -935,12 +935,16 @@ static void trans_drain(struct gfs2_trans *tr)
 	while (!list_empty(head)) {
 		bd = list_first_entry(head, struct gfs2_bufdata, bd_list);
 		list_del_init(&bd->bd_list);
+		if (!list_empty(&bd->bd_ail_st_list))
+			gfs2_remove_from_ail(bd);
 		kmem_cache_free(gfs2_bufdata_cachep, bd);
 	}
 	head = &tr->tr_databuf;
 	while (!list_empty(head)) {
 		bd = list_first_entry(head, struct gfs2_bufdata, bd_list);
 		list_del_init(&bd->bd_list);
+		if (!list_empty(&bd->bd_ail_st_list))
+			gfs2_remove_from_ail(bd);
 		kmem_cache_free(gfs2_bufdata_cachep, bd);
 	}
 }

fs/gfs2/trans.c +2 -0

index 6d4bf7ea7b3b..7f850ff6a05d 100644
@@ -134,6 +134,8 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl,
 	bd->bd_bh = bh;
 	bd->bd_gl = gl;
 	INIT_LIST_HEAD(&bd->bd_list);
+	INIT_LIST_HEAD(&bd->bd_ail_st_list);
+	INIT_LIST_HEAD(&bd->bd_ail_gl_list);
 	bh->b_private = bd;
 	return bd;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #20 lore raw

PATCH 20/221 cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev

From: Sudeep Holla <[email protected]>

[ Upstream commit fbb31cb805fd3574d3be7defc06a7fd2fd9af7d2 ]

Add "arm,vexpress" to cpufreq-dt-platdev blacklist since the actual scaling is handled by the firmware cpufreq drivers(scpi, scmi and vexpress-spc).

Signed-off-by Sudeep Holla <[email protected]>

Signed-off-by Viresh Kumar <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/cpufreq/cpufreq-dt-platdev.c +2 -0

index 3776d960f405..1c192a42f11e 100644
@@ -103,6 +103,8 @@ static const struct of_device_id whitelist[] __initconst = {
 static const struct of_device_id blacklist[] __initconst = {
 	{ .compatible = "allwinner,sun50i-h6", },
 
+	{ .compatible = "arm,vexpress", },
+
 	{ .compatible = "calxeda,highbank", },
 	{ .compatible = "calxeda,ecx-2000", },

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #21 lore raw

PATCH 21/221 gpiolib: acpi: Add missing IRQF_ONESHOT

From: Yang Li <[email protected]>

[ Upstream commit 6e5d5791730b55a1f987e1db84b078b91eb49e99 ]

fixed the following coccicheck:
./drivers/gpio/gpiolib-acpi.c:176:7-27: ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT

Make sure threaded IRQs without a primary handler are always request with IRQF_ONESHOT

Reported-by Abaci Robot <[email protected]>

Signed-off-by Yang Li <[email protected]>

Acked-by Andy Shevchenko <[email protected]>

Signed-off-by Andy Shevchenko <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/gpio/gpiolib-acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/gpio/gpiolib-acpi.c +1 -1

index 49a1f8ce4baa..863f059bc498 100644
@@ -174,7 +174,7 @@ static void acpi_gpiochip_request_irq(struct acpi_gpio_chip *acpi_gpio,
 	int ret, value;
 
 	ret = request_threaded_irq(event->irq, NULL, event->handler,
-				   event->irqflags, "ACPI:Event", event);
+				   event->irqflags | IRQF_ONESHOT, "ACPI:Event", event);
 	if (ret) {
 		dev_err(acpi_gpio->chip->parent,
 			"Failed to setup interrupt handler for %d\n",

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #22 lore raw

PATCH 22/221 nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default

From: Timo Rothenpieler <[email protected]>

[ Upstream commit a0590473c5e6c4ef17c3132ad08fbad170f72d55 ]

This follows what was done in 8c2fabc6542d9d0f8b16bd1045c2eda59bdcde13. With the default being m, it's impossible to build the module into the kernel.

Signed-off-by Timo Rothenpieler <[email protected]>

Signed-off-by Anna Schumaker <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 fs/nfs/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

fs/nfs/Kconfig +1 -1

index e2a488d403a6..14a72224b657 100644
@@ -127,7 +127,7 @@ config PNFS_BLOCK
 config PNFS_FLEXFILE_LAYOUT
 	tristate
 	depends on NFS_V4_1 && NFS_V3
-	default m
+	default NFS_V4
 
 config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
 	string "NFSv4.1 Implementation ID Domain"

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #23 lore raw

PATCH 23/221 NFS: Correct size calculation for create reply length

From: Frank Sorenson <[email protected]>

[ Upstream commit ad3dbe35c833c2d4d0bbf3f04c785d32f931e7c9 ]

CREATE requests return a post_op_fh3, rather than nfs_fh3. The post_op_fh3 includes an extra word to indicate 'handle_follows'.

Without that additional word, create fails when full 64-byte filehandles are in use.

Add NFS3_post_op_fh_sz, and correct the size calculation for NFS3_createres_sz.

Signed-off-by Frank Sorenson <[email protected]>

Signed-off-by Anna Schumaker <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 fs/nfs/nfs3xdr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

fs/nfs/nfs3xdr.c +2 -1

index 69971f6c840d..dff6b52d26a8 100644
@@ -35,6 +35,7 @@
  */
 #define NFS3_fhandle_sz		(1+16)
 #define NFS3_fh_sz		(NFS3_fhandle_sz)	/* shorthand */
+#define NFS3_post_op_fh_sz	(1+NFS3_fh_sz)
 #define NFS3_sattr_sz		(15)
 #define NFS3_filename_sz	(1+(NFS3_MAXNAMLEN>>2))
 #define NFS3_path_sz		(1+(NFS3_MAXPATHLEN>>2))

@@ -72,7 +73,7 @@
 #define NFS3_readlinkres_sz	(1+NFS3_post_op_attr_sz+1+1)
 #define NFS3_readres_sz		(1+NFS3_post_op_attr_sz+3+1)
 #define NFS3_writeres_sz	(1+NFS3_wcc_data_sz+4)
-#define NFS3_createres_sz	(1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
+#define NFS3_createres_sz	(1+NFS3_post_op_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
 #define NFS3_renameres_sz	(1+(2 * NFS3_wcc_data_sz))
 #define NFS3_linkres_sz		(1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
 #define NFS3_readdirres_sz	(1+NFS3_post_op_attr_sz+2+1)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #24 lore raw

PATCH 24/221 net: hisilicon: hns: fix error return code of hns_nic_clear_all_rx_fetch()

From: Jia-Ju Bai <[email protected]>

[ Upstream commit 143c253f42bad20357e7e4432087aca747c43384 ]

When hns_assemble_skb() returns NULL to skb, no error return code of hns_nic_clear_all_rx_fetch() is assigned.
To fix this bug, ret is assigned with -ENOMEM in this case.

Signed-off-by Jia-Ju Bai <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

drivers/net/ethernet/hisilicon/hns/hns_enet.c +3 -1

index 858cb293152a..8bce5f1510be 100644
@@ -1663,8 +1663,10 @@ static int hns_nic_clear_all_rx_fetch(struct net_device *ndev)
 			for (j = 0; j < fetch_num; j++) {
 				/* alloc one skb and init */
 				skb = hns_assemble_skb(ndev);
-				if (!skb)
+				if (!skb) {
+					ret = -ENOMEM;
 					goto out;
+				}
 				rd = &tx_ring_data(priv, skb->queue_mapping);
 				hns_nic_net_xmit_hw(ndev, skb, rd);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #25 lore raw

PATCH 25/221 net: wan: fix error return code of uhdlc_init()

From: Jia-Ju Bai <[email protected]>

[ Upstream commit 62765d39553cfd1ad340124fe1e280450e8c89e2 ]

When priv->rx_skbuff or priv->tx_skbuff is NULL, no error return code of uhdlc_init() is assigned.
To fix this bug, ret is assigned with -ENOMEM in these cases.

Signed-off-by Jia-Ju Bai <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/wan/fsl_ucc_hdlc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

drivers/net/wan/fsl_ucc_hdlc.c +6 -2

index dca97cd7c4e7..7eac6a3e1cde 100644
@@ -204,14 +204,18 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
 	priv->rx_skbuff = kcalloc(priv->rx_ring_size,
 				  sizeof(*priv->rx_skbuff),
 				  GFP_KERNEL);
-	if (!priv->rx_skbuff)
+	if (!priv->rx_skbuff) {
+		ret = -ENOMEM;
 		goto free_ucc_pram;
+	}
 
 	priv->tx_skbuff = kcalloc(priv->tx_ring_size,
 				  sizeof(*priv->tx_skbuff),
 				  GFP_KERNEL);
-	if (!priv->tx_skbuff)
+	if (!priv->tx_skbuff) {
+		ret = -ENOMEM;
 		goto free_rx_skbuff;
+	}
 
 	priv->skb_curtx = 0;
 	priv->skb_dirtytx = 0;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #26 lore raw

PATCH 26/221 net: davicom: Use platform_get_irq_optional()

From: Paul Cercueil <[email protected]>

[ Upstream commit 2e2696223676d56db1a93acfca722c1b96cd552d ]

The second IRQ line really is optional, so use platform_get_irq_optional() to obtain it.

Signed-off-by Paul Cercueil <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/davicom/dm9000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/net/ethernet/davicom/dm9000.c +1 -1

index ba7f857d1710..ae09cac87602 100644
@@ -1510,7 +1510,7 @@ dm9000_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	db->irq_wake = platform_get_irq(pdev, 1);
+	db->irq_wake = platform_get_irq_optional(pdev, 1);
 	if (db->irq_wake >= 0) {
 		dev_dbg(db->dev, "wakeup irq %d\n", db->irq_wake);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #27 lore raw

PATCH 27/221 net: enetc: set MAC RX FIFO to recommended value

From: Alex Marginean <[email protected]>

[ Upstream commit 1b2395dfff5bb40228a187f21f577cd90673d344 ]

On LS1028A, the MAC RX FIFO defaults to the value 2, which is too high and may lead to RX lock-up under traffic at a rate higher than 6 Gbps. Set it to 1 instead, as recommended by the hardware design team and by later versions of the ENETC block guide.

Signed-off-by Alex Marginean <[email protected]>

Reviewed-by Claudiu Manoil <[email protected]>

Reviewed-by Jason Liu <[email protected]>

Signed-off-by Vladimir Oltean <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/freescale/enetc/enetc_hw.h | 2 ++
 drivers/net/ethernet/freescale/enetc/enetc_pf.c | 6 ++++++
 2 files changed, 8 insertions(+)

drivers/net/ethernet/freescale/enetc/enetc_hw.h +2 -0

index 21a6ce415cb2..2b90a345507b 100644
@@ -234,6 +234,8 @@ enum enetc_bdr_type {TX, RX};
 #define ENETC_PM0_MAXFRM	0x8014
 #define ENETC_SET_TX_MTU(val)	((val) << 16)
 #define ENETC_SET_MAXFRM(val)	((val) & 0xffff)
+#define ENETC_PM0_RX_FIFO	0x801c
+#define ENETC_PM0_RX_FIFO_VAL	1
 
 #define ENETC_PM_IMDIO_BASE	0x8030

drivers/net/ethernet/freescale/enetc/enetc_pf.c +6 -0

index 83187cd59fdd..68133563a40c 100644
@@ -490,6 +490,12 @@ static void enetc_configure_port_mac(struct enetc_hw *hw)
 
 	enetc_port_wr(hw, ENETC_PM1_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN |
 		      ENETC_PM0_CMD_TXP	| ENETC_PM0_PROMISC);
+
+	/* On LS1028A, the MAC RX FIFO defaults to 2, which is too high
+	 * and may lead to RX lock-up under traffic. Set it to 1 instead,
+	 * as recommended by the hardware team.
+	 */
+	enetc_port_wr(hw, ENETC_PM0_RX_FIFO, ENETC_PM0_RX_FIFO_VAL);
 }
 
 static void enetc_mac_config(struct enetc_hw *hw, phy_interface_t phy_mode)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #28 lore raw

PATCH 28/221 atm: uPD98402: fix incorrect allocation

From: Tong Zhang <[email protected]>

[ Upstream commit 3153724fc084d8ef640c611f269ddfb576d1dcb1 ]

dev->dev_data is set in zatm.c, calling zatm_start() will overwrite this dev->dev_data in uPD98402_start() and a subsequent PRIV(dev)->lock (i.e dev->phy_data->lock) will result in a null-ptr-dereference.

I believe this is a typo and what it actually want to do is to allocate phy_data instead of dev_data.

Signed-off-by Tong Zhang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/atm/uPD98402.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/atm/uPD98402.c +1 -1

index 7850758b5bb8..239852d85558 100644
@@ -211,7 +211,7 @@ static void uPD98402_int(struct atm_dev *dev)
 static int uPD98402_start(struct atm_dev *dev)
 {
 	DPRINTK("phy_start\n");
-	if (!(dev->dev_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL)))
+	if (!(dev->phy_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL)))
 		return -ENOMEM;
 	spin_lock_init(&PRIV(dev)->lock);
 	memset(&PRIV(dev)->sonet_stats,0,sizeof(struct k_sonet_stats));

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #29 lore raw

PATCH 29/221 atm: idt77252: fix null-ptr-dereference

From: Tong Zhang <[email protected]>

[ Upstream commit 4416e98594dc04590ebc498fc4e530009535c511 ]

this one is similar to the phy_data allocation fix in uPD98402, the driver allocate the idt77105_priv and store to dev_data but later dereference using dev->dev_data, which will cause null-ptr-dereference.

fix this issue by changing dev_data to phy_data so that PRIV(dev) can work correctly.

Signed-off-by Tong Zhang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/atm/idt77105.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

drivers/atm/idt77105.c +2 -2

index 3c081b6171a8..bfca7b8a6f31 100644
@@ -262,7 +262,7 @@ static int idt77105_start(struct atm_dev *dev)
 {
 	unsigned long flags;
 
-	if (!(dev->dev_data = kmalloc(sizeof(struct idt77105_priv),GFP_KERNEL)))
+	if (!(dev->phy_data = kmalloc(sizeof(struct idt77105_priv),GFP_KERNEL)))
 		return -ENOMEM;
 	PRIV(dev)->dev = dev;
 	spin_lock_irqsave(&idt77105_priv_lock, flags);

@@ -337,7 +337,7 @@ static int idt77105_stop(struct atm_dev *dev)
                 else
                     idt77105_all = walk->next;
 	        dev->phy = NULL;
-                dev->dev_data = NULL;
+                dev->phy_data = NULL;
                 kfree(walk);
                 break;
             }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #30 lore raw

PATCH 30/221 cifs: change noisy error message to FYI

From: Paulo Alcantara <[email protected]>

[ Upstream commit e3d100eae44b42f309c1366efb8397368f1cf8ed ]

A customer has reported that their dmesg were being flooded by

CIFS: VFS: \\server Cancelling wait for mid xxx cmd: a
CIFS: VFS: \\server Cancelling wait for mid yyy cmd: b
CIFS: VFS: \\server Cancelling wait for mid zzz cmd: c

because some processes that were performing statfs(2) on the share had been interrupted due to their automount setup when certain users logged in and out.

Change it to FYI as they should be mostly informative rather than error messages.

Signed-off-by Paulo Alcantara (SUSE) <[email protected]>

Reviewed-by Aurelien Aptel <[email protected]>

Reviewed-by Ronnie Sahlberg <[email protected]>

Signed-off-by Steve French <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 fs/cifs/transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

fs/cifs/transport.c +1 -1

index 7b45b3b79df5..503a0056b60f 100644
@@ -1170,7 +1170,7 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
 	}
 	if (rc != 0) {
 		for (; i < num_rqst; i++) {
-			cifs_server_dbg(VFS, "Cancelling wait for mid %llu cmd: %d\n",
+			cifs_server_dbg(FYI, "Cancelling wait for mid %llu cmd: %d\n",
 				 midQ[i]->mid, le16_to_cpu(midQ[i]->command));
 			send_cancel(server, &rqst[i], midQ[i]);
 			spin_lock(&GlobalMid_Lock);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #31 lore raw

PATCH 31/221 irqchip/ingenic: Add support for the JZ4760

From: Paul Cercueil <[email protected]>

[ Upstream commit 5fbecd2389f48e1415799c63130d0cdce1cf3f60 ]

Add support for the interrupt controller found in the JZ4760 SoC, which works exactly like the one in the JZ4770.

Signed-off-by Paul Cercueil <[email protected]>

Signed-off-by Marc Zyngier <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/irqchip/irq-ingenic-tcu.c | 1 +
 drivers/irqchip/irq-ingenic.c     | 1 +
 2 files changed, 2 insertions(+)

drivers/irqchip/irq-ingenic-tcu.c +1 -0

index 7a7222d4c19c..b938d1d04d96 100644
@@ -179,5 +179,6 @@ static int __init ingenic_tcu_irq_init(struct device_node *np,
 }
 IRQCHIP_DECLARE(jz4740_tcu_irq, "ingenic,jz4740-tcu", ingenic_tcu_irq_init);
 IRQCHIP_DECLARE(jz4725b_tcu_irq, "ingenic,jz4725b-tcu", ingenic_tcu_irq_init);
+IRQCHIP_DECLARE(jz4760_tcu_irq, "ingenic,jz4760-tcu", ingenic_tcu_irq_init);
 IRQCHIP_DECLARE(jz4770_tcu_irq, "ingenic,jz4770-tcu", ingenic_tcu_irq_init);
 IRQCHIP_DECLARE(x1000_tcu_irq, "ingenic,x1000-tcu", ingenic_tcu_irq_init);

drivers/irqchip/irq-ingenic.c +1 -0

index b61a8901ef72..ea36bb00be80 100644
@@ -155,6 +155,7 @@ static int __init intc_2chip_of_init(struct device_node *node,
 {
 	return ingenic_intc_of_init(node, 2);
 }
+IRQCHIP_DECLARE(jz4760_intc, "ingenic,jz4760-intc", intc_2chip_of_init);
 IRQCHIP_DECLARE(jz4770_intc, "ingenic,jz4770-intc", intc_2chip_of_init);
 IRQCHIP_DECLARE(jz4775_intc, "ingenic,jz4775-intc", intc_2chip_of_init);
 IRQCHIP_DECLARE(jz4780_intc, "ingenic,jz4780-intc", intc_2chip_of_init);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #32 lore raw

PATCH 32/221 kbuild: add image_name to no-sync-config-targets

From: Masahiro Yamada <[email protected]>

[ Upstream commit 993bdde94547887faaad4a97f0b0480a6da271c3 ]

'make image_name' needs include/config/auto.conf to show the correct output because KBUILD_IMAGE depends on CONFIG options, but should not attempt to resync the configuration.

Signed-off-by Masahiro Yamada <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Makefile +2 -1

index d4b87e604762..cb9a1592f72c 100644
@@ -265,7 +265,8 @@ no-dot-config-targets := $(clean-targets) \
 			 $(version_h) headers headers_% archheaders archscripts \
 			 %asm-generic kernelversion %src-pkg dt_binding_check \
 			 outputmakefile
-no-sync-config-targets := $(no-dot-config-targets) %install kernelrelease
+no-sync-config-targets := $(no-dot-config-targets) %install kernelrelease \
+			  image_name
 single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.s %.symtypes %/
 
 config-build	:=

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #33 lore raw

PATCH 33/221 kbuild: dummy-tools: fix inverted tests for gcc

From: Jiri Slaby <[email protected]>

[ Upstream commit b3d9fc1436808a4ef9927e558b3415e728e710c5 ]

There is a test in Kconfig which takes inverted value of a compiler check:
* config CC_HAS_INT128

        def_bool !$(cc-option,$(m64-flag) -D__SIZEOF_INT128__=0)

This results in CC_HAS_INT128 not being in super-config generated by dummy-tools. So take this into account in the gcc script.

Signed-off-by Jiri Slaby <[email protected]>

Signed-off-by Masahiro Yamada <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 scripts/dummy-tools/gcc | 5 +++++
 1 file changed, 5 insertions(+)

scripts/dummy-tools/gcc +5 -0

index 33487e99d83e..11c9f045ee4b 100755
@@ -89,3 +89,8 @@ if arg_contain -print-file-name=plugin "$@"; then
 	echo $plugin_dir
 	exit 0
 fi
+
+# inverted return value
+if arg_contain -D__SIZEOF_INT128__=0 "$@"; then
+	exit 1
+fi

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #34 lore raw

PATCH 34/221 umem: fix error return code in mm_pci_probe()

From: Wei Yongjun <[email protected]>

[ Upstream commit eeb05595d22c19c8f814ff893dcf88ec277a2365 ]

Fix to return negative error code -ENOMEM from the blk_alloc_queue() and dma_alloc_coherent() error handling cases instead of 0, as done elsewhere in this function.

Reported-by Hulk Robot <[email protected]>

Signed-off-by Wei Yongjun <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Jens Axboe <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/block/umem.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

drivers/block/umem.c +4 -1

index 2b95d7b33b91..5eb44e4a91ee 100644
@@ -877,6 +877,7 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (card->mm_pages[0].desc == NULL ||
 	    card->mm_pages[1].desc == NULL) {
 		dev_printk(KERN_ERR, &card->dev->dev, "alloc failed\n");
+		ret = -ENOMEM;
 		goto failed_alloc;
 	}
 	reset_page(&card->mm_pages[0]);

@@ -888,8 +889,10 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	spin_lock_init(&card->lock);
 
 	card->queue = blk_alloc_queue(NUMA_NO_NODE);
-	if (!card->queue)
+	if (!card->queue) {
+		ret = -ENOMEM;
 		goto failed_alloc;
+	}
 
 	tasklet_init(&card->tasklet, process_page, (unsigned long)card);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #35 lore raw

PATCH 35/221 sparc64: Fix opcode filtering in handling of no fault loads

From: Rob Gardner <[email protected]>

[ Upstream commit e5e8b80d352ec999d2bba3ea584f541c83f4ca3f ]

is_no_fault_exception() has two bugs which were discovered via random opcode testing with stress-ng. Both are caused by improper filtering of opcodes.

The first bug can be triggered by a floating point store with a no-fault ASI, for instance "sta %f0, [%g0] #ASI_PNF", opcode C1A01040.

The code first tests op3[5] (0x1000000), which denotes a floating point instruction, and then tests op3[2] (0x200000), which denotes a store instruction. But these bits are not mutually exclusive, and the above mentioned opcode has both bits set. The intent is to filter out stores, so the test for stores must be done first in order to have any effect.

The second bug can be triggered by a floating point load with one of the invalid ASI values 0x8e or 0x8f, which pass this check in is_no_fault_exception():

     if ((asi & 0xf2) == ASI_PNF)

An example instruction is "ldqa [%l7 + %o7] #ASI 0x8f, %f38", opcode CF95D1EF. Asi values greater than 0x8b (ASI_SNFL) are fatal in handle_ldf_stq(), and is_no_fault_exception() must not allow these invalid asi values to make it that far.

In both of these cases, handle_ldf_stq() reacts by calling sun4v_data_access_exception() or spitfire_data_access_exception(), which call is_no_fault_exception() and results in an infinite recursion.

Signed-off-by Rob Gardner <[email protected]>

Tested-by Anatoly Pugachev <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 arch/sparc/kernel/traps_64.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

arch/sparc/kernel/traps_64.c +6 -7

index d92e5eaa4c1d..a850dccd78ea 100644
@@ -275,14 +275,13 @@ bool is_no_fault_exception(struct pt_regs *regs)
 			asi = (regs->tstate >> 24); /* saved %asi       */
 		else
 			asi = (insn >> 5);	    /* immediate asi    */
-		if ((asi & 0xf2) == ASI_PNF) {
-			if (insn & 0x1000000) {     /* op3[5:4]=3       */
-				handle_ldf_stq(insn, regs);
-				return true;
-			} else if (insn & 0x200000) { /* op3[2], stores */
+		if ((asi & 0xf6) == ASI_PNF) {
+			if (insn & 0x200000)        /* op3[2], stores   */
 				return false;
-			}
-			handle_ld_nf(insn, regs);
+			if (insn & 0x1000000)       /* op3[5:4]=3 (fp)  */
+				handle_ldf_stq(insn, regs);
+			else
+				handle_ld_nf(insn, regs);
 			return true;
 		}
 	}

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #36 lore raw

PATCH 36/221 habanalabs: Call put_pid() when releasing control device

From: Tomer Tayar <[email protected]>

[ Upstream commit 27ac5aada024e0821c86540ad18f37edadd77d5e ]

The refcount of the "hl_fpriv" structure is not used for the control device, and thus hl_hpriv_put() is not called when releasing this device.
This results with no call to put_pid(), so add it explicitly in hl_device_release_ctrl().

Signed-off-by Tomer Tayar <[email protected]>

Reviewed-by Oded Gabbay <[email protected]>

Signed-off-by Oded Gabbay <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/misc/habanalabs/common/device.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/misc/habanalabs/common/device.c +2 -0

index 71b3a4d5adc6..7b0bf470795c 100644
@@ -106,6 +106,8 @@ static int hl_device_release_ctrl(struct inode *inode, struct file *filp)
 	list_del(&hpriv->dev_node);
 	mutex_unlock(&hdev->fpriv_list_lock);
 
+	put_pid(hpriv->taskpid);
+
 	kfree(hpriv);
 
 	return 0;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:18 UTC #37 lore raw

PATCH 37/221 staging: rtl8192e: fix kconfig dependency on CRYPTO

From: Julian Braha <[email protected]>

[ Upstream commit 7c36194558cf49a86a53b5f60db8046c5e3013ae ]

When RTLLIB_CRYPTO_TKIP is enabled and CRYPTO is disabled, Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for CRYPTO_MICHAEL_MIC
Depends on [n]: CRYPTO [=n]
Selected by [m]:
- RTLLIB_CRYPTO_TKIP [=m] && STAGING [=y] && RTLLIB [=m]

WARNING: unmet direct dependencies detected for CRYPTO_LIB_ARC4
Depends on [n]: CRYPTO [=n]
Selected by [m]:
- RTLLIB_CRYPTO_TKIP [=m] && STAGING [=y] && RTLLIB [=m]
- RTLLIB_CRYPTO_WEP [=m] && STAGING [=y] && RTLLIB [=m]

This is because RTLLIB_CRYPTO_TKIP selects CRYPTO_MICHAEL_MIC and CRYPTO_LIB_ARC4, without depending on or selecting CRYPTO, despite those config options being subordinate to CRYPTO.

Acked-by Randy Dunlap <[email protected]>

Signed-off-by Julian Braha <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Greg Kroah-Hartman <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/staging/rtl8192e/Kconfig | 1 +
 1 file changed, 1 insertion(+)

drivers/staging/rtl8192e/Kconfig +1 -0

index 03fcc23516fd..6e7d84ac06f5 100644
@@ -26,6 +26,7 @@ config RTLLIB_CRYPTO_CCMP
 config RTLLIB_CRYPTO_TKIP
 	tristate "Support for rtllib TKIP crypto"
 	depends on RTLLIB
+	select CRYPTO
 	select CRYPTO_LIB_ARC4
 	select CRYPTO_MICHAEL_MIC
 	default y

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #38 lore raw

PATCH 38/221 u64_stats,lockdep: Fix u64_stats_init() vs lockdep

From: Peter Zijlstra <[email protected]>

[ Upstream commit d5b0e0677bfd5efd17c5bbb00156931f0d41cb85 ]

Jakub reported that:

    static struct net_device *rtl8139_init_board(struct pci_dev *pdev)
    {
	    ...
	    u64_stats_init(&tp->rx_stats.syncp);
	    u64_stats_init(&tp->tx_stats.syncp);
	    ...
    }

results in lockdep getting confused between the RX and TX stats lock. This is because u64_stats_init() is an inline calling seqcount_init(), which is a macro using a static variable to generate a lockdep class.

By wrapping that in an inline, we negate the effect of the macro and fold the static key variable, hence the confusion.

Fix by also making u64_stats_init() a macro for the case where it matters, leaving the other case an inline for argument validation etc.

Reported-by Jakub Kicinski <[email protected]>

Debugged-by "Ahmed S. Darwish" <[email protected]>

Signed-off-by Peter Zijlstra (Intel) <[email protected]>

Tested-by "Erhard F." <[email protected]>

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 include/linux/u64_stats_sync.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

include/linux/u64_stats_sync.h +4 -3

index c6abb79501b3..e81856c0ba13 100644
@@ -115,12 +115,13 @@ static inline void u64_stats_inc(u64_stats_t *p)
 }
 #endif
 
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+#define u64_stats_init(syncp)	seqcount_init(&(syncp)->seq)
+#else
 static inline void u64_stats_init(struct u64_stats_sync *syncp)
 {
-#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
-	seqcount_init(&syncp->seq);
-#endif
 }
+#endif
 
 static inline void u64_stats_update_begin(struct u64_stats_sync *syncp)
 {

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #39 lore raw

PATCH 39/221 kselftest: arm64: Fix exit code of sve-ptrace

From: Mark Brown <[email protected]>

[ Upstream commit 07e644885bf6727a48db109fad053cb43f3c9859 ]

We track if sve-ptrace encountered a failure in a variable but don't actually use that value when we exit the program, do so.

Signed-off-by Mark Brown <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Will Deacon <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 tools/testing/selftests/arm64/fp/sve-ptrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

tools/testing/selftests/arm64/fp/sve-ptrace.c +1 -1

index b2282be6f938..612d3899614a 100644
@@ -332,5 +332,5 @@ int main(void)
 
 	ksft_print_cnts();
 
-	return 0;
+	return ret;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #40 lore raw

PATCH 40/221 regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck

From: satya priya <[email protected]>

[ Upstream commit e610e072c87a30658479a7b4c51e1801cb3f450c ]

Correct the REGULATOR_LINEAR_RANGE and n_voltges for pmic5_hfsmps515 buck.

Signed-off-by satya priya <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Mark Brown <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/regulator/qcom-rpmh-regulator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

drivers/regulator/qcom-rpmh-regulator.c +2 -2

index 52e4396d4071..c3036591b259 100644
@@ -726,8 +726,8 @@ static const struct rpmh_vreg_hw_data pmic5_ftsmps510 = {
 static const struct rpmh_vreg_hw_data pmic5_hfsmps515 = {
 	.regulator_type = VRM,
 	.ops = &rpmh_regulator_vrm_ops,
-	.voltage_range = REGULATOR_LINEAR_RANGE(2800000, 0, 4, 16000),
-	.n_voltages = 5,
+	.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 235, 16000),
+	.n_voltages = 236,
 	.pmic_mode_map = pmic_mode_map_pmic5_smps,
 	.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
 };

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #41 lore raw

PATCH 41/221 block: Fix REQ_OP_ZONE_RESET_ALL handling

From: Damien Le Moal <[email protected]>

[ Upstream commit faa44c69daf9ccbd5b8a1aee13e0e0d037c0be17 ]

Similarly to a single zone reset operation (REQ_OP_ZONE_RESET), execute REQ_OP_ZONE_RESET_ALL operations with REQ_SYNC set.

Signed-off-by Damien Le Moal <[email protected]>

Signed-off-by Jens Axboe <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 block/blk-zoned.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

block/blk-zoned.c +1 -1

index 4676c6f00489..ab7d7ebcf6dd 100644
@@ -240,7 +240,7 @@ int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
 		 */
 		if (op == REQ_OP_ZONE_RESET &&
 		    blkdev_allow_reset_all_zones(bdev, sector, nr_sectors)) {
-			bio->bi_opf = REQ_OP_ZONE_RESET_ALL;
+			bio->bi_opf = REQ_OP_ZONE_RESET_ALL | REQ_SYNC;
 			break;
 		}

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #42 lore raw

PATCH 42/221 drm/amd/display: Revert dram_clock_change_latency for DCN2.1

From: Sung Lee <[email protected]>

[ Upstream commit b0075d114c33580f5c9fa9cee8e13d06db41471b ]

[WHY & HOW]
Using values provided by DF for latency may cause hangs in multi display configurations. Revert change to previous value.

Tested-by Daniel Wheeler <[email protected]>

Signed-off-by Sung Lee <[email protected]>

Reviewed-by Haonan Wang <[email protected]>

Acked-by Eryk Brol <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +1 -1

index b5fe2a008bd4..7ed4d7c8734f 100644
@@ -295,7 +295,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = {
 	.num_banks = 8,
 	.num_chans = 4,
 	.vmm_page_size_bytes = 4096,
-	.dram_clock_change_latency_us = 11.72,
+	.dram_clock_change_latency_us = 23.84,
 	.return_bus_width_bytes = 64,
 	.dispclk_dppclk_vco_speed_mhz = 3600,
 	.xfc_bus_transport_time_us = 4,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #43 lore raw

PATCH 43/221 drm/amdgpu: fb BO should be ttm_bo_type_device

From: Nirmoy Das <[email protected]>

[ Upstream commit 521f04f9e3ffc73ef96c776035f8a0a31b4cdd81 ]

FB BO should not be ttm_bo_type_kernel type and amdgpufb_create_pinned_object() pins the FB BO anyway.

Signed-off-by Nirmoy Das <[email protected]>

Acked-by Christian König <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +1 -1

index e2c2eb45a793..1ea8af48ae2f 100644
@@ -146,7 +146,7 @@ static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev,
 	size = mode_cmd->pitches[0] * height;
 	aligned_size = ALIGN(size, PAGE_SIZE);
 	ret = amdgpu_gem_object_create(adev, aligned_size, 0, domain, flags,
-				       ttm_bo_type_kernel, NULL, &gobj);
+				       ttm_bo_type_device, NULL, &gobj);
 	if (ret) {
 		pr_err("failed to allocate framebuffer (%d)\n", aligned_size);
 		return -ENOMEM;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #44 lore raw

PATCH 44/221 drm/radeon: fix AGP dependency

From: Christian König <[email protected]>

[ Upstream commit cba2afb65cb05c3d197d17323fee4e3c9edef9cd ]

When AGP is compiled as module radeon must be compiled as module as well.

Signed-off-by Christian König <[email protected]>

Reviewed-by Alex Deucher <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/gpu/drm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

drivers/gpu/drm/Kconfig +1 -0

index 16f73c102394..ca868271f4c4 100644
@@ -239,6 +239,7 @@ source "drivers/gpu/drm/arm/Kconfig"
 config DRM_RADEON
 	tristate "ATI Radeon"
 	depends on DRM && PCI && MMU
+	depends on AGP || !AGP
 	select FW_LOADER
         select DRM_KMS_HELPER
         select DRM_TTM

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #45 lore raw

PATCH 45/221 nvme: simplify error logic in nvme_validate_ns()

From: Hannes Reinecke <[email protected]>

[ Upstream commit d95c1f4179a7f3ea8aa728ed00252a8ed0f8158f ]

We only should remove namespaces when we get fatal error back from the device or when the namespace IDs have changed.
So instead of painfully masking out error numbers which might indicate that the error should be ignored we could use an NVME status code to indicated when the namespace should be removed.
That simplifies the final logic and makes it less error-prone.

Reviewed-by Keith Busch <[email protected]>

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/host/core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

drivers/nvme/host/core.c +4 -4

index de846aaa8728..fbe2918ade78 100644
@@ -1371,7 +1371,7 @@ static int nvme_identify_ns(struct nvme_ctrl *ctrl, unsigned nsid,
 		goto out_free_id;
 	}
 
-	error = -ENODEV;
+	error = NVME_SC_INVALID_NS | NVME_SC_DNR;
 	if ((*id)->ncap == 0) /* namespace not allocated or attached */
 		goto out_free_id;

@@ -3959,7 +3959,7 @@ static void nvme_ns_remove_by_nsid(struct nvme_ctrl *ctrl, u32 nsid)
 static void nvme_validate_ns(struct nvme_ns *ns, struct nvme_ns_ids *ids)
 {
 	struct nvme_id_ns *id;
-	int ret = -ENODEV;
+	int ret = NVME_SC_INVALID_NS | NVME_SC_DNR;
 
 	if (test_bit(NVME_NS_DEAD, &ns->flags))
 		goto out;

@@ -3968,7 +3968,7 @@ static void nvme_validate_ns(struct nvme_ns *ns, struct nvme_ns_ids *ids)
 	if (ret)
 		goto out;
 
-	ret = -ENODEV;
+	ret = NVME_SC_INVALID_NS | NVME_SC_DNR;
 	if (!nvme_ns_ids_equal(&ns->head->ids, ids)) {
 		dev_err(ns->ctrl->device,
 			"identifiers changed for nsid %d\n", ns->head->ns_id);

@@ -3986,7 +3986,7 @@ static void nvme_validate_ns(struct nvme_ns *ns, struct nvme_ns_ids *ids)
 	 *
 	 * TODO: we should probably schedule a delayed retry here.
 	 */
-	if (ret && ret != -ENOMEM && !(ret > 0 && !(ret & NVME_SC_DNR)))
+	if (ret > 0 && (ret & NVME_SC_DNR))
 		nvme_ns_remove(ns);
 	else
 		revalidate_disk_size(ns->disk, true);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #46 lore raw

PATCH 46/221 nvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()

From: Hannes Reinecke <[email protected]>

[ Upstream commit d3589381987ec879b03f8ce3039df57e87f05901 ]

NVME_REQ_CANCELLED is translated into -EINTR in nvme_submit_sync_cmd(), so we should be setting this flags during nvme_cancel_request() to ensure that the callers to nvme_submit_sync_cmd() will get the correct error code when the controller is reset.

Reviewed-by Keith Busch <[email protected]>

Reviewed-by Chao Leng <[email protected]>

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/host/core.c | 1 +
 1 file changed, 1 insertion(+)

drivers/nvme/host/core.c +1 -0

index fbe2918ade78..30e834d84f36 100644
@@ -346,6 +346,7 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
 		return true;
 
 	nvme_req(req)->status = NVME_SC_HOST_ABORTED_CMD;
+	nvme_req(req)->flags |= NVME_REQ_CANCELLED;
 	blk_mq_complete_request(req);
 	return true;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #47 lore raw

PATCH 47/221 nvme-fc: set NVME_REQ_CANCELLED in nvme_fc_terminate_exchange()

From: Hannes Reinecke <[email protected]>

[ Upstream commit 3c7aafbc8d3d4d90430dfa126847a796c3e4ecfc ]

nvme_fc_terminate_exchange() is being called when exchanges are being deleted, and as such we should be setting the NVME_REQ_CANCELLED flag to have identical behaviour on all transports.

Reviewed-by Keith Busch <[email protected]>

Reviewed-by James Smart <[email protected]>

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/host/fc.c | 1 +
 1 file changed, 1 insertion(+)

drivers/nvme/host/fc.c +1 -0

index fab068c8ba02..d221a98a677b 100644
@@ -2443,6 +2443,7 @@ nvme_fc_terminate_exchange(struct request *req, void *data, bool reserved)
 	struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl);
 	struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(req);
 
+	op->nreq.flags |= NVME_REQ_CANCELLED;
 	__nvme_fc_abort_op(ctrl, op);
 	return true;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #48 lore raw

PATCH 48/221 nvme-fc: return NVME_SC_HOST_ABORTED_CMD when a command has been aborted

From: Hannes Reinecke <[email protected]>

[ Upstream commit ae3afe6308b43bbf49953101d4ba2c1c481133a8 ]

When a command has been aborted we should return NVME_SC_HOST_ABORTED_CMD to be consistent with the other transports.

Reviewed-by James Smart <[email protected]>

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/host/fc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/nvme/host/fc.c +1 -1

index d221a98a677b..41257daf7464 100644
@@ -1956,7 +1956,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 				sizeof(op->rsp_iu), DMA_FROM_DEVICE);
 
 	if (opstate == FCPOP_STATE_ABORTED)
-		status = cpu_to_le16(NVME_SC_HOST_PATH_ERROR << 1);
+		status = cpu_to_le16(NVME_SC_HOST_ABORTED_CMD << 1);
 	else if (freq->status) {
 		status = cpu_to_le16(NVME_SC_HOST_PATH_ERROR << 1);
 		dev_info(ctrl->ctrl.device,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #49 lore raw

PATCH 49/221 nvme-core: check ctrl css before setting up zns

From: Chaitanya Kulkarni <[email protected]>

[ Upstream commit 0ec84df4953bd42c6583a555773f1d4996a061eb ]

Ensure multiple Command Sets are supported before starting to setup a ZNS namespace.

Signed-off-by Chaitanya Kulkarni <[email protected]>

[hch: move the check around a bit]

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/host/core.c | 6 ++++++
 1 file changed, 6 insertions(+)

drivers/nvme/host/core.c +6 -0

index 30e834d84f36..140f19cbe73a 100644
@@ -4019,6 +4019,12 @@ static void nvme_validate_or_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 				nsid);
 			break;
 		}
+		if (!nvme_multi_css(ctrl)) {
+			dev_warn(ctrl->device,
+				"command set not reported for nsid: %d\n",
+				ns->head->ns_id);
+			break;
+		}
 		nvme_alloc_ns(ctrl, nsid, &ids);
 		break;
 	default:

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #50 lore raw

PATCH 50/221 nvme-rdma: Fix a use after free in nvmet_rdma_write_data_done

From: Lv Yunlong <[email protected]>

[ Upstream commit abec6561fc4e0fbb19591a0b35676d8c783b5493 ]

In nvmet_rdma_write_data_done, rsp is recoverd by wc->wr_cqe and freed by nvmet_rdma_release_rsp(). But after that, pr_info() used the freed chunk's member object and could leak the freed chunk address with wc->wr_cqe by computing the offset.

Signed-off-by Lv Yunlong <[email protected]>

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/target/rdma.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

drivers/nvme/target/rdma.c +2 -3

index 06b6b742bb21..6c1f3ab7649c 100644
@@ -802,9 +802,8 @@ static void nvmet_rdma_write_data_done(struct ib_cq *cq, struct ib_wc *wc)
 		nvmet_req_uninit(&rsp->req);
 		nvmet_rdma_release_rsp(rsp);
 		if (wc->status != IB_WC_WR_FLUSH_ERR) {
-			pr_info("RDMA WRITE for CQE 0x%p failed with status %s (%d).\n",
-				wc->wr_cqe, ib_wc_status_msg(wc->status),
-				wc->status);
+			pr_info("RDMA WRITE for CQE failed with status %s (%d).\n",
+				ib_wc_status_msg(wc->status), wc->status);
 			nvmet_rdma_error_comp(queue);
 		}
 		return;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #51 lore raw

PATCH 51/221 nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a

From: Dmitry Monakhov <[email protected]>

[ Upstream commit abbb5f5929ec6c52574c430c5475c158a65c2a8c ]

This adds a quirk for Samsung PM1725a drive which fixes timeouts and I/O errors due to the fact that the controller does not properly handle the Write Zeroes command, dmesg log:

nvme nvme0: I/O 528 QID 10 timeout, aborting
nvme nvme0: I/O 529 QID 10 timeout, aborting
nvme nvme0: I/O 530 QID 10 timeout, aborting
nvme nvme0: I/O 531 QID 10 timeout, aborting
nvme nvme0: I/O 532 QID 10 timeout, aborting
nvme nvme0: I/O 533 QID 10 timeout, aborting
nvme nvme0: I/O 534 QID 10 timeout, aborting
nvme nvme0: I/O 535 QID 10 timeout, aborting
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: I/O 528 QID 10 timeout, reset controller
nvme nvme0: controller is down; will reset: CSTS=0x3, PCI_STATUS=0x10
nvme nvme0: Device not ready; aborting reset, CSTS=0x3
nvme nvme0: Device not ready; aborting reset, CSTS=0x3
nvme nvme0: Removing after probe failure status: -19
nvme0n1: detected capacity change from 6251233968 to 0
blk_update_request: I/O error, dev nvme0n1, sector 32776 op 0x1:(WRITE) flags 0x3000 phys_seg 6 prio class 0
blk_update_request: I/O error, dev nvme0n1, sector 113319936 op 0x9:(WRITE_ZEROES) flags 0x800 phys_seg 0 prio class 0 Buffer I/O error on dev nvme0n1p2, logical block 1, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113319680 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0 Buffer I/O error on dev nvme0n1p2, logical block 2, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113319424 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0 Buffer I/O error on dev nvme0n1p2, logical block 3, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113319168 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0 Buffer I/O error on dev nvme0n1p2, logical block 4, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113318912 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0 Buffer I/O error on dev nvme0n1p2, logical block 5, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113318656 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0 Buffer I/O error on dev nvme0n1p2, logical block 6, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113318400 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
blk_update_request: I/O error, dev nvme0n1, sector 113318144 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
blk_update_request: I/O error, dev nvme0n1, sector 113317888 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0

Signed-off-by Dmitry Monakhov <[email protected]>

Signed-off-by Christoph Hellwig <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/nvme/host/pci.c | 1 +
 1 file changed, 1 insertion(+)

drivers/nvme/host/pci.c +1 -0

index 99c59f93a064..4dca58f4afdf 100644
@@ -3247,6 +3247,7 @@ static const struct pci_device_id nvme_id_table[] = {
 		.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
 	{ PCI_DEVICE(0x144d, 0xa822),   /* Samsung PM1725a */
 		.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY |
+				NVME_QUIRK_DISABLE_WRITE_ZEROES|
 				NVME_QUIRK_IGNORE_DEV_SUBNQN, },
 	{ PCI_DEVICE(0x1987, 0x5016),	/* Phison E16 */
 		.driver_data = NVME_QUIRK_IGNORE_DEV_SUBNQN, },

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #52 lore raw

PATCH 52/221 nfs: we dont support removing system.nfs4_acl

From: J. Bruce Fields <[email protected]>

[ Upstream commit 4f8be1f53bf615102d103c0509ffa9596f65b718 ]

The NFSv4 protocol doesn't have any notion of reomoving an attribute, so removexattr(path,"system.nfs4_acl") doesn't make sense.

There's no documented return value. Arguably it could be EOPNOTSUPP but I'm a little worried an application might take that to mean that we don't support ACLs or xattrs. How about EINVAL?

Signed-off-by J. Bruce Fields <[email protected]>

Signed-off-by Anna Schumaker <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 fs/nfs/nfs4proc.c | 3 +++
 1 file changed, 3 insertions(+)

fs/nfs/nfs4proc.c +3 -0

index ba2dfba4854b..15ac6b6893e7 100644
@@ -5891,6 +5891,9 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl
 	unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE);
 	int ret, i;
 
+	/* You can't remove system.nfs4_acl: */
+	if (buflen == 0)
+		return -EINVAL;
 	if (!nfs4_server_supports_acls(server))
 		return -EOPNOTSUPP;
 	if (npages > ARRAY_SIZE(pages))

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #53 lore raw

PATCH 53/221 block: Suppress uevent for hidden device when removed

From: Daniel Wagner <[email protected]>

[ Upstream commit 9ec491447b90ad6a4056a9656b13f0b3a1e83043 ]

register_disk() suppress uevents for devices with the GENHD_FL_HIDDEN but enables uevents at the end again in order to announce disk after possible partitions are created.

When the device is removed the uevents are still on and user land sees 'remove' messages for devices which were never 'add'ed to the system.

KERNEL[95481.571887] remove /devices/virtual/nvme-fabrics/ctl/nvme5/nvme0c5n1 (block)

Let's suppress the uevents for GENHD_FL_HIDDEN by not enabling the uevents at all.

Signed-off-by Daniel Wagner <[email protected]>

Reviewed-by Christoph Hellwig <[email protected]>

Reviewed-by Martin Wilck <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Jens Axboe <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 block/genhd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

block/genhd.c +1 -3

index ec6264e2ed67..796baf761202 100644
@@ -732,10 +732,8 @@ static void register_disk(struct device *parent, struct gendisk *disk,
 	disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
 	disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
 
-	if (disk->flags & GENHD_FL_HIDDEN) {
-		dev_set_uevent_suppress(ddev, 0);
+	if (disk->flags & GENHD_FL_HIDDEN)
 		return;
-	}
 
 	disk_scan_partitions(disk);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #54 lore raw

PATCH 54/221 mm/fork: clear PASID for new mm

[1] https://lore.kernel.org/linux-iommu/[email protected]/

From: Fenghua Yu <[email protected]>

[ Upstream commit 82e69a121be4b1597ce758534816a8ee04c8b761 ]

When a new mm is created, its PASID should be cleared, i.e. the PASID is initialized to its init state 0 on both ARM and X86.

This patch was part of the series introducing mm->pasid, but got lost along the way [1]. It still makes sense to have it, because each address space has a different PASID. And the IOMMU code in iommu_sva_alloc_pasid() expects the pasid field of a new mm struct to be cleared.

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Fenghua Yu <[email protected]>

Signed-off-by Jean-Philippe Brucker <[email protected]>

Reviewed-by Tony Luck <[email protected]>

Cc Jacob Pan <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 include/linux/mm_types.h | 1 +
 kernel/fork.c            | 8 ++++++++
 2 files changed, 9 insertions(+)

include/linux/mm_types.h +1 -0

index 915f4f100383..3433ecc9c1f7 100644
@@ -23,6 +23,7 @@
 #endif
 #define AT_VECTOR_SIZE (2*(AT_VECTOR_SIZE_ARCH + AT_VECTOR_SIZE_BASE + 1))
 
+#define INIT_PASID	0
 
 struct address_space;
 struct mem_cgroup;

kernel/fork.c +8 -0

index c675fdbd3dce..7c044d377926 100644
@@ -992,6 +992,13 @@ static void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
 #endif
 }
 
+static void mm_init_pasid(struct mm_struct *mm)
+{
+#ifdef CONFIG_IOMMU_SUPPORT
+	mm->pasid = INIT_PASID;
+#endif
+}
+
 static void mm_init_uprobes_state(struct mm_struct *mm)
 {
 #ifdef CONFIG_UPROBES

@@ -1022,6 +1029,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
 	mm_init_cpumask(mm);
 	mm_init_aio(mm);
 	mm_init_owner(mm, p);
+	mm_init_pasid(mm);
 	RCU_INIT_POINTER(mm->exe_file, NULL);
 	mmu_notifier_subscriptions_init(mm);
 	init_tlb_flush_pending(mm);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #55 lore raw

PATCH 55/221 ia64: fix ia64_syscall_get_set_arguments() for break-based syscalls

From: Sergei Trofimovich <[email protected]>

[ Upstream commit 0ceb1ace4a2778e34a5414e5349712ae4dc41d85 ]

In https://bugs.gentoo.org/769614 Dmitry noticed that ptrace(PTRACE_GET_SYSCALL_INFO) does not work for syscalls called via glibc's syscall() wrapper.

ia64 has two ways to call syscalls from userspace: via break and via eps instructions.

The difference is in stack layout:

1. eps creates simple stack frame: no locals, in{0..7} == out{0..8}
2. break uses userspace stack frame: may be locals (glibc provides one), in{0..7} == out{0..8}.

Both work fine in syscall handling cde itself.

But ptrace(PTRACE_GET_SYSCALL_INFO) uses unwind mechanism to re-extract syscall arguments but it does not account for locals.

The change always skips locals registers. It should not change eps path as kernel's handler already enforces locals=0 and fixes break.

Tested on v5.10 on rx3600 machine (ia64 9040 CPU).

Link https://lkml.kernel.org/r/[email protected] open here

Link https://bugs.gentoo.org/769614

Signed-off-by Sergei Trofimovich <[email protected]>

Reported-by Dmitry V. Levin <[email protected]>

Cc Oleg Nesterov <[email protected]>

Cc John Paul Adrian Glaubitz <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 arch/ia64/kernel/ptrace.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

arch/ia64/kernel/ptrace.c +18 -6

index 75c070aed81e..dad3a605cb7e 100644
@@ -2010,27 +2010,39 @@ static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data)
 {
 	struct syscall_get_set_args *args = data;
 	struct pt_regs *pt = args->regs;
-	unsigned long *krbs, cfm, ndirty;
+	unsigned long *krbs, cfm, ndirty, nlocals, nouts;
 	int i, count;
 
 	if (unw_unwind_to_user(info) < 0)
 		return;
 
+	/*
+	 * We get here via a few paths:
+	 * - break instruction: cfm is shared with caller.
+	 *   syscall args are in out= regs, locals are non-empty.
+	 * - epsinstruction: cfm is set by br.call
+	 *   locals don't exist.
+	 *
+	 * For both cases argguments are reachable in cfm.sof - cfm.sol.
+	 * CFM: [ ... | sor: 17..14 | sol : 13..7 | sof : 6..0 ]
+	 */
 	cfm = pt->cr_ifs;
+	nlocals = (cfm >> 7) & 0x7f; /* aka sol */
+	nouts = (cfm & 0x7f) - nlocals; /* aka sof - sol */
 	krbs = (unsigned long *)info->task + IA64_RBS_OFFSET/8;
 	ndirty = ia64_rse_num_regs(krbs, krbs + (pt->loadrs >> 19));
 
 	count = 0;
 	if (in_syscall(pt))
-		count = min_t(int, args->n, cfm & 0x7f);
+		count = min_t(int, args->n, nouts);
 
+	/* Iterate over outs. */
 	for (i = 0; i < count; i++) {
+		int j = ndirty + nlocals + i + args->i;
 		if (args->rw)
-			*ia64_rse_skip_regs(krbs, ndirty + i + args->i) =
-				args->args[i];
+			*ia64_rse_skip_regs(krbs, j) = args->args[i];
 		else
-			args->args[i] = *ia64_rse_skip_regs(krbs,
-				ndirty + i + args->i);
+			args->args[i] = *ia64_rse_skip_regs(krbs, j);
 	}
 
 	if (!args->rw) {

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #56 lore raw

PATCH 56/221 ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign

From: Sergei Trofimovich <[email protected]>

[ Upstream commit 61bf318eac2c13356f7bd1c6a05421ef504ccc8a ]

In https://bugs.gentoo.org/769614 Dmitry noticed that ptrace(PTRACE_GET_SYSCALL_INFO) does not return error sign properly.

The bug is in mismatch between get/set errors:

static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)

{
        return regs->r10 == -1 ? regs->r8:0;
}

static inline long syscall_get_return_value(struct task_struct *task,
struct pt_regs *regs)

{
        return regs->r8;
}

static inline void syscall_set_return_value(struct task_struct *task,
struct pt_regs *regs, int error, long val)

{
        if (error) {
                /* error < 0, but ia64 uses > 0 return value */
                regs->r8 = -error;
                regs->r10 = -1;
        } else {
                regs->r8 = val;
                regs->r10 = 0;
        }
}

Tested on v5.10 on rx3600 machine (ia64 9040 CPU).

Link https://lkml.kernel.org/r/[email protected] open here

Link https://bugs.gentoo.org/769614

Signed-off-by Sergei Trofimovich <[email protected]>

Reported-by Dmitry V. Levin <[email protected]>

Reviewed-by Dmitry V. Levin <[email protected]>

Cc John Paul Adrian Glaubitz <[email protected]>

Cc Oleg Nesterov <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 arch/ia64/include/asm/syscall.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

arch/ia64/include/asm/syscall.h +1 -1

index 6c6f16e409a8..0d23c0049301 100644
@@ -32,7 +32,7 @@ static inline void syscall_rollback(struct task_struct *task,
 static inline long syscall_get_error(struct task_struct *task,
 				     struct pt_regs *regs)
 {
-	return regs->r10 == -1 ? regs->r8:0;
+	return regs->r10 == -1 ? -regs->r8:0;
 }
 
 static inline long syscall_get_return_value(struct task_struct *task,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #57 lore raw

PATCH 57/221 static_call: Pull some static_call declarations to the type headers

From: Peter Zijlstra <[email protected]>

[ Upstream commit 880cfed3a012d7863f42251791cea7fe78c39390 ]

Some static call declarations are going to be needed on low level header files. Move the necessary material to the dedicated static call types header to avoid inclusion dependency hell.

Signed-off-by Peter Zijlstra (Intel) <[email protected]>

Signed-off-by Frederic Weisbecker <[email protected]>

Signed-off-by Peter Zijlstra (Intel) <[email protected]>

Signed-off-by Ingo Molnar <[email protected]>

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 include/linux/static_call.h             | 21 -------------------
 include/linux/static_call_types.h       | 27 +++++++++++++++++++++++++
 tools/include/linux/static_call_types.h | 27 +++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 21 deletions(-)

include/linux/static_call.h +0 ~~-21~~

index 695da4c9b338..a2c064585c03 100644
@@ -107,26 +107,10 @@ extern void arch_static_call_transform(void *site, void *tramp, void *func, bool
 
 #define STATIC_CALL_TRAMP_ADDR(name) &STATIC_CALL_TRAMP(name)
 
-/*
- * __ADDRESSABLE() is used to ensure the key symbol doesn't get stripped from
- * the symbol table so that objtool can reference it when it generates the
- * .static_call_sites section.
- */
-#define __static_call(name)						\
-({									\
-	__ADDRESSABLE(STATIC_CALL_KEY(name));				\
-	&STATIC_CALL_TRAMP(name);					\
-})
-
 #else
 #define STATIC_CALL_TRAMP_ADDR(name) NULL
 #endif
 
-
-#define DECLARE_STATIC_CALL(name, func)					\
-	extern struct static_call_key STATIC_CALL_KEY(name);		\
-	extern typeof(func) STATIC_CALL_TRAMP(name);
-
 #define static_call_update(name, func)					\
 ({									\
 	BUILD_BUG_ON(!__same_type(*(func), STATIC_CALL_TRAMP(name)));	\

@@ -174,7 +158,6 @@ extern int static_call_text_reserved(void *start, void *end);
 	};								\
 	ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name)
 
-#define static_call(name)	__static_call(name)
 #define static_call_cond(name)	(void)__static_call(name)
 
 #define EXPORT_STATIC_CALL(name)					\

@@ -207,7 +190,6 @@ struct static_call_key {
 	};								\
 	ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name)
 
-#define static_call(name)	__static_call(name)
 #define static_call_cond(name)	(void)__static_call(name)
 
 static inline

@@ -252,9 +234,6 @@ struct static_call_key {
 		.func = NULL,						\
 	}
 
-#define static_call(name)						\
-	((typeof(STATIC_CALL_TRAMP(name))*)(STATIC_CALL_KEY(name).func))
-
 static inline void __static_call_nop(void) { }
 
 /*

include/linux/static_call_types.h +27 -0

index 89135bb35bf7..08f78b1b88b4 100644
@@ -4,6 +4,7 @@
 
 #include <linux/types.h>
 #include <linux/stringify.h>
+#include <linux/compiler.h>
 
 #define STATIC_CALL_KEY_PREFIX		__SCK__
 #define STATIC_CALL_KEY_PREFIX_STR	__stringify(STATIC_CALL_KEY_PREFIX)

@@ -32,4 +33,30 @@ struct static_call_site {
 	s32 key;
 };
 
+#define DECLARE_STATIC_CALL(name, func)					\
+	extern struct static_call_key STATIC_CALL_KEY(name);		\
+	extern typeof(func) STATIC_CALL_TRAMP(name);
+
+#ifdef CONFIG_HAVE_STATIC_CALL
+
+/*
+ * __ADDRESSABLE() is used to ensure the key symbol doesn't get stripped from
+ * the symbol table so that objtool can reference it when it generates the
+ * .static_call_sites section.
+ */
+#define __static_call(name)						\
+({									\
+	__ADDRESSABLE(STATIC_CALL_KEY(name));				\
+	&STATIC_CALL_TRAMP(name);					\
+})
+
+#define static_call(name)	__static_call(name)
+
+#else
+
+#define static_call(name)						\
+	((typeof(STATIC_CALL_TRAMP(name))*)(STATIC_CALL_KEY(name).func))
+
+#endif /* CONFIG_HAVE_STATIC_CALL */
+
 #endif /* _STATIC_CALL_TYPES_H */

tools/include/linux/static_call_types.h +27 -0

index 89135bb35bf7..08f78b1b88b4 100644
@@ -4,6 +4,7 @@
 
 #include <linux/types.h>
 #include <linux/stringify.h>
+#include <linux/compiler.h>
 
 #define STATIC_CALL_KEY_PREFIX		__SCK__
 #define STATIC_CALL_KEY_PREFIX_STR	__stringify(STATIC_CALL_KEY_PREFIX)

@@ -32,4 +33,30 @@ struct static_call_site {
 	s32 key;
 };
 
+#define DECLARE_STATIC_CALL(name, func)					\
+	extern struct static_call_key STATIC_CALL_KEY(name);		\
+	extern typeof(func) STATIC_CALL_TRAMP(name);
+
+#ifdef CONFIG_HAVE_STATIC_CALL
+
+/*
+ * __ADDRESSABLE() is used to ensure the key symbol doesn't get stripped from
+ * the symbol table so that objtool can reference it when it generates the
+ * .static_call_sites section.
+ */
+#define __static_call(name)						\
+({									\
+	__ADDRESSABLE(STATIC_CALL_KEY(name));				\
+	&STATIC_CALL_TRAMP(name);					\
+})
+
+#define static_call(name)	__static_call(name)
+
+#else
+
+#define static_call(name)						\
+	((typeof(STATIC_CALL_TRAMP(name))*)(STATIC_CALL_KEY(name).func))
+
+#endif /* CONFIG_HAVE_STATIC_CALL */
+
 #endif /* _STATIC_CALL_TYPES_H */

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #58 lore raw

PATCH 58/221 static_call: Allow module use without exposing static_call_key

Link https://lkml.kernel.org/r/20210127231837.ifddpn7rhwdaepiu@treble open here

From: Josh Poimboeuf <[email protected]>

[ Upstream commit 73f44fe19d359635a607e8e8daa0da4001c1cfc2 ]

When exporting static_call_key; with EXPORT_STATIC_CALL*(), the module can use static_call_update() to change the function called. This is not desirable in general.

Not exporting static_call_key however also disallows usage of static_call(), since objtool needs the key to construct the static_call_site.

Solve this by allowing objtool to create the static_call_site using the trampoline address when it builds a module and cannot find the static_call_key symbol. The module loader will then try and map the trampole back to a key before it constructs the normal sites list.

Doing this requires a trampoline -> key associsation, so add another magic section that keeps those.

Originally-by Peter Zijlstra (Intel) <[email protected]>

Signed-off-by Josh Poimboeuf <[email protected]>

Signed-off-by Peter Zijlstra (Intel) <[email protected]>

Signed-off-by Ingo Molnar <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 arch/x86/include/asm/static_call.h      |  7 ++++
 include/asm-generic/vmlinux.lds.h       |  5 ++-
 include/linux/static_call.h             | 22 +++++++++-
 include/linux/static_call_types.h       | 27 +++++++++++-
 kernel/static_call.c                    | 55 ++++++++++++++++++++++++-
 tools/include/linux/static_call_types.h | 27 +++++++++++-
 tools/objtool/check.c                   | 17 +++++++-
 7 files changed, 149 insertions(+), 11 deletions(-)

arch/x86/include/asm/static_call.h +7 -0

index c37f11999d0c..cbb67b6030f9 100644
@@ -37,4 +37,11 @@
 #define ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name)			\
 	__ARCH_DEFINE_STATIC_CALL_TRAMP(name, "ret; nop; nop; nop; nop")
 
+
+#define ARCH_ADD_TRAMP_KEY(name)					\
+	asm(".pushsection .static_call_tramp_key, \"a\"		\n"	\
+	    ".long " STATIC_CALL_TRAMP_STR(name) " - .		\n"	\
+	    ".long " STATIC_CALL_KEY_STR(name) " - .		\n"	\
+	    ".popsection					\n")
+
 #endif /* _ASM_STATIC_CALL_H */

include/asm-generic/vmlinux.lds.h +4 -1

index 34d8287cd774..d7efbc5490e8 100644
@@ -393,7 +393,10 @@
 	. = ALIGN(8);							\
 	__start_static_call_sites = .;					\
 	KEEP(*(.static_call_sites))					\
-	__stop_static_call_sites = .;
+	__stop_static_call_sites = .;					\
+	__start_static_call_tramp_key = .;				\
+	KEEP(*(.static_call_tramp_key))					\
+	__stop_static_call_tramp_key = .;
 
 /*
  * Allow architectures to handle ro_after_init data on their

include/linux/static_call.h +20 -2

index a2c064585c03..04e6042d252d 100644
@@ -138,6 +138,12 @@ struct static_call_key {
 	};
 };
 
+/* For finding the key associated with a trampoline */
+struct static_call_tramp_key {
+	s32 tramp;
+	s32 key;
+};
+
 extern void __static_call_update(struct static_call_key *key, void *tramp, void *func);
 extern int static_call_mod_init(struct module *mod);
 extern int static_call_text_reserved(void *start, void *end);

@@ -163,11 +169,18 @@ extern int static_call_text_reserved(void *start, void *end);
 #define EXPORT_STATIC_CALL(name)					\
 	EXPORT_SYMBOL(STATIC_CALL_KEY(name));				\
 	EXPORT_SYMBOL(STATIC_CALL_TRAMP(name))
-
 #define EXPORT_STATIC_CALL_GPL(name)					\
 	EXPORT_SYMBOL_GPL(STATIC_CALL_KEY(name));			\
 	EXPORT_SYMBOL_GPL(STATIC_CALL_TRAMP(name))
 
+/* Leave the key unexported, so modules can't change static call targets: */
+#define EXPORT_STATIC_CALL_TRAMP(name)					\
+	EXPORT_SYMBOL(STATIC_CALL_TRAMP(name));				\
+	ARCH_ADD_TRAMP_KEY(name)
+#define EXPORT_STATIC_CALL_TRAMP_GPL(name)				\
+	EXPORT_SYMBOL_GPL(STATIC_CALL_TRAMP(name));			\
+	ARCH_ADD_TRAMP_KEY(name)
+
 #elif defined(CONFIG_HAVE_STATIC_CALL)
 
 static inline int static_call_init(void) { return 0; }

@@ -209,11 +222,16 @@ static inline int static_call_text_reserved(void *start, void *end)
 #define EXPORT_STATIC_CALL(name)					\
 	EXPORT_SYMBOL(STATIC_CALL_KEY(name));				\
 	EXPORT_SYMBOL(STATIC_CALL_TRAMP(name))
-
 #define EXPORT_STATIC_CALL_GPL(name)					\
 	EXPORT_SYMBOL_GPL(STATIC_CALL_KEY(name));			\
 	EXPORT_SYMBOL_GPL(STATIC_CALL_TRAMP(name))
 
+/* Leave the key unexported, so modules can't change static call targets: */
+#define EXPORT_STATIC_CALL_TRAMP(name)					\
+	EXPORT_SYMBOL(STATIC_CALL_TRAMP(name))
+#define EXPORT_STATIC_CALL_TRAMP_GPL(name)				\
+	EXPORT_SYMBOL_GPL(STATIC_CALL_TRAMP(name))
+
 #else /* Generic implementation */
 
 static inline int static_call_init(void) { return 0; }

include/linux/static_call_types.h +25 -2

index 08f78b1b88b4..ae5662d368b9 100644
@@ -10,6 +10,7 @@
 #define STATIC_CALL_KEY_PREFIX_STR	__stringify(STATIC_CALL_KEY_PREFIX)
 #define STATIC_CALL_KEY_PREFIX_LEN	(sizeof(STATIC_CALL_KEY_PREFIX_STR) - 1)
 #define STATIC_CALL_KEY(name)		__PASTE(STATIC_CALL_KEY_PREFIX, name)
+#define STATIC_CALL_KEY_STR(name)	__stringify(STATIC_CALL_KEY(name))
 
 #define STATIC_CALL_TRAMP_PREFIX	__SCT__
 #define STATIC_CALL_TRAMP_PREFIX_STR	__stringify(STATIC_CALL_TRAMP_PREFIX)

@@ -39,17 +40,39 @@ struct static_call_site {
 
 #ifdef CONFIG_HAVE_STATIC_CALL
 
+#define __raw_static_call(name)	(&STATIC_CALL_TRAMP(name))
+
+#ifdef CONFIG_HAVE_STATIC_CALL_INLINE
+
 /*
  * __ADDRESSABLE() is used to ensure the key symbol doesn't get stripped from
  * the symbol table so that objtool can reference it when it generates the
  * .static_call_sites section.
  */
+#define __STATIC_CALL_ADDRESSABLE(name) \
+	__ADDRESSABLE(STATIC_CALL_KEY(name))
+
 #define __static_call(name)						\
 ({									\
-	__ADDRESSABLE(STATIC_CALL_KEY(name));				\
-	&STATIC_CALL_TRAMP(name);					\
+	__STATIC_CALL_ADDRESSABLE(name);				\
+	__raw_static_call(name);					\
 })
 
+#else /* !CONFIG_HAVE_STATIC_CALL_INLINE */
+
+#define __STATIC_CALL_ADDRESSABLE(name)
+#define __static_call(name)	__raw_static_call(name)
+
+#endif /* CONFIG_HAVE_STATIC_CALL_INLINE */
+
+#ifdef MODULE
+#define __STATIC_CALL_MOD_ADDRESSABLE(name)
+#define static_call_mod(name)	__raw_static_call(name)
+#else
+#define __STATIC_CALL_MOD_ADDRESSABLE(name) __STATIC_CALL_ADDRESSABLE(name)
+#define static_call_mod(name)	__static_call(name)
+#endif
+
 #define static_call(name)	__static_call(name)
 
 #else

kernel/static_call.c +53 -2

69 lines not on this page · raw message

tools/include/linux/static_call_types.h +25 -2

index 08f78b1b88b4..ae5662d368b9 100644
@@ -10,6 +10,7 @@
 #define STATIC_CALL_KEY_PREFIX_STR	__stringify(STATIC_CALL_KEY_PREFIX)
 #define STATIC_CALL_KEY_PREFIX_LEN	(sizeof(STATIC_CALL_KEY_PREFIX_STR) - 1)
 #define STATIC_CALL_KEY(name)		__PASTE(STATIC_CALL_KEY_PREFIX, name)
+#define STATIC_CALL_KEY_STR(name)	__stringify(STATIC_CALL_KEY(name))
 
 #define STATIC_CALL_TRAMP_PREFIX	__SCT__
 #define STATIC_CALL_TRAMP_PREFIX_STR	__stringify(STATIC_CALL_TRAMP_PREFIX)

@@ -39,17 +40,39 @@ struct static_call_site {
 
 #ifdef CONFIG_HAVE_STATIC_CALL
 
+#define __raw_static_call(name)	(&STATIC_CALL_TRAMP(name))
+
+#ifdef CONFIG_HAVE_STATIC_CALL_INLINE
+
 /*
  * __ADDRESSABLE() is used to ensure the key symbol doesn't get stripped from
  * the symbol table so that objtool can reference it when it generates the
  * .static_call_sites section.
  */
+#define __STATIC_CALL_ADDRESSABLE(name) \
+	__ADDRESSABLE(STATIC_CALL_KEY(name))
+
 #define __static_call(name)						\
 ({									\
-	__ADDRESSABLE(STATIC_CALL_KEY(name));				\
-	&STATIC_CALL_TRAMP(name);					\
+	__STATIC_CALL_ADDRESSABLE(name);				\
+	__raw_static_call(name);					\
 })
 
+#else /* !CONFIG_HAVE_STATIC_CALL_INLINE */
+
+#define __STATIC_CALL_ADDRESSABLE(name)
+#define __static_call(name)	__raw_static_call(name)
+
+#endif /* CONFIG_HAVE_STATIC_CALL_INLINE */
+
+#ifdef MODULE
+#define __STATIC_CALL_MOD_ADDRESSABLE(name)
+#define static_call_mod(name)	__raw_static_call(name)
+#else
+#define __STATIC_CALL_MOD_ADDRESSABLE(name) __STATIC_CALL_ADDRESSABLE(name)
+#define static_call_mod(name)	__static_call(name)
+#endif
+
 #define static_call(name)	__static_call(name)
 
 #else

tools/objtool/check.c +15 -2

index dc24aac08edd..5c83f73ad668 100644
@@ -502,8 +502,21 @@ static int create_static_call_sections(struct objtool_file *file)
 
 		key_sym = find_symbol_by_name(file->elf, tmp);
 		if (!key_sym) {
-			WARN("static_call: can't find static_call_key symbol: %s", tmp);
-			return -1;
+			if (!module) {
+				WARN("static_call: can't find static_call_key symbol: %s", tmp);
+				return -1;
+			}
+
+			/*
+			 * For modules(), the key might not be exported, which
+			 * means the module can make static calls but isn't
+			 * allowed to change them.
+			 *
+			 * In that case we temporarily set the key to be the
+			 * trampoline address.  This is fixed up in
+			 * static_call_add_module().
+			 */
+			key_sym = insn->call_dest;
 		}
 		free(key_name);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:19 UTC #59 lore raw

PATCH 59/221 static_call: Fix the module key fixup

From: Peter Zijlstra <[email protected]>

[ Upstream commit 50bf8080a94d171e843fc013abec19d8ab9f50ae ]

Provided the target address of a R_X86_64_PC32 relocation is aligned, the low two bits should be invariant between the relative and absolute value.

Turns out the address is not aligned and things go sideways, ensure we transfer the bits in the absolute form when fixing up the key address.

Fixes 73f44fe19d35 ("static_call: Allow module use without exposing static_call_key")

Reported-by Steven Rostedt <[email protected]>

Signed-off-by Peter Zijlstra (Intel) <[email protected]>

Signed-off-by Ingo Molnar <[email protected]>

Tested-by Steven Rostedt (VMware) <[email protected]>

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 kernel/static_call.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

kernel/static_call.c +4 -3

index db64c2331a32..5d53c354fbe7 100644
@@ -358,7 +358,8 @@ static int static_call_add_module(struct module *mod)
 	struct static_call_site *site;
 
 	for (site = start; site != stop; site++) {
-		unsigned long addr = (unsigned long)static_call_key(site);
+		unsigned long s_key = (long)site->key + (long)&site->key;
+		unsigned long addr = s_key & ~STATIC_CALL_SITE_FLAGS;
 		unsigned long key;
 
 		/*

@@ -382,8 +383,8 @@ static int static_call_add_module(struct module *mod)
 			return -EINVAL;
 		}
 
-		site->key = (key - (long)&site->key) |
-			    (site->key & STATIC_CALL_SITE_FLAGS);
+		key |= s_key & STATIC_CALL_SITE_FLAGS;
+		site->key = key - (long)&site->key;
 	}
 
 	return __static_call_init(mod, start, stop);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #60 lore raw

PATCH 60/221 static_call: Fix static_call_set_init()

From: Peter Zijlstra <[email protected]>

[ Upstream commit 68b1eddd421d2b16c6655eceb48918a1e896bbbc ]

It turns out that static_call_set_init() does not preserve the other flags; IOW. it clears TAIL if it was set.

Fixes 9183c3f9ed710 ("static_call: Add inline static call infrastructure")

Reported-by Sumit Garg <[email protected]>

Signed-off-by Peter Zijlstra (Intel) <[email protected]>

Acked-by Jarkko Sakkinen <[email protected]>

Tested-by Sumit Garg <[email protected]>

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 kernel/static_call.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

kernel/static_call.c +10 -7

index 5d53c354fbe7..49efbdc5b480 100644
@@ -35,27 +35,30 @@ static inline void *static_call_addr(struct static_call_site *site)
 	return (void *)((long)site->addr + (long)&site->addr);
 }
 
+static inline unsigned long __static_call_key(const struct static_call_site *site)
+{
+	return (long)site->key + (long)&site->key;
+}
 
 static inline struct static_call_key *static_call_key(const struct static_call_site *site)
 {
-	return (struct static_call_key *)
-		(((long)site->key + (long)&site->key) & ~STATIC_CALL_SITE_FLAGS);
+	return (void *)(__static_call_key(site) & ~STATIC_CALL_SITE_FLAGS);
 }
 
 /* These assume the key is word-aligned. */
 static inline bool static_call_is_init(struct static_call_site *site)
 {
-	return ((long)site->key + (long)&site->key) & STATIC_CALL_SITE_INIT;
+	return __static_call_key(site) & STATIC_CALL_SITE_INIT;
 }
 
 static inline bool static_call_is_tail(struct static_call_site *site)
 {
-	return ((long)site->key + (long)&site->key) & STATIC_CALL_SITE_TAIL;
+	return __static_call_key(site) & STATIC_CALL_SITE_TAIL;
 }
 
 static inline void static_call_set_init(struct static_call_site *site)
 {
-	site->key = ((long)static_call_key(site) | STATIC_CALL_SITE_INIT) -
+	site->key = (__static_call_key(site) | STATIC_CALL_SITE_INIT) -
 		    (long)&site->key;
 }

@@ -199,7 +202,7 @@ void __static_call_update(struct static_call_key *key, void *tramp, void *func)
 			}
 
 			arch_static_call_transform(site_addr, NULL, func,
-				static_call_is_tail(site));
+						   static_call_is_tail(site));
 		}
 	}

@@ -358,7 +361,7 @@ static int static_call_add_module(struct module *mod)
 	struct static_call_site *site;
 
 	for (site = start; site != stop; site++) {
-		unsigned long s_key = (long)site->key + (long)&site->key;
+		unsigned long s_key = __static_call_key(site);
 		unsigned long addr = s_key & ~STATIC_CALL_SITE_FLAGS;
 		unsigned long key;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #61 lore raw

PATCH 61/221 KVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish

[*] https://lkml.kernel.org/r/[email protected]

From: Sean Christopherson <[email protected]>

[ Upstream commit b318e8decf6b9ef1bcf4ca06fae6d6a2cb5d5c5c ]

Fix a plethora of issues with MSR filtering by installing the resulting filter as an atomic bundle instead of updating the live filter one range at a time. The KVM_X86_SET_MSR_FILTER ioctl() isn't truly atomic, as the hardware MSR bitmaps won't be updated until the next VM-Enter, but the relevant software struct is atomically updated, which is what KVM really needs.

Similar to the approach used for modifying memslots, make arch.msr_filter a SRCU-protected pointer, do all the work configuring the new filter outside of kvm->lock, and then acquire kvm->lock only when the new filter has been vetted and created. That way vCPU readers either see the old filter or the new filter in their entirety, not some half-baked state.

Yuan Yao pointed out a use-after-free in ksm_msr_allowed() due to a TOCTOU bug, but that's just the tip of the iceberg...

- Nothing is __rcu annotated, making it nigh impossible to audit the code for correctness.
- kvm_add_msr_filter() has an unpaired smp_wmb(). Violation of kernel coding style aside, the lack of a smb_rmb() anywhere casts all code into doubt.
- kvm_clear_msr_filter() has a double free TOCTOU bug, as it grabs count before taking the lock.
- kvm_clear_msr_filter() also has memory leak due to the same TOCTOU bug.

The entire approach of updating the live filter is also flawed. While installing a new filter is inherently racy if vCPUs are running, fixing the above issues also makes it trivial to ensure certain behavior is deterministic, e.g. KVM can provide deterministic behavior for MSRs with identical settings in the old and new filters. An atomic update of the filter also prevents KVM from getting into a half-baked state, e.g. if installing a filter fails, the existing approach would leave the filter in a half-baked state, having already committed whatever bits of the filter were already processed.

Fixes 1a155254ff93 ("KVM: x86: Introduce MSR filtering")

Cc Alexander Graf <[email protected]>

Reported-by Yuan Yao <[email protected]>

Signed-off-by Sean Christopherson <[email protected]>

Message-Id: <[email protected]>

Signed-off-by Paolo Bonzini <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 Documentation/virt/kvm/api.rst  |   6 +-
 arch/x86/include/asm/kvm_host.h |  14 ++--
 arch/x86/kvm/x86.c              | 109 +++++++++++++++++++-------------
 3 files changed, 78 insertions(+), 51 deletions(-)

Documentation/virt/kvm/api.rst +4 -2

index a5d27553d59c..cd8a58556804 100644
@@ -4810,8 +4810,10 @@ If an MSR access is not permitted through the filtering, it generates a
 allows user space to deflect and potentially handle various MSR accesses
 into user space.
 
-If a vCPU is in running state while this ioctl is invoked, the vCPU may
-experience inconsistent filtering behavior on MSR accesses.
+Note, invoking this ioctl with a vCPU is running is inherently racy.  However,
+KVM does guarantee that vCPUs will see either the previous filter or the new
+filter, e.g. MSRs with identical settings in both the old and new filter will
+have deterministic behavior.
 
 
 5. The kvm_run structure

arch/x86/include/asm/kvm_host.h +9 -5

index 7e5f33a0d0e2..02d4c74d30e2 100644
@@ -890,6 +890,12 @@ enum kvm_irqchip_mode {
 	KVM_IRQCHIP_SPLIT,        /* created with KVM_CAP_SPLIT_IRQCHIP */
 };
 
+struct kvm_x86_msr_filter {
+	u8 count;
+	bool default_allow:1;
+	struct msr_bitmap_range ranges[16];
+};
+
 #define APICV_INHIBIT_REASON_DISABLE    0
 #define APICV_INHIBIT_REASON_HYPERV     1
 #define APICV_INHIBIT_REASON_NESTED     2

@@ -985,14 +991,12 @@ struct kvm_arch {
 	bool guest_can_read_msr_platform_info;
 	bool exception_payload_enabled;
 
+	bool bus_lock_detection_enabled;
+
 	/* Deflect RDMSR and WRMSR to user space when they trigger a #GP */
 	u32 user_space_msr_mask;
 
-	struct {
-		u8 count;
-		bool default_allow:1;
-		struct msr_bitmap_range ranges[16];
-	} msr_filter;
+	struct kvm_x86_msr_filter __rcu *msr_filter;
 
 	struct kvm_pmu_event_filter *pmu_event_filter;
 	struct task_struct *nx_lpage_recovery_thread;

arch/x86/kvm/x86.c +65 ~~-44~~

187 lines not on this page · raw message

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #62 lore raw

PATCH 62/221 btrfs: fix sleep while in non-sleep context during qgroup removal

Link https://lore.kernel.org/linux-btrfs/[email protected]/ open here

From: Filipe Manana <[email protected]>

commit 0bb788300990d3eb5582d3301a720f846c78925c upstream.

While removing a qgroup's sysfs entry we end up taking the kernfs_mutex, through kobject_del(), while holding the fs_info->qgroup_lock spinlock, producing the following trace:

  [821.843637] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:281
  [821.843641] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 28214, name: podman
  [821.843644] CPU: 3 PID: 28214 Comm: podman Tainted: G        W         5.11.6 #15
  [821.843646] Hardware name: Dell Inc. PowerEdge R330/084XW4, BIOS 2.11.0 12/08/2020
  [821.843647] Call Trace:
  [821.843650]  dump_stack+0xa1/0xfb
  [821.843656]  ___might_sleep+0x144/0x160
  [821.843659]  mutex_lock+0x17/0x40
  [821.843662]  kernfs_remove_by_name_ns+0x1f/0x80
  [821.843666]  sysfs_remove_group+0x7d/0xe0
  [821.843668]  sysfs_remove_groups+0x28/0x40
  [821.843670]  kobject_del+0x2a/0x80
  [821.843672]  btrfs_sysfs_del_one_qgroup+0x2b/0x40 [btrfs]
  [821.843685]  __del_qgroup_rb+0x12/0x150 [btrfs]
  [821.843696]  btrfs_remove_qgroup+0x288/0x2a0 [btrfs]
  [821.843707]  btrfs_ioctl+0x3129/0x36a0 [btrfs]
  [821.843717]  ? __mod_lruvec_page_state+0x5e/0xb0
  [821.843719]  ? page_add_new_anon_rmap+0xbc/0x150
  [821.843723]  ? kfree+0x1b4/0x300
  [821.843725]  ? mntput_no_expire+0x55/0x330
  [821.843728]  __x64_sys_ioctl+0x5a/0xa0
  [821.843731]  do_syscall_64+0x33/0x70
  [821.843733]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  [821.843736] RIP: 0033:0x4cd3fb
  [821.843741] RSP: 002b:000000c000906b20 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
  [821.843744] RAX: ffffffffffffffda RBX: 000000c000050000 RCX: 00000000004cd3fb
  [821.843745] RDX: 000000c000906b98 RSI: 000000004010942a RDI: 000000000000000f
  [821.843747] RBP: 000000c000907cd0 R08: 000000c000622901 R09: 0000000000000000
  [821.843748] R10: 000000c000d992c0 R11: 0000000000000206 R12: 000000000000012d
  [821.843749] R13: 000000000000012c R14: 0000000000000200 R15: 0000000000000049

Fix this by removing the qgroup sysfs entry while not holding the spinlock, since the spinlock is only meant for protection of the qgroup rbtree.

Reported-by Stuart Shelton <[email protected]>

Fixes 49e5fb46211de0 ("btrfs: qgroup: export qgroups in sysfs")

CC [email protected] # 5.10+

Reviewed-by Qu Wenruo <[email protected]>

Signed-off-by Filipe Manana <[email protected]>

Reviewed-by David Sterba <[email protected]>

Signed-off-by David Sterba <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 fs/btrfs/qgroup.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

fs/btrfs/qgroup.c +10 -2

@@ -226,7 +226,6 @@ static void __del_qgroup_rb(struct btrfs
 {
 	struct btrfs_qgroup_list *list;
 
-	btrfs_sysfs_del_one_qgroup(fs_info, qgroup);
 	list_del(&qgroup->dirty);
 	while (!list_empty(&qgroup->groups)) {
 		list = list_first_entry(&qgroup->groups,

@@ -243,7 +242,6 @@ static void __del_qgroup_rb(struct btrfs
 		list_del(&list->next_member);
 		kfree(list);
 	}
-	kfree(qgroup);
 }
 
 /* must be called with qgroup_lock held */

@@ -569,6 +567,8 @@ void btrfs_free_qgroup_config(struct btr
 		qgroup = rb_entry(n, struct btrfs_qgroup, node);
 		rb_erase(n, &fs_info->qgroup_tree);
 		__del_qgroup_rb(fs_info, qgroup);
+		btrfs_sysfs_del_one_qgroup(fs_info, qgroup);
+		kfree(qgroup);
 	}
 	/*
 	 * We call btrfs_free_qgroup_config() when unmounting

@@ -1580,6 +1580,14 @@ int btrfs_remove_qgroup(struct btrfs_tra
 	spin_lock(&fs_info->qgroup_lock);
 	del_qgroup_rb(fs_info, qgroupid);
 	spin_unlock(&fs_info->qgroup_lock);
+
+	/*
+	 * Remove the qgroup from sysfs now without holding the qgroup_lock
+	 * spinlock, since the sysfs_remove_group() function needs to take
+	 * the mutex kernfs_mutex through kernfs_remove_by_name_ns().
+	 */
+	btrfs_sysfs_del_one_qgroup(fs_info, qgroup);
+	kfree(qgroup);
 out:
 	mutex_unlock(&fs_info->qgroup_ioctl_lock);
 	return ret;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #63 lore raw

PATCH 63/221 selinux: dont log MAC_POLICY_LOAD record on failed policy load

From: Ondrej Mosnacek <[email protected]>

commit 519dad3bcd809dc1523bf80ab0310ddb3bf00ade upstream.

If sel_make_policy_nodes() fails, we should jump to 'out', not 'out1', as the latter would incorrectly log an MAC_POLICY_LOAD audit record, even though the policy hasn't actually been reloaded. The 'out1' jump label now becomes unused and can be removed.

Fixes 02a52c5c8c3b ("selinux: move policy commit after updating selinuxfs")

Signed-off-by Ondrej Mosnacek <[email protected]>

Signed-off-by Paul Moore <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 security/selinux/selinuxfs.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

security/selinux/selinuxfs.c +1 -2

@@ -651,14 +651,13 @@ static ssize_t sel_write_load(struct fil
 	length = sel_make_policy_nodes(fsi, newpolicy);
 	if (length) {
 		selinux_policy_cancel(fsi->state, newpolicy);
-		goto out1;
+		goto out;
 	}
 
 	selinux_policy_commit(fsi->state, newpolicy);
 
 	length = count;
 
-out1:
 	audit_log(audit_context(), GFP_KERNEL, AUDIT_MAC_POLICY_LOAD,
 		"auid=%u ses=%u lsm=selinux res=1",
 		from_kuid(&init_user_ns, audit_get_loginuid(current)),

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #64 lore raw

PATCH 64/221 selinux: fix variable scope issue in live sidtab conversion

From: Ondrej Mosnacek <[email protected]>

commit 6406887a12ee5dcdaffff1a8508d91113d545559 upstream.

Commit 02a52c5c8c3b ("selinux: move policy commit after updating selinuxfs") moved the selinux_policy_commit() call out of security_load_policy() into sel_write_load(), which caused a subtle yet rather serious bug.

The problem is that security_load_policy() passes a reference to the convert_params local variable to sidtab_convert(), which stores it in the sidtab, where it may be accessed until the policy is swapped over and RCU synchronized. Before 02a52c5c8c3b, selinux_policy_commit() was called directly from security_load_policy(), so the convert_params pointer remained valid all the way until the old sidtab was destroyed, but now that's no longer the case and calls to sidtab_context_to_sid() on the old sidtab after security_load_policy() returns may cause invalid memory accesses.

This can be easily triggered using the stress test from commit ee1a84fdfeed ("selinux: overhaul sidtab to fix bug and improve performance"):

```
function rand_cat() {
	echo $(( $RANDOM % 1024 ))
}

function do_work() {
	while true; do
		echo -n "system_u:system_r:kernel_t:s0:c$(rand_cat),c$(rand_cat)" \
			>/sys/fs/selinux/context 2>/dev/null || true
	done
}

do_work >/dev/null &
do_work >/dev/null &
do_work >/dev/null &

while load_policy; do echo -n .; sleep 0.1; done

kill %1
kill %2
kill %3
```

Fix this by allocating the temporary sidtab convert structures dynamically and passing them among the selinux_policy_{load,cancel,commit} functions.

Fixes 02a52c5c8c3b ("selinux: move policy commit after updating selinuxfs")

Tested-by Tyler Hicks <[email protected]>

Reviewed-by Tyler Hicks <[email protected]>

Signed-off-by Ondrej Mosnacek <[email protected]>

[PM: merge fuzz in security.h and services.c]

Signed-off-by Paul Moore <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 security/selinux/include/security.h |   15 ++++++--
 security/selinux/selinuxfs.c        |   10 ++---
 security/selinux/ss/services.c      |   65 ++++++++++++++++++++++--------------
 3 files changed, 56 insertions(+), 34 deletions(-)

security/selinux/include/security.h +11 -4

@@ -219,14 +219,21 @@ static inline bool selinux_policycap_gen
 	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_GENFS_SECLABEL_SYMLINKS]);
 }
 
+struct selinux_policy_convert_data;
+
+struct selinux_load_state {
+	struct selinux_policy *policy;
+	struct selinux_policy_convert_data *convert_data;
+};
+
 int security_mls_enabled(struct selinux_state *state);
 int security_load_policy(struct selinux_state *state,
-			void *data, size_t len,
-			struct selinux_policy **newpolicyp);
+			 void *data, size_t len,
+			 struct selinux_load_state *load_state);
 void selinux_policy_commit(struct selinux_state *state,
-			struct selinux_policy *newpolicy);
+			   struct selinux_load_state *load_state);
 void selinux_policy_cancel(struct selinux_state *state,
-			struct selinux_policy *policy);
+			   struct selinux_load_state *load_state);
 int security_read_policy(struct selinux_state *state,
 			 void **data, size_t *len);

security/selinux/selinuxfs.c +5 -5

@@ -616,7 +616,7 @@ static ssize_t sel_write_load(struct fil
 
 {
 	struct selinux_fs_info *fsi = file_inode(file)->i_sb->s_fs_info;
-	struct selinux_policy *newpolicy;
+	struct selinux_load_state load_state;
 	ssize_t length;
 	void *data = NULL;

@@ -642,19 +642,19 @@ static ssize_t sel_write_load(struct fil
 	if (copy_from_user(data, buf, count) != 0)
 		goto out;
 
-	length = security_load_policy(fsi->state, data, count, &newpolicy);
+	length = security_load_policy(fsi->state, data, count, &load_state);
 	if (length) {
 		pr_warn_ratelimited("SELinux: failed to load policy\n");
 		goto out;
 	}
 
-	length = sel_make_policy_nodes(fsi, newpolicy);
+	length = sel_make_policy_nodes(fsi, load_state.policy);
 	if (length) {
-		selinux_policy_cancel(fsi->state, newpolicy);
+		selinux_policy_cancel(fsi->state, &load_state);
 		goto out;
 	}
 
-	selinux_policy_commit(fsi->state, newpolicy);
+	selinux_policy_commit(fsi->state, &load_state);
 
 	length = count;

security/selinux/ss/services.c +40 ~~-25~~

137 lines not on this page · raw message

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #65 lore raw

PATCH 65/221 netsec: restore phy power state after controller reset

From: Mian Yousaf Kaukab <[email protected]>

commit 804741ac7b9f2fdebe3740cb0579cb8d94d49e60 upstream.

Since commit 8e850f25b581 ("net: socionext: Stop PHY before resetting netsec") netsec_netdev_init() power downs phy before resetting the controller. However, the state is not restored once the reset is complete. As a result it is not possible to bring up network on a platform with Broadcom BCM5482 phy.

Fix the issue by restoring phy power state after controller reset is complete.

Fixes 8e850f25b581 ("net: socionext: Stop PHY before resetting netsec")

Signed-off-by Mian Yousaf Kaukab <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/net/ethernet/socionext/netsec.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

drivers/net/ethernet/socionext/netsec.c +6 -3

@@ -1708,14 +1708,17 @@ static int netsec_netdev_init(struct net
 		goto err1;
 
 	/* set phy power down */
-	data = netsec_phy_read(priv->mii_bus, priv->phy_addr, MII_BMCR) |
-		BMCR_PDOWN;
-	netsec_phy_write(priv->mii_bus, priv->phy_addr, MII_BMCR, data);
+	data = netsec_phy_read(priv->mii_bus, priv->phy_addr, MII_BMCR);
+	netsec_phy_write(priv->mii_bus, priv->phy_addr, MII_BMCR,
+			 data | BMCR_PDOWN);
 
 	ret = netsec_reset_hardware(priv, true);
 	if (ret)
 		goto err2;
 
+	/* Restore phy power state */
+	netsec_phy_write(priv->mii_bus, priv->phy_addr, MII_BMCR, data);
+
 	spin_lock_init(&priv->desc_ring[NETSEC_RING_TX].lock);
 	spin_lock_init(&priv->desc_ring[NETSEC_RING_RX].lock);

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #66 lore raw

PATCH 66/221 platform/x86: intel-vbtn: Stop reporting SW_DOCK events

From: Hans de Goede <[email protected]>

commit 538d2dd0b9920334e6596977a664e9e7bac73703 upstream.

Stop reporting SW_DOCK events because this breaks suspend-on-lid-close.

SW_DOCK should only be reported for docking stations, but all the DSDTs in my DSDT collection which use the intel-vbtn code, always seem to use this for 2-in-1s / convertibles and set SW_DOCK=1 when in laptop-mode (in tandem with setting SW_TABLET_MODE=0).

This causes userspace to think the laptop is docked to a port-replicator and to disable suspend-on-lid-close, which is undesirable.

Map the dock events to KEY_IGNORE to avoid this broken SW_DOCK reporting.

Note this may theoretically cause us to stop reporting SW_DOCK on some device where the 0xCA and 0xCB intel-vbtn events are actually used for reporting docking to a classic docking-station / port-replicator but I'm not aware of any such devices.

Also the most important thing is that we only report SW_DOCK when it reliably reports being docked to a classic docking-station without any false positives, which clearly is not the case here. If there is a chance of reporting false positives then it is better to not report SW_DOCK at all.

Signed-off-by Hans de Goede <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/platform/x86/intel-vbtn.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

drivers/platform/x86/intel-vbtn.c +10 -2

@@ -47,8 +47,16 @@ static const struct key_entry intel_vbtn
 };
 
 static const struct key_entry intel_vbtn_switchmap[] = {
-	{ KE_SW,     0xCA, { .sw = { SW_DOCK, 1 } } },		/* Docked */
-	{ KE_SW,     0xCB, { .sw = { SW_DOCK, 0 } } },		/* Undocked */
+	/*
+	 * SW_DOCK should only be reported for docking stations, but DSDTs using the
+	 * intel-vbtn code, always seem to use this for 2-in-1s / convertibles and set
+	 * SW_DOCK=1 when in laptop-mode (in tandem with setting SW_TABLET_MODE=0).
+	 * This causes userspace to think the laptop is docked to a port-replicator
+	 * and to disable suspend-on-lid-close, which is undesirable.
+	 * Map the dock events to KEY_IGNORE to avoid this broken SW_DOCK reporting.
+	 */
+	{ KE_IGNORE, 0xCA, { .sw = { SW_DOCK, 1 } } },		/* Docked */
+	{ KE_IGNORE, 0xCB, { .sw = { SW_DOCK, 0 } } },		/* Undocked */
 	{ KE_SW,     0xCC, { .sw = { SW_TABLET_MODE, 1 } } },	/* Tablet */
 	{ KE_SW,     0xCD, { .sw = { SW_TABLET_MODE, 0 } } },	/* Laptop */
 };

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #67 lore raw

PATCH 67/221 psample: Fix user API breakage

From: Ido Schimmel <[email protected]>

commit e43accba9b071dcd106b5e7643b1b106a158cbb1 upstream.

Cited commit added a new attribute before the existing group reference count attribute, thereby changing its value and breaking existing applications on new kernels.

Before:

 # psample -l
 libpsample ERROR psample_group_foreach: failed to recv message: Operation not supported

After:

 # psample -l
 Group Num       Refcount        Group Seq
 1               1               0

Fix by restoring the value of the old attribute and remove the misleading comments from the enumerator to avoid future bugs.

Fixes d8bed686ab96 ("net: psample: Add tunnel support")

Signed-off-by Ido Schimmel <[email protected]>

Reported-by Adiel Bidani <[email protected]>

Reviewed-by Jiri Pirko <[email protected]>

Reviewed-by Petr Machata <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 include/uapi/linux/psample.h |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

include/uapi/linux/psample.h +1 -4

@@ -3,7 +3,6 @@
 #define __UAPI_PSAMPLE_H
 
 enum {
-	/* sampled packet metadata */
 	PSAMPLE_ATTR_IIFINDEX,
 	PSAMPLE_ATTR_OIFINDEX,
 	PSAMPLE_ATTR_ORIGSIZE,

@@ -11,10 +10,8 @@ enum {
 	PSAMPLE_ATTR_GROUP_SEQ,
 	PSAMPLE_ATTR_SAMPLE_RATE,
 	PSAMPLE_ATTR_DATA,
-	PSAMPLE_ATTR_TUNNEL,
-
-	/* commands attributes */
 	PSAMPLE_ATTR_GROUP_REFCOUNT,
+	PSAMPLE_ATTR_TUNNEL,
 
 	__PSAMPLE_ATTR_MAX
 };

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #68 lore raw

PATCH 68/221 z3fold: prevent reclaim/free race for headless pages

Link https://lkml.kernel.org/r/c8106dbe6d8390b290cd1d7f873a2942e805349e.1615452048.git.tommyhebb@gmail.com open here

From: Thomas Hebb <[email protected]>

commit 6d679578fe9c762c8fbc3d796a067cbba84a7884 upstream.

Commit ca0246bb97c2 ("z3fold: fix possible reclaim races") introduced the PAGE_CLAIMED flag "to avoid racing on a z3fold 'headless' page release." By atomically testing and setting the bit in each of z3fold_free() and z3fold_reclaim_page(), a double-free was avoided.

However, commit dcf5aedb24f8 ("z3fold: stricter locking and more careful reclaim") appears to have unintentionally broken this behavior by moving the PAGE_CLAIMED check in z3fold_reclaim_page() to after the page lock gets taken, which only happens for non-headless pages. For headless pages, the check is now skipped entirely and races can occur again.

I have observed such a race on my system:

    page:00000000ffbd76b7 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x165316
    flags: 0x2ffff0000000000()
    raw: 02ffff0000000000 ffffea0004535f48 ffff8881d553a170 0000000000000000
    raw: 0000000000000000 0000000000000011 00000000ffffffff 0000000000000000
    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
    ------------[ cut here ]------------
    kernel BUG at include/linux/mm.h:707!
    invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
    CPU: 2 PID: 291928 Comm: kworker/2:0 Tainted: G    B             5.10.7-arch1-1-kasan #1
    Hardware name: Gigabyte Technology Co., Ltd. H97N-WIFI/H97N-WIFI, BIOS F9b 03/03/2016
    Workqueue: zswap-shrink shrink_worker
    RIP: 0010:__free_pages+0x10a/0x130
    Code: c1 e7 06 48 01 ef 45 85 e4 74 d1 44 89 e6 31 d2 41 83 ec 01 e8 e7 b0 ff ff eb da 48 c7 c6 e0 32 91 88 48 89 ef e8 a6 89 f8 ff <0f> 0b 4c 89 e7 e8 fc 79 07 00 e9 33 ff ff ff 48 89 ef e8 ff 79 07
    RSP: 0000:ffff88819a2ffb98 EFLAGS: 00010296
    RAX: 0000000000000000 RBX: ffffea000594c5a8 RCX: 0000000000000000
    RDX: 1ffffd4000b298b7 RSI: 0000000000000000 RDI: ffffea000594c5b8
    RBP: ffffea000594c580 R08: 000000000000003e R09: ffff8881d5520bbb
    R10: ffffed103aaa4177 R11: 0000000000000001 R12: ffffea000594c5b4
    R13: 0000000000000000 R14: ffff888165316000 R15: ffffea000594c588
    FS:  0000000000000000(0000) GS:ffff8881d5500000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 00007f7c8c3654d8 CR3: 0000000103f42004 CR4: 00000000001706e0
    Call Trace:
     z3fold_zpool_shrink+0x9b6/0x1240
     shrink_worker+0x35/0x90
     process_one_work+0x70c/0x1210
     worker_thread+0x539/0x1200
     kthread+0x330/0x400
     ret_from_fork+0x22/0x30
    Modules linked in: rfcomm ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ccm algif_aead des_generic libdes ecb algif_skcipher cmac bnep md4 algif_hash af_alg vfat fat intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iwlmvm hid_logitech_hidpp kvm at24 mac80211 snd_hda_codec_realtek iTCO_wdt snd_hda_codec_generic intel_pmc_bxt snd_hda_codec_hdmi ledtrig_audio iTCO_vendor_support mei_wdt mei_hdcp snd_hda_intel snd_intel_dspcfg libarc4 soundwire_intel irqbypass iwlwifi soundwire_generic_allocation rapl soundwire_cadence intel_cstate snd_hda_codec intel_uncore btusb joydev mousedev snd_usb_audio pcspkr btrtl uvcvideo nouveau btbcm i2c_i801 btintel snd_hda_core videobuf2_vmalloc i2c_smbus snd_usbmidi_lib videobuf2_memops bluetooth snd_hwdep soundwire_bus snd_soc_rt5640 videobuf2_v4l2 cfg80211 snd_soc_rl6231 videobuf2_common snd_rawmidi lpc_ich alx videodev mdio snd_seq_device snd_soc_core mc ecdh_generic mxm_wmi mei_me
     hid_logitech_dj wmi snd_compress e1000e ac97_bus mei ttm rfkill snd_pcm_dmaengine ecc snd_pcm snd_timer snd soundcore mac_hid acpi_pad pkcs8_key_parser it87 hwmon_vid crypto_user fuse ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 dm_crypt cbc encrypted_keys trusted tpm rng_core usbhid dm_mod crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper xhci_pci xhci_pci_renesas i915 video intel_gtt i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec drm agpgart
    ---[ end trace 126d646fc3dc0ad8 ]---

To fix the issue, re-add the earlier test and set in the case where we have a headless page.

Fixes dcf5aedb24f8 ("z3fold: stricter locking and more careful reclaim")

Signed-off-by Thomas Hebb <[email protected]>

Reviewed-by Vitaly Wool <[email protected]>

Cc Jongseok Kim <[email protected]>

Cc Snild Dolkow <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 mm/z3fold.c |   16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

mm/z3fold.c +15 -1

@@ -1350,8 +1350,22 @@ static int z3fold_reclaim_page(struct z3
 			page = list_entry(pos, struct page, lru);
 
 			zhdr = page_address(page);
-			if (test_bit(PAGE_HEADLESS, &page->private))
+			if (test_bit(PAGE_HEADLESS, &page->private)) {
+				/*
+				 * For non-headless pages, we wait to do this
+				 * until we have the page lock to avoid racing
+				 * with __z3fold_alloc(). Headless pages don't
+				 * have a lock (and __z3fold_alloc() will never
+				 * see them), but we still need to test and set
+				 * PAGE_CLAIMED to avoid racing with
+				 * z3fold_free(), so just do it now before
+				 * leaving the loop.
+				 */
+				if (test_and_set_bit(PAGE_CLAIMED, &page->private))
+					continue;
+
 				break;
+			}
 
 			if (kref_get_unless_zero(&zhdr->refcount) == 0) {
 				zhdr = NULL;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #69 lore raw

PATCH 69/221 squashfs: fix inode lookup sanity checks

From: Sean Nyekjaer <[email protected]>

commit c1b2028315c6b15e8d6725e0d5884b15887d3daa upstream.

When mouting a squashfs image created without inode compression it fails
with: "unable to read inode lookup table"

It turns out that the BLOCK_OFFSET is missing when checking the SQUASHFS_METADATA_SIZE agaist the actual size.

Link https://lkml.kernel.org/r/[email protected] open here

Fixes eabac19e40c0 ("squashfs: add more sanity checks in inode lookup")

Signed-off-by Sean Nyekjaer <[email protected]>

Acked-by Phillip Lougher <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 fs/squashfs/export.c      |    8 ++++++--
 fs/squashfs/squashfs_fs.h |    1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

fs/squashfs/export.c +6 -2

@@ -152,14 +152,18 @@ __le64 *squashfs_read_inode_lookup_table
 		start = le64_to_cpu(table[n]);
 		end = le64_to_cpu(table[n + 1]);
 
-		if (start >= end || (end - start) > SQUASHFS_METADATA_SIZE) {
+		if (start >= end
+		    || (end - start) >
+		    (SQUASHFS_METADATA_SIZE + SQUASHFS_BLOCK_OFFSET)) {
 			kfree(table);
 			return ERR_PTR(-EINVAL);
 		}
 	}
 
 	start = le64_to_cpu(table[indexes - 1]);
-	if (start >= lookup_table_start || (lookup_table_start - start) > SQUASHFS_METADATA_SIZE) {
+	if (start >= lookup_table_start ||
+	    (lookup_table_start - start) >
+	    (SQUASHFS_METADATA_SIZE + SQUASHFS_BLOCK_OFFSET)) {
 		kfree(table);
 		return ERR_PTR(-EINVAL);
 	}

fs/squashfs/squashfs_fs.h +1 -0

@@ -17,6 +17,7 @@
 
 /* size of metadata (inode and directory) blocks */
 #define SQUASHFS_METADATA_SIZE		8192
+#define SQUASHFS_BLOCK_OFFSET		2
 
 /* default size of block device I/O */
 #ifdef CONFIG_SQUASHFS_4K_DEVBLK_SIZE

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #70 lore raw

PATCH 70/221 squashfs: fix xattr id and id lookup sanity checks

From: Phillip Lougher <[email protected]>

commit 8b44ca2b634527151af07447a8090a5f3a043321 upstream.

The checks for maximum metadata block size is missing SQUASHFS_BLOCK_OFFSET (the two byte length count).

Link https://lkml.kernel.org/r/[email protected] open here

Fixes f37aa4c7366e23f ("squashfs: add more sanity checks in id lookup")

Signed-off-by Phillip Lougher <[email protected]>

Cc Sean Nyekjaer <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 fs/squashfs/id.c       |    6 ++++--
 fs/squashfs/xattr_id.c |    6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

fs/squashfs/id.c +4 -2

@@ -97,14 +97,16 @@ __le64 *squashfs_read_id_index_table(str
 		start = le64_to_cpu(table[n]);
 		end = le64_to_cpu(table[n + 1]);
 
-		if (start >= end || (end - start) > SQUASHFS_METADATA_SIZE) {
+		if (start >= end || (end - start) >
+				(SQUASHFS_METADATA_SIZE + SQUASHFS_BLOCK_OFFSET)) {
 			kfree(table);
 			return ERR_PTR(-EINVAL);
 		}
 	}
 
 	start = le64_to_cpu(table[indexes - 1]);
-	if (start >= id_table_start || (id_table_start - start) > SQUASHFS_METADATA_SIZE) {
+	if (start >= id_table_start || (id_table_start - start) >
+				(SQUASHFS_METADATA_SIZE + SQUASHFS_BLOCK_OFFSET)) {
 		kfree(table);
 		return ERR_PTR(-EINVAL);
 	}

fs/squashfs/xattr_id.c +4 -2

@@ -109,14 +109,16 @@ __le64 *squashfs_read_xattr_id_table(str
 		start = le64_to_cpu(table[n]);
 		end = le64_to_cpu(table[n + 1]);
 
-		if (start >= end || (end - start) > SQUASHFS_METADATA_SIZE) {
+		if (start >= end || (end - start) >
+				(SQUASHFS_METADATA_SIZE + SQUASHFS_BLOCK_OFFSET)) {
 			kfree(table);
 			return ERR_PTR(-EINVAL);
 		}
 	}
 
 	start = le64_to_cpu(table[indexes - 1]);
-	if (start >= table_start || (table_start - start) > SQUASHFS_METADATA_SIZE) {
+	if (start >= table_start || (table_start - start) >
+				(SQUASHFS_METADATA_SIZE + SQUASHFS_BLOCK_OFFSET)) {
 		kfree(table);
 		return ERR_PTR(-EINVAL);
 	}

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #71 lore raw

PATCH 71/221 hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings

From: Miaohe Lin <[email protected]>

commit d85aecf2844ff02a0e5f077252b2461d4f10c9f0 upstream.

The current implementation of hugetlb_cgroup for shared mappings could have different behavior. Consider the following two scenarios:

1.Assume initial css reference count of hugetlb_cgroup is 1:
1.1 Call hugetlb_reserve_pages with from = 1, to = 2. So css reference
count is 2 associated with 1 file_region.
1.2 Call hugetlb_reserve_pages with from = 2, to = 3. So css reference
count is 3 associated with 2 file_region.
1.3 coalesce_file_region will coalesce these two file_regions into
one. So css reference count is 3 associated with 1 file_region now.

2.Assume initial css reference count of hugetlb_cgroup is 1 again:
2.1 Call hugetlb_reserve_pages with from = 1, to = 3. So css reference
count is 2 associated with 1 file_region.

Therefore, we might have one file_region while holding one or more css reference counts. This inconsistency could lead to imbalanced css_get() and css_put() pair. If we do css_put one by one (i.g. hole punch case), scenario 2 would put one more css reference. If we do css_put all together (i.g. truncate case), scenario 1 will leak one css reference.

The imbalanced css_get() and css_put() pair would result in a non-zero reference when we try to destroy the hugetlb cgroup. The hugetlb cgroup directory is removed __but__ associated resource is not freed. This might result in OOM or can not create a new hugetlb cgroup in a busy workload ultimately.

In order to fix this, we have to make sure that one file_region must hold exactly one css reference. So in coalesce_file_region case, we should release one css reference before coalescence. Also only put css reference when the entire file_region is removed.

The last thing to note is that the caller of region_add() will only hold one reference to h_cg->css for the whole contiguous reservation region. But this area might be scattered when there are already some file_regions reside in it. As a result, many file_regions may share only one h_cg->css reference. In order to ensure that one file_region must hold exactly one css reference, we should do css_get() for each file_region and release the reference held by caller when they are done.

[[email protected]: fix imbalanced css_get and css_put pair for shared mappings]

Link https://lkml.kernel.org/r/[email protected] open here

Fixes 075a61d07a8e ("hugetlb_cgroup: add accounting for shared mappings")

Reported-by kernel test robot <[email protected]> (auto build test ERROR)

Signed-off-by Miaohe Lin <[email protected]>

Reviewed-by Mike Kravetz <[email protected]>

Cc Aneesh Kumar K.V <[email protected]>

Cc Wanpeng Li <[email protected]>

Cc Mina Almasry <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 include/linux/hugetlb_cgroup.h |   15 +++++++++++++--
 mm/hugetlb.c                   |   41 +++++++++++++++++++++++++++++++++++++----
 mm/hugetlb_cgroup.c            |   10 ++++++++--
 3 files changed, 58 insertions(+), 8 deletions(-)

include/linux/hugetlb_cgroup.h +13 -2

@@ -113,6 +113,11 @@ static inline bool hugetlb_cgroup_disabl
 	return !cgroup_subsys_enabled(hugetlb_cgrp_subsys);
 }
 
+static inline void hugetlb_cgroup_put_rsvd_cgroup(struct hugetlb_cgroup *h_cg)
+{
+	css_put(&h_cg->css);
+}
+
 extern int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
 					struct hugetlb_cgroup **ptr);
 extern int hugetlb_cgroup_charge_cgroup_rsvd(int idx, unsigned long nr_pages,

@@ -138,7 +143,8 @@ extern void hugetlb_cgroup_uncharge_coun
 
 extern void hugetlb_cgroup_uncharge_file_region(struct resv_map *resv,
 						struct file_region *rg,
-						unsigned long nr_pages);
+						unsigned long nr_pages,
+						bool region_del);
 
 extern void hugetlb_cgroup_file_init(void) __init;
 extern void hugetlb_cgroup_migrate(struct page *oldhpage,

@@ -147,7 +153,8 @@ extern void hugetlb_cgroup_migrate(struc
 #else
 static inline void hugetlb_cgroup_uncharge_file_region(struct resv_map *resv,
 						       struct file_region *rg,
-						       unsigned long nr_pages)
+						       unsigned long nr_pages,
+						       bool region_del)
 {
 }

@@ -185,6 +192,10 @@ static inline bool hugetlb_cgroup_disabl
 	return true;
 }
 
+static inline void hugetlb_cgroup_put_rsvd_cgroup(struct hugetlb_cgroup *h_cg)
+{
+}
+
 static inline int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
 					       struct hugetlb_cgroup **ptr)
 {

mm/hugetlb.c +37 -4

100 lines not on this page · raw message

mm/hugetlb_cgroup.c +8 -2

@@ -391,7 +391,8 @@ void hugetlb_cgroup_uncharge_counter(str
 
 void hugetlb_cgroup_uncharge_file_region(struct resv_map *resv,
 					 struct file_region *rg,
-					 unsigned long nr_pages)
+					 unsigned long nr_pages,
+					 bool region_del)
 {
 	if (hugetlb_cgroup_disabled() || !resv || !rg || !nr_pages)
 		return;

@@ -400,7 +401,12 @@ void hugetlb_cgroup_uncharge_file_region
 	    !resv->reservation_counter) {
 		page_counter_uncharge(rg->reservation_counter,
 				      nr_pages * resv->pages_per_hpage);
-		css_put(rg->css);
+		/*
+		 * Only do css_put(rg->css) when we delete the entire region
+		 * because one file_region must hold exactly one css reference.
+		 */
+		if (region_del)
+			css_put(rg->css);
 	}
 }

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #72 lore raw

PATCH 72/221 kasan: fix per-page tags for non-page_alloc pages

Link https://lkml.kernel.org/r/1a41abb11c51b264511d9e71c303bb16d5cb367b.1615475452.git.andreyknvl@google.com open here

From: Andrey Konovalov <[email protected]>

commit cf10bd4c4aff8dd64d1aa7f2a529d0c672bc16af upstream.

To allow performing tag checks on page_alloc addresses obtained via page_address(), tag-based KASAN modes store tags for page_alloc allocations in page->flags.

Currently, the default tag value stored in page->flags is 0x00. Therefore, page_address() returns a 0x00ffff... address for pages that were not allocated via page_alloc.

This might cause problems. A particular case we encountered is a conflict with KFENCE. If a KFENCE-allocated slab object is being freed via kfree(page_address(page) + offset), the address passed to kfree() will get tagged with 0x00 (as slab pages keep the default per-page tags). This leads to is_kfence_address() check failing, and a KFENCE object ending up in normal slab freelist, which causes memory corruptions.

This patch changes the way KASAN stores tag in page-flags: they are now stored xor'ed with 0xff. This way, KASAN doesn't need to initialize per-page flags for every created page, which might be slow.

With this change, page_address() returns natively-tagged (with 0xff) pointers for pages that didn't have tags set explicitly.

This patch fixes the encountered conflict with KFENCE and prevents more similar issues that can occur in the future.

Fixes 2813b9c02962 ("kasan, mm, arm64: tag non slab memory allocated via pagealloc")

Signed-off-by Andrey Konovalov <[email protected]>

Reviewed-by Marco Elver <[email protected]>

Cc Catalin Marinas <[email protected]>

Cc Will Deacon <[email protected]>

Cc Vincenzo Frascino <[email protected]>

Cc Dmitry Vyukov <[email protected]>

Cc Andrey Ryabinin <[email protected]>

Cc Alexander Potapenko <[email protected]>

Cc Peter Collingbourne <[email protected]>

Cc Evgenii Stepanov <[email protected]>

Cc Branislav Rankov <[email protected]>

Cc Kevin Brodsky <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 include/linux/mm.h |   15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

include/linux/mm.h +14 -1

@@ -1414,13 +1414,26 @@ static inline bool cpupid_match_pid(stru
 #endif /* CONFIG_NUMA_BALANCING */
 
 #ifdef CONFIG_KASAN_SW_TAGS
+
+/*
+ * KASAN per-page tags are stored xor'ed with 0xff. This allows to avoid
+ * setting tags for all pages to native kernel tag value 0xff, as the default
+ * value 0x00 maps to 0xff.
+ */
+
 static inline u8 page_kasan_tag(const struct page *page)
 {
-	return (page->flags >> KASAN_TAG_PGSHIFT) & KASAN_TAG_MASK;
+	u8 tag;
+
+	tag = (page->flags >> KASAN_TAG_PGSHIFT) & KASAN_TAG_MASK;
+	tag ^= 0xff;
+
+	return tag;
 }
 
 static inline void page_kasan_tag_set(struct page *page, u8 tag)
 {
+	tag ^= 0xff;
 	page->flags &= ~(KASAN_TAG_MASK << KASAN_TAG_PGSHIFT);
 	page->flags |= (tag & KASAN_TAG_MASK) << KASAN_TAG_PGSHIFT;
 }

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #73 lore raw

PATCH 73/221 gcov: fix clang-11+ support

Link https://reviews.llvm.org/rGcdd683b516d147925212724b09ec6fb792a40041

From: Nick Desaulniers <[email protected]>

commit 60bcf728ee7c60ac2a1f9a0eaceb3a7b3954cd2b upstream.

LLVM changed the expected function signatures for llvm_gcda_start_file() and llvm_gcda_emit_function() in the clang-11 release. Users of clang-11 or newer may have noticed their kernels failing to boot due to a panic when enabling CONFIG_GCOV_KERNEL=y +CONFIG_GCOV_PROFILE_ALL=y. Fix up the function signatures so calling these functions doesn't panic the kernel.

Link https://reviews.llvm.org/rG13a633b438b6500ecad9e4f936ebadf3411d0f44

Link https://lkml.kernel.org/r/[email protected] open here

Signed-off-by Nick Desaulniers <[email protected]>

Reported-by Prasad Sodagudi <[email protected]>

Reviewed-by Fangrui Song <[email protected]>

Tested-by Nathan Chancellor <[email protected]>

Acked-by Peter Oberparleiter <[email protected]>

Reviewed-by Nathan Chancellor <[email protected]>

Cc <[email protected]> [5.4+]

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 kernel/gcov/clang.c |   69 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

kernel/gcov/clang.c +69 -0

@@ -75,7 +75,9 @@ struct gcov_fn_info {
 
 	u32 num_counters;
 	u64 *counters;
+#if CONFIG_CLANG_VERSION < 110000
 	const char *function_name;
+#endif
 };
 
 static struct gcov_info *current_info;

@@ -105,6 +107,7 @@ void llvm_gcov_init(llvm_gcov_callback w
 }
 EXPORT_SYMBOL(llvm_gcov_init);
 
+#if CONFIG_CLANG_VERSION < 110000
 void llvm_gcda_start_file(const char *orig_filename, const char version[4],
 		u32 checksum)
 {

@@ -113,7 +116,17 @@ void llvm_gcda_start_file(const char *or
 	current_info->checksum = checksum;
 }
 EXPORT_SYMBOL(llvm_gcda_start_file);
+#else
+void llvm_gcda_start_file(const char *orig_filename, u32 version, u32 checksum)
+{
+	current_info->filename = orig_filename;
+	current_info->version = version;
+	current_info->checksum = checksum;
+}
+EXPORT_SYMBOL(llvm_gcda_start_file);
+#endif
 
+#if CONFIG_CLANG_VERSION < 110000
 void llvm_gcda_emit_function(u32 ident, const char *function_name,
 		u32 func_checksum, u8 use_extra_checksum, u32 cfg_checksum)
 {

@@ -133,6 +146,24 @@ void llvm_gcda_emit_function(u32 ident,
 	list_add_tail(&info->head, &current_info->functions);
 }
 EXPORT_SYMBOL(llvm_gcda_emit_function);
+#else
+void llvm_gcda_emit_function(u32 ident, u32 func_checksum,
+		u8 use_extra_checksum, u32 cfg_checksum)
+{
+	struct gcov_fn_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
+
+	if (!info)
+		return;
+
+	INIT_LIST_HEAD(&info->head);
+	info->ident = ident;
+	info->checksum = func_checksum;
+	info->use_extra_checksum = use_extra_checksum;
+	info->cfg_checksum = cfg_checksum;
+	list_add_tail(&info->head, &current_info->functions);
+}
+EXPORT_SYMBOL(llvm_gcda_emit_function);
+#endif
 
 void llvm_gcda_emit_arcs(u32 num_counters, u64 *counters)
 {

@@ -295,6 +326,7 @@ void gcov_info_add(struct gcov_info *dst
 	}
 }
 
+#if CONFIG_CLANG_VERSION < 110000
 static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn)
 {
 	size_t cv_size; /* counter values size */

@@ -322,6 +354,28 @@ err_name:
 	kfree(fn_dup);
 	return NULL;
 }
+#else
+static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn)
+{
+	size_t cv_size; /* counter values size */
+	struct gcov_fn_info *fn_dup = kmemdup(fn, sizeof(*fn),
+			GFP_KERNEL);
+	if (!fn_dup)
+		return NULL;
+	INIT_LIST_HEAD(&fn_dup->head);
+
+	cv_size = fn->num_counters * sizeof(fn->counters[0]);
+	fn_dup->counters = vmalloc(cv_size);
+	if (!fn_dup->counters) {
+		kfree(fn_dup);
+		return NULL;
+	}
+
+	memcpy(fn_dup->counters, fn->counters, cv_size);
+
+	return fn_dup;
+}
+#endif
 
 /**
  * gcov_info_dup - duplicate profiling data set

@@ -362,6 +416,7 @@ err:
  * gcov_info_free - release memory for profiling data set duplicate
  * @info: profiling data set duplicate to free
  */
+#if CONFIG_CLANG_VERSION < 110000
 void gcov_info_free(struct gcov_info *info)
 {
 	struct gcov_fn_info *fn, *tmp;

@@ -375,6 +430,20 @@ void gcov_info_free(struct gcov_info *in
 	kfree(info->filename);
 	kfree(info);
 }
+#else
+void gcov_info_free(struct gcov_info *info)
+{
+	struct gcov_fn_info *fn, *tmp;
+
+	list_for_each_entry_safe(fn, tmp, &info->functions, head) {
+		vfree(fn->counters);
+		list_del(&fn->head);
+		kfree(fn);
+	}
+	kfree(info->filename);
+	kfree(info);
+}
+#endif
 
 #define ITER_STRIDE	PAGE_SIZE

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #74 lore raw

PATCH 74/221 ACPI: video: Add missing callback back for Sony VPCEH3U1E

From: Chris Chiu <[email protected]>

commit c1d1e25a8c542816ae8dee41b81a18d30c7519a0 upstream.

The .callback of the quirk for Sony VPCEH3U1E was unintetionally removed by the commit 25417185e9b5 ("ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807"). Add it back to make sure the quirk for Sony VPCEH3U1E works as expected.

Fixes 25417185e9b5 ("ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807")

Signed-off-by Chris Chiu <[email protected]>

Reported-by Pavel Machek <[email protected]>

Reviewed-by Pavel Machek (CIP) <[email protected]>

Cc 5.11+ <[email protected]> # 5.11+

Signed-off-by Rafael J. Wysocki <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/acpi/video_detect.c |    1 +
 1 file changed, 1 insertion(+)

drivers/acpi/video_detect.c +1 -0

@@ -147,6 +147,7 @@ static const struct dmi_system_id video_
 		},
 	},
 	{
+	.callback = video_detect_force_vendor,
 	.ident = "Sony VPCEH3U1E",
 	.matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #75 lore raw

PATCH 75/221 ACPICA: Always create namespace nodes using acpi_ns_create_node()

Link https://lore.kernel.org/lkml/[email protected]/ open here

From: Vegard Nossum <[email protected]>

commit 25928deeb1e4e2cdae1dccff349320c6841eb5f8 upstream.

ACPICA commit 29da9a2a3f5b2c60420893e5c6309a0586d7a329

ACPI is allocating an object using kmalloc(), but then frees it using kmem_cache_free(<"Acpi-Namespace" kmem_cache>).

This is wrong and can lead to boot failures manifesting like this:

    hpet0: 3 comparators, 64-bit 100.000000 MHz counter
    clocksource: Switched to clocksource tsc-early
    BUG: unable to handle page fault for address: 000000003ffe0018
    #PF: supervisor read access in kernel mode
    #PF: error_code(0x0000) - not-present page
    PGD 0 P4D 0
    Oops: 0000 [#1] SMP PTI
    CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.6.0+ #211
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
Ubuntu-1.8.2-1ubuntu1 04/01/2014
    RIP: 0010:kmem_cache_alloc+0x70/0x1d0
    Code: 00 00 4c 8b 45 00 65 49 8b 50 08 65 4c 03 05 6f cc e7 7e 4d 8b
20 4d 85 e4 0f 84 3d 01 00 00 8b 45 20 48 8b 7d 00 48 8d 4a 01 <49> 8b
   1c 04 4c 89 e0 65 48 0f c7 0f 0f 94 c0 84 c0 74 c5 8b 45 20
    RSP: 0000:ffffc90000013df8 EFLAGS: 00010206
    RAX: 0000000000000018 RBX: ffffffff81c49200 RCX: 0000000000000002
    RDX: 0000000000000001 RSI: 0000000000000dc0 RDI: 000000000002b300
    RBP: ffff88803e403d00 R08: ffff88803ec2b300 R09: 0000000000000001
    R10: 0000000000000dc0 R11: 0000000000000006 R12: 000000003ffe0000
    R13: ffffffff8110a583 R14: 0000000000000dc0 R15: ffffffff81c49a80
    FS:  0000000000000000(0000) GS:ffff88803ec00000(0000)
knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 000000003ffe0018 CR3: 0000000001c0a001 CR4: 00000000003606f0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    Call Trace:
     __trace_define_field+0x33/0xa0
     event_trace_init+0xeb/0x2b4
     tracer_init_tracefs+0x60/0x195
     ? register_tracer+0x1e7/0x1e7
     do_one_initcall+0x74/0x160
     kernel_init_freeable+0x190/0x1f0
     ? rest_init+0x9a/0x9a
     kernel_init+0x5/0xf6
     ret_from_fork+0x35/0x40
    CR2: 000000003ffe0018
    ---[ end trace 707efa023f2ee960 ]---
    RIP: 0010:kmem_cache_alloc+0x70/0x1d0

Bisection leads to unrelated changes in slab; Vlastimil Babka suggests an unrelated layout or slab merge change merely exposed the underlying bug.

Link https://lore.kernel.org/r/[email protected] open here

Link https://github.com/acpica/acpica/commit/29da9a2a

Fixes f79c8e4136ea ("ACPICA: Namespace: simplify creation of the initial/default namespace")

Reported-by Jan Kiszka <[email protected]>

Diagnosed-by Vlastimil Babka <[email protected]>

Diagnosed-by Kees Cook <[email protected]>

Signed-off-by Vegard Nossum <[email protected]>

Signed-off-by Bob Moore <[email protected]>

Signed-off-by Erik Kaneda <[email protected]>

Cc 5.10+ <[email protected]> # 5.10+

Signed-off-by Rafael J. Wysocki <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/acpi/acpica/nsaccess.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

drivers/acpi/acpica/nsaccess.c +1 -2

@@ -99,13 +99,12 @@ acpi_status acpi_ns_root_initialize(void
 		 * just create and link the new node(s) here.
 		 */
 		new_node =
-		    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_namespace_node));
+		    acpi_ns_create_node(*ACPI_CAST_PTR(u32, init_val->name));
 		if (!new_node) {
 			status = AE_NO_MEMORY;
 			goto unlock_and_exit;
 		}
 
-		ACPI_COPY_NAMESEG(new_node->name.ascii, init_val->name);
 		new_node->descriptor_type = ACPI_DESC_TYPE_NAMED;
 		new_node->type = init_val->type;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:20 UTC #76 lore raw

PATCH 76/221 arm64: stacktrace: dont trace arch_stack_walk()

From: Mark Rutland <[email protected]>

commit c607ab4f916d4d5259072eca34055d3f5a795c21 upstream.

We recently converted arm64 to use arch_stack_walk() in commit:

5fc57df2f6fd ("arm64: stacktrace: Convert to ARCH_STACKWALK")

The core stacktrace code expects that (when tracing the current task) arch_stack_walk() starts a trace at its caller, and does not include itself in the trace. However, arm64's arch_stack_walk() includes itself, and so traces include one more entry than callers expect. The core stacktrace code which calls arch_stack_walk() tries to skip a number of entries to prevent itself appearing in a trace, and the additional entry prevents skipping one of the core stacktrace functions, leaving this in the trace unexpectedly.

We can fix this by having arm64's arch_stack_walk() begin the trace with its caller. The first value returned by the trace will be __builtin_return_address(0), i.e. the caller of arch_stack_walk(). The first frame record to be unwound will be __builtin_frame_address(1), i.e. the caller's frame record. To prevent surprises, arch_stack_walk() is also marked noinline.

While __builtin_frame_address(1) is not safe in portable code, local GCC developers have confirmed that it is safe on arm64. To find the caller's frame record, the builtin can safely dereference the current function's frame record or (in theory) could stash the original FP into another GPR at function entry time, neither of which are problematic.

Prior to this patch, the tracing code would unexpectedly show up in traces of the current task, e.g.

| # cat /proc/self/stack
| [<0>] stack_trace_save_tsk+0x98/0x100
| [<0>] proc_pid_stack+0xb4/0x130
| [<0>] proc_single_show+0x60/0x110
| [<0>] seq_read_iter+0x230/0x4d0
| [<0>] seq_read+0xdc/0x130
| [<0>] vfs_read+0xac/0x1e0
| [<0>] ksys_read+0x6c/0xfc
| [<0>] __arm64_sys_read+0x20/0x30
| [<0>] el0_svc_common.constprop.0+0x60/0x120
| [<0>] do_el0_svc+0x24/0x90
| [<0>] el0_svc+0x2c/0x54
| [<0>] el0_sync_handler+0x1a4/0x1b0
| [<0>] el0_sync+0x170/0x180

After this patch, the tracing code will not show up in such traces:

| # cat /proc/self/stack
| [<0>] proc_pid_stack+0xb4/0x130
| [<0>] proc_single_show+0x60/0x110
| [<0>] seq_read_iter+0x230/0x4d0
| [<0>] seq_read+0xdc/0x130
| [<0>] vfs_read+0xac/0x1e0
| [<0>] ksys_read+0x6c/0xfc
| [<0>] __arm64_sys_read+0x20/0x30
| [<0>] el0_svc_common.constprop.0+0x60/0x120
| [<0>] do_el0_svc+0x24/0x90
| [<0>] el0_svc+0x2c/0x54
| [<0>] el0_sync_handler+0x1a4/0x1b0
| [<0>] el0_sync+0x170/0x180

Erring on the side of caution, I've given this a spin with a bunch of toolchains, verifying the output of /proc/self/stack and checking that the assembly looked sound. For GCC (where we require version 5.1.0 or later) I tested with the kernel.org crosstool binares for versions 5.5.0, 6.4.0, 6.5.0, 7.3.0, 7.5.0, 8.1.0, 8.3.0, 8.4.0, 9.2.0, and 10.1.0. For clang (where we require version 10.0.1 or later) I tested with the llvm.org binary releases of 11.0.0, and 11.0.1.

Fixes 5fc57df2f6fd ("arm64: stacktrace: Convert to ARCH_STACKWALK")

Signed-off-by Mark Rutland <[email protected]>

Cc Catalin Marinas <[email protected]>

Cc Chen Jun <[email protected]>

Cc Marco Elver <[email protected]>

Cc Mark Brown <[email protected]>

Cc Will Deacon <[email protected]>

Cc <[email protected]> # 5.10.x

Reviewed-by Catalin Marinas <[email protected]>

Reviewed-by Mark Brown <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Will Deacon <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm64/kernel/stacktrace.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

arch/arm64/kernel/stacktrace.c +5 -4

@@ -199,8 +199,9 @@ void show_stack(struct task_struct *tsk,
 
 #ifdef CONFIG_STACKTRACE
 
-void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
-		     struct task_struct *task, struct pt_regs *regs)
+noinline void arch_stack_walk(stack_trace_consume_fn consume_entry,
+			      void *cookie, struct task_struct *task,
+			      struct pt_regs *regs)
 {
 	struct stackframe frame;

@@ -208,8 +209,8 @@ void arch_stack_walk(stack_trace_consume
 		start_backtrace(&frame, regs->regs[29], regs->pc);
 	else if (task == current)
 		start_backtrace(&frame,
-				(unsigned long)__builtin_frame_address(0),
-				(unsigned long)arch_stack_walk);
+				(unsigned long)__builtin_frame_address(1),
+				(unsigned long)__builtin_return_address(0));
 	else
 		start_backtrace(&frame, thread_saved_fp(task),
 				thread_saved_pc(task));

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #77 lore raw

PATCH 77/221 arm64: dts: ls1046a: mark crypto engine dma coherent

Link https://lore.kernel.org/linux-crypto/[email protected] open here

From: Horia Geantă <[email protected]>

commit 9c3a16f88385e671b63a0de7b82b85e604a80f42 upstream.

Crypto engine (CAAM) on LS1046A platform is configured HW-coherent, mark accordingly the DT node.

As reported by Greg and Sascha, and explained by Robin, lack of "dma-coherent" property for an IP that is configured HW-coherent can lead to problems, e.g. on v5.11:

Quoted 34 lines

kernel BUG at drivers/crypto/caam/jr.c:247!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.11.0-20210225-3-00039-g434215968816-dirty #12
Hardware name: TQ TQMLS1046A SoM on Arkona AT1130 (C300) board (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--)
pc : caam_jr_dequeue+0x98/0x57c
lr : caam_jr_dequeue+0x98/0x57c
sp : ffff800010003d50
x29: ffff800010003d50 x28: ffff8000118d4000
x27: ffff8000118d4328 x26: 00000000000001f0
x25: ffff0008022be480 x24: ffff0008022c6410
x23: 00000000000001f1 x22: ffff8000118d4329
x21: 0000000000004d80 x20: 00000000000001f1
x19: 0000000000000001 x18: 0000000000000020
x17: 0000000000000000 x16: 0000000000000015
x15: ffff800011690230 x14: 2e2e2e2e2e2e2e2e
x13: 2e2e2e2e2e2e2020 x12: 3030303030303030
x11: ffff800011700a38 x10: 00000000fffff000
x9 : ffff8000100ada30 x8 : ffff8000116a8a38
x7 : 0000000000000001 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000
x3 : 00000000ffffffff x2 : 0000000000000000
x1 : 0000000000000000 x0 : 0000000000001800
Call trace:
 caam_jr_dequeue+0x98/0x57c
 tasklet_action_common.constprop.0+0x164/0x18c
 tasklet_action+0x44/0x54
 __do_softirq+0x160/0x454
 __irq_exit_rcu+0x164/0x16c
 irq_exit+0x1c/0x30
 __handle_domain_irq+0xc0/0x13c
 gic_handle_irq+0x5c/0xf0
 el1_irq+0xb4/0x180

Quoted 8 lines

 arch_cpu_idle+0x18/0x30
 default_idle_call+0x3c/0x1c0
 do_idle+0x23c/0x274
 cpu_startup_entry+0x34/0x70
 rest_init+0xdc/0xec
 arch_call_rest_init+0x1c/0x28
 start_kernel+0x4ac/0x4e4
Code: 91392021 912c2000 d377d8c6 97f24d96 (d4210000)

Cc <[email protected]> # v4.10+

Fixes 8126d88162a5 ("arm64: dts: add QorIQ LS1046A SoC support")

Reported-by Greg Ungerer <[email protected]>

Reported-by Sascha Hauer <[email protected]>

Tested-by Sascha Hauer <[email protected]>

Signed-off-by Horia Geantă <[email protected]>

Acked-by Greg Ungerer <[email protected]>

Acked-by Li Yang <[email protected]>

Signed-off-by Shawn Guo <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi |    1 +
 1 file changed, 1 insertion(+)

arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi +1 -0

@@ -325,6 +325,7 @@
 			ranges = <0x0 0x00 0x1700000 0x100000>;
 			reg = <0x00 0x1700000 0x0 0x100000>;
 			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			dma-coherent;
 
 			sec_jr0: jr@10000 {
 				compatible = "fsl,sec-v5.4-job-ring",

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #78 lore raw

PATCH 78/221 arm64: dts: ls1012a: mark crypto engine dma coherent

From: Horia Geantă <[email protected]>

commit ba8da03fa7dff59d9400250aebd38f94cde3cb0f upstream.

Crypto engine (CAAM) on LS1012A platform is configured HW-coherent, mark accordingly the DT node.

Lack of "dma-coherent" property for an IP that is configured HW-coherent can lead to problems, similar to what has been reported for LS1046A.

Cc <[email protected]> # v4.12+

Fixes 85b85c569507 ("arm64: dts: ls1012a: add crypto node")

Signed-off-by Horia Geantă <[email protected]>

Acked-by Li Yang <[email protected]>

Signed-off-by Shawn Guo <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi |    1 +
 1 file changed, 1 insertion(+)

arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi +1 -0

@@ -192,6 +192,7 @@
 			ranges = <0x0 0x00 0x1700000 0x100000>;
 			reg = <0x00 0x1700000 0x0 0x100000>;
 			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			dma-coherent;
 
 			sec_jr0: jr@10000 {
 				compatible = "fsl,sec-v5.4-job-ring",

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #79 lore raw

PATCH 79/221 arm64: dts: ls1043a: mark crypto engine dma coherent

Link https://lore.kernel.org/linux-crypto/[email protected] open here

From: Horia Geantă <[email protected]>

commit 4fb3a074755b7737c4081cffe0ccfa08c2f2d29d upstream.

Crypto engine (CAAM) on LS1043A platform is configured HW-coherent, mark accordingly the DT node.

Lack of "dma-coherent" property for an IP that is configured HW-coherent can lead to problems, similar to what has been reported for LS1046A.

Cc <[email protected]> # v4.8+

Fixes 63dac35b58f4 ("arm64: dts: ls1043a: add crypto node")

Signed-off-by Horia Geantă <[email protected]>

Acked-by Li Yang <[email protected]>

Signed-off-by Shawn Guo <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi |    1 +
 1 file changed, 1 insertion(+)

arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi +1 -0

@@ -322,6 +322,7 @@
 			ranges = <0x0 0x00 0x1700000 0x100000>;
 			reg = <0x00 0x1700000 0x0 0x100000>;
 			interrupts = <0 75 0x4>;
+			dma-coherent;
 
 			sec_jr0: jr@10000 {
 				compatible = "fsl,sec-v5.4-job-ring",

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #80 lore raw

PATCH 80/221 ARM: dts: at91: sam9x60: fix mux-mask for PA7 so it can be set to A, B and C

From: Federico Pellegrin <[email protected]>

commit 664979bba8169d775959452def968d1a7c03901f upstream.

According to the datasheet PA7 can be set to either function A, B or C (see table 6-2 of DS60001579D). The previous value would permit just configuring with function C.

Signed-off-by Federico Pellegrin <[email protected]>

Fixes 1e5f532c2737 ("ARM: dts: at91: sam9x60: add device tree for soc and board")

Cc <[email protected]> # 5.6+

Cc Sandeep Sheriker Mallikarjun <[email protected]>

Signed-off-by Nicolas Ferre <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm/boot/dts/at91-sam9x60ek.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

arch/arm/boot/dts/at91-sam9x60ek.dts +1 -1

@@ -336,7 +336,7 @@
 &pinctrl {
 	atmel,mux-mask = <
 			 /*	A	B	C	*/
-			 0xFFFFFE7F 0xC0E0397F 0xEF00019D	/* pioA */
+			 0xFFFFFEFF 0xC0E039FF 0xEF00019D	/* pioA */
 			 0x03FFFFFF 0x02FC7E68 0x00780000	/* pioB */
 			 0xffffffff 0xF83FFFFF 0xB800F3FC	/* pioC */
 			 0x003FFFFF 0x003F8000 0x00000000	/* pioD */

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #81 lore raw

PATCH 81/221 ARM: dts: at91: sam9x60: fix mux-mask to match products datasheet

From: Nicolas Ferre <[email protected]>

commit 2c69c8a1736eace8de491d480e6e577a27c2087c upstream.

Fix the whole mux-mask table according to datasheet for the sam9x60 product. Too much functions for pins were disabled leading to misunderstandings when enabling more peripherals or taking this table as an example for another board.
Take advantage of this fix to move the mux-mask in the SoC file where it belongs and use lower case letters for hex numbers like everywhere in the file.

Signed-off-by Nicolas Ferre <[email protected]>

Fixes 1e5f532c2737 ("ARM: dts: at91: sam9x60: add device tree for soc and board")

Cc <[email protected]> # 5.6+

Cc Sandeep Sheriker Mallikarjun <[email protected]>

Reviewed-by Tudor Ambarus <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm/boot/dts/at91-sam9x60ek.dts |    8 --------
 arch/arm/boot/dts/sam9x60.dtsi       |    9 +++++++++
 2 files changed, 9 insertions(+), 8 deletions(-)

arch/arm/boot/dts/at91-sam9x60ek.dts +0 -8

@@ -334,14 +334,6 @@
 };
 
 &pinctrl {
-	atmel,mux-mask = <
-			 /*	A	B	C	*/
-			 0xFFFFFEFF 0xC0E039FF 0xEF00019D	/* pioA */
-			 0x03FFFFFF 0x02FC7E68 0x00780000	/* pioB */
-			 0xffffffff 0xF83FFFFF 0xB800F3FC	/* pioC */
-			 0x003FFFFF 0x003F8000 0x00000000	/* pioD */
-			 >;
-
 	adc {
 		pinctrl_adc_default: adc_default {
 			atmel,pins = <AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE>;

arch/arm/boot/dts/sam9x60.dtsi +9 -0

@@ -606,6 +606,15 @@
 				compatible = "microchip,sam9x60-pinctrl", "atmel,at91sam9x5-pinctrl", "atmel,at91rm9200-pinctrl", "simple-bus";
 				ranges = <0xfffff400 0xfffff400 0x800>;
 
+				/* mux-mask corresponding to sam9x60 SoC in TFBGA228L package */
+				atmel,mux-mask = <
+						 /*	A	B	C	*/
+						 0xffffffff 0xffe03fff 0xef00019d	/* pioA */
+						 0x03ffffff 0x02fc7e7f 0x00780000	/* pioB */
+						 0xffffffff 0xffffffff 0xf83fffff	/* pioC */
+						 0x003fffff 0x003f8000 0x00000000	/* pioD */
+						 >;
+
 				pioA: gpio@fffff400 {
 					compatible = "microchip,sam9x60-gpio", "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
 					reg = <0xfffff400 0x200>;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #82 lore raw

PATCH 82/221 ARM: dts: at91-sama5d27_som1: fix phy address to 7

From: Claudiu Beznea <[email protected]>

commit 221c3a09ddf70a0a51715e6c2878d8305e95c558 upstream.

Fix the phy address to 7 for Ethernet PHY on SAMA5D27 SOM1. No connection established if phy address 0 is used.

The board uses the 24 pins version of the KSZ8081RNA part, KSZ8081RNA pin 16 REFCLK as PHYAD bit [2] has weak internal pull-down. But at reset, connected to PD09 of the MPU it's connected with an internal pull-up forming PHYAD[2:0] = 7.

Signed-off-by Claudiu Beznea <[email protected]>

Fixes 2f61929eb10a ("ARM: dts: at91: at91-sama5d27_som1: fix PHY ID")

Cc Ludovic Desroches <[email protected]>

Signed-off-by Nicolas Ferre <[email protected]>

Cc <[email protected]> # 4.14+

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/arm/boot/dts/at91-sama5d27_som1.dtsi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

arch/arm/boot/dts/at91-sama5d27_som1.dtsi +2 -2

@@ -84,8 +84,8 @@
 				pinctrl-0 = <&pinctrl_macb0_default>;
 				phy-mode = "rmii";
 
-				ethernet-phy@0 {
-					reg = <0x0>;
+				ethernet-phy@7 {
+					reg = <0x7>;
 					interrupt-parent = <&pioA>;
 					interrupts = <PIN_PD31 IRQ_TYPE_LEVEL_LOW>;
 					pinctrl-names = "default";

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #83 lore raw

PATCH 83/221 integrity: double check iint_cache was initialized

From: Mimi Zohar <[email protected]>

commit 92063f3ca73aab794bd5408d3361fd5b5ea33079 upstream.

The kernel may be built with multiple LSMs, but only a subset may be enabled on the boot command line by specifying "lsm=". Not including "integrity" on the ordered LSM list may result in a NULL deref.

As reported by Dmitry Vyukov:
in qemu:
qemu-system-x86_64 -enable-kvm -machine q35,nvdimm -cpu
max,migratable=off -smp 4 -m 4G,slots=4,maxmem=16G -hda
wheezy.img -kernel arch/x86/boot/bzImage -nographic -vga std
-soundhw all -usb -usbdevice tablet -bt hci -bt device:keyboard
-net user,host=10.0.2.10,hostfwd=tcp::10022-:22 -net
nic,model=virtio-net-pci -object
memory-backend-file,id=pmem1,share=off,mem-path=/dev/zero,size=64M
-device nvdimm,id=nvdimm1,memdev=pmem1 -append "console=ttyS0
root=/dev/sda earlyprintk=serial rodata=n oops=panic panic_on_warn=1
panic=86400 lsm=smack numa=fake=2 nopcid dummy_hcd.num=8" -pidfile
vm_pid -m 2G -cpu host

But it crashes on NULL deref in integrity_inode_get during boot:

Run /sbin/init as init process

BUG: kernel NULL pointer dereference, address: 000000000000001c
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc2+ #97
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.13.0-44-g88ab0c15525c-prebuilt.qemu.org 04/01/2014
RIP: 0010:kmem_cache_alloc+0x2b/0x370 mm/slub.c:2920
Code: 57 41 56 41 55 41 54 41 89 f4 55 48 89 fd 53 48 83 ec 10 44 8b
3d d9 1f 90 0b 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 31 c0 <8b> 5f
1c 4cf
RSP: 0000:ffffc9000032f9d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888017fc4f00 RCX: 0000000000000000
RDX: ffff888040220000 RSI: 0000000000000c40 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888019263627
R10: ffffffff83937cd1 R11: 0000000000000000 R12: 0000000000000c40
R13: ffff888019263538 R14: 0000000000000000 R15: 0000000000ffffff
FS:  0000000000000000(0000) GS:ffff88802d180000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000001c CR3: 000000000b48e000 CR4: 0000000000750ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 integrity_inode_get+0x47/0x260 security/integrity/iint.c:105
 process_measurement+0x33d/0x17e0 security/integrity/ima/ima_main.c:237
 ima_bprm_check+0xde/0x210 security/integrity/ima/ima_main.c:474
 security_bprm_check+0x7d/0xa0 security/security.c:845
 search_binary_handler fs/exec.c:1708 [inline]
 exec_binprm fs/exec.c:1761 [inline]
 bprm_execve fs/exec.c:1830 [inline]
 bprm_execve+0x764/0x19a0 fs/exec.c:1792
 kernel_execve+0x370/0x460 fs/exec.c:1973
 try_to_run_init_process+0x14/0x4e init/main.c:1366
 kernel_init+0x11d/0x1b8 init/main.c:1477
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
CR2: 000000000000001c
---[ end trace 22d601a500de7d79 ]---

Since LSMs and IMA may be configured at build time, but not enabled at run time, panic the system if "integrity" was not initialized before use.

Reported-by Dmitry Vyukov <[email protected]>

Fixes 79f7865d844c ("LSM: Introduce "lsm=" for boottime LSM selection")

Signed-off-by Mimi Zohar <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 security/integrity/iint.c |    8 ++++++++
 1 file changed, 8 insertions(+)

security/integrity/iint.c +8 -0

@@ -98,6 +98,14 @@ struct integrity_iint_cache *integrity_i
 	struct rb_node *node, *parent = NULL;
 	struct integrity_iint_cache *iint, *test_iint;
 
+	/*
+	 * The integrity's "iint_cache" is initialized at security_init(),
+	 * unless it is not included in the ordered list of LSMs enabled
+	 * on the boot command line.
+	 */
+	if (!iint_cache)
+		panic("%s: lsm=integrity required.\n", __func__);
+
 	iint = integrity_iint_find(inode);
 	if (iint)
 		return iint;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #84 lore raw

PATCH 84/221 drm/etnaviv: Use FOLL_FORCE for userptr

From: Daniel Vetter <[email protected]>

commit cd5297b0855f17c8b4e3ef1d20c6a3656209c7b3 upstream.

Nothing checks userptr.ro except this call to pup_fast, which means there's nothing actually preventing userspace from writing to this. Which means you can just read-only mmap any file you want, userptr it and then write to it with the gpu. Not good.

The right way to handle this is FOLL_WRITE | FOLL_FORCE, which will break any COW mappings and update tracking for MAY_WRITE mappings so there's no exploit and the vm isn't confused about what's going on. For any legit use case there's no difference from what userspace can observe and do.

Reviewed-by Lucas Stach <[email protected]>

Cc John Hubbard <[email protected]>

Signed-off-by Daniel Vetter <[email protected]>

Cc Lucas Stach <[email protected]>

Cc Russell King <[email protected]>

Cc Christian Gmeiner <[email protected]>

Link https://patchwork.freedesktop.org/patch/msgid/[email protected]

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/gpu/drm/etnaviv/etnaviv_gem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/gpu/drm/etnaviv/etnaviv_gem.c +1 -1

@@ -675,7 +675,7 @@ static int etnaviv_gem_userptr_get_pages
 		struct page **pages = pvec + pinned;
 
 		ret = pin_user_pages_fast(ptr, num_pages,
-					  !userptr->ro ? FOLL_WRITE : 0, pages);
+					  FOLL_WRITE | FOLL_FORCE, pages);
 		if (ret < 0) {
 			unpin_user_pages(pvec, pinned);
 			kvfree(pvec);

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #85 lore raw

PATCH 85/221 drm/amd/pm: workaround for audio noise issue

From: Kenneth Feng <[email protected]>

commit 9d03730ecbc5afabfda26d4dbb014310bc4ea4d9 upstream.

On some Intel platforms, audio noise can be detected due to high pcie speed switch latency.
This patch leaverages ppfeaturemask to fix to the highest pcie speed then disable pcie switching.

v2:
coding style fix

Signed-off-by Kenneth Feng <[email protected]>

Reviewed-by Alex Deucher <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c   |   54 +++++++++++++
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c |   74 +++++++++++++++---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c |   24 +++++
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c |   25 ++++++
 4 files changed, 166 insertions(+), 11 deletions(-)

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c +54 -0

@@ -524,6 +524,48 @@ static int smu7_force_switch_to_arbf0(st
 			tmp, MC_CG_ARB_FREQ_F0);
 }
 
+static uint16_t smu7_override_pcie_speed(struct pp_hwmgr *hwmgr)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
+	uint16_t pcie_gen = 0;
+
+	if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4 &&
+	    adev->pm.pcie_gen_mask & CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4)
+		pcie_gen = 3;
+	else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 &&
+		adev->pm.pcie_gen_mask & CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3)
+		pcie_gen = 2;
+	else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 &&
+		adev->pm.pcie_gen_mask & CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2)
+		pcie_gen = 1;
+	else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 &&
+		adev->pm.pcie_gen_mask & CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1)
+		pcie_gen = 0;
+
+	return pcie_gen;
+}
+
+static uint16_t smu7_override_pcie_width(struct pp_hwmgr *hwmgr)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
+	uint16_t pcie_width = 0;
+
+	if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X16)
+		pcie_width = 16;
+	else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X12)
+		pcie_width = 12;
+	else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X8)
+		pcie_width = 8;
+	else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X4)
+		pcie_width = 4;
+	else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X2)
+		pcie_width = 2;
+	else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X1)
+		pcie_width = 1;
+
+	return pcie_width;
+}
+
 static int smu7_setup_default_pcie_table(struct pp_hwmgr *hwmgr)
 {
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

@@ -620,6 +662,11 @@ static int smu7_setup_default_pcie_table
 					PP_Min_PCIEGen),
 			get_pcie_lane_support(data->pcie_lane_cap,
 					PP_Max_PCIELane));
+
+		if (data->pcie_dpm_key_disabled)
+			phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table,
+				data->dpm_table.pcie_speed_table.count,
+				smu7_override_pcie_speed(hwmgr), smu7_override_pcie_width(hwmgr));
 	}
 	return 0;
 }

@@ -1180,6 +1227,13 @@ static int smu7_start_dpm(struct pp_hwmg
 						NULL)),
 				"Failed to enable pcie DPM during DPM Start Function!",
 				return -EINVAL);
+	} else {
+		PP_ASSERT_WITH_CODE(
+				(0 == smum_send_msg_to_smc(hwmgr,
+						PPSMC_MSG_PCIeDPM_Disable,
+						NULL)),
+				"Failed to disble pcie DPM during DPM Start Function!",
+				return -EINVAL);
 	}
 
 	if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c +63 ~~-11~~

118 lines not on this page · raw message

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c +24 -0

@@ -133,6 +133,7 @@ static void vega12_set_default_registry_
 	data->registry_data.auto_wattman_debug = 0;
 	data->registry_data.auto_wattman_sample_period = 100;
 	data->registry_data.auto_wattman_threshold = 50;
+	data->registry_data.pcie_dpm_key_disabled = !(hwmgr->feature_mask & PP_PCIE_DPM_MASK);
 }
 
 static int vega12_set_features_platform_caps(struct pp_hwmgr *hwmgr)

@@ -539,6 +540,29 @@ static int vega12_override_pcie_paramete
 		pp_table->PcieLaneCount[i] = pcie_width_arg;
 	}
 
+	/* override to the highest if it's disabled from ppfeaturmask */
+	if (data->registry_data.pcie_dpm_key_disabled) {
+		for (i = 0; i < NUM_LINK_LEVELS; i++) {
+			smu_pcie_arg = (i << 16) | (pcie_gen << 8) | pcie_width;
+			ret = smum_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_OverridePcieParameters, smu_pcie_arg,
+				NULL);
+			PP_ASSERT_WITH_CODE(!ret,
+				"[OverridePcieParameters] Attempt to override pcie params failed!",
+				return ret);
+
+			pp_table->PcieGenSpeed[i] = pcie_gen;
+			pp_table->PcieLaneCount[i] = pcie_width;
+		}
+		ret = vega12_enable_smc_features(hwmgr,
+				false,
+				data->smu_features[GNLD_DPM_LINK].smu_feature_bitmap);
+		PP_ASSERT_WITH_CODE(!ret,
+				"Attempt to Disable DPM LINK Failed!",
+				return ret);
+		data->smu_features[GNLD_DPM_LINK].enabled = false;
+		data->smu_features[GNLD_DPM_LINK].supported = false;
+	}
 	return 0;
 }

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c +25 -0

@@ -171,6 +171,7 @@ static void vega20_set_default_registry_
 	data->registry_data.gfxoff_controlled_by_driver = 1;
 	data->gfxoff_allowed = false;
 	data->counter_gfxoff = 0;
+	data->registry_data.pcie_dpm_key_disabled = !(hwmgr->feature_mask & PP_PCIE_DPM_MASK);
 }
 
 static int vega20_set_features_platform_caps(struct pp_hwmgr *hwmgr)

@@ -885,6 +886,30 @@ static int vega20_override_pcie_paramete
 		pp_table->PcieLaneCount[i] = pcie_width_arg;
 	}
 
+	/* override to the highest if it's disabled from ppfeaturmask */
+	if (data->registry_data.pcie_dpm_key_disabled) {
+		for (i = 0; i < NUM_LINK_LEVELS; i++) {
+			smu_pcie_arg = (i << 16) | (pcie_gen << 8) | pcie_width;
+			ret = smum_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_OverridePcieParameters, smu_pcie_arg,
+				NULL);
+			PP_ASSERT_WITH_CODE(!ret,
+				"[OverridePcieParameters] Attempt to override pcie params failed!",
+				return ret);
+
+			pp_table->PcieGenSpeed[i] = pcie_gen;
+			pp_table->PcieLaneCount[i] = pcie_width;
+		}
+		ret = vega20_enable_smc_features(hwmgr,
+				false,
+				data->smu_features[GNLD_DPM_LINK].smu_feature_bitmap);
+		PP_ASSERT_WITH_CODE(!ret,
+				"Attempt to Disable DPM LINK Failed!",
+				return ret);
+		data->smu_features[GNLD_DPM_LINK].enabled = false;
+		data->smu_features[GNLD_DPM_LINK].supported = false;
+	}
+
 	return 0;
 }

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #86 lore raw

PATCH 86/221 drm/amdgpu/display: restore AUX_DPHY_TX_CONTROL for DCN2.x

Bug https://gitlab.freedesktop.org/drm/amd/-/issues/1426

From: Alex Deucher <[email protected]>

commit 5c458585c0141754cdcbf25feebb547dd671b559 upstream.

Commit 098214999c8f added fetching of the AUX_DPHY register values from the vbios, but it also changed the default values in the case when there are no values in the vbios. This causes problems with displays with high refresh rates. To fix this, switch back to the original default value for AUX_DPHY_TX_CONTROL.

Fixes 098214999c8f ("drm/amd/display: Read VBIOS Golden Settings Tbl")

Reviewed-by Harry Wentland <[email protected]>

Cc Igor Kravchenko <[email protected]>

Cc Aric Cyr <[email protected]>

Cc Aurabindo Pillai <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c +1 -2

@@ -341,8 +341,7 @@ void enc2_hw_init(struct link_encoder *e
 	} else {
 		AUX_REG_WRITE(AUX_DPHY_RX_CONTROL0, 0x103d1110);
 
-		AUX_REG_WRITE(AUX_DPHY_TX_CONTROL, 0x21c4d);
-
+		AUX_REG_WRITE(AUX_DPHY_TX_CONTROL, 0x21c7a);
 	}
 
 	//AUX_DPHY_TX_REF_CONTROL'AUX_TX_REF_DIV HW default is 0x32;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #87 lore raw

PATCH 87/221 drm/amdgpu: Add additional Sienna Cichlid PCI ID

From: Alex Deucher <[email protected]>

commit c933b111094f2818571fc51b81b98ee0d370c035 upstream.

Add new DID.

Reviewed-by Guchun Chen <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c |    1 +
 1 file changed, 1 insertion(+)

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +1 -0

@@ -1093,6 +1093,7 @@ static const struct pci_device_id pciidl
 	{0x1002, 0x73A3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SIENNA_CICHLID},
 	{0x1002, 0x73AB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SIENNA_CICHLID},
 	{0x1002, 0x73AE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SIENNA_CICHLID},
+	{0x1002, 0x73AF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SIENNA_CICHLID},
 	{0x1002, 0x73BF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SIENNA_CICHLID},
 
 	{0, 0, 0}

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #88 lore raw

PATCH 88/221 drm/i915: Fix the GT fence revocation runtime PM logic

Link https://patchwork.freedesktop.org/patch/msgid/[email protected]

From: Imre Deak <[email protected]>

commit 8840e3bd981f128846b01c12d3966d115e8617c9 upstream.

To optimize some task deferring it until runtime resume unless someone holds a runtime PM reference (because in this case the task can be done w/o the overhead of runtime resume), we have to use the runtime PM get-if-active logic: If the runtime PM usage count is 0 (and so get-if-in-use would return false) the runtime suspend handler is not necessarily called yet (it could be just pending), so the device is not necessarily powered down, and so the runtime resume handler is not guaranteed to be called.

The fence revocation depends on the above deferral, so add a get-if-active helper and use it during fence revocation.

v2:
- Add code comment explaining the fence reg programming deferral logic to i915_vma_revoke_fence(). (Chris)
- Add Cc: stable and Fixes: tags. (Chris)
- Fix the function docbook comment.

Cc Chris Wilson <[email protected]>

Cc <[email protected]> # v4.12+

Fixes 181df2d458f3 ("drm/i915: Take rpm wakelock for releasing the fence on unbind")

Reviewed-by Chris Wilson <[email protected]>

Signed-off-by Imre Deak <[email protected]>

(cherry picked from commit 9d58aa46291d4d696bb1eac3436d3118f7bf2573)

Signed-off-by Rodrigo Vivi <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c |   13 +++++++++++-
 drivers/gpu/drm/i915/intel_runtime_pm.c      |   29 ++++++++++++++++++++++-----
 drivers/gpu/drm/i915/intel_runtime_pm.h      |    5 ++++
 3 files changed, 41 insertions(+), 6 deletions(-)

drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c +12 -1

@@ -316,7 +316,18 @@ void i915_vma_revoke_fence(struct i915_v
 	WRITE_ONCE(fence->vma, NULL);
 	vma->fence = NULL;
 
-	with_intel_runtime_pm_if_in_use(fence_to_uncore(fence)->rpm, wakeref)
+	/*
+	 * Skip the write to HW if and only if the device is currently
+	 * suspended.
+	 *
+	 * If the driver does not currently hold a wakeref (if_in_use == 0),
+	 * the device may currently be runtime suspended, or it may be woken
+	 * up before the suspend takes place. If the device is not suspended
+	 * (powered down) and we skip clearing the fence register, the HW is
+	 * left in an undefined state where we may end up with multiple
+	 * registers overlapping.
+	 */
+	with_intel_runtime_pm_if_active(fence_to_uncore(fence)->rpm, wakeref)
 		fence_write(fence);
 }

drivers/gpu/drm/i915/intel_runtime_pm.c +24 -5

@@ -412,12 +412,20 @@ intel_wakeref_t intel_runtime_pm_get(str
 }
 
 /**
- * intel_runtime_pm_get_if_in_use - grab a runtime pm reference if device in use
+ * __intel_runtime_pm_get_if_active - grab a runtime pm reference if device is active
  * @rpm: the intel_runtime_pm structure
+ * @ignore_usecount: get a ref even if dev->power.usage_count is 0
  *
  * This function grabs a device-level runtime pm reference if the device is
- * already in use and ensures that it is powered up. It is illegal to try
- * and access the HW should intel_runtime_pm_get_if_in_use() report failure.
+ * already active and ensures that it is powered up. It is illegal to try
+ * and access the HW should intel_runtime_pm_get_if_active() report failure.
+ *
+ * If @ignore_usecount=true, a reference will be acquired even if there is no
+ * user requiring the device to be powered up (dev->power.usage_count == 0).
+ * If the function returns false in this case then it's guaranteed that the
+ * device's runtime suspend hook has been called already or that it will be
+ * called (and hence it's also guaranteed that the device's runtime resume
+ * hook will be called eventually).
  *
  * Any runtime pm reference obtained by this function must have a symmetric
  * call to intel_runtime_pm_put() to release the reference again.

@@ -425,7 +433,8 @@ intel_wakeref_t intel_runtime_pm_get(str
  * Returns: the wakeref cookie to pass to intel_runtime_pm_put(), evaluates
  * as True if the wakeref was acquired, or False otherwise.
  */
-intel_wakeref_t intel_runtime_pm_get_if_in_use(struct intel_runtime_pm *rpm)
+static intel_wakeref_t __intel_runtime_pm_get_if_active(struct intel_runtime_pm *rpm,
+							bool ignore_usecount)
 {
 	if (IS_ENABLED(CONFIG_PM)) {
 		/*

@@ -434,7 +443,7 @@ intel_wakeref_t intel_runtime_pm_get_if_
 		 * function, since the power state is undefined. This applies
 		 * atm to the late/early system suspend/resume handlers.
 		 */
-		if (pm_runtime_get_if_in_use(rpm->kdev) <= 0)
+		if (pm_runtime_get_if_active(rpm->kdev, ignore_usecount) <= 0)
 			return 0;
 	}

@@ -443,6 +452,16 @@ intel_wakeref_t intel_runtime_pm_get_if_
 	return track_intel_runtime_pm_wakeref(rpm);
 }
 
+intel_wakeref_t intel_runtime_pm_get_if_in_use(struct intel_runtime_pm *rpm)
+{
+	return __intel_runtime_pm_get_if_active(rpm, false);
+}
+
+intel_wakeref_t intel_runtime_pm_get_if_active(struct intel_runtime_pm *rpm)
+{
+	return __intel_runtime_pm_get_if_active(rpm, true);
+}
+
 /**
  * intel_runtime_pm_get_noresume - grab a runtime pm reference
  * @rpm: the intel_runtime_pm structure

drivers/gpu/drm/i915/intel_runtime_pm.h +5 -0

@@ -177,6 +177,7 @@ void intel_runtime_pm_driver_release(str
 
 intel_wakeref_t intel_runtime_pm_get(struct intel_runtime_pm *rpm);
 intel_wakeref_t intel_runtime_pm_get_if_in_use(struct intel_runtime_pm *rpm);
+intel_wakeref_t intel_runtime_pm_get_if_active(struct intel_runtime_pm *rpm);
 intel_wakeref_t intel_runtime_pm_get_noresume(struct intel_runtime_pm *rpm);
 intel_wakeref_t intel_runtime_pm_get_raw(struct intel_runtime_pm *rpm);

@@ -188,6 +189,10 @@ intel_wakeref_t intel_runtime_pm_get_raw
 	for ((wf) = intel_runtime_pm_get_if_in_use(rpm); (wf); \
 	     intel_runtime_pm_put((rpm), (wf)), (wf) = 0)
 
+#define with_intel_runtime_pm_if_active(rpm, wf) \
+	for ((wf) = intel_runtime_pm_get_if_active(rpm); (wf); \
+	     intel_runtime_pm_put((rpm), (wf)), (wf) = 0)
+
 void intel_runtime_pm_put_unchecked(struct intel_runtime_pm *rpm);
 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
 void intel_runtime_pm_put(struct intel_runtime_pm *rpm, intel_wakeref_t wref);

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #89 lore raw

PATCH 89/221 dm verity: fix DM_VERITY_OPTS_MAX value

From: JeongHyeon Lee <[email protected]>

commit 160f99db943224e55906dd83880da1a704c6e6b9 upstream.

Three optional parameters must be accepted at once in a DM verity table, e.g.:
(verity_error_handling_mode) (ignore_zero_block) (check_at_most_once)
Fix this to be possible by incrementing DM_VERITY_OPTS_MAX.

Signed-off-by JeongHyeon Lee <[email protected]>

Fixes 843f38d382b1 ("dm verity: add 'check_at_most_once' option to only validate hashes once")

Signed-off-by Mike Snitzer <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/md/dm-verity-target.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/md/dm-verity-target.c +1 -1

@@ -34,7 +34,7 @@
 #define DM_VERITY_OPT_IGN_ZEROES	"ignore_zero_blocks"
 #define DM_VERITY_OPT_AT_MOST_ONCE	"check_at_most_once"
 
-#define DM_VERITY_OPTS_MAX		(2 + DM_VERITY_OPTS_FEC + \
+#define DM_VERITY_OPTS_MAX		(3 + DM_VERITY_OPTS_FEC + \
 					 DM_VERITY_ROOT_HASH_VERIFICATION_OPTS)
 
 static unsigned dm_verity_prefetch_cluster = DM_VERITY_DEFAULT_PREFETCH_SIZE;

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #90 lore raw

PATCH 90/221 dm ioctl: fix out of bounds array access when no devices

From: Mikulas Patocka <[email protected]>

commit 4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7a upstream.

If there are not any dm devices, we need to zero the "dev" argument in the first structure dm_name_list. However, this can cause out of bounds write, because the "needed" variable is zero and len may be less than eight.

Fix this bug by reporting DM_BUFFER_FULL_FLAG if the result buffer is too small to hold the "nl->dev" value.

Signed-off-by Mikulas Patocka <[email protected]>

Reported-by Dan Carpenter <[email protected]>

Signed-off-by Mike Snitzer <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/md/dm-ioctl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/md/dm-ioctl.c +1 -1

@@ -529,7 +529,7 @@ static int list_devices(struct file *fil
 	 * Grab our output buffer.
 	 */
 	nl = orig_nl = get_result_buffer(param, param_size, &len);
-	if (len < needed) {
+	if (len < needed || len < sizeof(nl->dev)) {
 		param->flags |= DM_BUFFER_FULL_FLAG;
 		goto out;
 	}

Greg Kroah-Hartman

author maintainer

2021-03-29 08:21 UTC #91 lore raw

PATCH 91/221 bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD

From: Grygorii Strashko <[email protected]>

[ Upstream commit 7d7275b3e866cf8092bd12553ec53ba26864f7bb ]

The main purpose of l3 IRQs is to catch OCP bus access errors and identify corresponding code places by showing call stack, so it's important to handle L3 interconnect errors as fast as possible. On RT these IRQs will became threaded and will be scheduled much more late from the moment actual error occurred so showing completely useless information.

Hence, mark l3 IRQs as IRQF_NO_THREAD so they will not be forced threaded on RT or if force_irqthreads = true.

Fixes 0ee7261c9212 ("drivers: bus: Move the OMAP interconnect driver to drivers/bus/")

Signed-off-by Grygorii Strashko <[email protected]>

Signed-off-by Tony Lindgren <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/bus/omap_l3_noc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

drivers/bus/omap_l3_noc.c +2 -2

index b040447575ad..dcfb32ee5cb6 100644
@@ -285,7 +285,7 @@ static int omap_l3_probe(struct platform_device *pdev)
 	 */
 	l3->debug_irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(l3->dev, l3->debug_irq, l3_interrupt_handler,
-			       0x0, "l3-dbg-irq", l3);
+			       IRQF_NO_THREAD, "l3-dbg-irq", l3);
 	if (ret) {
 		dev_err(l3->dev, "request_irq failed for %d\n",
 			l3->debug_irq);

@@ -294,7 +294,7 @@ static int omap_l3_probe(struct platform_device *pdev)
 
 	l3->app_irq = platform_get_irq(pdev, 1);
 	ret = devm_request_irq(l3->dev, l3->app_irq, l3_interrupt_handler,
-			       0x0, "l3-app-irq", l3);
+			       IRQF_NO_THREAD, "l3-app-irq", l3);
 	if (ret)
 		dev_err(l3->dev, "request_irq failed for %d\n", l3->app_irq);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #92 lore raw

PATCH 92/221 ARM: OMAP2+: Fix smartreflex init regression after dropping legacy data

From: Tony Lindgren <[email protected]>

[ Upstream commit fbfa463be8dc7957ee4f81556e9e1ea2a951807d ]

When I dropped legacy data for omap4 and dra7 smartreflex in favor of device tree based data, it seems I only testd for the "SmartReflex Class3 initialized" line in dmesg. I missed the fact that there is also omap_devinit_smartreflex() that happens later, and now it produces an error on boot for "No Voltage table for the corresponding vdd. Cannot create debugfs entries for n-values".

This happens as we no longer have the smartreflex instance legacy data, and have not yet moved completely to device tree based booting for the driver. Let's fix the issue by changing the smartreflex init to use names. This should all eventually go away in favor of doing the init in the driver based on devicetree compatible value.

Note that dra7xx_init_early() is not calling any voltage domain init like omap54xx_voltagedomains_init(), or a dra7 specific voltagedomains init. This means that on dra7 smartreflex is still not fully initialized, and also seems to be missing the related devicetree nodes.

Fixes a6b1e717e942 ("ARM: OMAP2+: Drop legacy platform data for omap4 smartreflex")

Fixes e54740b4afe8 ("ARM: OMAP2+: Drop legacy platform data for dra7 smartreflex")

Signed-off-by Tony Lindgren <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 arch/arm/mach-omap2/sr_device.c | 75 +++++++++++++++++++++++++--------
 1 file changed, 58 insertions(+), 17 deletions(-)

arch/arm/mach-omap2/sr_device.c +58 ~~-17~~

index 62df666c2bd0..17b66f0d0dee 100644
@@ -88,34 +88,26 @@ static void __init sr_set_nvalues(struct omap_volt_data *volt_data,
 
 extern struct omap_sr_data omap_sr_pdata[];
 
-static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
+static int __init sr_init_by_name(const char *name, const char *voltdm)
 {
 	struct omap_sr_data *sr_data = NULL;
 	struct omap_volt_data *volt_data;
-	struct omap_smartreflex_dev_attr *sr_dev_attr;
 	static int i;
 
-	if (!strncmp(oh->name, "smartreflex_mpu_iva", 20) ||
-	    !strncmp(oh->name, "smartreflex_mpu", 16))
+	if (!strncmp(name, "smartreflex_mpu_iva", 20) ||
+	    !strncmp(name, "smartreflex_mpu", 16))
 		sr_data = &omap_sr_pdata[OMAP_SR_MPU];
-	else if (!strncmp(oh->name, "smartreflex_core", 17))
+	else if (!strncmp(name, "smartreflex_core", 17))
 		sr_data = &omap_sr_pdata[OMAP_SR_CORE];
-	else if (!strncmp(oh->name, "smartreflex_iva", 16))
+	else if (!strncmp(name, "smartreflex_iva", 16))
 		sr_data = &omap_sr_pdata[OMAP_SR_IVA];
 
 	if (!sr_data) {
-		pr_err("%s: Unknown instance %s\n", __func__, oh->name);
+		pr_err("%s: Unknown instance %s\n", __func__, name);
 		return -EINVAL;
 	}
 
-	sr_dev_attr = (struct omap_smartreflex_dev_attr *)oh->dev_attr;
-	if (!sr_dev_attr || !sr_dev_attr->sensor_voltdm_name) {
-		pr_err("%s: No voltage domain specified for %s. Cannot initialize\n",
-		       __func__, oh->name);
-		goto exit;
-	}
-
-	sr_data->name = oh->name;
+	sr_data->name = name;
 	if (cpu_is_omap343x())
 		sr_data->ip_type = 1;
 	else

@@ -136,10 +128,10 @@ static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
 		}
 	}
 
-	sr_data->voltdm = voltdm_lookup(sr_dev_attr->sensor_voltdm_name);
+	sr_data->voltdm = voltdm_lookup(voltdm);
 	if (!sr_data->voltdm) {
 		pr_err("%s: Unable to get voltage domain pointer for VDD %s\n",
-			__func__, sr_dev_attr->sensor_voltdm_name);
+			__func__, voltdm);
 		goto exit;
 	}

@@ -160,6 +152,20 @@ exit:
 	return 0;
 }
 
+static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
+{
+	struct omap_smartreflex_dev_attr *sr_dev_attr;
+
+	sr_dev_attr = (struct omap_smartreflex_dev_attr *)oh->dev_attr;
+	if (!sr_dev_attr || !sr_dev_attr->sensor_voltdm_name) {
+		pr_err("%s: No voltage domain specified for %s. Cannot initialize\n",
+		       __func__, oh->name);
+		return 0;
+	}
+
+	return sr_init_by_name(oh->name, sr_dev_attr->sensor_voltdm_name);
+}
+
 /*
  * API to be called from board files to enable smartreflex
  * autocompensation at init.

@@ -169,7 +175,42 @@ void __init omap_enable_smartreflex_on_init(void)
 	sr_enable_on_init = true;
 }
 
+static const char * const omap4_sr_instances[] = {
+	"mpu",
+	"iva",
+	"core",
+};
+
+static const char * const dra7_sr_instances[] = {
+	"mpu",
+	"core",
+};
+
 int __init omap_devinit_smartreflex(void)
 {
+	const char * const *sr_inst;
+	int i, nr_sr = 0;
+
+	if (soc_is_omap44xx()) {
+		sr_inst = omap4_sr_instances;
+		nr_sr = ARRAY_SIZE(omap4_sr_instances);
+
+	} else if (soc_is_dra7xx()) {
+		sr_inst = dra7_sr_instances;
+		nr_sr = ARRAY_SIZE(dra7_sr_instances);
+	}
+
+	if (nr_sr) {
+		const char *name, *voltdm;
+
+		for (i = 0; i < nr_sr; i++) {
+			name = kasprintf(GFP_KERNEL, "smartreflex_%s", sr_inst[i]);
+			voltdm = sr_inst[i];
+			sr_init_by_name(name, voltdm);
+		}
+
+		return 0;
+	}
+
 	return omap_hwmod_for_each_by_class("smartreflex", sr_dev_init, NULL);
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #93 lore raw

PATCH 93/221 soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva

From: Tony Lindgren <[email protected]>

[ Upstream commit effe89e40037038db7711bdab5d3401fe297d72c ]

On reset deassert, we must wait a bit after the rstst bit change before we allow clockdomain autoidle again. Otherwise we get the following oops sometimes on dra7 with iva:

Unhandled fault: imprecise external abort (0x1406) at 0x00000000 44000000.ocp:L3 Standard Error: MASTER MPU TARGET IVA_CONFIG (Read Link):
At Address: 0x0005A410 : Data Access in User mode during Functional access

Internal error: : 1406 [#1] SMP ARM

...
(sysc_write_sysconfig) from [<c0782cb0>] (sysc_enable_module+0xcc/0x260) (sysc_enable_module) from [<c0782f0c>] (sysc_runtime_resume+0xc8/0x174) (sysc_runtime_resume) from [<c0a3e1ac>] (genpd_runtime_resume+0x94/0x224) (genpd_runtime_resume) from [<c0a33f0c>] (__rpm_callback+0xd8/0x180)

It is unclear what all devices this might affect, but presumably other devices with the rstst bit too can be affected. So let's just enable the delay for all the devices with rstst bit for now. Later on we may want to limit the list to the know affected devices if needed.

Fixes d30cd83f6853 ("soc: ti: omap-prm: add support for denying idle for reset clockdomain")

Reported-by Yongqin Liu <[email protected]>

Signed-off-by Tony Lindgren <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/soc/ti/omap_prm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

drivers/soc/ti/omap_prm.c +5 -1

index c8b14b3a171f..fb067b5e4a97 100644
@@ -522,8 +522,12 @@ static int omap_reset_deassert(struct reset_controller_dev *rcdev,
 		       reset->prm->data->name, id);
 
 exit:
-	if (reset->clkdm)
+	if (reset->clkdm) {
+		/* At least dra7 iva needs a delay before clkdm idle */
+		if (has_rstst)
+			udelay(1);
 		pdata->clkdm_allow_idle(reset->clkdm);
+	}
 
 	return ret;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #94 lore raw

PATCH 94/221 veth: Store queue_mapping independently of XDP prog presence

From: Maciej Fijalkowski <[email protected]>

[ Upstream commit edbea922025169c0e5cdca5ebf7bf5374cc5566c ]

Currently, veth_xmit() would call the skb_record_rx_queue() only when there is XDP program loaded on peer interface in native mode.

If peer has XDP prog in generic mode, then netif_receive_generic_xdp() has a call to netif_get_rxqueue(skb), so for multi-queue veth it will not be possible to grab a correct rxq.

To fix that, store queue_mapping independently of XDP prog presence on peer interface.

Fixes 638264dc9022 ("veth: Support per queue XDP ring")

Signed-off-by Maciej Fijalkowski <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Acked-by Toshiaki Makita <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/veth.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

drivers/net/veth.c +1 -2

index 8c737668008a..be18b243642f 100644
@@ -301,8 +301,7 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (rxq < rcv->real_num_rx_queues) {
 		rq = &rcv_priv->rq[rxq];
 		rcv_xdp = rcu_access_pointer(rq->xdp_prog);
-		if (rcv_xdp)
-			skb_record_rx_queue(skb, rxq);
+		skb_record_rx_queue(skb, rxq);
 	}
 
 	skb_tx_timestamp(skb);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #95 lore raw

PATCH 95/221 bpf: Change inode_storages lookup_elem return value from NULL to -EBADF

From: Tal Lossos <[email protected]>

[ Upstream commit 769c18b254ca191b45047e1fcb3b2ce56fada0b6 ]

bpf_fd_inode_storage_lookup_elem() returned NULL when getting a bad FD, which caused -ENOENT in bpf_map_copy_value. -EBADF error is better than -ENOENT for a bad FD behaviour.

The patch was partially contributed by CyberArk Software, Inc.

Fixes 8ea636848aca ("bpf: Implement bpf_local_storage for inodes")

Signed-off-by Tal Lossos <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Acked-by Yonghong Song <[email protected]>

Acked-by KP Singh <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 kernel/bpf/bpf_inode_storage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

kernel/bpf/bpf_inode_storage.c +1 -1

index c2a501cd90eb..a4ac48c7dada 100644
@@ -109,7 +109,7 @@ static void *bpf_fd_inode_storage_lookup_elem(struct bpf_map *map, void *key)
 	fd = *(int *)key;
 	f = fget_raw(fd);
 	if (!f)
-		return NULL;
+		return ERR_PTR(-EBADF);
 
 	sdata = inode_storage_lookup(f->f_inode, map, true);
 	fput(f);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #96 lore raw

PATCH 96/221 libbpf: Fix INSTALL flag order

[0] https://github.com/openwrt/openwrt/pull/3959

From: Georgi Valkov <[email protected]>

[ Upstream commit e7fb6465d4c8e767e39cbee72464e0060ab3d20c ]

It was reported ([0]) that having optional -m flag between source and destination arguments in install command breaks bpftools cross-build on MacOS. Move -m to the front to fix this issue.

Fixes 7110d80d53f4 ("libbpf: Makefile set specified permission mode")

Signed-off-by Georgi Valkov <[email protected]>

Signed-off-by Andrii Nakryiko <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 tools/lib/bpf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

tools/lib/bpf/Makefile +1 -1

index 55bd78b3496f..310f647c2d5b 100644
@@ -236,7 +236,7 @@ define do_install
 	if [ ! -d '$(DESTDIR_SQ)$2' ]; then		\
 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2';	\
 	fi;						\
-	$(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR_SQ)$2'
+	$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
 endef
 
 install_lib: all_cmd

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #97 lore raw

PATCH 97/221 net/mlx5e: RX, Mind the MPWQE gaps when calculating offsets

From: Tariq Toukan <[email protected]>

[ Upstream commit d5dd03b26ba49c4ffe67ee1937add82293c19794 ]

Since cited patch, MLX5E_REQUIRED_WQE_MTTS is not a power of two. Hence, usage of MLX5E_LOG_ALIGNED_MPWQE_PPW should be replaced, as it lost some accuracy. Use the designated macro to calculate the number of required MTTs.

This makes sure the solution in cited patch works properly.

While here, un-inline mlx5e_get_mpwqe_offset(), and remove the unused RQ parameter.

Fixes c3c9402373fe ("net/mlx5e: Add resiliency in Striding RQ mode for packets larger than MTU")

Signed-off-by Tariq Toukan <[email protected]>

Signed-off-by Saeed Mahameed <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/mellanox/mlx5/core/en.h      | 7 ++++---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 6 +++---
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c   | 4 ++--
 3 files changed, 9 insertions(+), 8 deletions(-)

drivers/net/ethernet/mellanox/mlx5/core/en.h +4 -3

index 2f05b0f9de01..9da34f82d466 100644
@@ -90,14 +90,15 @@ struct page_pool;
 				    MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT : 0)
 #define MLX5_MPWRQ_PAGES_PER_WQE		BIT(MLX5_MPWRQ_WQE_PAGE_ORDER)
 
-#define MLX5_MTT_OCTW(npages) (ALIGN(npages, 8) / 2)
+#define MLX5_ALIGN_MTTS(mtts)		(ALIGN(mtts, 8))
+#define MLX5_ALIGNED_MTTS_OCTW(mtts)	((mtts) / 2)
+#define MLX5_MTT_OCTW(mtts)		(MLX5_ALIGNED_MTTS_OCTW(MLX5_ALIGN_MTTS(mtts)))
 /* Add another page to MLX5E_REQUIRED_WQE_MTTS as a buffer between
  * WQEs, This page will absorb write overflow by the hardware, when
  * receiving packets larger than MTU. These oversize packets are
  * dropped by the driver at a later stage.
  */
-#define MLX5E_REQUIRED_WQE_MTTS		(ALIGN(MLX5_MPWRQ_PAGES_PER_WQE + 1, 8))
-#define MLX5E_LOG_ALIGNED_MPWQE_PPW	(ilog2(MLX5E_REQUIRED_WQE_MTTS))
+#define MLX5E_REQUIRED_WQE_MTTS		(MLX5_ALIGN_MTTS(MLX5_MPWRQ_PAGES_PER_WQE + 1))
 #define MLX5E_REQUIRED_MTTS(wqes)	(wqes * MLX5E_REQUIRED_WQE_MTTS)
 #define MLX5E_MAX_RQ_NUM_MTTS	\
 	((1 << 16) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */

drivers/net/ethernet/mellanox/mlx5/core/en_main.c +3 -3

index 6394f9d8c685..8b0826d689c0 100644
@@ -303,9 +303,9 @@ static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq
 				     rq->wqe_overflow.addr);
 }
 
-static inline u64 mlx5e_get_mpwqe_offset(struct mlx5e_rq *rq, u16 wqe_ix)
+static u64 mlx5e_get_mpwqe_offset(u16 wqe_ix)
 {
-	return (wqe_ix << MLX5E_LOG_ALIGNED_MPWQE_PPW) << PAGE_SHIFT;
+	return MLX5E_REQUIRED_MTTS(wqe_ix) << PAGE_SHIFT;
 }
 
 static void mlx5e_init_frags_partition(struct mlx5e_rq *rq)

@@ -544,7 +544,7 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 				mlx5_wq_ll_get_wqe(&rq->mpwqe.wq, i);
 			u32 byte_count =
 				rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz;
-			u64 dma_offset = mlx5e_get_mpwqe_offset(rq, i);
+			u64 dma_offset = mlx5e_get_mpwqe_offset(i);
 
 			wqe->data[0].addr = cpu_to_be64(dma_offset + rq->buff.headroom);
 			wqe->data[0].byte_count = cpu_to_be32(byte_count);

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +2 -2

index 6d2ba8b84187..7e1f8660dfec 100644
@@ -506,7 +506,6 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
 	struct mlx5e_icosq *sq = &rq->channel->icosq;
 	struct mlx5_wq_cyc *wq = &sq->wq;
 	struct mlx5e_umr_wqe *umr_wqe;
-	u16 xlt_offset = ix << (MLX5E_LOG_ALIGNED_MPWQE_PPW - 1);
 	u16 pi;
 	int err;
 	int i;

@@ -537,7 +536,8 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
 	umr_wqe->ctrl.opmod_idx_opcode =
 		cpu_to_be32((sq->pc << MLX5_WQE_CTRL_WQE_INDEX_SHIFT) |
 			    MLX5_OPCODE_UMR);
-	umr_wqe->uctrl.xlt_offset = cpu_to_be16(xlt_offset);
+	umr_wqe->uctrl.xlt_offset =
+		cpu_to_be16(MLX5_ALIGNED_MTTS_OCTW(MLX5E_REQUIRED_MTTS(ix)));
 
 	sq->db.wqe_info[pi] = (struct mlx5e_icosq_wqe_info) {
 		.wqe_type   = MLX5E_ICOSQ_WQE_UMR_RX,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #98 lore raw

PATCH 98/221 net/mlx5e: When changing XDP program without reset, take refs for XSK RQs

From: Maxim Mikityanskiy <[email protected]>

[ Upstream commit e5eb01344e9b09bb9d255b9727449186f7168df8 ]

Each RQ (including XSK RQs) takes a reference to the XDP program. When an XDP program is attached or detached, the channels and queues are recreated, however, there is a special flow for changing an active XDP program to another one. In that flow, channels and queues stay alive, but the refcounts of the old and new XDP programs are adjusted. This flow didn't increment refcount by the number of active XSK RQs, and this commit fixes it.

Fixes db05815b36cb ("net/mlx5e: Add XSK zero-copy support")

Signed-off-by Maxim Mikityanskiy <[email protected]>

Reviewed-by Tariq Toukan <[email protected]>

Signed-off-by Saeed Mahameed <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

drivers/net/ethernet/mellanox/mlx5/core/en_main.c +3 -1

index 8b0826d689c0..0dc572aaf177 100644
@@ -4494,8 +4494,10 @@ static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
 		struct mlx5e_channel *c = priv->channels.c[i];
 
 		mlx5e_rq_replace_xdp_prog(&c->rq, prog);
-		if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state))
+		if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) {
+			bpf_prog_inc(prog);
 			mlx5e_rq_replace_xdp_prog(&c->xskrq, prog);
+		}
 	}
 
 unlock:

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #99 lore raw

PATCH 99/221 net/mlx5e: Dont match on Geneve options in case option masks are all zero

From: Maor Dickman <[email protected]>

[ Upstream commit 385d40b042e60aa0b677d7b400a0fefb44bcbaf4 ]

The cited change added offload support for Geneve options without verifying the validity of the options masks, this caused offload of rules with match on Geneve options with class,type and data masks which are zero to fail.

Fix by ignoring the match on Geneve options in case option masks are all zero.

Fixes 9272e3df3023 ("net/mlx5e: Geneve, Add support for encap/decap flows offload")

Signed-off-by Maor Dickman <[email protected]>

Reviewed-by Roi Dayan <[email protected]>

Reviewed-by Oz Shlomo <[email protected]>

Reviewed-by Yevgeny Kliteynik <[email protected]>

Signed-off-by Saeed Mahameed <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c | 4 ++++
 1 file changed, 4 insertions(+)

drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c +4 -0

index e472ed0eacfb..7ed3f9f79f11 100644
@@ -227,6 +227,10 @@ static int mlx5e_tc_tun_parse_geneve_options(struct mlx5e_priv *priv,
 	option_key = (struct geneve_opt *)&enc_opts.key->data[0];
 	option_mask = (struct geneve_opt *)&enc_opts.mask->data[0];
 
+	if (option_mask->opt_class == 0 && option_mask->type == 0 &&
+	    !memchr_inv(option_mask->opt_data, 0, option_mask->length * 4))
+		return 0;
+
 	if (option_key->length > max_tlv_option_data_len) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Matching on GENEVE options: unsupported option len");

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #100 lore raw

PATCH 100/221 ipv6: fix suspecious RCU usage warning

From: Wei Wang <[email protected]>

[ Upstream commit 28259bac7f1dde06d8ba324e222bbec9d4e92f2b ]

Syzbot reported the suspecious RCU usage in nexthop_fib6_nh() when called from ipv6_route_seq_show(). The reason is ipv6_route_seq_start() calls rcu_read_lock_bh(), while nexthop_fib6_nh() calls rcu_dereference_rtnl().
The fix proposed is to add a variant of nexthop_fib6_nh() to use rcu_dereference_bh_rtnl() for ipv6_route_seq_show().

The reported trace is as follows:
./include/net/nexthop.h:416 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.0/17895:

     at: seq_read+0x71/0x12a0 fs/seq_file.c:169
     at: seq_file_net include/linux/seq_file_net.h:19 [inline]
     at: ipv6_route_seq_start+0xaf/0x300 net/ipv6/ip6_fib.c:2616

stack backtrace:
CPU: 1 PID: 17895 Comm: syz-executor.0 Not tainted 4.15.0-syzkaller #0
Call Trace:
 [<ffffffff849edf9e>] __dump_stack lib/dump_stack.c:17 [inline]
 [<ffffffff849edf9e>] dump_stack+0xd8/0x147 lib/dump_stack.c:53
 [<ffffffff8480b7fa>] lockdep_rcu_suspicious+0x153/0x15d kernel/locking/lockdep.c:5745
 [<ffffffff8459ada6>] nexthop_fib6_nh include/net/nexthop.h:416 [inline]
 [<ffffffff8459ada6>] ipv6_route_native_seq_show net/ipv6/ip6_fib.c:2488 [inline]
 [<ffffffff8459ada6>] ipv6_route_seq_show+0x436/0x7a0 net/ipv6/ip6_fib.c:2673
 [<ffffffff81c556df>] seq_read+0xccf/0x12a0 fs/seq_file.c:276
 [<ffffffff81dbc62c>] proc_reg_read+0x10c/0x1d0 fs/proc/inode.c:231
 [<ffffffff81bc28ae>] do_loop_readv_writev fs/read_write.c:714 [inline]
 [<ffffffff81bc28ae>] do_loop_readv_writev fs/read_write.c:701 [inline]
 [<ffffffff81bc28ae>] do_iter_read+0x49e/0x660 fs/read_write.c:935
 [<ffffffff81bc81ab>] vfs_readv+0xfb/0x170 fs/read_write.c:997
 [<ffffffff81c88847>] kernel_readv fs/splice.c:361 [inline]
 [<ffffffff81c88847>] default_file_splice_read+0x487/0x9c0 fs/splice.c:416
 [<ffffffff81c86189>] do_splice_to+0x129/0x190 fs/splice.c:879
 [<ffffffff81c86f66>] splice_direct_to_actor+0x256/0x890 fs/splice.c:951
 [<ffffffff81c8777d>] do_splice_direct+0x1dd/0x2b0 fs/splice.c:1060
 [<ffffffff81bc4747>] do_sendfile+0x597/0xce0 fs/read_write.c:1459
 [<ffffffff81bca205>] SYSC_sendfile64 fs/read_write.c:1520 [inline]
 [<ffffffff81bca205>] SyS_sendfile64+0x155/0x170 fs/read_write.c:1506
 [<ffffffff81015fcf>] do_syscall_64+0x1ff/0x310 arch/x86/entry/common.c:305
 [<ffffffff84a00076>] entry_SYSCALL_64_after_hwframe+0x42/0xb7

Fixes f88d8ea67fbdb ("ipv6: Plumb support for nexthop object in a fib6_info")

Reported-by syzbot <[email protected]>

Signed-off-by Wei Wang <[email protected]>

Cc David Ahern <[email protected]>

Cc Ido Schimmel <[email protected]>

Cc Petr Machata <[email protected]>

Cc Eric Dumazet <[email protected]>

Reviewed-by Ido Schimmel <[email protected]>

Reviewed-by David Ahern <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 include/net/nexthop.h | 24 ++++++++++++++++++++++++
 net/ipv6/ip6_fib.c    |  2 +-
 2 files changed, 25 insertions(+), 1 deletion(-)

include/net/nexthop.h +24 -0

index 2fd76a9b6dc8..4c8c9fe9a3f0 100644
@@ -362,6 +362,7 @@ static inline struct fib_nh *fib_info_nh(struct fib_info *fi, int nhsel)
 int fib6_check_nexthop(struct nexthop *nh, struct fib6_config *cfg,
 		       struct netlink_ext_ack *extack);
 
+/* Caller should either hold rcu_read_lock(), or RTNL. */
 static inline struct fib6_nh *nexthop_fib6_nh(struct nexthop *nh)
 {
 	struct nh_info *nhi;

@@ -382,6 +383,29 @@ static inline struct fib6_nh *nexthop_fib6_nh(struct nexthop *nh)
 	return NULL;
 }
 
+/* Variant of nexthop_fib6_nh().
+ * Caller should either hold rcu_read_lock_bh(), or RTNL.
+ */
+static inline struct fib6_nh *nexthop_fib6_nh_bh(struct nexthop *nh)
+{
+	struct nh_info *nhi;
+
+	if (nh->is_group) {
+		struct nh_group *nh_grp;
+
+		nh_grp = rcu_dereference_bh_rtnl(nh->nh_grp);
+		nh = nexthop_mpath_select(nh_grp, 0);
+		if (!nh)
+			return NULL;
+	}
+
+	nhi = rcu_dereference_bh_rtnl(nh->nh_info);
+	if (nhi->family == AF_INET6)
+		return &nhi->fib6_nh;
+
+	return NULL;
+}
+
 static inline struct net_device *fib6_info_nh_dev(struct fib6_info *f6i)
 {
 	struct fib6_nh *fib6_nh;

net/ipv6/ip6_fib.c +1 -1

index f43e27555725..1fb79dbde0cb 100644
@@ -2485,7 +2485,7 @@ static int ipv6_route_native_seq_show(struct seq_file *seq, void *v)
 	const struct net_device *dev;
 
 	if (rt->nh)
-		fib6_nh = nexthop_fib6_nh(rt->nh);
+		fib6_nh = nexthop_fib6_nh_bh(rt->nh);
 
 	seq_printf(seq, "%pi6 %02x ", &rt->fib6_dst.addr, rt->fib6_dst.plen);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #101 lore raw

PATCH 101/221 drop_monitor: Perform cleanup upon probe registration failure

From: Ido Schimmel <[email protected]>

[ Upstream commit 9398e9c0b1d44eeb700e9e766c02bcc765c82570 ]

In the rare case that drop_monitor fails to register its probe on the 'napi_poll' tracepoint, it will not deactivate its hysteresis timer as part of the error path. If the hysteresis timer was armed by the shortly lived 'kfree_skb' probe and user space retries to initiate tracing, a warning will be emitted for trying to initialize an active object [1].

Fix this by properly undoing all the operations that were done prior to probe registration, in both software and hardware code paths.

Note that syzkaller managed to fail probe registration by injecting a slab allocation failure [2].

[1]
ODEBUG: init active (active state 0) object type: timer_list hint: sched_send_work+0x0/0x60 include/linux/list.h:135

WARNING: CPU: 1 PID: 8649 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 1 PID: 8649 Comm: syz-executor.0 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
[...]
Call Trace:
 __debug_object_init+0x524/0xd10 lib/debugobjects.c:588
 debug_timer_init kernel/time/timer.c:722 [inline]
 debug_init kernel/time/timer.c:770 [inline]
 init_timer_key+0x2d/0x340 kernel/time/timer.c:814
 net_dm_trace_on_set net/core/drop_monitor.c:1111 [inline]
 set_all_monitor_traces net/core/drop_monitor.c:1188 [inline]
 net_dm_monitor_start net/core/drop_monitor.c:1295 [inline]
 net_dm_cmd_trace+0x720/0x1220 net/core/drop_monitor.c:1339
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2348
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2402
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2435
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

[2]
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1

 CPU: 1 PID: 8645 Comm: syz-executor.0 Not tainted 5.11.0-syzkaller #0
 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 Call Trace:
  dump_stack+0xfa/0x151
  should_fail.cold+0x5/0xa
  should_failslab+0x5/0x10
  __kmalloc+0x72/0x3f0
  tracepoint_add_func+0x378/0x990
  tracepoint_probe_register+0x9c/0xe0
  net_dm_cmd_trace+0x7fc/0x1220
  genl_family_rcv_msg_doit+0x228/0x320
  genl_rcv_msg+0x328/0x580
  netlink_rcv_skb+0x153/0x420
  genl_rcv+0x24/0x40
  netlink_unicast+0x533/0x7d0
  netlink_sendmsg+0x856/0xd90
  sock_sendmsg+0xcf/0x120
  ____sys_sendmsg+0x6e8/0x810
  ___sys_sendmsg+0xf3/0x170
  __sys_sendmsg+0xe5/0x1b0
  do_syscall_64+0x2d/0x70
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes 70c69274f354 ("drop_monitor: Initialize timer and work item upon tracing enable")

Fixes 8ee2267ad33e ("drop_monitor: Convert to using devlink tracepoint")

Reported-by [email protected]

Signed-off-by Ido Schimmel <[email protected]>

Reviewed-by Jiri Pirko <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/core/drop_monitor.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

net/core/drop_monitor.c +23 -0

index 571f191c06d9..db65ce62b625 100644
@@ -1053,6 +1053,20 @@ static int net_dm_hw_monitor_start(struct netlink_ext_ack *extack)
 	return 0;
 
 err_module_put:
+	for_each_possible_cpu(cpu) {
+		struct per_cpu_dm_data *hw_data = &per_cpu(dm_hw_cpu_data, cpu);
+		struct sk_buff *skb;
+
+		del_timer_sync(&hw_data->send_timer);
+		cancel_work_sync(&hw_data->dm_alert_work);
+		while ((skb = __skb_dequeue(&hw_data->drop_queue))) {
+			struct devlink_trap_metadata *hw_metadata;
+
+			hw_metadata = NET_DM_SKB_CB(skb)->hw_metadata;
+			net_dm_hw_metadata_free(hw_metadata);
+			consume_skb(skb);
+		}
+	}
 	module_put(THIS_MODULE);
 	return rc;
 }

@@ -1134,6 +1148,15 @@ static int net_dm_trace_on_set(struct netlink_ext_ack *extack)
 err_unregister_trace:
 	unregister_trace_kfree_skb(ops->kfree_skb_probe, NULL);
 err_module_put:
+	for_each_possible_cpu(cpu) {
+		struct per_cpu_dm_data *data = &per_cpu(dm_cpu_data, cpu);
+		struct sk_buff *skb;
+
+		del_timer_sync(&data->send_timer);
+		cancel_work_sync(&data->dm_alert_work);
+		while ((skb = __skb_dequeue(&data->drop_queue)))
+			consume_skb(skb);
+	}
 	module_put(THIS_MODULE);
 	return rc;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #102 lore raw

PATCH 102/221 macvlan: macvlan_count_rx() needs to be aware of preemption

From: Eric Dumazet <[email protected]>

[ Upstream commit dd4fa1dae9f4847cc1fd78ca468ad69e16e5db3e ]

macvlan_count_rx() can be called from process context, it is thus necessary to disable preemption before calling u64_stats_update_begin()

syzbot was able to spot this on 32bit arch:

WARNING: CPU: 1 PID: 4632 at include/linux/seqlock.h:271 __seqprop_assert include/linux/seqlock.h:271 [inline]
WARNING: CPU: 1 PID: 4632 at include/linux/seqlock.h:271 __seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 4632 Comm: kworker/1:3 Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events macvlan_process_broadcast
Backtrace:
[<82740468>] (dump_backtrace) from [<827406dc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252)
 r7:00000080 r6:60000093 r5:00000000 r4:8422a3c4

[<827406c4>] (show_stack) from [<82751b58>] (__dump_stack lib/dump_stack.c:79 [inline])
[<827406c4>] (show_stack) from [<82751b58>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120)
[<82751aa0>] (dump_stack) from [<82741270>] (panic+0x130/0x378 kernel/panic.c:231)
r7:830209b4 r6:84069ea4 r5:00000000 r4:844350d0
[<82741140>] (panic) from [<80244924>] (__warn+0xb0/0x164 kernel/panic.c:605)
r3:8404ec8c r2:00000000 r1:00000000 r0:830209b4
r7:0000010f
[<80244874>] (__warn) from [<82741520>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:628)
r7:81363f70 r6:0000010f r5:83018e50 r4:00000000
[<827414bc>] (warn_slowpath_fmt) from [<81363f70>] (__seqprop_assert include/linux/seqlock.h:271 [inline]) [<827414bc>] (warn_slowpath_fmt) from [<81363f70>] (__seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269)
r8:5a109000 r7:0000000f r6:a568dac0 r5:89802300 r4:00000001
[<81363e80>] (__seqprop_assert.constprop.0) from [<81364af0>] (u64_stats_update_begin include/linux/u64_stats_sync.h:128 [inline]) [<81363e80>] (__seqprop_assert.constprop.0) from [<81364af0>] (macvlan_count_rx include/linux/if_macvlan.h:47 [inline]) [<81363e80>] (__seqprop_assert.constprop.0) from [<81364af0>] (macvlan_broadcast+0x154/0x26c drivers/net/macvlan.c:291)
r5:89802300 r4:8a927740
[<8136499c>] (macvlan_broadcast) from [<81365020>] (macvlan_process_broadcast+0x258/0x2d0 drivers/net/macvlan.c:317)
r10:81364f78 r9:8a86d000 r8:8a9c7e7c r7:8413aa5c r6:00000000 r5:00000000
r4:89802840
[<81364dc8>] (macvlan_process_broadcast) from [<802696a4>] (process_one_work+0x2d4/0x998 kernel/workqueue.c:2275)
r10:00000008 r9:8404ec98 r8:84367a02 r7:ddfe6400 r6:ddfe2d40 r5:898dac80
r4:8a86d43c
[<802693d0>] (process_one_work) from [<80269dcc>] (worker_thread+0x64/0x54c kernel/workqueue.c:2421)
r10:00000008 r9:8a9c6000 r8:84006d00 r7:ddfe2d78 r6:898dac94 r5:ddfe2d40
r4:898dac80
[<80269d68>] (worker_thread) from [<80271f40>] (kthread+0x184/0x1a4 kernel/kthread.c:292)
r10:85247e64 r9:898dac80 r8:80269d68 r7:00000000 r6:8a9c6000 r5:89a2ee40
r4:8a97bd00
[<80271dbc>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:158)

Exception stack(0x8a9c7fb0 to 0x8a9c7ff8)

Fixes 412ca1550cbe ("macvlan: Move broadcasts into a work queue")

Cc Herbert Xu <[email protected]>

Reported-by syzbot <[email protected]>

Acked-by Herbert Xu <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 include/linux/if_macvlan.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

include/linux/if_macvlan.h +2 -1

index a367ead4bf4b..e11555989090 100644
@@ -42,13 +42,14 @@ static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
 	if (likely(success)) {
 		struct vlan_pcpu_stats *pcpu_stats;
 
-		pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
+		pcpu_stats = get_cpu_ptr(vlan->pcpu_stats);
 		u64_stats_update_begin(&pcpu_stats->syncp);
 		pcpu_stats->rx_packets++;
 		pcpu_stats->rx_bytes += len;
 		if (multicast)
 			pcpu_stats->rx_multicast++;
 		u64_stats_update_end(&pcpu_stats->syncp);
+		put_cpu_ptr(vlan->pcpu_stats);
 	} else {
 		this_cpu_inc(vlan->pcpu_stats->rx_errors);
 	}

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #103 lore raw

PATCH 103/221 net: sched: validate stab values

From: Eric Dumazet <[email protected]>

[ Upstream commit e323d865b36134e8c5c82c834df89109a5c60dab ]

iproute2 package is well behaved, but malicious user space can provide illegal shift values and trigger UBSAN reports.

Add stab parameter to red_check_params() to validate user input.

syzbot reported:

UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18
shift exponent 111 is too large for 64-bit type 'long unsigned int'
CPU: 1 PID: 14662 Comm: syz-executor.3 Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148
 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:327
 red_calc_qavg_from_idle_time include/net/red.h:312 [inline]
 red_calc_qavg include/net/red.h:353 [inline]
 choke_enqueue.cold+0x18/0x3dd net/sched/sch_choke.c:221
 __dev_xmit_skb net/core/dev.c:3837 [inline]
 __dev_queue_xmit+0x1943/0x2e00 net/core/dev.c:4150
 neigh_hh_output include/net/neighbour.h:499 [inline]
 neigh_output include/net/neighbour.h:508 [inline]
 ip6_finish_output2+0x911/0x1700 net/ipv6/ip6_output.c:117
 __ip6_finish_output net/ipv6/ip6_output.c:182 [inline]
 __ip6_finish_output+0x4c1/0xe10 net/ipv6/ip6_output.c:161
 ip6_finish_output+0x35/0x200 net/ipv6/ip6_output.c:192
 NF_HOOK_COND include/linux/netfilter.h:290 [inline]
 ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:215
 dst_output include/net/dst.h:448 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 NF_HOOK include/linux/netfilter.h:295 [inline]
 ip6_xmit+0x127e/0x1eb0 net/ipv6/ip6_output.c:320
 inet6_csk_xmit+0x358/0x630 net/ipv6/inet6_connection_sock.c:135
 dccp_transmit_skb+0x973/0x12c0 net/dccp/output.c:138
 dccp_send_reset+0x21b/0x2b0 net/dccp/output.c:535
 dccp_finish_passive_close net/dccp/proto.c:123 [inline]
 dccp_finish_passive_close+0xed/0x140 net/dccp/proto.c:118
 dccp_terminate_connection net/dccp/proto.c:958 [inline]
 dccp_close+0xb3c/0xe60 net/dccp/proto.c:1028
 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:478
 __sock_release+0xcd/0x280 net/socket.c:599
 sock_close+0x18/0x20 net/socket.c:1258
 __fput+0x288/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x1a0 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]

Fixes 8afa10cbe281 ("net_sched: red: Avoid illegal values")

Reported-by syzbot <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 include/net/red.h     | 10 +++++++++-
 net/sched/sch_choke.c |  7 ++++---
 net/sched/sch_gred.c  |  2 +-
 net/sched/sch_red.c   |  7 +++++--
 net/sched/sch_sfq.c   |  2 +-
 5 files changed, 20 insertions(+), 8 deletions(-)

include/net/red.h +9 -1

index 932f0d79d60c..9e6647c4ccd1 100644
@@ -168,7 +168,8 @@ static inline void red_set_vars(struct red_vars *v)
 	v->qcount	= -1;
 }
 
-static inline bool red_check_params(u32 qth_min, u32 qth_max, u8 Wlog, u8 Scell_log)
+static inline bool red_check_params(u32 qth_min, u32 qth_max, u8 Wlog,
+				    u8 Scell_log, u8 *stab)
 {
 	if (fls(qth_min) + Wlog > 32)
 		return false;

@@ -178,6 +179,13 @@ static inline bool red_check_params(u32 qth_min, u32 qth_max, u8 Wlog, u8 Scell_
 		return false;
 	if (qth_max < qth_min)
 		return false;
+	if (stab) {
+		int i;
+
+		for (i = 0; i < RED_STAB_SIZE; i++)
+			if (stab[i] >= 32)
+				return false;
+	}
 	return true;
 }

net/sched/sch_choke.c +4 -3

index 50f680f03a54..2adbd945bf15 100644
@@ -345,6 +345,7 @@ static int choke_change(struct Qdisc *sch, struct nlattr *opt,
 	struct sk_buff **old = NULL;
 	unsigned int mask;
 	u32 max_P;
+	u8 *stab;
 
 	if (opt == NULL)
 		return -EINVAL;

@@ -361,8 +362,8 @@ static int choke_change(struct Qdisc *sch, struct nlattr *opt,
 	max_P = tb[TCA_CHOKE_MAX_P] ? nla_get_u32(tb[TCA_CHOKE_MAX_P]) : 0;
 
 	ctl = nla_data(tb[TCA_CHOKE_PARMS]);
-
-	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Scell_log))
+	stab = nla_data(tb[TCA_CHOKE_STAB]);
+	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Scell_log, stab))
 		return -EINVAL;
 
 	if (ctl->limit > CHOKE_MAX_QUEUE)

@@ -412,7 +413,7 @@ static int choke_change(struct Qdisc *sch, struct nlattr *opt,
 
 	red_set_parms(&q->parms, ctl->qth_min, ctl->qth_max, ctl->Wlog,
 		      ctl->Plog, ctl->Scell_log,
-		      nla_data(tb[TCA_CHOKE_STAB]),
+		      stab,
 		      max_P);
 	red_set_vars(&q->vars);

net/sched/sch_gred.c +1 -1

index e0bc77533acc..f4132dc25ac0 100644
@@ -480,7 +480,7 @@ static inline int gred_change_vq(struct Qdisc *sch, int dp,
 	struct gred_sched *table = qdisc_priv(sch);
 	struct gred_sched_data *q = table->tab[dp];
 
-	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Scell_log)) {
+	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Scell_log, stab)) {
 		NL_SET_ERR_MSG_MOD(extack, "invalid RED parameters");
 		return -EINVAL;
 	}

net/sched/sch_red.c +5 -2

index b4ae34d7aa96..40adf1f07a82 100644
@@ -242,6 +242,7 @@ static int __red_change(struct Qdisc *sch, struct nlattr **tb,
 	unsigned char flags;
 	int err;
 	u32 max_P;
+	u8 *stab;
 
 	if (tb[TCA_RED_PARMS] == NULL ||
 	    tb[TCA_RED_STAB] == NULL)

@@ -250,7 +251,9 @@ static int __red_change(struct Qdisc *sch, struct nlattr **tb,
 	max_P = tb[TCA_RED_MAX_P] ? nla_get_u32(tb[TCA_RED_MAX_P]) : 0;
 
 	ctl = nla_data(tb[TCA_RED_PARMS]);
-	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Scell_log))
+	stab = nla_data(tb[TCA_RED_STAB]);
+	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog,
+			      ctl->Scell_log, stab))
 		return -EINVAL;
 
 	err = red_get_flags(ctl->flags, TC_RED_HISTORIC_FLAGS,

@@ -288,7 +291,7 @@ static int __red_change(struct Qdisc *sch, struct nlattr **tb,
 	red_set_parms(&q->parms,
 		      ctl->qth_min, ctl->qth_max, ctl->Wlog,
 		      ctl->Plog, ctl->Scell_log,
-		      nla_data(tb[TCA_RED_STAB]),
+		      stab,
 		      max_P);
 	red_set_vars(&q->vars);

net/sched/sch_sfq.c +1 -1

index b25e51440623..066754a18569 100644
@@ -647,7 +647,7 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
 	}
 
 	if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
-					ctl_v1->Wlog, ctl_v1->Scell_log))
+					ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 		return -EINVAL;
 	if (ctl_v1 && ctl_v1->qth_min) {
 		p = kmalloc(sizeof(*p), GFP_KERNEL);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #104 lore raw

PATCH 104/221 net: dsa: bcm_sf2: Qualify phydev->dev_flags based on port

From: Florian Fainelli <[email protected]>

[ Upstream commit 47142ed6c34d544ae9f0463e58d482289cbe0d46 ]

Similar to commit 92696286f3bb37ba50e4bd8d1beb24afb759a799 ("net:
bcmgenet: Set phydev->dev_flags only for internal PHYs") we need to qualify the phydev->dev_flags based on whether the port is connected to an internal or external PHY otherwise we risk having a flags collision with a completely different interpretation depending on the driver.

Fixes aa9aef77c761 ("net: dsa: bcm_sf2: communicate integrated PHY revision to PHY driver")

Signed-off-by Florian Fainelli <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/dsa/bcm_sf2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

drivers/net/dsa/bcm_sf2.c +4 -2

index edb0a1027b38..510324916e91 100644
@@ -584,8 +584,10 @@ static u32 bcm_sf2_sw_get_phy_flags(struct dsa_switch *ds, int port)
 	 * in bits 15:8 and the patch level in bits 7:0 which is exactly what
 	 * the REG_PHY_REVISION register layout is.
 	 */
-
-	return priv->hw_params.gphy_rev;
+	if (priv->int_phy_mask & BIT(port))
+		return priv->hw_params.gphy_rev;
+	else
+		return 0;
 }
 
 static void bcm_sf2_sw_validate(struct dsa_switch *ds, int port,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #105 lore raw

PATCH 105/221 igc: reinit_locked() should be called with rtnl_lock

From: Sasha Neftin <[email protected]>

[ Upstream commit 6da262378c99b17b1a1ac2e42aa65acc1bd471c7 ]

This commit applies to the igc_reset_task the same changes that were applied to the igb driver in commit 024a8168b749 ("igb:
reinit_locked() should be called with rtnl_lock")
and fix possible race in reset subtask.

Fixes 0507ef8a0372 ("igc: Add transmit and receive fastpath and interrupt handlers")

Signed-off-by Sasha Neftin <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/igc/igc_main.c | 9 +++++++++
 1 file changed, 9 insertions(+)

drivers/net/ethernet/intel/igc/igc_main.c +9 -0

index b673ac1199bb..7b822cdcc6c5 100644
@@ -3846,10 +3846,19 @@ static void igc_reset_task(struct work_struct *work)
 
 	adapter = container_of(work, struct igc_adapter, reset_task);
 
+	rtnl_lock();
+	/* If we're already down or resetting, just bail */
+	if (test_bit(__IGC_DOWN, &adapter->state) ||
+	    test_bit(__IGC_RESETTING, &adapter->state)) {
+		rtnl_unlock();
+		return;
+	}
+
 	igc_rings_dump(adapter);
 	igc_regs_dump(adapter);
 	netdev_err(adapter->netdev, "Reset adapter\n");
 	igc_reinit_locked(adapter);
+	rtnl_unlock();
 }
 
 /**

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #106 lore raw

PATCH 106/221 igc: Fix Pause Frame Advertising

From: Muhammad Husaini Zulkifli <[email protected]>

[ Upstream commit 8876529465c368beafd51a70f79d7a738f2aadf4 ]

Fix Pause Frame Advertising when getting the advertisement via ethtool. Remove setting the "advertising" bit in link_ksettings during default case when Tx and Rx are in off state with Auto Negotiate off.

Below is the original output of advertisement link during Tx and Rx off:
Advertised pause frame use: Symmetric Receive-only

Expected output:
Advertised pause frame use: No

Fixes 8c5ad0dae93c ("igc: Add ethtool support")

Signed-off-by Muhammad Husaini Zulkifli <[email protected]>

Reviewed-by Malli C <[email protected]>

Acked-by Sasha Neftin <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/igc/igc_ethtool.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

drivers/net/ethernet/intel/igc/igc_ethtool.c +1 -3

index ec8cd69d4992..35c104a02bed 100644
@@ -1709,9 +1709,7 @@ static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
 						     Asym_Pause);
 		break;
 	default:
-		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
-		ethtool_link_ksettings_add_link_mode(cmd, advertising,
-						     Asym_Pause);
+		break;
 	}
 
 	status = pm_runtime_suspended(&adapter->pdev->dev) ?

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #107 lore raw

PATCH 107/221 igc: Fix Supported Pause Frame Link Setting

From: Muhammad Husaini Zulkifli <[email protected]>

[ Upstream commit 9a4a1cdc5ab52118c1f2b216f4240830b6528d32 ]

The Supported Pause Frame always display "No" even though the Advertised pause frame showing the correct setting based on the pause parameters via ethtool. Set bit in link_ksettings to "Supported" for Pause Frame.

Before output:
Supported pause frame use: No

Expected output:
Supported pause frame use: Symmetric

Fixes 8c5ad0dae93c ("igc: Add ethtool support")

Signed-off-by Muhammad Husaini Zulkifli <[email protected]>

Reviewed-by Malli C <[email protected]>

Acked-by Sasha Neftin <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/igc/igc_ethtool.c | 3 +++
 1 file changed, 3 insertions(+)

drivers/net/ethernet/intel/igc/igc_ethtool.c +3 -0

index 35c104a02bed..da259cd59add 100644
@@ -1695,6 +1695,9 @@ static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
 						     Autoneg);
 	}
 
+	/* Set pause flow control settings */
+	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
+
 	switch (hw->fc.requested_mode) {
 	case igc_fc_full:
 		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #108 lore raw

PATCH 108/221 igc: Fix igc_ptp_rx_pktstamp()

From: Andre Guedes <[email protected]>

[ Upstream commit fc9e5020971d57d7d0b3fef9e2ab2108fcb5588b ]

The comment describing the timestamps layout in the packet buffer is wrong and the code is actually retrieving the timestamp in Timer 1 reference instead of Timer 0. This hasn't been a big issue so far because hardware is configured to report both timestamps using Timer 0 (see IGC_SRRCTL register configuration in igc_ptp_enable_rx_timestamp() helper). This patch fixes the comment and the code so we retrieve the timestamp in Timer 0 reference as expected.

This patch also takes the opportunity to get rid of the hw.mac.type check since it is not required.

Fixes 81b055205e8ba ("igc: Add support for RX timestamping")

Signed-off-by Andre Guedes <[email protected]>

Signed-off-by Vedang Patel <[email protected]>

Signed-off-by Jithu Joseph <[email protected]>

Reviewed-by Maciej Fijalkowski <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/igc/igc.h     |  2 +-
 drivers/net/ethernet/intel/igc/igc_ptp.c | 72 +++++++++++++-----------
 2 files changed, 41 insertions(+), 33 deletions(-)

drivers/net/ethernet/intel/igc/igc.h +1 -1

index 35baae900c1f..6dca67d9c25d 100644
@@ -545,7 +545,7 @@ void igc_ptp_init(struct igc_adapter *adapter);
 void igc_ptp_reset(struct igc_adapter *adapter);
 void igc_ptp_suspend(struct igc_adapter *adapter);
 void igc_ptp_stop(struct igc_adapter *adapter);
-void igc_ptp_rx_pktstamp(struct igc_q_vector *q_vector, void *va,
+void igc_ptp_rx_pktstamp(struct igc_q_vector *q_vector, __le32 *va,
 			 struct sk_buff *skb);
 int igc_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
 int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr);

drivers/net/ethernet/intel/igc/igc_ptp.c +40 ~~-32~~

86 lines not on this page · raw message

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #109 lore raw

PATCH 109/221 e1000e: add rtnl_lock() to e1000_reset_task

From: Vitaly Lifshits <[email protected]>

[ Upstream commit 21f857f0321d0d0ea9b1a758bd55dc63d1cb2437 ]

A possible race condition was found in e1000_reset_task, after discovering a similar issue in igb driver via commit 024a8168b749 ("igb: reinit_locked() should be called with rtnl_lock").

Added rtnl_lock() and rtnl_unlock() to avoid this.

Fixes bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver (currently for ICH9 devices only)")

Signed-off-by Vitaly Lifshits <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/e1000e/netdev.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

drivers/net/ethernet/intel/e1000e/netdev.c +5 -1

index e9b82c209c2d..a0948002ddf8 100644
@@ -5974,15 +5974,19 @@ static void e1000_reset_task(struct work_struct *work)
 	struct e1000_adapter *adapter;
 	adapter = container_of(work, struct e1000_adapter, reset_task);
 
+	rtnl_lock();
 	/* don't run the task if already down */
-	if (test_bit(__E1000_DOWN, &adapter->state))
+	if (test_bit(__E1000_DOWN, &adapter->state)) {
+		rtnl_unlock();
 		return;
+	}
 
 	if (!(adapter->flags & FLAG_RESTART_NOW)) {
 		e1000e_dump(adapter);
 		e_err("Reset adapter unexpectedly\n");
 	}
 	e1000e_reinit_locked(adapter);
+	rtnl_unlock();
 }
 
 /**

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #110 lore raw

PATCH 110/221 e1000e: Fix error handling in e1000_set_d0_lplu_state_82571

From: Dinghao Liu <[email protected]>

[ Upstream commit b52912b8293f2c496f42583e65599aee606a0c18 ]

There is one e1e_wphy() call in e1000_set_d0_lplu_state_82571 that we have caught its return value but lack further handling. Check and terminate the execution flow just like other e1e_wphy() in this function.

Fixes bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver (currently for ICH9 devices only)")

Signed-off-by Dinghao Liu <[email protected]>

Acked-by Sasha Neftin <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/e1000e/82571.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/net/ethernet/intel/e1000e/82571.c +2 -0

index 88faf05e23ba..0b1e890dd583 100644
@@ -899,6 +899,8 @@ static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
 	} else {
 		data &= ~IGP02E1000_PM_D0_LPLU;
 		ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
+		if (ret_val)
+			return ret_val;
 		/* LPLU and SmartSpeed are mutually exclusive.  LPLU is used
 		 * during Dx states where the power conservation is most
 		 * important.  During driver activity we should enable

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #111 lore raw

PATCH 111/221 net/qlcnic: Fix a use after free in qlcnic_83xx_get_minidump_template

From: Lv Yunlong <[email protected]>

[ Upstream commit db74623a3850db99cb9692fda9e836a56b74198d ]

In qlcnic_83xx_get_minidump_template, fw_dump->tmpl_hdr was freed by vfree(). But unfortunately, it is used when extended is true.

Fixes 7061b2bdd620e ("qlogic: Deletion of unnecessary checks before two function calls")

Signed-off-by Lv Yunlong <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c | 3 +++
 1 file changed, 3 insertions(+)

drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c +3 -0

index 7760a3394e93..7ecb3dfe30bd 100644
@@ -1425,6 +1425,7 @@ void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *adapter)
 
 	if (fw_dump->tmpl_hdr == NULL || current_version > prev_version) {
 		vfree(fw_dump->tmpl_hdr);
+		fw_dump->tmpl_hdr = NULL;
 
 		if (qlcnic_83xx_md_check_extended_dump_capability(adapter))
 			extended = !qlcnic_83xx_extend_md_capab(adapter);

@@ -1443,6 +1444,8 @@ void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *adapter)
 			struct qlcnic_83xx_dump_template_hdr *hdr;
 
 			hdr = fw_dump->tmpl_hdr;
+			if (!hdr)
+				return;
 			hdr->drv_cap_mask = 0x1f;
 			fw_dump->cap_mask = 0x1f;
 			dev_info(&pdev->dev,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #112 lore raw

PATCH 112/221 net: phy: broadcom: Add power down exit reset state delay

From: Florian Fainelli <[email protected]>

[ Upstream commit 7a1468ba0e02eee24ae1353e8933793a27198e20 ]

Per the datasheet, when we clear the power down bit, the PHY remains in an internal reset state for 40us and then resume normal operation. Account for that delay to avoid any issues in the future if genphy_resume() changes.

Fixes fe26821fa614 ("net: phy: broadcom: Wire suspend/resume for BCM54810")

Signed-off-by Florian Fainelli <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/phy/broadcom.c | 5 +++++
 1 file changed, 5 insertions(+)

drivers/net/phy/broadcom.c +5 -0

index cd271de9609b..69713ea36d4e 100644
@@ -332,6 +332,11 @@ static int bcm54xx_resume(struct phy_device *phydev)
 	if (ret < 0)
 		return ret;
 
+	/* Upon exiting power down, the PHY remains in an internal reset state
+	 * for 40us
+	 */
+	fsleep(40);
+
 	return bcm54xx_config_init(phydev);
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #113 lore raw

PATCH 113/221 ftgmac100: Restart MAC HW once

From: Dylan Hung <[email protected]>

[ Upstream commit 6897087323a2fde46df32917462750c069668b2f ]

The interrupt handler may set the flag to reset the mac in the future, but that flag is not cleared once the reset has occurred.

Fixes 10cbd6407609 ("ftgmac100: Rework NAPI & interrupts handling")

Signed-off-by Dylan Hung <[email protected]>

Acked-by Benjamin Herrenschmidt <[email protected]>

Reviewed-by Joel Stanley <[email protected]>

Signed-off-by Joel Stanley <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/faraday/ftgmac100.c | 1 +
 1 file changed, 1 insertion(+)

drivers/net/ethernet/faraday/ftgmac100.c +1 -0

index 80fb1f537bb3..c9c380c50879 100644
@@ -1308,6 +1308,7 @@ static int ftgmac100_poll(struct napi_struct *napi, int budget)
 	 */
 	if (unlikely(priv->need_mac_restart)) {
 		ftgmac100_start_hw(priv);
+		priv->need_mac_restart = false;
 
 		/* Re-enable "bad" interrupts */
 		iowrite32(FTGMAC100_INT_BAD,

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #114 lore raw

PATCH 114/221 clk: qcom: gcc-sc7180: Use floor ops for the correct sdcc1 clk

Link https://lore.kernel.org/r/20210224095013.1.I2e2ba4978cfca06520dfb5d757768f9c42140f7c@changeid open here

From: Douglas Anderson <[email protected]>

[ Upstream commit 148ddaa89d4a0a927c4353398096cc33687755c1 ]

While picking commit a8cd989e1a57 ("mmc: sdhci-msm: Warn about overclocking SD/MMC") back to my tree I was surprised that it was reporting warnings. I thought I fixed those! Looking closer at the fix, I see that I totally bungled it (or at least I halfway bungled it). The SD card clock got fixed (and that was the one I was really focused on fixing), but I totally adjusted the wrong clock for eMMC. Sigh. Let's fix my dumb mistake.

Now both SD and eMMC have floor for the "apps" clock.

This doesn't matter a lot for the final clock rate for HS400 eMMC but could matter if someone happens to put some slower eMMC on a sc7180. We also transition through some of these lower rates sometimes and having them wrong could cause problems during these transitions. These were the messages I was seeing at boot:
mmc1: Card appears overclocked; req 52000000 Hz, actual 100000000 Hz
mmc1: Card appears overclocked; req 52000000 Hz, actual 100000000 Hz
mmc1: Card appears overclocked; req 104000000 Hz, actual 192000000 Hz

Fixes 6d37a8d19283 ("clk: qcom: gcc-sc7180: Use floor ops for sdcc clks")

Signed-off-by Douglas Anderson <[email protected]>

Reviewed-by Taniya Das <[email protected]>

Signed-off-by Stephen Boyd <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/clk/qcom/gcc-sc7180.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

drivers/clk/qcom/gcc-sc7180.c +2 -2

index b080739ab0c3..7e80dbd4a3f9 100644
@@ -620,7 +620,7 @@ static struct clk_rcg2 gcc_sdcc1_apps_clk_src = {
 		.name = "gcc_sdcc1_apps_clk_src",
 		.parent_data = gcc_parent_data_1,
 		.num_parents = 5,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_floor_ops,
 	},
 };

@@ -642,7 +642,7 @@ static struct clk_rcg2 gcc_sdcc1_ice_core_clk_src = {
 		.name = "gcc_sdcc1_ice_core_clk_src",
 		.parent_data = gcc_parent_data_0,
 		.num_parents = 4,
-		.ops = &clk_rcg2_floor_ops,
+		.ops = &clk_rcg2_ops,
 	},
 };

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #115 lore raw

PATCH 115/221 net: ipa: terminate message handler arrays

From: Alex Elder <[email protected]>

[ Upstream commit 3a9ef3e11c5d33e5cb355b4aad1a4caad2407541 ]

When a QMI handle is initialized, an array of message handler structures is provided, defining how any received message should be handled based on its type and message ID. The QMI core code traverses this array when a message arrives and calls the function associated with the (type, msg_id) found in the array.

The array is supposed to be terminated with an empty (all zero) entry though. Without it, an unsupported message will cause the QMI core code to go past the end of the array.

Fix this bug, by properly terminating the message handler arrays provided when QMI handles are set up by the IPA driver.

Fixes 530f9216a9537 ("soc: qcom: ipa: AP/modem communications")

Reported-by Sujit Kautkar <[email protected]>

Signed-off-by Alex Elder <[email protected]>

Reviewed-by Bjorn Andersson <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ipa/ipa_qmi.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/net/ipa/ipa_qmi.c +2 -0

index 5090f0f923ad..1a87a49538c5 100644
@@ -249,6 +249,7 @@ static struct qmi_msg_handler ipa_server_msg_handlers[] = {
 		.decoded_size	= IPA_QMI_DRIVER_INIT_COMPLETE_REQ_SZ,
 		.fn		= ipa_server_driver_init_complete,
 	},
+	{ },
 };
 
 /* Handle an INIT_DRIVER response message from the modem. */

@@ -269,6 +270,7 @@ static struct qmi_msg_handler ipa_client_msg_handlers[] = {
 		.decoded_size	= IPA_QMI_INIT_DRIVER_RSP_SZ,
 		.fn		= ipa_client_init_driver,
 	},
+	{ },
 };
 
 /* Return a pointer to an init modem driver request structure, which contains

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #116 lore raw

PATCH 116/221 net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()

From: Eric Dumazet <[email protected]>

[ Upstream commit 50535249f624d0072cd885bcdce4e4b6fb770160 ]

struct sockaddr_qrtr has a 2-byte hole, and qrtr_recvmsg() currently does not clear it before copying kernel data to user space.

It might be too late to name the hole since sockaddr_qrtr structure is uapi.

BUG: KMSAN: kernel-infoleak in kmsan_copy_to_user+0x9c/0xb0 mm/kmsan/kmsan_hooks.c:249
CPU: 0 PID: 29705 Comm: syz-executor.3 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x21c/0x280 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 kmsan_internal_check_memory+0x202/0x520 mm/kmsan/kmsan.c:402
 kmsan_copy_to_user+0x9c/0xb0 mm/kmsan/kmsan_hooks.c:249
 instrument_copy_to_user include/linux/instrumented.h:121 [inline]
 _copy_to_user+0x1ac/0x270 lib/usercopy.c:33
 copy_to_user include/linux/uaccess.h:209 [inline]
 move_addr_to_user+0x3a2/0x640 net/socket.c:237
 ____sys_recvmsg+0x696/0xd50 net/socket.c:2575
 ___sys_recvmsg net/socket.c:2610 [inline]
 do_recvmmsg+0xa97/0x22d0 net/socket.c:2710
 __sys_recvmmsg net/socket.c:2789 [inline]
 __do_sys_recvmmsg net/socket.c:2812 [inline]
 __se_sys_recvmmsg+0x24a/0x410 net/socket.c:2805
 __x64_sys_recvmmsg+0x62/0x80 net/socket.c:2805
 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x465f69
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f43659d6188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000008 RSI: 0000000020003e40 RDI: 0000000000000003
RBP: 00000000004bfa8f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010060 R11: 0000000000000246 R12: 000000000056bf60
R13: 0000000000a9fb1f R14: 00007f43659d6300 R15: 0000000000022000

Local variable ----addr@____sys_recvmsg created at:

 ____sys_recvmsg+0x168/0xd50 net/socket.c:2550
 ____sys_recvmsg+0x168/0xd50 net/socket.c:2550

Bytes 2-3 of 12 are uninitialized
Memory access of size 12 starts at ffff88817c627b40 Data copied to user address 0000000020000140

Fixes bdabad3e363d ("net: Add Qualcomm IPC router")

Cc Courtney Cavin <[email protected]>

Reported-by syzbot <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/qrtr/qrtr.c | 5 +++++
 1 file changed, 5 insertions(+)

net/qrtr/qrtr.c +5 -0

index 54031ee079a2..45fbf5f4dcd2 100644
@@ -1035,6 +1035,11 @@ static int qrtr_recvmsg(struct socket *sock, struct msghdr *msg,
 	rc = copied;
 
 	if (addr) {
+		/* There is an anonymous 2-byte hole after sq_family,
+		 * make sure to clear it.
+		 */
+		memset(addr, 0, sizeof(*addr));
+
 		addr->sq_family = AF_QIPCRTR;
 		addr->sq_node = cb->src_node;
 		addr->sq_port = cb->src_port;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #117 lore raw

PATCH 117/221 flow_dissector: fix byteorder of dissected ICMP ID

From: Alexander Lobakin <[email protected]>

[ Upstream commit a25f822285420486f5da434efc8d940d42a83bce ]

flow_dissector_key_icmp::id is of type u16 (CPU byteorder), ICMP header has its ID field in network byteorder obviously. Sparse says:

net/core/flow_dissector.c:178:43: warning: restricted __be16 degrades to integer

Convert ID value to CPU byteorder when storing it into flow_dissector_key_icmp.

Fixes 5dec597e5cd0 ("flow_dissector: extract more ICMP information")

Signed-off-by Alexander Lobakin <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/core/flow_dissector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

net/core/flow_dissector.c +1 -1

index e21950a2c897..c79be25b2e0c 100644
@@ -175,7 +175,7 @@ void skb_flow_get_icmp_tci(const struct sk_buff *skb,
 	 * avoid confusion with packets without such field
 	 */
 	if (icmp_has_id(ih->type))
-		key_icmp->id = ih->un.echo.id ? : 1;
+		key_icmp->id = ih->un.echo.id ? ntohs(ih->un.echo.id) : 1;
 	else
 		key_icmp->id = 0;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #118 lore raw

PATCH 118/221 selftests/bpf: Set gopt opt_class to 0 if get tunnel opt failed

From: Hangbin Liu <[email protected]>

[ Upstream commit 31254dc9566221429d2cfb45fd5737985d70f2b6 ]

When fixing the bpf test_tunnel.sh geneve failure. I only fixed the IPv4 part but forgot the IPv6 issue. Similar with the IPv4 fixes 557c223b643a ("selftests/bpf: No need to drop the packet when there is no geneve opt"), when there is no tunnel option and bpf_skb_get_tunnel_opt() returns error, there is no need to drop the packets and break all geneve rx traffic. Just set opt_class to 0 and keep returning TC_ACT_OK at the end.

Fixes 557c223b643a ("selftests/bpf: No need to drop the packet when there is no geneve opt")

Fixes 933a741e3b82 ("selftests/bpf: bpf tunnel test.")

Signed-off-by Hangbin Liu <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Acked-by William Tu <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 tools/testing/selftests/bpf/progs/test_tunnel_kern.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

tools/testing/selftests/bpf/progs/test_tunnel_kern.c +2 -4

index 9afe947cfae9..ba6eadfec565 100644
@@ -508,10 +508,8 @@ int _ip6geneve_get_tunnel(struct __sk_buff *skb)
 	}
 
 	ret = bpf_skb_get_tunnel_opt(skb, &gopt, sizeof(gopt));
-	if (ret < 0) {
-		ERROR(ret);
-		return TC_ACT_SHOT;
-	}
+	if (ret < 0)
+		gopt.opt_class = 0;
 
 	bpf_trace_printk(fmt, sizeof(fmt),
 			key.tunnel_id, key.remote_ipv4, gopt.opt_class);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #119 lore raw

PATCH 119/221 netfilter: ctnetlink: fix dump of the expect mask attribute

From: Florian Westphal <[email protected]>

[ Upstream commit b58f33d49e426dc66e98ed73afb5d97b15a25f2d ]

Before this change, the mask is never included in the netlink message, so "conntrack -E expect" always prints 0.0.0.0.

In older kernels the l3num callback struct was passed as argument, based on tuple->src.l3num. After the l3num indirection got removed, the call chain is based on m.src.l3num, but this value is 0xffff.

Init l3num to the correct value.

Fixes f957be9d349a3 ("netfilter: conntrack: remove ctnetlink callbacks from l3 protocol trackers")

Signed-off-by Florian Westphal <[email protected]>

Signed-off-by Pablo Neira Ayuso <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/netfilter/nf_conntrack_netlink.c | 1 +
 1 file changed, 1 insertion(+)

net/netfilter/nf_conntrack_netlink.c +1 -0

index 3d0fd33be018..c1bfd8181341 100644
@@ -2960,6 +2960,7 @@ static int ctnetlink_exp_dump_mask(struct sk_buff *skb,
 	memset(&m, 0xFF, sizeof(m));
 	memcpy(&m.src.u3, &mask->src.u3, sizeof(m.src.u3));
 	m.src.u.all = mask->src.u.all;
+	m.src.l3num = tuple->src.l3num;
 	m.dst.protonum = tuple->dst.protonum;
 
 	nest_parms = nla_nest_start(skb, CTA_EXPECT_MASK);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #120 lore raw

PATCH 120/221 net: hdlc_x25: Prevent racing between "x25_close" and "x25_xmit"/"x25_rx"

From: Xie He <[email protected]>

[ Upstream commit bf0ffea336b493c0a8c8bc27b46683ecf1e8f294 ]

"x25_close" is called by "hdlc_close" in "hdlc.c", which is called by hardware drivers' "ndo_stop" function.
"x25_xmit" is called by "hdlc_start_xmit" in "hdlc.c", which is hardware drivers' "ndo_start_xmit" function.
"x25_rx" is called by "hdlc_rcv" in "hdlc.c", which receives HDLC frames from "net/core/dev.c".

"x25_close" races with "x25_xmit" and "x25_rx" because their callers race.

However, we need to ensure that the LAPB APIs called in "x25_xmit" and "x25_rx" are called before "lapb_unregister" is called in "x25_close".

This patch adds locking to ensure when "x25_xmit" and "x25_rx" are doing their work, "lapb_unregister" is not yet called in "x25_close".

Reasons for not solving the racing between "x25_close" and "x25_xmit" by calling "netif_tx_disable" in "x25_close":
1. We still need to solve the racing between "x25_close" and "x25_rx";
2. The design of the HDLC subsystem assumes the HDLC hardware drivers have full control over the TX queue, and the HDLC protocol drivers (like this driver) have no control. Controlling the queue here in the protocol driver may interfere with hardware drivers' control of the queue.

Fixes 1da177e4c3f4 ("Linux-2.6.12-rc2")

Signed-off-by Xie He <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/wan/hdlc_x25.c | 42 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

drivers/net/wan/hdlc_x25.c +41 -1

index 34bc53facd11..6938cb3bdf4e 100644
@@ -23,6 +23,8 @@
 
 struct x25_state {
 	x25_hdlc_proto settings;
+	bool up;
+	spinlock_t up_lock; /* Protects "up" */
 };
 
 static int x25_ioctl(struct net_device *dev, struct ifreq *ifr);

@@ -105,6 +107,8 @@ static void x25_data_transmit(struct net_device *dev, struct sk_buff *skb)
 
 static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
 {
+	hdlc_device *hdlc = dev_to_hdlc(dev);
+	struct x25_state *x25st = state(hdlc);
 	int result;
 
 	/* There should be a pseudo header of 1 byte added by upper layers.

@@ -115,12 +119,20 @@ static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
 		return NETDEV_TX_OK;
 	}
 
+	spin_lock_bh(&x25st->up_lock);
+	if (!x25st->up) {
+		spin_unlock_bh(&x25st->up_lock);
+		kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+
 	switch (skb->data[0]) {
 	case X25_IFACE_DATA:	/* Data to be transmitted */
 		skb_pull(skb, 1);
 		skb_reset_network_header(skb);
 		if ((result = lapb_data_request(dev, skb)) != LAPB_OK)
 			dev_kfree_skb(skb);
+		spin_unlock_bh(&x25st->up_lock);
 		return NETDEV_TX_OK;
 
 	case X25_IFACE_CONNECT:

@@ -149,6 +161,7 @@ static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
 		break;
 	}
 
+	spin_unlock_bh(&x25st->up_lock);
 	dev_kfree_skb(skb);
 	return NETDEV_TX_OK;
 }

@@ -166,6 +179,7 @@ static int x25_open(struct net_device *dev)
 		.data_transmit = x25_data_transmit,
 	};
 	hdlc_device *hdlc = dev_to_hdlc(dev);
+	struct x25_state *x25st = state(hdlc);
 	struct lapb_parms_struct params;
 	int result;

@@ -192,6 +206,10 @@ static int x25_open(struct net_device *dev)
 	if (result != LAPB_OK)
 		return -EINVAL;
 
+	spin_lock_bh(&x25st->up_lock);
+	x25st->up = true;
+	spin_unlock_bh(&x25st->up_lock);
+
 	return 0;
 }

@@ -199,6 +217,13 @@ static int x25_open(struct net_device *dev)
 
 static void x25_close(struct net_device *dev)
 {
+	hdlc_device *hdlc = dev_to_hdlc(dev);
+	struct x25_state *x25st = state(hdlc);
+
+	spin_lock_bh(&x25st->up_lock);
+	x25st->up = false;
+	spin_unlock_bh(&x25st->up_lock);
+
 	lapb_unregister(dev);
 }

@@ -207,15 +232,28 @@ static void x25_close(struct net_device *dev)
 static int x25_rx(struct sk_buff *skb)
 {
 	struct net_device *dev = skb->dev;
+	hdlc_device *hdlc = dev_to_hdlc(dev);
+	struct x25_state *x25st = state(hdlc);
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
 		dev->stats.rx_dropped++;
 		return NET_RX_DROP;
 	}
 
-	if (lapb_data_received(dev, skb) == LAPB_OK)
+	spin_lock_bh(&x25st->up_lock);
+	if (!x25st->up) {
+		spin_unlock_bh(&x25st->up_lock);
+		kfree_skb(skb);
+		dev->stats.rx_dropped++;
+		return NET_RX_DROP;
+	}
+
+	if (lapb_data_received(dev, skb) == LAPB_OK) {
+		spin_unlock_bh(&x25st->up_lock);
 		return NET_RX_SUCCESS;
+	}
 
+	spin_unlock_bh(&x25st->up_lock);
 	dev->stats.rx_errors++;
 	dev_kfree_skb_any(skb);
 	return NET_RX_DROP;

@@ -300,6 +338,8 @@ static int x25_ioctl(struct net_device *dev, struct ifreq *ifr)
 			return result;
 
 		memcpy(&state(hdlc)->settings, &new_settings, size);
+		state(hdlc)->up = false;
+		spin_lock_init(&state(hdlc)->up_lock);
 
 		/* There's no header_ops so hard_header_len should be 0. */
 		dev->hard_header_len = 0;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #121 lore raw

PATCH 121/221 net: phylink: Fix phylink_err() function name error in phylink_major_config

From: Ong Boon Leong <[email protected]>

[ Upstream commit d82c6c1aaccd2877b6082cebcb1746a13648a16d ]

if pl->mac_ops->mac_finish() failed, phylink_err should use "mac_finish" instead of "mac_prepare".

Fixes b7ad14c2fe2d4 ("net: phylink: re-implement interface configuration with PCS")

Signed-off-by Ong Boon Leong <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/phy/phylink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/net/phy/phylink.c +1 -1

index fe2296fdda19..6072e87ed6c3 100644
@@ -472,7 +472,7 @@ static void phylink_major_config(struct phylink *pl, bool restart,
 		err = pl->mac_ops->mac_finish(pl->config, pl->cur_link_an_mode,
 					      state->interface);
 		if (err < 0)
-			phylink_err(pl, "mac_prepare failed: %pe\n",
+			phylink_err(pl, "mac_finish failed: %pe\n",
 				    ERR_PTR(err));
 	}
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #122 lore raw

PATCH 122/221 tipc: better validate user input in tipc_nl_retrieve_key()

From: Eric Dumazet <[email protected]>

[ Upstream commit 0217ed2848e8538bcf9172d97ed2eeb4a26041bb ]

Before calling tipc_aead_key_size(ptr), we need to ensure we have enough data to dereference ptr->keylen.

We probably also want to make sure tipc_aead_key_size() wont overflow with malicious ptr->keylen values.

Syzbot reported:

BUG: KMSAN: uninit-value in __tipc_nl_node_set_key net/tipc/node.c:2971 [inline]
BUG: KMSAN: uninit-value in tipc_nl_node_set_key+0x9bf/0x13b0 net/tipc/node.c:3023
CPU: 0 PID: 21060 Comm: syz-executor.5 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x21c/0x280 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
 __tipc_nl_node_set_key net/tipc/node.c:2971 [inline]
 tipc_nl_node_set_key+0x9bf/0x13b0 net/tipc/node.c:3023
 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x1319/0x1610 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x6fa/0x810 net/netlink/af_netlink.c:2494
 genl_rcv+0x63/0x80 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x11d6/0x14a0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x1740/0x1840 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2345
 ___sys_sendmsg net/socket.c:2399 [inline]
 __sys_sendmsg+0x714/0x830 net/socket.c:2432
 __compat_sys_sendmsg net/compat.c:347 [inline]
 __do_compat_sys_sendmsg net/compat.c:354 [inline]
 __se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
 __ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
 do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
 __do_fast_syscall_32+0x102/0x160 arch/x86/entry/common.c:141
 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:166
 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:209
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f60549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f555a5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000200
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Uninit was created at:

 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
 kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
 slab_alloc_node mm/slub.c:2907 [inline]
 __kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 __alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
 alloc_skb include/linux/skbuff.h:1099 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1176 [inline]
 netlink_sendmsg+0xdbc/0x1840 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2345
 ___sys_sendmsg net/socket.c:2399 [inline]
 __sys_sendmsg+0x714/0x830 net/socket.c:2432
 __compat_sys_sendmsg net/compat.c:347 [inline]
 __do_compat_sys_sendmsg net/compat.c:354 [inline]
 __se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
 __ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
 do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
 __do_fast_syscall_32+0x102/0x160 arch/x86/entry/common.c:141
 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:166
 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:209
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Fixes e1f32190cf7d ("tipc: add support for AEAD key setting via netlink")

Cc Tuong Lien <[email protected]>

Cc Jon Maloy <[email protected]>

Cc Ying Xue <[email protected]>

Reported-by syzbot <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/tipc/node.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

net/tipc/node.c +8 -3

index 83978d5dae59..e4452d55851f 100644
@@ -2855,17 +2855,22 @@ int tipc_nl_node_dump_monitor_peer(struct sk_buff *skb,
 
 #ifdef CONFIG_TIPC_CRYPTO
 static int tipc_nl_retrieve_key(struct nlattr **attrs,
-				struct tipc_aead_key **key)
+				struct tipc_aead_key **pkey)
 {
 	struct nlattr *attr = attrs[TIPC_NLA_NODE_KEY];
+	struct tipc_aead_key *key;
 
 	if (!attr)
 		return -ENODATA;
 
-	*key = (struct tipc_aead_key *)nla_data(attr);
-	if (nla_len(attr) < tipc_aead_key_size(*key))
+	if (nla_len(attr) < sizeof(*key))
+		return -EINVAL;
+	key = (struct tipc_aead_key *)nla_data(attr);
+	if (key->keylen > TIPC_AEAD_KEYLEN_MAX ||
+	    nla_len(attr) < tipc_aead_key_size(key))
 		return -EINVAL;
 
+	*pkey = key;
 	return 0;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #123 lore raw

PATCH 123/221 tcp: relookup sock for RST+ACK packets handled by obsolete req sock

From: Alexander Ovechkin <[email protected]>

[ Upstream commit 7233da86697efef41288f8b713c10c2499cffe85 ]

Currently tcp_check_req can be called with obsolete req socket for which big socket have been already created (because of CPU race or early demux assigning req socket to multiple packets in gro batch).

Commit e0f9759f530bf789e984 ("tcp: try to keep packet if SYN_RCV race is lost") added retry in case when tcp_check_req is called for PSH|ACK packet. But if client sends RST+ACK immediatly after connection being established (it is performing healthcheck, for example) retry does not occur. In that case tcp_check_req tries to close req socket, leaving big socket active.

Fixes e0f9759f530 ("tcp: try to keep packet if SYN_RCV race is lost")

Signed-off-by Alexander Ovechkin <[email protected]>

Reported-by Oleg Senin <[email protected]>

Reviewed-by Eric Dumazet <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 include/net/inet_connection_sock.h | 2 +-
 net/ipv4/inet_connection_sock.c    | 7 +++++--
 net/ipv4/tcp_minisocks.c           | 7 +++++--
 3 files changed, 11 insertions(+), 5 deletions(-)

include/net/inet_connection_sock.h +1 -1

index 111d7771b208..aa92af3dd444 100644
@@ -284,7 +284,7 @@ static inline int inet_csk_reqsk_queue_is_full(const struct sock *sk)
 	return inet_csk_reqsk_queue_len(sk) >= sk->sk_max_ack_backlog;
 }
 
-void inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req);
+bool inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req);
 void inet_csk_reqsk_queue_drop_and_put(struct sock *sk, struct request_sock *req);
 
 static inline void inet_csk_prepare_for_destroy_sock(struct sock *sk)

net/ipv4/inet_connection_sock.c +5 -2

index 48d2b615edc2..1dfa561e8f98 100644
@@ -705,12 +705,15 @@ static bool reqsk_queue_unlink(struct request_sock *req)
 	return found;
 }
 
-void inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req)
+bool inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req)
 {
-	if (reqsk_queue_unlink(req)) {
+	bool unlinked = reqsk_queue_unlink(req);
+
+	if (unlinked) {
 		reqsk_queue_removed(&inet_csk(sk)->icsk_accept_queue, req);
 		reqsk_put(req);
 	}
+	return unlinked;
 }
 EXPORT_SYMBOL(inet_csk_reqsk_queue_drop);

net/ipv4/tcp_minisocks.c +5 -2

index 495dda2449fe..f0f67b25c97a 100644
@@ -804,8 +804,11 @@ embryonic_reset:
 		tcp_reset(sk);
 	}
 	if (!fastopen) {
-		inet_csk_reqsk_queue_drop(sk, req);
-		__NET_INC_STATS(sock_net(sk), LINUX_MIB_EMBRYONICRSTS);
+		bool unlinked = inet_csk_reqsk_queue_drop(sk, req);
+
+		if (unlinked)
+			__NET_INC_STATS(sock_net(sk), LINUX_MIB_EMBRYONICRSTS);
+		*req_stolen = !unlinked;
 	}
 	return NULL;
 }

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #124 lore raw

PATCH 124/221 can: isotp: isotp_setsockopt(): only allow to set low level TX flags for CAN-FD

From: Marc Kleine-Budde <[email protected]>

[ Upstream commit e4912459bd5edd493b61bc7c3a5d9b2eb17f5a89 ]

CAN-FD frames have struct canfd_frame::flags, while classic CAN frames don't.

This patch refuses to set TX flags (struct can_isotp_ll_options::tx_flags) on non CAN-FD isotp sockets.

Fixes e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")

Link https://lore.kernel.org/r/[email protected] open here

Cc Oliver Hartkopp <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/can/isotp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

net/can/isotp.c +2 -1

index 8bd565f2073e..a9b96a6e6317 100644
@@ -1212,7 +1212,8 @@ static int isotp_setsockopt(struct socket *sock, int level, int optname,
 			if (ll.mtu != CAN_MTU && ll.mtu != CANFD_MTU)
 				return -EINVAL;
 
-			if (ll.mtu == CAN_MTU && ll.tx_dl > CAN_MAX_DLEN)
+			if (ll.mtu == CAN_MTU &&
+			    (ll.tx_dl > CAN_MAX_DLEN || ll.tx_flags != 0))
 				return -EINVAL;
 
 			memcpy(&so->ll, &ll, sizeof(ll));

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #125 lore raw

PATCH 125/221 can: isotp: TX-path: ensure that CAN frame flags are initialized

From: Marc Kleine-Budde <[email protected]>

[ Upstream commit d4eb538e1f48b3cf7bb6cb9eb39fe3e9e8a701f7 ]

The previous patch ensures that the TX flags (struct can_isotp_ll_options::tx_flags) are 0 for classic CAN frames or a user configured value for CAN-FD frames.

This patch sets the CAN frames flags unconditionally to the ISO-TP TX flags, so that they are initialized to a proper value. Otherwise when running "candump -x" on a classical CAN ISO-TP stream shows wrongly set "B" and "E" flags.

| $ candump any,0:0,#FFFFFFFF -extA
| [...]
| can0  TX B E  713   [8]  2B 0A 0B 0C 0D 0E 0F 00
| can0  TX B E  713   [8]  2C 01 02 03 04 05 06 07
| can0  TX B E  713   [8]  2D 08 09 0A 0B 0C 0D 0E
| can0  TX B E  713   [8]  2E 0F 00 01 02 03 04 05

Fixes e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")

Link https://lore.kernel.org/r/[email protected] open here

Cc Oliver Hartkopp <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/can/isotp.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

net/can/isotp.c +3 -6

index a9b96a6e6317..b01662d2f2cd 100644
@@ -215,8 +215,7 @@ static int isotp_send_fc(struct sock *sk, int ae, u8 flowstatus)
 	if (ae)
 		ncf->data[0] = so->opt.ext_address;
 
-	if (so->ll.mtu == CANFD_MTU)
-		ncf->flags = so->ll.tx_flags;
+	ncf->flags = so->ll.tx_flags;
 
 	can_send_ret = can_send(nskb, 1);
 	if (can_send_ret)

@@ -790,8 +789,7 @@ isotp_tx_burst:
 		so->tx.sn %= 16;
 		so->tx.bs++;
 
-		if (so->ll.mtu == CANFD_MTU)
-			cf->flags = so->ll.tx_flags;
+		cf->flags = so->ll.tx_flags;
 
 		skb->dev = dev;
 		can_skb_set_owner(skb, sk);

@@ -934,8 +932,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	}
 
 	/* send the first or only CAN frame */
-	if (so->ll.mtu == CANFD_MTU)
-		cf->flags = so->ll.tx_flags;
+	cf->flags = so->ll.tx_flags;
 
 	skb->dev = dev;
 	skb->sk = sk;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #126 lore raw

PATCH 126/221 can: peak_usb: add forgotten supported devices

From: Stephane Grosjean <[email protected]>

[ Upstream commit 59ec7b89ed3e921cd0625a8c83f31a30d485fdf8 ]

Since the peak_usb driver also supports the CAN-USB interfaces "PCAN-USB X6" and "PCAN-Chip USB" from PEAK-System GmbH, this patch adds their names to the list of explicitly supported devices.

Fixes ea8b65b596d7 ("can: usb: Add support of PCAN-Chip USB stamp module")

Fixes f00b534ded60 ("can: peak: Add support for PCAN-USB X6 USB interface")

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Stephane Grosjean <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/net/can/usb/peak_usb/pcan_usb_fd.c +2 -0

index d56592283818..3f8d99286b1e 100644
@@ -18,6 +18,8 @@
 
 MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB FD adapter");
 MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB Pro FD adapter");
+MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-Chip USB");
+MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB X6 adapter");
 
 #define PCAN_USBPROFD_CHANNEL_COUNT	2
 #define PCAN_USBFD_CHANNEL_COUNT	1

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #127 lore raw

PATCH 127/221 can: flexcan: flexcan_chip_freeze(): fix chip freeze for missing bitrate

From: Angelo Dureghello <[email protected]>

[ Upstream commit 47c5e474bc1e1061fb037d13b5000b38967eb070 ]

For cases when flexcan is built-in, bitrate is still not set at registering. So flexcan_chip_freeze() generates:

[    1.860000] *** ZERO DIVIDE ***   FORMAT=4
[    1.860000] Current process id is 1
[    1.860000] BAD KERNEL TRAP: 00000000
[    1.860000] PC: [<402e70c8>] flexcan_chip_freeze+0x1a/0xa8

To allow chip freeze, using an hardcoded timeout when bitrate is still not set.

Fixes ec15e27cc890 ("can: flexcan: enable RX FIFO after FRZ/HALT valid")

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Angelo Dureghello <[email protected]>

[mkl: use if instead of ? operator]

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/flexcan.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

drivers/net/can/flexcan.c +7 -1

index d712c6fdbc87..7cbaac238ff6 100644
@@ -658,9 +658,15 @@ static int flexcan_chip_disable(struct flexcan_priv *priv)
 static int flexcan_chip_freeze(struct flexcan_priv *priv)
 {
 	struct flexcan_regs __iomem *regs = priv->regs;
-	unsigned int timeout = 1000 * 1000 * 10 / priv->can.bittiming.bitrate;
+	unsigned int timeout;
+	u32 bitrate = priv->can.bittiming.bitrate;
 	u32 reg;
 
+	if (bitrate)
+		timeout = 1000 * 1000 * 10 / bitrate;
+	else
+		timeout = FLEXCAN_TIMEOUT_US / 10;
+
 	reg = priv->read(&regs->mcr);
 	reg |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_HALT;
 	priv->write(reg, &regs->mcr);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #128 lore raw

PATCH 128/221 can: kvaser_pciefd: Always disable bus load reporting

From: Jimmy Assarsson <[email protected]>

[ Upstream commit 7c6e6bce08f918b64459415f58061d4d6df44994 ]

Under certain circumstances, when switching from Kvaser's linuxcan driver (kvpciefd) to the SocketCAN driver (kvaser_pciefd), the bus load reporting is not disabled.
This is flooding the kernel log with prints like:

[3485.574677] kvaser_pciefd 0000:02:00.0: Received unexpected packet type 0x00000009

Always put the controller in the expected state, instead of assuming that bus load reporting is inactive.

Note: If bus load reporting is enabled when the driver is loaded, you will
still get a number of bus load packages (and printouts), before it is disabled.

Fixes 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices")

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Jimmy Assarsson <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/kvaser_pciefd.c | 4 ++++
 1 file changed, 4 insertions(+)

drivers/net/can/kvaser_pciefd.c +4 -0

index 43151dd6cb1c..99323c273aa5 100644
@@ -57,6 +57,7 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices");
 #define KVASER_PCIEFD_KCAN_STAT_REG 0x418
 #define KVASER_PCIEFD_KCAN_MODE_REG 0x41c
 #define KVASER_PCIEFD_KCAN_BTRN_REG 0x420
+#define KVASER_PCIEFD_KCAN_BUS_LOAD_REG 0x424
 #define KVASER_PCIEFD_KCAN_BTRD_REG 0x428
 #define KVASER_PCIEFD_KCAN_PWM_REG 0x430
 /* Loopback control register */

@@ -949,6 +950,9 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie)
 		timer_setup(&can->bec_poll_timer, kvaser_pciefd_bec_poll_timer,
 			    0);
 
+		/* Disable Bus load reporting */
+		iowrite32(0, can->reg_base + KVASER_PCIEFD_KCAN_BUS_LOAD_REG);
+
 		tx_npackets = ioread32(can->reg_base +
 				       KVASER_PCIEFD_KCAN_TX_NPACKETS_REG);
 		if (((tx_npackets >> KVASER_PCIEFD_KCAN_TX_NPACKETS_MAX_SHIFT) &

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #129 lore raw

PATCH 129/221 can: c_can_pci: c_can_pci_remove(): fix use-after-free

From: Tong Zhang <[email protected]>

[ Upstream commit 0429d6d89f97ebff4f17f13f5b5069c66bde8138 ]

There is a UAF in c_can_pci_remove(). dev is released by free_c_can_dev() and is used by pci_iounmap(pdev, priv->base) later. To fix this issue, save the mmio address before releasing dev.

Fixes 5b92da0443c2 ("c_can_pci: generic module for C_CAN/D_CAN on PCI")

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Tong Zhang <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/c_can/c_can_pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

drivers/net/can/c_can/c_can_pci.c +2 -1

index 406b4847e5dc..7efb60b50876 100644
@@ -239,12 +239,13 @@ static void c_can_pci_remove(struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct c_can_priv *priv = netdev_priv(dev);
+	void __iomem *addr = priv->base;
 
 	unregister_c_can_dev(dev);
 
 	free_c_can_dev(dev);
 
-	pci_iounmap(pdev, priv->base);
+	pci_iounmap(pdev, addr);
 	pci_disable_msi(pdev);
 	pci_clear_master(pdev);
 	pci_release_regions(pdev);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #130 lore raw

PATCH 130/221 can: c_can: move runtime PM enable/disable to c_can_platform

From: Tong Zhang <[email protected]>

[ Upstream commit 6e2fe01dd6f98da6cae8b07cd5cfa67abc70d97d ]

Currently doing modprobe c_can_pci will make the kernel complain:

Unbalanced pm_runtime_enable!

this is caused by pm_runtime_enable() called before pm is initialized.

This fix is similar to 227619c3ff7c, move those pm_enable/disable code to c_can_platform.

Fixes 4cdd34b26826 ("can: c_can: Add runtime PM support to Bosch C_CAN/D_CAN controller")

Link http://lore.kernel.org/r/[email protected] open here

Signed-off-by Tong Zhang <[email protected]>

Tested-by Uwe Kleine-König <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/c_can/c_can.c          | 24 +-----------------------
 drivers/net/can/c_can/c_can_platform.c |  6 +++++-
 2 files changed, 6 insertions(+), 24 deletions(-)

drivers/net/can/c_can/c_can.c +1 ~~-23~~

index 1a9e9b9a4bf6..6c75e5897620 100644
@@ -212,18 +212,6 @@ static const struct can_bittiming_const c_can_bittiming_const = {
 	.brp_inc = 1,
 };
 
-static inline void c_can_pm_runtime_enable(const struct c_can_priv *priv)
-{
-	if (priv->device)
-		pm_runtime_enable(priv->device);
-}
-
-static inline void c_can_pm_runtime_disable(const struct c_can_priv *priv)
-{
-	if (priv->device)
-		pm_runtime_disable(priv->device);
-}
-
 static inline void c_can_pm_runtime_get_sync(const struct c_can_priv *priv)
 {
 	if (priv->device)

@@ -1335,7 +1323,6 @@ static const struct net_device_ops c_can_netdev_ops = {
 
 int register_c_can_dev(struct net_device *dev)
 {
-	struct c_can_priv *priv = netdev_priv(dev);
 	int err;
 
 	/* Deactivate pins to prevent DRA7 DCAN IP from being

@@ -1345,28 +1332,19 @@ int register_c_can_dev(struct net_device *dev)
 	 */
 	pinctrl_pm_select_sleep_state(dev->dev.parent);
 
-	c_can_pm_runtime_enable(priv);
-
 	dev->flags |= IFF_ECHO;	/* we support local echo */
 	dev->netdev_ops = &c_can_netdev_ops;
 
 	err = register_candev(dev);
-	if (err)
-		c_can_pm_runtime_disable(priv);
-	else
+	if (!err)
 		devm_can_led_init(dev);
-
 	return err;
 }
 EXPORT_SYMBOL_GPL(register_c_can_dev);
 
 void unregister_c_can_dev(struct net_device *dev)
 {
-	struct c_can_priv *priv = netdev_priv(dev);
-
 	unregister_candev(dev);
-
-	c_can_pm_runtime_disable(priv);
 }
 EXPORT_SYMBOL_GPL(unregister_c_can_dev);

drivers/net/can/c_can/c_can_platform.c +5 -1

index 05f425ceb53a..47b251b1607c 100644
@@ -29,6 +29,7 @@
 #include <linux/list.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/clk.h>
 #include <linux/of.h>
 #include <linux/of_device.h>

@@ -386,6 +387,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
+	pm_runtime_enable(priv->device);
 	ret = register_c_can_dev(dev);
 	if (ret) {
 		dev_err(&pdev->dev, "registering %s failed (err=%d)\n",

@@ -398,6 +400,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 	return 0;
 
 exit_free_device:
+	pm_runtime_disable(priv->device);
 	free_c_can_dev(dev);
 exit:
 	dev_err(&pdev->dev, "probe failed\n");

@@ -408,9 +411,10 @@ exit:
 static int c_can_plat_remove(struct platform_device *pdev)
 {
 	struct net_device *dev = platform_get_drvdata(pdev);
+	struct c_can_priv *priv = netdev_priv(dev);
 
 	unregister_c_can_dev(dev);
-
+	pm_runtime_disable(priv->device);
 	free_c_can_dev(dev);
 
 	return 0;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #131 lore raw

PATCH 131/221 can: m_can: m_can_do_rx_poll(): fix extraneous msg loss warning

From: Torin Cooper-Bennun <[email protected]>

[ Upstream commit c0e399f3baf42279f48991554240af8c457535d1 ]

Message loss from RX FIFO 0 is already handled in m_can_handle_lost_msg(), with netdev output included.

Removing this warning also improves driver performance under heavy load, where m_can_do_rx_poll() may be called many times before this interrupt is cleared, causing this message to be output many times (thanks Mariusz Madej for this report).

Fixes e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support")

Link https://lore.kernel.org/r/[email protected] open here

Reported-by Mariusz Madej <[email protected]>

Signed-off-by Torin Cooper-Bennun <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/m_can/m_can.c | 3 ---
 1 file changed, 3 deletions(-)

drivers/net/can/m_can/m_can.c +0 -3

index 3c1e37975168..6952d5b396e8 100644
@@ -502,9 +502,6 @@ static int m_can_do_rx_poll(struct net_device *dev, int quota)
 	}
 
 	while ((rxfs & RXFS_FFL_MASK) && (quota > 0)) {
-		if (rxfs & RXFS_RFL)
-			netdev_warn(dev, "Rx FIFO 0 Message Lost\n");
-
 		m_can_read_fifo(dev, rxfs);
 
 		quota--;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #132 lore raw

PATCH 132/221 can: m_can: m_can_rx_peripheral(): fix RX being blocked by errors

From: Torin Cooper-Bennun <[email protected]>

[ Upstream commit e98d9ee64ee2cc9b1d1a8e26610ec4d0392ebe50 ]

For M_CAN peripherals, m_can_rx_handler() was called with quota = 1, which caused any error handling to block RX from taking place until the next time the IRQ handler is called. This had been observed to cause RX to be blocked indefinitely in some cases.

This is fixed by calling m_can_rx_handler with a sensibly high quota.

Fixes f524f829b75a ("can: m_can: Create a m_can platform framework")

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Torin Cooper-Bennun <[email protected]>

Signed-off-by Marc Kleine-Budde <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/can/m_can/m_can.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/net/can/m_can/m_can.c +1 -1

index 6952d5b396e8..6f0bf5db885c 100644
@@ -882,7 +882,7 @@ static int m_can_rx_peripheral(struct net_device *dev)
 {
 	struct m_can_classdev *cdev = netdev_priv(dev);
 
-	m_can_rx_handler(dev, 1);
+	m_can_rx_handler(dev, M_CAN_NAPI_WEIGHT);
 
 	m_can_enable_all_interrupts(cdev);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #133 lore raw

PATCH 133/221 mac80211: fix rate mask reset

Link https://lore.kernel.org/r/20210212112213.36b38078f569.I8546a20c80bc1669058eb453e213630b846e107b@changeid open here

From: Johannes Berg <[email protected]>

[ Upstream commit 1944015fe9c1d9fa5e9eb7ffbbb5ef8954d6753b ]

Coverity reported the strange "if (~...)" condition that's always true. It suggested that ! was intended instead of ~, but upon further analysis I'm convinced that what really was intended was a comparison to 0xff/0xffff (in HT/VHT cases respectively), since this indicates that all of the rates are enabled.

Change the comparison accordingly.

I'm guessing this never really mattered because a reset to not having a rate mask is basically equivalent to having a mask that enables all rates.

Reported-by Colin Ian King <[email protected]>

Fixes 2ffbe6d33366 ("mac80211: fix and optimize MCS mask handling")

Fixes b119ad6e726c ("mac80211: add rate mask logic for vht rates")

Reviewed-by Colin Ian King <[email protected]>

Signed-off-by Johannes Berg <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/mac80211/cfg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

net/mac80211/cfg.c +2 -2

index 7276e66ae435..2bf6271d9e3f 100644
@@ -2961,14 +2961,14 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 			continue;
 
 		for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
-			if (~sdata->rc_rateidx_mcs_mask[i][j]) {
+			if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
 				sdata->rc_has_mcs_mask[i] = true;
 				break;
 			}
 		}
 
 		for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
-			if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
+			if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
 				sdata->rc_has_vht_mcs_mask[i] = true;
 				break;
 			}

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #134 lore raw

PATCH 134/221 mac80211: Allow HE operation to be longer than expected.

From: Brian Norris <[email protected]>

[ Upstream commit 0f7e90faddeef53a3568f449a0c3992d77510b66 ]

We observed some Cisco APs sending the following HE Operation IE in associate response:

ff 0a 24 f4 3f 00 01 fc ff 00 00 00

Its HE operation parameter is 0x003ff4, so the expected total length is 7 which does not match the actual length = 10. This causes association failing with "HE AP is missing HE Capability/operation."

According to P802.11ax_D4 Table9-94, HE operation is extensible, and according to 802.11-2016 10.27.8, STA should discard the part beyond the maximum length and parse the truncated element.

Allow HE operation element to be longer than expected to handle this case and future extensions.

Fixes e4d005b80dee ("mac80211: refactor extended element parsing")

Signed-off-by Brian Norris <[email protected]>

Signed-off-by Yen-lin Lai <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

Signed-off-by Johannes Berg <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/mac80211/mlme.c | 2 +-
 net/mac80211/util.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

net/mac80211/mlme.c +1 -1

index 6adfcb9c06dc..3f483e84d5df 100644
@@ -5023,7 +5023,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 		he_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_OPERATION,
 						  ies->data, ies->len);
 		if (he_oper_ie &&
-		    he_oper_ie[1] == ieee80211_he_oper_size(&he_oper_ie[3]))
+		    he_oper_ie[1] >= ieee80211_he_oper_size(&he_oper_ie[3]))
 			he_oper = (void *)(he_oper_ie + 3);
 		else
 			he_oper = NULL;

net/mac80211/util.c +1 -1

index 94e624e9439b..d8f9fb0646a4 100644
@@ -967,7 +967,7 @@ static void ieee80211_parse_extension_element(u32 *crc,
 		break;
 	case WLAN_EID_EXT_HE_OPERATION:
 		if (len >= sizeof(*elems->he_operation) &&
-		    len == ieee80211_he_oper_size(data) - 1) {
+		    len >= ieee80211_he_oper_size(data) - 1) {
 			if (crc)
 				*crc = crc32_be(*crc, (void *)elem,
 						elem->datalen + 2);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #135 lore raw

PATCH 135/221 selftests/net: fix warnings on reuseaddr_ports_exhausted

From: Carlos Llamas <[email protected]>

[ Upstream commit 81f711d67a973bf8a6db9556faf299b4074d536e ]

Fix multiple warnings seen with gcc 10.2.1:
reuseaddr_ports_exhausted.c:32:41: warning: missing braces around initializer [-Wmissing-braces]

   32 | struct reuse_opts unreusable_opts[12] = {
      |                                         ^
   33 |  {0, 0, 0, 0},
      |   {   } {   }

Fixes 7f204a7de8b0 ("selftests: net: Add SO_REUSEADDR test to check if 4-tuples are fully utilized.")

Signed-off-by Carlos Llamas <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../selftests/net/reuseaddr_ports_exhausted.c | 32 +++++++++----------
 1 file changed, 16 insertions(+), 16 deletions(-)

tools/testing/selftests/net/reuseaddr_ports_exhausted.c +16 ~~-16~~

index 7b01b7c2ec10..066efd30e294 100644
@@ -30,25 +30,25 @@ struct reuse_opts {
 };
 
 struct reuse_opts unreusable_opts[12] = {
-	{0, 0, 0, 0},
-	{0, 0, 0, 1},
-	{0, 0, 1, 0},
-	{0, 0, 1, 1},
-	{0, 1, 0, 0},
-	{0, 1, 0, 1},
-	{0, 1, 1, 0},
-	{0, 1, 1, 1},
-	{1, 0, 0, 0},
-	{1, 0, 0, 1},
-	{1, 0, 1, 0},
-	{1, 0, 1, 1},
+	{{0, 0}, {0, 0}},
+	{{0, 0}, {0, 1}},
+	{{0, 0}, {1, 0}},
+	{{0, 0}, {1, 1}},
+	{{0, 1}, {0, 0}},
+	{{0, 1}, {0, 1}},
+	{{0, 1}, {1, 0}},
+	{{0, 1}, {1, 1}},
+	{{1, 0}, {0, 0}},
+	{{1, 0}, {0, 1}},
+	{{1, 0}, {1, 0}},
+	{{1, 0}, {1, 1}},
 };
 
 struct reuse_opts reusable_opts[4] = {
-	{1, 1, 0, 0},
-	{1, 1, 0, 1},
-	{1, 1, 1, 0},
-	{1, 1, 1, 1},
+	{{1, 1}, {0, 0}},
+	{{1, 1}, {0, 1}},
+	{{1, 1}, {1, 0}},
+	{{1, 1}, {1, 1}},
 };
 
 int bind_port(struct __test_metadata *_metadata, int reuseaddr, int reuseport)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #136 lore raw

PATCH 136/221 nfp: flower: fix unsupported pre_tunnel flows

From: Louis Peens <[email protected]>

[ Upstream commit 982e5ee23d764fe6158f67a7813d416335e978b0 ]

There are some pre_tunnel flows combinations which are incorrectly being offloaded without proper support, fix these.

- Matching on MPLS is not supported for pre_tun.
- Match on IPv4/IPv6 layer must be present.
- Destination MAC address must match pre_tun.dev MAC

Fixes 120ffd84a9ec ("nfp: flower: verify pre-tunnel rules")

Signed-off-by Louis Peens <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../ethernet/netronome/nfp/flower/offload.c    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

drivers/net/ethernet/netronome/nfp/flower/offload.c +18 -0

index 1c59aff2163c..d72225d64a75 100644
@@ -1142,6 +1142,12 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app,
 		return -EOPNOTSUPP;
 	}
 
+	if (!(key_layer & NFP_FLOWER_LAYER_IPV4) &&
+	    !(key_layer & NFP_FLOWER_LAYER_IPV6)) {
+		NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: match on ipv4/ipv6 eth_type must be present");
+		return -EOPNOTSUPP;
+	}
+
 	/* Skip fields known to exist. */
 	mask += sizeof(struct nfp_flower_meta_tci);
 	ext += sizeof(struct nfp_flower_meta_tci);

@@ -1152,6 +1158,13 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app,
 	mask += sizeof(struct nfp_flower_in_port);
 	ext += sizeof(struct nfp_flower_in_port);
 
+	/* Ensure destination MAC address matches pre_tun_dev. */
+	mac = (struct nfp_flower_mac_mpls *)ext;
+	if (memcmp(&mac->mac_dst[0], flow->pre_tun_rule.dev->dev_addr, 6)) {
+		NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: dest MAC must match output dev MAC");
+		return -EOPNOTSUPP;
+	}
+
 	/* Ensure destination MAC address is fully matched. */
 	mac = (struct nfp_flower_mac_mpls *)mask;
 	if (!is_broadcast_ether_addr(&mac->mac_dst[0])) {

@@ -1159,6 +1172,11 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app,
 		return -EOPNOTSUPP;
 	}
 
+	if (mac->mpls_lse) {
+		NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: MPLS not supported");
+		return -EOPNOTSUPP;
+	}
+
 	mask += sizeof(struct nfp_flower_mac_mpls);
 	ext += sizeof(struct nfp_flower_mac_mpls);
 	if (key_layer & NFP_FLOWER_LAYER_IPV4 ||

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:23 UTC #137 lore raw

PATCH 137/221 nfp: flower: add ipv6 bit to pre_tunnel control message

From: Louis Peens <[email protected]>

[ Upstream commit 5c4f5e19d6a8e159127b9d653bb67e0dc7a28047 ]

Differentiate between ipv4 and ipv6 flows when configuring the pre_tunnel table to prevent them trampling each other in the table.

Fixes 783461604f7e ("nfp: flower: update flow merge code to support IPv6 tunnels")

Signed-off-by Louis Peens <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../ethernet/netronome/nfp/flower/tunnel_conf.c   | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c +13 -2

index 7248d248f604..d19c02e99114 100644
@@ -16,8 +16,9 @@
 #define NFP_FL_MAX_ROUTES               32
 
 #define NFP_TUN_PRE_TUN_RULE_LIMIT	32
-#define NFP_TUN_PRE_TUN_RULE_DEL	0x1
-#define NFP_TUN_PRE_TUN_IDX_BIT		0x8
+#define NFP_TUN_PRE_TUN_RULE_DEL	BIT(0)
+#define NFP_TUN_PRE_TUN_IDX_BIT		BIT(3)
+#define NFP_TUN_PRE_TUN_IPV6_BIT	BIT(7)
 
 /**
  * struct nfp_tun_pre_run_rule - rule matched before decap

@@ -1268,6 +1269,7 @@ int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
 {
 	struct nfp_flower_priv *app_priv = app->priv;
 	struct nfp_tun_offloaded_mac *mac_entry;
+	struct nfp_flower_meta_tci *key_meta;
 	struct nfp_tun_pre_tun_rule payload;
 	struct net_device *internal_dev;
 	int err;

@@ -1290,6 +1292,15 @@ int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
 	if (!mac_entry)
 		return -ENOENT;
 
+	/* Set/clear IPV6 bit. cpu_to_be16() swap will lead to MSB being
+	 * set/clear for port_idx.
+	 */
+	key_meta = (struct nfp_flower_meta_tci *)flow->unmasked_data;
+	if (key_meta->nfp_flow_key_layer & NFP_FLOWER_LAYER_IPV6)
+		mac_entry->index |= NFP_TUN_PRE_TUN_IPV6_BIT;
+	else
+		mac_entry->index &= ~NFP_TUN_PRE_TUN_IPV6_BIT;
+
 	payload.port_idx = cpu_to_be16(mac_entry->index);
 
 	/* Copy mac id and vlan to flow - dev may not exist at delete time. */

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #138 lore raw

PATCH 138/221 nfp: flower: fix pre_tun mask id allocation

From: Louis Peens <[email protected]>

[ Upstream commit d8ce0275e45ec809a33f98fc080fe7921b720dfb ]

pre_tun_rule flows does not follow the usual add-flow path, instead they are used to update the pre_tun table on the firmware. This means that if the mask-id gets allocated here the firmware will never see the "NFP_FL_META_FLAG_MANAGE_MASK" flag for the specific mask id, which triggers the allocation on the firmware side. This leads to the firmware mask being corrupted and causing all sorts of strange behaviour.

Fixes f12725d98cbe ("nfp: flower: offload pre-tunnel rules")

Signed-off-by Louis Peens <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../ethernet/netronome/nfp/flower/metadata.c  | 24 +++++++++++++------
 1 file changed, 17 insertions(+), 7 deletions(-)

drivers/net/ethernet/netronome/nfp/flower/metadata.c +17 -7

index 5defd31d481c..aa06fcb38f8b 100644
@@ -327,8 +327,14 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
 		goto err_free_ctx_entry;
 	}
 
+	/* Do net allocate a mask-id for pre_tun_rules. These flows are used to
+	 * configure the pre_tun table and are never actually send to the
+	 * firmware as an add-flow message. This causes the mask-id allocation
+	 * on the firmware to get out of sync if allocated here.
+	 */
 	new_mask_id = 0;
-	if (!nfp_check_mask_add(app, nfp_flow->mask_data,
+	if (!nfp_flow->pre_tun_rule.dev &&
+	    !nfp_check_mask_add(app, nfp_flow->mask_data,
 				nfp_flow->meta.mask_len,
 				&nfp_flow->meta.flags, &new_mask_id)) {
 		NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot allocate a new mask id");

@@ -359,7 +365,8 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
 			goto err_remove_mask;
 		}
 
-		if (!nfp_check_mask_remove(app, nfp_flow->mask_data,
+		if (!nfp_flow->pre_tun_rule.dev &&
+		    !nfp_check_mask_remove(app, nfp_flow->mask_data,
 					   nfp_flow->meta.mask_len,
 					   NULL, &new_mask_id)) {
 			NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot release mask id");

@@ -374,8 +381,10 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
 	return 0;
 
 err_remove_mask:
-	nfp_check_mask_remove(app, nfp_flow->mask_data, nfp_flow->meta.mask_len,
-			      NULL, &new_mask_id);
+	if (!nfp_flow->pre_tun_rule.dev)
+		nfp_check_mask_remove(app, nfp_flow->mask_data,
+				      nfp_flow->meta.mask_len,
+				      NULL, &new_mask_id);
 err_remove_rhash:
 	WARN_ON_ONCE(rhashtable_remove_fast(&priv->stats_ctx_table,
 					    &ctx_entry->ht_node,

@@ -406,9 +415,10 @@ int nfp_modify_flow_metadata(struct nfp_app *app,
 
 	__nfp_modify_flow_metadata(priv, nfp_flow);
 
-	nfp_check_mask_remove(app, nfp_flow->mask_data,
-			      nfp_flow->meta.mask_len, &nfp_flow->meta.flags,
-			      &new_mask_id);
+	if (!nfp_flow->pre_tun_rule.dev)
+		nfp_check_mask_remove(app, nfp_flow->mask_data,
+				      nfp_flow->meta.mask_len, &nfp_flow->meta.flags,
+				      &new_mask_id);
 
 	/* Update flow payload with mask ids. */
 	nfp_flow->unmasked_data[NFP_FL_MASK_ID_LOCATION] = new_mask_id;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #139 lore raw

PATCH 139/221 ftrace: Fix modify_ftrace_direct.

From: Alexei Starovoitov <[email protected]>

[ Upstream commit 8a141dd7f7060d1e64c14a5257e0babae20ac99b ]

The following sequence of commands:
register_ftrace_direct(ip, addr1);
modify_ftrace_direct(ip, addr1, addr2);
unregister_ftrace_direct(ip, addr2);
will cause the kernel to warn:

[   30.179191] WARNING: CPU: 2 PID: 1961 at kernel/trace/ftrace.c:5223 unregister_ftrace_direct+0x130/0x150
[   30.180556] CPU: 2 PID: 1961 Comm: test_progs    W  O      5.12.0-rc2-00378-g86bc10a0a711-dirty #3246
[   30.182453] RIP: 0010:unregister_ftrace_direct+0x130/0x150

When modify_ftrace_direct() changes the addr from old to new it should update the addr stored in ftrace_direct_funcs. Otherwise the final unregister_ftrace_direct() won't find the address and will cause the splat.

Fixes 0567d6809182 ("ftrace: Add modify_ftrace_direct()")

Signed-off-by Alexei Starovoitov <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Reviewed-by Steven Rostedt (VMware) <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 kernel/trace/ftrace.c | 43 ++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 5 deletions(-)

kernel/trace/ftrace.c +38 -5

index 9c1bba8cc51b..82041bbf8fc2 100644
@@ -5045,6 +5045,20 @@ struct ftrace_direct_func *ftrace_find_direct_func(unsigned long addr)
 	return NULL;
 }
 
+static struct ftrace_direct_func *ftrace_alloc_direct_func(unsigned long addr)
+{
+	struct ftrace_direct_func *direct;
+
+	direct = kmalloc(sizeof(*direct), GFP_KERNEL);
+	if (!direct)
+		return NULL;
+	direct->addr = addr;
+	direct->count = 0;
+	list_add_rcu(&direct->next, &ftrace_direct_funcs);
+	ftrace_direct_func_count++;
+	return direct;
+}
+
 /**
  * register_ftrace_direct - Call a custom trampoline directly
  * @ip: The address of the nop at the beginning of a function

@@ -5120,15 +5134,11 @@ int register_ftrace_direct(unsigned long ip, unsigned long addr)
 
 	direct = ftrace_find_direct_func(addr);
 	if (!direct) {
-		direct = kmalloc(sizeof(*direct), GFP_KERNEL);
+		direct = ftrace_alloc_direct_func(addr);
 		if (!direct) {
 			kfree(entry);
 			goto out_unlock;
 		}
-		direct->addr = addr;
-		direct->count = 0;
-		list_add_rcu(&direct->next, &ftrace_direct_funcs);
-		ftrace_direct_func_count++;
 	}
 
 	entry->ip = ip;

@@ -5329,6 +5339,7 @@ int __weak ftrace_modify_direct_caller(struct ftrace_func_entry *entry,
 int modify_ftrace_direct(unsigned long ip,
 			 unsigned long old_addr, unsigned long new_addr)
 {
+	struct ftrace_direct_func *direct, *new_direct = NULL;
 	struct ftrace_func_entry *entry;
 	struct dyn_ftrace *rec;
 	int ret = -ENODEV;

@@ -5344,6 +5355,20 @@ int modify_ftrace_direct(unsigned long ip,
 	if (entry->direct != old_addr)
 		goto out_unlock;
 
+	direct = ftrace_find_direct_func(old_addr);
+	if (WARN_ON(!direct))
+		goto out_unlock;
+	if (direct->count > 1) {
+		ret = -ENOMEM;
+		new_direct = ftrace_alloc_direct_func(new_addr);
+		if (!new_direct)
+			goto out_unlock;
+		direct->count--;
+		new_direct->count++;
+	} else {
+		direct->addr = new_addr;
+	}
+
 	/*
 	 * If there's no other ftrace callback on the rec->ip location,
 	 * then it can be changed directly by the architecture.

@@ -5357,6 +5382,14 @@ int modify_ftrace_direct(unsigned long ip,
 		ret = 0;
 	}
 
+	if (unlikely(ret && new_direct)) {
+		direct->count++;
+		list_del_rcu(&new_direct->next);
+		synchronize_rcu_tasks();
+		kfree(new_direct);
+		ftrace_direct_func_count--;
+	}
+
  out_unlock:
 	mutex_unlock(&ftrace_lock);
 	mutex_unlock(&direct_mutex);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #140 lore raw

PATCH 140/221 drm/msm/dsi: fix check-before-set in the 7nm dsi_pll code

From: Dmitry Baryshkov <[email protected]>

[ Upstream commit 3b24cdfc721a5f1098da22f9f68ff5f4a5efccc9 ]

Fix setting min/max DSI PLL rate for the V4.1 7nm DSI PLL (used on sm8250). Current code checks for pll->type before it is set (as it is set in the msm_dsi_pll_init() after calling device-specific functions.

Cc Jonathan Marek <[email protected]>

Fixes 1ef7c99d145c ("drm/msm/dsi: add support for 7nm DSI PHY/PLL")

Signed-off-by Dmitry Baryshkov <[email protected]>

Signed-off-by Rob Clark <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/gpu/drm/msm/dsi/pll/dsi_pll.c     | 2 +-
 drivers/gpu/drm/msm/dsi/pll/dsi_pll.h     | 6 ++++--
 drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c | 5 +++--
 3 files changed, 8 insertions(+), 5 deletions(-)

drivers/gpu/drm/msm/dsi/pll/dsi_pll.c +1 -1

index a45fe95aff49..3dc65877fa10 100644
@@ -163,7 +163,7 @@ struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
 		break;
 	case MSM_DSI_PHY_7NM:
 	case MSM_DSI_PHY_7NM_V4_1:
-		pll = msm_dsi_pll_7nm_init(pdev, id);
+		pll = msm_dsi_pll_7nm_init(pdev, type, id);
 		break;
 	default:
 		pll = ERR_PTR(-ENXIO);

drivers/gpu/drm/msm/dsi/pll/dsi_pll.h +4 -2

index 3405982a092c..bbecb1de5678 100644
@@ -117,10 +117,12 @@ msm_dsi_pll_10nm_init(struct platform_device *pdev, int id)
 }
 #endif
 #ifdef CONFIG_DRM_MSM_DSI_7NM_PHY
-struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id);
+struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev,
+					enum msm_dsi_phy_type type, int id);
 #else
 static inline struct msm_dsi_pll *
-msm_dsi_pll_7nm_init(struct platform_device *pdev, int id)
+msm_dsi_pll_7nm_init(struct platform_device *pdev,
+					enum msm_dsi_phy_type type, int id)
 {
 	return ERR_PTR(-ENODEV);
 }

drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c +3 -2

index 93bf142e4a4e..c1f6708367ae 100644
@@ -852,7 +852,8 @@ err_base_clk_hw:
 	return ret;
 }
 
-struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id)
+struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev,
+					enum msm_dsi_phy_type type, int id)
 {
 	struct dsi_pll_7nm *pll_7nm;
 	struct msm_dsi_pll *pll;

@@ -885,7 +886,7 @@ struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id)
 	pll = &pll_7nm->base;
 	pll->min_rate = 1000000000UL;
 	pll->max_rate = 3500000000UL;
-	if (pll->type == MSM_DSI_PHY_7NM_V4_1) {
+	if (type == MSM_DSI_PHY_7NM_V4_1) {
 		pll->min_rate = 600000000UL;
 		pll->max_rate = (unsigned long)5000000000ULL;
 		/* workaround for max rate overflowing on 32-bit builds: */

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:25 UTC #141 lore raw

PATCH 141/221 ionic: linearize tso skb with too many frags

From: Shannon Nelson <[email protected]>

[ Upstream commit d2c21422323b06938b3c070361dc544f047489d7 ]

We were linearizing non-TSO skbs that had too many frags, but we weren't checking number of frags on TSO skbs. This could lead to a bad page reference when we received a TSO skb with more frags than the Tx descriptor could support.

v2: use gso_segs rather than yet another division
don't rework the check on the nr_frags

Fixes 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")

Signed-off-by Shannon Nelson <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/pensando/ionic/ionic_txrx.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

drivers/net/ethernet/pensando/ionic/ionic_txrx.c +7 -6

index a81feffb09b8..909eca14f647 100644
@@ -1077,15 +1077,17 @@ static int ionic_tx_descs_needed(struct ionic_queue *q, struct sk_buff *skb)
 {
 	int sg_elems = q->lif->qtype_info[IONIC_QTYPE_TXQ].max_sg_elems;
 	struct ionic_tx_stats *stats = q_to_tx_stats(q);
+	int ndescs;
 	int err;
 
-	/* If TSO, need roundup(skb->len/mss) descs */
+	/* Each desc is mss long max, so a descriptor for each gso_seg */
 	if (skb_is_gso(skb))
-		return (skb->len / skb_shinfo(skb)->gso_size) + 1;
+		ndescs = skb_shinfo(skb)->gso_segs;
+	else
+		ndescs = 1;
 
-	/* If non-TSO, just need 1 desc and nr_frags sg elems */
 	if (skb_shinfo(skb)->nr_frags <= sg_elems)
-		return 1;
+		return ndescs;
 
 	/* Too many frags, so linearize */
 	err = skb_linearize(skb);

@@ -1094,8 +1096,7 @@ static int ionic_tx_descs_needed(struct ionic_queue *q, struct sk_buff *skb)
 
 	stats->linearize++;
 
-	/* Need 1 desc and zero sg elems */
-	return 1;
+	return ndescs;
 }
 
 static int ionic_maybe_stop_tx(struct ionic_queue *q, int ndescs)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #142 lore raw

PATCH 142/221 net/sched: cls_flower: fix only mask bit check in the validate_ct_state

From: wenxu <[email protected]>

[ Upstream commit afa536d8405a9ca36e45ba035554afbb8da27b82 ]

The ct_state validate should not only check the mask bit and also check mask_bit & key_bit..
For the +new+est case example, The 'new' and 'est' bits should be set in both state_mask and state flags. Or the -new-est case also will be reject by kernel.
When Openvswitch with two flows ct_state=+trk+new,action=commit,forward ct_state=+trk+est,action=forward

A packet go through the kernel and the contrack state is invalid, The ct_state will be +trk-inv. Upcall to the ovs-vswitchd, the finally dp action will be drop with -new-est+trk.

Fixes 1bcc51ac0731 ("net/sched: cls_flower: Reject invalid ct_state flags rules")

Fixes 3aed8b63336c ("net/sched: cls_flower: validate ct_state for invalid and reply flags")

Signed-off-by wenxu <[email protected]>

Reviewed-by Marcelo Ricardo Leitner <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/sched/cls_flower.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

net/sched/cls_flower.c +1 -1

index 46c1b3e9f66a..14316ba9b3b3 100644
@@ -1432,7 +1432,7 @@ static int fl_set_key_ct(struct nlattr **tb,
 			       &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
 			       sizeof(key->ct_state));
 
-		err = fl_validate_ct_state(mask->ct_state,
+		err = fl_validate_ct_state(key->ct_state & mask->ct_state,
 					   tb[TCA_FLOWER_KEY_CT_STATE_MASK],
 					   extack);
 		if (err)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #143 lore raw

PATCH 143/221 netfilter: nftables: report EOPNOTSUPP on unsupported flowtable flags

From: Pablo Neira Ayuso <[email protected]>

[ Upstream commit 7e6136f1b7272b2202817cff37ada355eb5e6784 ]

Error was not set accordingly.

Fixes 8bb69f3b2918 ("netfilter: nf_tables: add flowtable offload control plane")

Signed-off-by Pablo Neira Ayuso <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/netfilter/nf_tables_api.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

net/netfilter/nf_tables_api.c +3 -1

index 8739ef135156..7cdbe8733540 100644
@@ -6753,8 +6753,10 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
 	if (nla[NFTA_FLOWTABLE_FLAGS]) {
 		flowtable->data.flags =
 			ntohl(nla_get_be32(nla[NFTA_FLOWTABLE_FLAGS]));
-		if (flowtable->data.flags & ~NFT_FLOWTABLE_MASK)
+		if (flowtable->data.flags & ~NFT_FLOWTABLE_MASK) {
+			err = -EOPNOTSUPP;
 			goto err3;
+		}
 	}
 
 	write_pnet(&flowtable->data.net, net);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #144 lore raw

PATCH 144/221 netfilter: nftables: allow to update flowtable flags

From: Pablo Neira Ayuso <[email protected]>

[ Upstream commit 7b35582cd04ace2fd1807c1b624934e465cc939d ]

Honor flowtable flags from the control update path. Disallow disabling to toggle hardware offload support though.

Fixes 8bb69f3b2918 ("netfilter: nf_tables: add flowtable offload control plane")

Signed-off-by Pablo Neira Ayuso <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 include/net/netfilter/nf_tables.h |  3 +++
 net/netfilter/nf_tables_api.c     | 15 +++++++++++++++
 2 files changed, 18 insertions(+)

include/net/netfilter/nf_tables.h +3 -0

index c1c0a4ff92ae..ed4a9d098164 100644
@@ -1508,6 +1508,7 @@ struct nft_trans_flowtable {
 	struct nft_flowtable		*flowtable;
 	bool				update;
 	struct list_head		hook_list;
+	u32				flags;
 };
 
 #define nft_trans_flowtable(trans)	\

@@ -1516,6 +1517,8 @@ struct nft_trans_flowtable {
 	(((struct nft_trans_flowtable *)trans->data)->update)
 #define nft_trans_flowtable_hooks(trans)	\
 	(((struct nft_trans_flowtable *)trans->data)->hook_list)
+#define nft_trans_flowtable_flags(trans)	\
+	(((struct nft_trans_flowtable *)trans->data)->flags)
 
 int __init nft_chain_filter_init(void);
 void nft_chain_filter_fini(void);

net/netfilter/nf_tables_api.c +15 -0

index 7cdbe8733540..978a968d7aed 100644
@@ -6632,6 +6632,7 @@ static int nft_flowtable_update(struct nft_ctx *ctx, const struct nlmsghdr *nlh,
 	struct nft_hook *hook, *next;
 	struct nft_trans *trans;
 	bool unregister = false;
+	u32 flags;
 	int err;
 
 	err = nft_flowtable_parse_hook(ctx, nla[NFTA_FLOWTABLE_HOOK],

@@ -6646,6 +6647,17 @@ static int nft_flowtable_update(struct nft_ctx *ctx, const struct nlmsghdr *nlh,
 		}
 	}
 
+	if (nla[NFTA_FLOWTABLE_FLAGS]) {
+		flags = ntohl(nla_get_be32(nla[NFTA_FLOWTABLE_FLAGS]));
+		if (flags & ~NFT_FLOWTABLE_MASK)
+			return -EOPNOTSUPP;
+		if ((flowtable->data.flags & NFT_FLOWTABLE_HW_OFFLOAD) ^
+		    (flags & NFT_FLOWTABLE_HW_OFFLOAD))
+			return -EOPNOTSUPP;
+	} else {
+		flags = flowtable->data.flags;
+	}
+
 	err = nft_register_flowtable_net_hooks(ctx->net, ctx->table,
 					       &flowtable_hook.list, flowtable);
 	if (err < 0)

@@ -6659,6 +6671,7 @@ static int nft_flowtable_update(struct nft_ctx *ctx, const struct nlmsghdr *nlh,
 		goto err_flowtable_update_hook;
 	}
 
+	nft_trans_flowtable_flags(trans) = flags;
 	nft_trans_flowtable(trans) = flowtable;
 	nft_trans_flowtable_update(trans) = true;
 	INIT_LIST_HEAD(&nft_trans_flowtable_hooks(trans));

@@ -7968,6 +7981,8 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
 			break;
 		case NFT_MSG_NEWFLOWTABLE:
 			if (nft_trans_flowtable_update(trans)) {
+				nft_trans_flowtable(trans)->data.flags =
+					nft_trans_flowtable_flags(trans);
 				nf_tables_flowtable_notify(&trans->ctx,
 							   nft_trans_flowtable(trans),
 							   &nft_trans_flowtable_hooks(trans),

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #145 lore raw

PATCH 145/221 netfilter: flowtable: Make sure GC works periodically in idle system

From: Yinjun Zhang <[email protected]>

[ Upstream commit 740b486a8d1f966e68ac0666f1fd57441a7cda94 ]

Currently flowtable's GC work is initialized as deferrable, which means GC cannot work on time when system is idle. So the hardware offloaded flow may be deleted for timeout, since its used time is not timely updated.

Resolve it by initializing the GC work as delayed work instead of deferrable.

Fixes c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support")

Signed-off-by Yinjun Zhang <[email protected]>

Signed-off-by Louis Peens <[email protected]>

Signed-off-by Pablo Neira Ayuso <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/netfilter/nf_flow_table_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

net/netfilter/nf_flow_table_core.c +1 -1

index 4a4acbba78ff..b03feb6e1226 100644
@@ -506,7 +506,7 @@ int nf_flow_table_init(struct nf_flowtable *flowtable)
 {
 	int err;
 
-	INIT_DEFERRABLE_WORK(&flowtable->gc_work, nf_flow_offload_work_gc);
+	INIT_DELAYED_WORK(&flowtable->gc_work, nf_flow_offload_work_gc);
 	flow_block_init(&flowtable->flow_block);
 	init_rwsem(&flowtable->flow_block_lock);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #146 lore raw

PATCH 146/221 libbpf: Fix error path in bpf_object__elf_init()

From: Namhyung Kim <[email protected]>

[ Upstream commit 8f3f5792f2940c16ab63c614b26494c8689c9c1e ]

When it failed to get section names, it should call into bpf_object__elf_finish() like others.

Fixes 88a82120282b ("libbpf: Factor out common ELF operations and improve logging")

Signed-off-by Namhyung Kim <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Signed-off-by Sasha Levin <[email protected]>

---
 tools/lib/bpf/libbpf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

tools/lib/bpf/libbpf.c +2 -1

index b954db52bb80..95eef7ebdac5 100644
@@ -1162,7 +1162,8 @@ static int bpf_object__elf_init(struct bpf_object *obj)
 	if (!elf_rawdata(elf_getscn(obj->efile.elf, obj->efile.shstrndx), NULL)) {
 		pr_warn("elf: failed to get section names strings from %s: %s\n",
 			obj->path, elf_errmsg(-1));
-		return -LIBBPF_ERRNO__FORMAT;
+		err = -LIBBPF_ERRNO__FORMAT;
+		goto errout;
 	}
 
 	/* Old LLVM set e_machine to EM_NONE */

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:26 UTC #147 lore raw

PATCH 147/221 libbpf: Use SOCK_CLOEXEC when opening the netlink socket

From: Kumar Kartikeya Dwivedi <[email protected]>

[ Upstream commit 58bfd95b554f1a23d01228672f86bb489bdbf4ba ]

Otherwise, there exists a small window between the opening and closing of the socket fd where it may leak into processes launched by some other thread.

Fixes 949abbe88436 ("libbpf: add function to setup XDP")

Signed-off-by Kumar Kartikeya Dwivedi <[email protected]>

Link https://lore.kernel.org/bpf/[email protected] open here

Acked-by Toke Høiland-Jørgensen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 tools/lib/bpf/netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

tools/lib/bpf/netlink.c +1 -1

index 4dd73de00b6f..d2cb28e9ef52 100644
@@ -40,7 +40,7 @@ static int libbpf_netlink_open(__u32 *nl_pid)
 	memset(&sa, 0, sizeof(sa));
 	sa.nl_family = AF_NETLINK;
 
-	sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+	sock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
 	if (sock < 0)
 		return -errno;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #148 lore raw

PATCH 148/221 ARM: dts: imx6ull: fix ubi filesystem mount failed

From: dillon min <[email protected]>

[ Upstream commit e4817a1b6b77db538bc0141c3b138f2df803ce87 ]

For NAND Ecc layout, there is a dependency from old kernel's nand driver setting and current. if old kernel use 4 bit ecc , we should use 4 bit in new kernel either. else will run into following error at filesystem mounting.

So, enable fsl,use-minimum-ecc from device tree, to fix this mismatch

[    9.449265] ubi0: scanning is finished
[    9.463968] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read only 22528 bytes, retry
[    9.486940] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read only 22528 bytes, retry
[    9.509906] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read only 22528 bytes, retry
[    9.532845] ubi0 error: ubi_io_read: error -74 (ECC error) while reading

22528 bytes from PEB 513:4096, read 22528 bytes

Fixes f9ecf10cb88c ("ARM: dts: imx6ull: add MYiR MYS-6ULX SBC")

Signed-off-by dillon min <[email protected]>

Reviewed-by Fabio Estevam <[email protected]>

Signed-off-by Shawn Guo <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts | 1 +
 1 file changed, 1 insertion(+)

arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts +1 -0

index ecbb2cc5b9ab..79cc45728cd2 100644
@@ -14,5 +14,6 @@
 };
 
 &gpmi {
+	fsl,use-minimum-ecc;
 	status = "okay";
 };

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #149 lore raw

PATCH 149/221 ipv6: weaken the v4mapped source check

https://tools.ietf.org/html/draft-itojun-v6ops-v4mapped-harmful-02

From: Jakub Kicinski <[email protected]>

[ Upstream commit dcc32f4f183ab8479041b23a1525d48233df1d43 ]

This reverts commit 6af1799aaf3f1bc8defedddfa00df3192445bbf3.

Commit 6af1799aaf3f ("ipv6: drop incoming packets having a v4mapped source address") introduced an input check against v4mapped addresses. Use of such addresses on the wire is indeed questionable and not allowed on public Internet. As the commit pointed out

lists potential issues.

Unfortunately there are applications which use v4mapped addresses, and breaking them is a clear regression. For example v4mapped addresses (or any semi-valid addresses, really) may be used for uni-direction event streams or packet export.

Since the issue which sparked the addition of the check was with TCP and request_socks in particular push the check down to TCPv6 and DCCP. This restores the ability to receive UDPv6 packets with v4mapped address as the source.

Keep using the IPSTATS_MIB_INHDRERRORS statistic to minimize the user-visible changes.

Fixes 6af1799aaf3f ("ipv6: drop incoming packets having a v4mapped source address")

Reported-by Sunyi Shao <[email protected]>

Acked-by Mat Martineau <[email protected]>

Reviewed-by Eric Dumazet <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/dccp/ipv6.c      |  5 +++++
 net/ipv6/ip6_input.c | 10 ----------
 net/ipv6/tcp_ipv6.c  |  5 +++++
 net/mptcp/subflow.c  |  5 +++++
 4 files changed, 15 insertions(+), 10 deletions(-)

net/dccp/ipv6.c +5 -0

index 78ee1b5acf1f..49f4034bf126 100644
@@ -319,6 +319,11 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (!ipv6_unicast_destination(skb))
 		return 0;	/* discard, don't send a reset here */
 
+	if (ipv6_addr_v4mapped(&ipv6_hdr(skb)->saddr)) {
+		__IP6_INC_STATS(sock_net(sk), NULL, IPSTATS_MIB_INHDRERRORS);
+		return 0;
+	}
+
 	if (dccp_bad_service_code(sk, service)) {
 		dcb->dccpd_reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
 		goto drop;

net/ipv6/ip6_input.c +0 ~~-10~~

index e96304d8a4a7..06d60662717d 100644
@@ -245,16 +245,6 @@ static struct sk_buff *ip6_rcv_core(struct sk_buff *skb, struct net_device *dev,
 	if (ipv6_addr_is_multicast(&hdr->saddr))
 		goto err;
 
-	/* While RFC4291 is not explicit about v4mapped addresses
-	 * in IPv6 headers, it seems clear linux dual-stack
-	 * model can not deal properly with these.
-	 * Security models could be fooled by ::ffff:127.0.0.1 for example.
-	 *
-	 * https://tools.ietf.org/html/draft-itojun-v6ops-v4mapped-harmful-02
-	 */
-	if (ipv6_addr_v4mapped(&hdr->saddr))
-		goto err;
-
 	skb->transport_header = skb->network_header + sizeof(*hdr);
 	IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);

net/ipv6/tcp_ipv6.c +5 -0

index 991dc36f95ff..3f9bb6dd1f98 100644
@@ -1170,6 +1170,11 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (!ipv6_unicast_destination(skb))
 		goto drop;
 
+	if (ipv6_addr_v4mapped(&ipv6_hdr(skb)->saddr)) {
+		__IP6_INC_STATS(sock_net(sk), NULL, IPSTATS_MIB_INHDRERRORS);
+		return 0;
+	}
+
 	return tcp_conn_request(&tcp6_request_sock_ops,
 				&tcp_request_sock_ipv6_ops, sk, skb);

net/mptcp/subflow.c +5 -0

index 16adba172fb9..6317b9bc8681 100644
@@ -398,6 +398,11 @@ static int subflow_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (!ipv6_unicast_destination(skb))
 		goto drop;
 
+	if (ipv6_addr_v4mapped(&ipv6_hdr(skb)->saddr)) {
+		__IP6_INC_STATS(sock_net(sk), NULL, IPSTATS_MIB_INHDRERRORS);
+		return 0;
+	}
+
 	return tcp_conn_request(&mptcp_subflow_request_sock_ops,
 				&subflow_request_sock_ipv6_ops, sk, skb);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #150 lore raw

PATCH 150/221 octeontx2-af: Formatting debugfs entry rsrc_alloc.

From: Rakesh Babu <[email protected]>

[ Upstream commit f7884097141b615b6ce89c16f456a53902b4eec3 ]

With the existing rsrc_alloc's format, there is misalignment for the pcifunc entries whose VF's index is a double digit. This patch fixes this.

    pcifunc     NPA         NIX0        NIX1        SSO GROUP   SSOWS
    TIM         CPT0        CPT1        REE0        REE1
    PF0:VF0     8           5
    PF0:VF1     9                       3
    PF0:VF10    18          10
    PF0:VF11    19                      8
    PF0:VF12    20          11
    PF0:VF13    21                      9
    PF0:VF14    22          12
    PF0:VF15    23                      10
    PF1         0           0

Fixes 23205e6d06d4 ("octeontx2-af: Dump current resource provisioning status")

Signed-off-by Rakesh Babu <[email protected]>

Signed-off-by Sunil Kovvuri Goutham <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../marvell/octeontx2/af/rvu_debugfs.c        | 46 ++++++++++++-------
 1 file changed, 29 insertions(+), 17 deletions(-)

drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +29 ~~-17~~

index 809f50ab0432..c018121d4cc5 100644
@@ -144,12 +144,14 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 					  char __user *buffer,
 					  size_t count, loff_t *ppos)
 {
-	int index, off = 0, flag = 0, go_back = 0, off_prev;
+	int index, off = 0, flag = 0, go_back = 0, len = 0;
 	struct rvu *rvu = filp->private_data;
 	int lf, pf, vf, pcifunc;
 	struct rvu_block block;
 	int bytes_not_copied;
+	int lf_str_size = 12;
 	int buf_size = 2048;
+	char *lfs;
 	char *buf;
 
 	/* don't allow partial reads */

@@ -159,12 +161,18 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 	buf = kzalloc(buf_size, GFP_KERNEL);
 	if (!buf)
 		return -ENOSPC;
-	off +=	scnprintf(&buf[off], buf_size - 1 - off, "\npcifunc\t\t");
+
+	lfs = kzalloc(lf_str_size, GFP_KERNEL);
+	if (!lfs)
+		return -ENOMEM;
+	off +=	scnprintf(&buf[off], buf_size - 1 - off, "%-*s", lf_str_size,
+			  "pcifunc");
 	for (index = 0; index < BLK_COUNT; index++)
-		if (strlen(rvu->hw->block[index].name))
-			off +=	scnprintf(&buf[off], buf_size - 1 - off,
-					  "%*s\t", (index - 1) * 2,
-					  rvu->hw->block[index].name);
+		if (strlen(rvu->hw->block[index].name)) {
+			off += scnprintf(&buf[off], buf_size - 1 - off,
+					 "%-*s", lf_str_size,
+					 rvu->hw->block[index].name);
+		}
 	off += scnprintf(&buf[off], buf_size - 1 - off, "\n");
 	for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
 		for (vf = 0; vf <= rvu->hw->total_vfs; vf++) {

@@ -173,14 +181,15 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 				continue;
 
 			if (vf) {
+				sprintf(lfs, "PF%d:VF%d", pf, vf - 1);
 				go_back = scnprintf(&buf[off],
 						    buf_size - 1 - off,
-						    "PF%d:VF%d\t\t", pf,
-						    vf - 1);
+						    "%-*s", lf_str_size, lfs);
 			} else {
+				sprintf(lfs, "PF%d", pf);
 				go_back = scnprintf(&buf[off],
 						    buf_size - 1 - off,
-						    "PF%d\t\t", pf);
+						    "%-*s", lf_str_size, lfs);
 			}
 
 			off += go_back;

@@ -188,20 +197,22 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 				block = rvu->hw->block[index];
 				if (!strlen(block.name))
 					continue;
-				off_prev = off;
+				len = 0;
+				lfs[len] = '\0';
 				for (lf = 0; lf < block.lf.max; lf++) {
 					if (block.fn_map[lf] != pcifunc)
 						continue;
 					flag = 1;
-					off += scnprintf(&buf[off], buf_size - 1
-							- off, "%3d,", lf);
+					len += sprintf(&lfs[len], "%d,", lf);
 				}
-				if (flag && off_prev != off)
-					off--;
-				else
-					go_back++;
+
+				if (flag)
+					len--;
+				lfs[len] = '\0';
 				off += scnprintf(&buf[off], buf_size - 1 - off,
-						"\t");
+						 "%-*s", lf_str_size, lfs);
+				if (!strlen(lfs))
+					go_back += lf_str_size;
 			}
 			if (!flag)
 				off -= go_back;

@@ -213,6 +224,7 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 	}
 
 	bytes_not_copied = copy_to_user(buffer, buf, off);
+	kfree(lfs);
 	kfree(buf);
 
 	if (bytes_not_copied)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #151 lore raw

PATCH 151/221 octeontx2-af: Modify default KEX profile to extract TX packet fields

From: Stanislaw Kardach <[email protected]>

[ Upstream commit f1517f6f1d6fd97a18836b0fb6921f2cb105eeb4 ]

The current default Key Extraction(KEX) profile can only use RX packet fields while generating the MCAM search key. The profile can't be used for matching TX packet fields. This patch modifies the default KEX profile to add support for extracting TX packet fields into MCAM search key. Enabled Tx KPU packet parsing by configuring TX PKIND in tx_parse_cfg.

Modified the KEX profile to extract 2 bytes of VLAN TCI from an offset of 2 bytes from LB_PTR. The LB_PTR points to the byte offset where the VLAN header starts. The NPC KPU parser profile has been modified to point LB_PTR to the starting byte offset of VLAN header which points to the tpid field.

Signed-off-by Stanislaw Kardach <[email protected]>

Signed-off-by Sunil Goutham <[email protected]>

Signed-off-by Naveen Mamindlapalli <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 .../net/ethernet/marvell/octeontx2/af/npc.h   | 31 ++++++
 .../marvell/octeontx2/af/npc_profile.h        | 99 ++++++++++++++++---
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   |  4 +
 3 files changed, 120 insertions(+), 14 deletions(-)

drivers/net/ethernet/marvell/octeontx2/af/npc.h +31 -0

index 91a9d00e4fb5..407b9477da24 100644
@@ -140,6 +140,15 @@ enum npc_kpu_lh_ltype {
 	NPC_LT_LH_CUSTOM1 = 0xF,
 };
 
+/* NPC port kind defines how the incoming or outgoing packets
+ * are processed. NPC accepts packets from up to 64 pkinds.
+ * Software assigns pkind for each incoming port such as CGX
+ * Ethernet interfaces, LBK interfaces, etc.
+ */
+enum npc_pkind_type {
+	NPC_TX_DEF_PKIND = 63ULL,	/* NIX-TX PKIND */
+};
+
 struct npc_kpu_profile_cam {
 	u8 state;
 	u8 state_mask;

@@ -300,6 +309,28 @@ struct nix_rx_action {
 /* NPC_AF_INTFX_KEX_CFG field masks */
 #define NPC_PARSE_NIBBLE		GENMASK_ULL(30, 0)
 
+/* NPC_PARSE_KEX_S nibble definitions for each field */
+#define NPC_PARSE_NIBBLE_CHAN		GENMASK_ULL(2, 0)
+#define NPC_PARSE_NIBBLE_ERRLEV		BIT_ULL(3)
+#define NPC_PARSE_NIBBLE_ERRCODE	GENMASK_ULL(5, 4)
+#define NPC_PARSE_NIBBLE_L2L3_BCAST	BIT_ULL(6)
+#define NPC_PARSE_NIBBLE_LA_FLAGS	GENMASK_ULL(8, 7)
+#define NPC_PARSE_NIBBLE_LA_LTYPE	BIT_ULL(9)
+#define NPC_PARSE_NIBBLE_LB_FLAGS	GENMASK_ULL(11, 10)
+#define NPC_PARSE_NIBBLE_LB_LTYPE	BIT_ULL(12)
+#define NPC_PARSE_NIBBLE_LC_FLAGS	GENMASK_ULL(14, 13)
+#define NPC_PARSE_NIBBLE_LC_LTYPE	BIT_ULL(15)
+#define NPC_PARSE_NIBBLE_LD_FLAGS	GENMASK_ULL(17, 16)
+#define NPC_PARSE_NIBBLE_LD_LTYPE	BIT_ULL(18)
+#define NPC_PARSE_NIBBLE_LE_FLAGS	GENMASK_ULL(20, 19)
+#define NPC_PARSE_NIBBLE_LE_LTYPE	BIT_ULL(21)
+#define NPC_PARSE_NIBBLE_LF_FLAGS	GENMASK_ULL(23, 22)
+#define NPC_PARSE_NIBBLE_LF_LTYPE	BIT_ULL(24)
+#define NPC_PARSE_NIBBLE_LG_FLAGS	GENMASK_ULL(26, 25)
+#define NPC_PARSE_NIBBLE_LG_LTYPE	BIT_ULL(27)
+#define NPC_PARSE_NIBBLE_LH_FLAGS	GENMASK_ULL(29, 28)
+#define NPC_PARSE_NIBBLE_LH_LTYPE	BIT_ULL(30)
+
 /* NIX Receive Vtag Action Structure */
 #define VTAG0_VALID_BIT		BIT_ULL(15)
 #define VTAG0_TYPE_MASK		GENMASK_ULL(14, 12)

drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h +85 ~~-14~~

129 lines not on this page · raw message

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +4 -0

index 21a89dd76d3c..f6a3cf3e6f23 100644
@@ -1129,6 +1129,10 @@ int rvu_mbox_handler_nix_lf_alloc(struct rvu *rvu,
 	/* Config Rx pkt length, csum checks and apad  enable / disable */
 	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), req->rx_cfg);
 
+	/* Configure pkind for TX parse config */
+	cfg = NPC_TX_DEF_PKIND;
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_PARSE_CFG(nixlf), cfg);
+
 	intf = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
 	err = nix_interface_init(rvu, pcifunc, intf, nixlf);
 	if (err)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #152 lore raw

PATCH 152/221 octeontx2-af: Remove TOS field from MKEX TX

From: Subbaraya Sundeep <[email protected]>

[ Upstream commit ce86c2a531e2f2995ee55ea527c1f39ba1d95f73 ]

The MKEX profile describes what packet fields need to be extracted from the input packet and how to place those packet fields in the output key for MCAM matching. The MKEX profile can be in a way where higher layer packet fields can overwrite lower layer packet fields in output MCAM Key.
Hence MKEX profile is always ensured that there are no overlaps between any of the layers. But the commit 42006910b5ea ("octeontx2-af: cleanup KPU config data") introduced TX TOS field which overlaps with DMAC in MCAM key.
This led to AF driver returning error when TX rule is installed with DMAC as match criteria since DMAC gets overwritten and cannot be supported. This patch fixes the issue by removing TOS field from MKEX TX profile.

Fixes 42006910b5ea ("octeontx2-af: cleanup KPU config data")

Signed-off-by Subbaraya Sundeep <[email protected]>

Signed-off-by Sunil Kovvuri Goutham <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h | 2 --
 1 file changed, 2 deletions(-)

drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h +0 -2

index 077efc5007dd..0e4af93be0fb 100644
@@ -13499,8 +13499,6 @@ static const struct npc_mcam_kex npc_mkex_default = {
 			[NPC_LT_LC_IP] = {
 				/* SIP+DIP: 8 bytes, KW2[63:0] */
 				KEX_LD_CFG(0x07, 0xc, 0x1, 0x0, 0x10),
-				/* TOS: 1 byte, KW1[63:56] */
-				KEX_LD_CFG(0x0, 0x1, 0x1, 0x0, 0xf),
 			},
 			/* Layer C: IPv6 */
 			[NPC_LT_LC_IP6] = {

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #153 lore raw

PATCH 153/221 octeontx2-af: Fix irq free in rvu teardown

From: Geetha sowjanya <[email protected]>

[ Upstream commit ae2619dd4fccdad9876aa5f900bd85484179c50f ]

Current devlink code try to free already freed irqs as the irq_allocate flag is not cleared after free leading to kernel crash while removing rvu driver. The patch fixes the irq free sequence and clears the irq_allocate flag on free.

Fixes 7304ac4567bc ("octeontx2-af: Add mailbox IRQ and msg handlers")

Signed-off-by Geetha sowjanya <[email protected]>

Signed-off-by Sunil Kovvuri Goutham <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/marvell/octeontx2/af/rvu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

drivers/net/ethernet/marvell/octeontx2/af/rvu.c +3 -1

index e1f918960730..644d28b0692b 100644
@@ -2151,8 +2151,10 @@ static void rvu_unregister_interrupts(struct rvu *rvu)
 		    INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
 
 	for (irq = 0; irq < rvu->num_vec; irq++) {
-		if (rvu->irq_allocated[irq])
+		if (rvu->irq_allocated[irq]) {
 			free_irq(pci_irq_vector(rvu->pdev, irq), rvu);
+			rvu->irq_allocated[irq] = false;
+		}
 	}
 
 	pci_free_irq_vectors(rvu->pdev);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #154 lore raw

PATCH 154/221 octeontx2-pf: Clear RSS enable flag on interace down

From: Geetha sowjanya <[email protected]>

[ Upstream commit f12098ce9b43e1a6fcaa524acbd90f9118a74c0a ]

RSS configuration can not be get/set when interface is in down state as they required mbox communication. RSS enable flag status is used for set/get configuration. Current code do not clear the RSS enable flag on interface down which lead to mbox error while trying to set/get RSS configuration.

Fixes 85069e95e531 ("octeontx2-pf: Receive side scaling support")

Signed-off-by Geetha sowjanya <[email protected]>

Signed-off-by Sunil Kovvuri Goutham <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 5 +++++
 1 file changed, 5 insertions(+)

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +5 -0

index 66f1a212f1f4..9fef9be015e5 100644
@@ -1616,6 +1616,7 @@ int otx2_stop(struct net_device *netdev)
 	struct otx2_nic *pf = netdev_priv(netdev);
 	struct otx2_cq_poll *cq_poll = NULL;
 	struct otx2_qset *qset = &pf->qset;
+	struct otx2_rss_info *rss;
 	int qidx, vec, wrk;
 
 	netif_carrier_off(netdev);

@@ -1628,6 +1629,10 @@ int otx2_stop(struct net_device *netdev)
 	/* First stop packet Rx/Tx */
 	otx2_rxtx_enable(pf, false);
 
+	/* Clear RSS enable flag */
+	rss = &pf->hw.rss_info;
+	rss->enable = false;
+
 	/* Cleanup Queue IRQ */
 	vec = pci_irq_vector(pf->pdev,
 			     pf->hw.nix_msixoff + NIX_LF_QINT_VEC_START);

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #155 lore raw

PATCH 155/221 octeontx2-af: fix infinite loop in unmapping NPC counter

From: Hariprasad Kelam <[email protected]>

[ Upstream commit 64451b98306bf1334a62bcd020ec92bdb4cb68db ]

unmapping npc counter works in a way by traversing all mcam entries to find which mcam rule is associated with counter. But loop cursor variable 'entry' is not incremented before checking next mcam entry which resulting in infinite loop.

This in turn hogs the kworker thread forever and no other mbox message is processed by AF driver after that. Fix this by updating entry value before checking next mcam entry.

Fixes a958dd59f9ce ("octeontx2-af: Map or unmap NPC MCAM entry and counter")

Signed-off-by Sunil Kovvuri Goutham <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +1 -1

index 511b01dd03ed..169ae491f978 100644
@@ -2035,10 +2035,10 @@ int rvu_mbox_handler_npc_mcam_free_counter(struct rvu *rvu,
 		index = find_next_bit(mcam->bmap, mcam->bmap_entries, entry);
 		if (index >= mcam->bmap_entries)
 			break;
+		entry = index + 1;
 		if (mcam->entry2cntr_map[index] != req->cntr)
 			continue;
 
-		entry = index + 1;
 		npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr,
 					      index, req->cntr);
 	}

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #156 lore raw

PATCH 156/221 net: check all name nodes in __dev_alloc_name

From: Jiri Bohac <[email protected]>

[ Upstream commit 6c015a2256801597fadcbc11d287774c9c512fa5 ]

__dev_alloc_name(), when supplied with a name containing '%d', will search for the first available device number to generate a unique device name.

Since commit ff92741270bf8b6e78aa885f166b68c7a67ab13a ("net:
introduce name_node struct to be used in hashlist") network devices may have alternate names. __dev_alloc_name() does take these alternate names into account, possibly generating a name that is already taken and failing with -ENFILE as a result.

This demonstrates the bug:

    # rmmod dummy 2>/dev/null
    # ip link property add dev lo altname dummy0
    # modprobe dummy numdummies=1
    modprobe: ERROR: could not insert 'dummy': Too many open files in system

Instead of creating a device named dummy1, modprobe fails.

Fix this by checking all the names in the d->name_node list, not just d->name.

Signed-off-by Jiri Bohac <[email protected]>

Fixes ff92741270bf ("net: introduce name_node struct to be used in hashlist")

Reviewed-by Jiri Pirko <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/core/dev.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

net/core/dev.c +12 -0

index 75ca6c6d01d6..dbc286fd2047 100644
@@ -1195,6 +1195,18 @@ static int __dev_alloc_name(struct net *net, const char *name, char *buf)
 			return -ENOMEM;
 
 		for_each_netdev(net, d) {
+			struct netdev_name_node *name_node;
+			list_for_each_entry(name_node, &d->name_node->list, list) {
+				if (!sscanf(name_node->name, name, &i))
+					continue;
+				if (i < 0 || i >= max_netdevices)
+					continue;
+
+				/*  avoid cases where sscanf is not exact inverse of printf */
+				snprintf(buf, IFNAMSIZ, name, i);
+				if (!strncmp(buf, name_node->name, IFNAMSIZ))
+					set_bit(i, inuse);
+			}
 			if (!sscanf(d->name, name, &i))
 				continue;
 			if (i < 0 || i >= max_netdevices)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #157 lore raw

PATCH 157/221 net: cdc-phonet: fix data-interface release on probe failure

From: Johan Hovold <[email protected]>

[ Upstream commit c79a707072fe3fea0e3c92edee6ca85c1e53c29f ]

Set the disconnected flag before releasing the data interface in case netdev registration fails to avoid having the disconnect callback try to deregister the never registered netdev (and trigger a WARN_ON()).

Fixes 87cf65601e17 ("USB host CDC Phonet network interface driver")

Signed-off-by Johan Hovold <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/usb/cdc-phonet.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/net/usb/cdc-phonet.c +2 -0

index dba847f28096..2520421946a6 100644
@@ -387,6 +387,8 @@ static int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *i
 
 	err = register_netdev(dev);
 	if (err) {
+		/* Set disconnected flag so that disconnect() returns early. */
+		pnd->disconnected = 1;
 		usb_driver_release_interface(&usbpn_driver, data_intf);
 		goto out;
 	}

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #158 lore raw

PATCH 158/221 igb: check timestamp validity

From: Jesse Brandeburg <[email protected]>

[ Upstream commit f0a03a026857d6c7766eb7d5835edbf5523ca15c ]

Add a couple of checks to make sure timestamping is on and that the timestamp value from DMA is valid. This avoids any functional issues that could come from a misinterpreted time stamp.

One of the functions changed doesn't need a return value added because there was no value in checking from the calling locations.

While here, fix a couple of reverse christmas tree issues next to the code being changed.

Fixes f56e7bba22fa ("igb: Pull timestamp from fragment before adding it to skb")

Fixes 9cbc948b5a20 ("igb: add XDP support")

Signed-off-by Jesse Brandeburg <[email protected]>

Tested-by Dave Switzer <[email protected]>

Signed-off-by Tony Nguyen <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/intel/igb/igb.h      |  4 +--
 drivers/net/ethernet/intel/igb/igb_main.c | 11 ++++----
 drivers/net/ethernet/intel/igb/igb_ptp.c  | 31 ++++++++++++++++++-----
 3 files changed, 32 insertions(+), 14 deletions(-)

drivers/net/ethernet/intel/igb/igb.h +2 -2

index aaa954aae574..7bda8c5edea5 100644
@@ -748,8 +748,8 @@ void igb_ptp_suspend(struct igb_adapter *adapter);
 void igb_ptp_rx_hang(struct igb_adapter *adapter);
 void igb_ptp_tx_hang(struct igb_adapter *adapter);
 void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb);
-void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
-			 struct sk_buff *skb);
+int igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
+			struct sk_buff *skb);
 int igb_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
 int igb_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr);
 void igb_set_flag_queue_pairs(struct igb_adapter *, const u32);

drivers/net/ethernet/intel/igb/igb_main.c +6 -5

index 0d343d050973..ebe80ec6e437 100644
@@ -8319,9 +8319,10 @@ static struct sk_buff *igb_construct_skb(struct igb_ring *rx_ring,
 		return NULL;
 
 	if (unlikely(igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP))) {
-		igb_ptp_rx_pktstamp(rx_ring->q_vector, xdp->data, skb);
-		xdp->data += IGB_TS_HDR_LEN;
-		size -= IGB_TS_HDR_LEN;
+		if (!igb_ptp_rx_pktstamp(rx_ring->q_vector, xdp->data, skb)) {
+			xdp->data += IGB_TS_HDR_LEN;
+			size -= IGB_TS_HDR_LEN;
+		}
 	}
 
 	/* Determine available headroom for copy */

@@ -8382,8 +8383,8 @@ static struct sk_buff *igb_build_skb(struct igb_ring *rx_ring,
 
 	/* pull timestamp out of packet data */
 	if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
-		igb_ptp_rx_pktstamp(rx_ring->q_vector, skb->data, skb);
-		__skb_pull(skb, IGB_TS_HDR_LEN);
+		if (!igb_ptp_rx_pktstamp(rx_ring->q_vector, skb->data, skb))
+			__skb_pull(skb, IGB_TS_HDR_LEN);
 	}
 
 	/* update buffer offset */

drivers/net/ethernet/intel/igb/igb_ptp.c +24 -7

index 7cc5428c3b3d..86a576201f5f 100644
@@ -856,6 +856,9 @@ static void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter)
 	dev_kfree_skb_any(skb);
 }
 
+#define IGB_RET_PTP_DISABLED 1
+#define IGB_RET_PTP_INVALID 2
+
 /**
  * igb_ptp_rx_pktstamp - retrieve Rx per packet timestamp
  * @q_vector: Pointer to interrupt specific structure

@@ -864,19 +867,29 @@ static void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter)
  *
  * This function is meant to retrieve a timestamp from the first buffer of an
  * incoming frame.  The value is stored in little endian format starting on
- * byte 8.
+ * byte 8
+ *
+ * Returns: 0 if success, nonzero if failure
  **/
-void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
-			 struct sk_buff *skb)
+int igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
+			struct sk_buff *skb)
 {
-	__le64 *regval = (__le64 *)va;
 	struct igb_adapter *adapter = q_vector->adapter;
+	__le64 *regval = (__le64 *)va;
 	int adjust = 0;
 
+	if (!(adapter->ptp_flags & IGB_PTP_ENABLED))
+		return IGB_RET_PTP_DISABLED;
+
 	/* The timestamp is recorded in little endian format.
 	 * DWORD: 0        1        2        3
 	 * Field: Reserved Reserved SYSTIML  SYSTIMH
 	 */
+
+	/* check reserved dwords are zero, be/le doesn't matter for zero */
+	if (regval[0])
+		return IGB_RET_PTP_INVALID;
+
 	igb_ptp_systim_to_hwtstamp(adapter, skb_hwtstamps(skb),
 				   le64_to_cpu(regval[1]));

@@ -896,6 +909,8 @@ void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
 	}
 	skb_hwtstamps(skb)->hwtstamp =
 		ktime_sub_ns(skb_hwtstamps(skb)->hwtstamp, adjust);
+
+	return 0;
 }
 
 /**

@@ -906,13 +921,15 @@ void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
  * This function is meant to retrieve a timestamp from the internal registers
  * of the adapter and store it in the skb.
  **/
-void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector,
-			 struct sk_buff *skb)
+void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb)
 {
 	struct igb_adapter *adapter = q_vector->adapter;
 	struct e1000_hw *hw = &adapter->hw;
-	u64 regval;
 	int adjust = 0;
+	u64 regval;
+
+	if (!(adapter->ptp_flags & IGB_PTP_ENABLED))
+		return;
 
 	/* If this bit is set, then the RX registers contain the time stamp. No
 	 * other packet will be time stamped until we read these registers, so

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #159 lore raw

PATCH 159/221 r8152: limit the RX buffer size of RTL8153A for USB 2.0

From: Hayes Wang <[email protected]>

[ Upstream commit f91a50d8b51b5c8ef1cfb08115a005bba4250507 ]

If the USB host controller is EHCI, the throughput is reduced from 300Mb/s to 60Mb/s, when the rx buffer size is modified from 16K to 32K.

According to the EHCI spec, the maximum size of the qTD is 20K. Therefore, when the driver uses more than 20K buffer, the latency time of EHCI would be increased. And, it let the RTL8153A get worse throughput.

However, the driver uses alloc_pages() for rx buffer, so I limit the rx buffer to 16K rather than 20K.

BugLink https://bugzilla.kernel.org/show_bug.cgi?id=205923

Fixes ec5791c202ac ("r8152: separate the rx buffer size")

Reported-by Robert Davies <[email protected]>

Signed-off-by Hayes Wang <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/usb/r8152.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

drivers/net/usb/r8152.c +4 -1

index d2862071b697..f5010f8ac1ec 100644
@@ -6519,7 +6519,10 @@ static int rtl_ops_init(struct r8152 *tp)
 		ops->in_nway		= rtl8153_in_nway;
 		ops->hw_phy_cfg		= r8153_hw_phy_cfg;
 		ops->autosuspend_en	= rtl8153_runtime_enable;
-		tp->rx_buf_sz		= 32 * 1024;
+		if (tp->udev->speed < USB_SPEED_SUPER)
+			tp->rx_buf_sz	= 16 * 1024;
+		else
+			tp->rx_buf_sz	= 32 * 1024;
 		tp->eee_en		= true;
 		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
 		break;

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:25 UTC #160 lore raw

PATCH 160/221 net: stmmac: dwmac-sun8i: Provide TX and RX fifo sizes

From: Corentin Labbe <[email protected]>

[ Upstream commit 014dfa26ce1c647af09bf506285ef67e0e3f0a6b ]

MTU cannot be changed on dwmac-sun8i. (ip link set eth0 mtu xxx returning EINVAL) This is due to tx_fifo_size being 0, since this value is used to compute valid
MTU range.
Like dwmac-sunxi (with commit 806fd188ce2a ("net: stmmac: dwmac-sunxi: Provide TX and RX fifo sizes")) dwmac-sun8i need to have tx and rx fifo sizes set.
I have used values from datasheets.
After this patch, setting a non-default MTU (like 1000) value works and network is still useable.

Tested-on: sun8i-h3-orangepi-pc
Tested-on: sun8i-r40-bananapi-m2-ultra
Tested-on: sun50i-a64-bananapi-m64
Tested-on: sun50i-h5-nanopi-neo-plus2
Tested-on: sun50i-h6-pine-h64

Fixes 9f93ac8d408 ("net-next: stmmac: Add dwmac-sun8i")

Reported-by Belisko Marek <[email protected]>

Signed-off-by Corentin Labbe <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 2 ++
 1 file changed, 2 insertions(+)

drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +2 -0

index a5e0eff4a387..9f5ccf1a0a54 100644
@@ -1217,6 +1217,8 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	plat_dat->init = sun8i_dwmac_init;
 	plat_dat->exit = sun8i_dwmac_exit;
 	plat_dat->setup = sun8i_dwmac_setup;
+	plat_dat->tx_fifo_size = 4096;
+	plat_dat->rx_fifo_size = 16384;
 
 	ret = sun8i_dwmac_set_syscon(&pdev->dev, plat_dat);
 	if (ret)

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:25 UTC #161 lore raw

PATCH 161/221 selinux: vsock: Set SID for socket returned by accept()

From: David Brazdil <[email protected]>

[ Upstream commit 1f935e8e72ec28dddb2dc0650b3b6626a293d94b ]

For AF_VSOCK, accept() currently returns sockets that are unlabelled. Other socket families derive the child's SID from the SID of the parent and the SID of the incoming packet. This is typically done as the connected socket is placed in the queue that accept() removes from.

Reuse the existing 'security_sk_clone' hook to copy the SID from the parent (server) socket to the child. There is no packet SID in this case.

Fixes d021c344051a ("VSOCK: Introduce VM Sockets")

Signed-off-by David Brazdil <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 net/vmw_vsock/af_vsock.c | 1 +
 1 file changed, 1 insertion(+)

net/vmw_vsock/af_vsock.c +1 -0

index 791955f5e7ec..cf86c1376b1a 100644
@@ -738,6 +738,7 @@ static struct sock *__vsock_create(struct net *net,
 		vsk->buffer_size = psk->buffer_size;
 		vsk->buffer_min_size = psk->buffer_min_size;
 		vsk->buffer_max_size = psk->buffer_max_size;
+		security_sk_clone(parent, sk);
 	} else {
 		vsk->trusted = ns_capable_noaudit(&init_user_ns, CAP_NET_ADMIN);
 		vsk->owner = get_current_cred();

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:24 UTC #162 lore raw

PATCH 162/221 selftests: forwarding: vxlan_bridge_1d: Fix vxlan ecn decapsulate value

From: Hangbin Liu <[email protected]>

[ Upstream commit 5aa3c334a449bab24519c4967f5ac2b3304c8dcf ]

The ECN bit defines ECT(1) = 1, ECT(0) = 2. So inner 0x02 + outer 0x01 should be inner ECT(0) + outer ECT(1). Based on the description of __INET_ECN_decapsulate, the final decapsulate value should be ECT(1). So fix the test expect value to 0x01.

Before the fix:
TEST: VXLAN: ECN decap: 01/02->0x02 [FAIL]
Expected to capture 10 packets, got 0.

After the fix:
TEST: VXLAN: ECN decap: 01/02->0x01 [ OK ]

Fixes a0b61f3d8ebf ("selftests: forwarding: vxlan_bridge_1d: Add an ECN decap test")

Signed-off-by Hangbin Liu <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

---
 tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh +1 -1

index ce6bea9675c0..0ccb1dda099a 100755
@@ -658,7 +658,7 @@ test_ecn_decap()
 	# In accordance with INET_ECN_decapsulate()
 	__test_ecn_decap 00 00 0x00
 	__test_ecn_decap 01 01 0x01
-	__test_ecn_decap 02 01 0x02
+	__test_ecn_decap 02 01 0x01
 	__test_ecn_decap 01 03 0x03
 	__test_ecn_decap 02 03 0x03
 	test_ecn_decap_error

Signature · 1 line

2.30.1

Greg Kroah-Hartman

author maintainer

2021-03-29 08:25 UTC #163 lore raw

PATCH 163/221 libbpf: Fix BTF dump of pointer-to-array-of-struct