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SCSI fixes for 3.18-rc6

GIT PULL James Bottomley 1 participant 1 message Nov 29, 2014

Subsystems (2)
SCSI Broadcom BNX2FC 10 gigabit FCoE driver
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James Bottomley

author maintainer
#0 lore raw

This is a set of ten fixes: 8 for UFS including four static checker warnings, a potential null deref in the voltage regulator code, a race on module unload, a ref counting fix on the well known LUNs which made it impossible to remove the ufs module and fix to correct the information in pwr_info. In addition to UFS, there's a blacklist for the Intel Multi-Flex array which chokes on report supported operation codes and a fix to an oops in bnx2fc caused by shared skbs.

The patch is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes

The short changelog is:

Akinobu Mita (3):
ufs: fix NULL dereference when no regulators are defined
ufs: ensure clk gating work is finished before module unloading
ufs: fix reference counting of W-LUs

Christian Sünkenberg (1):
scsi: add Intel Multi-Flex to scsi scan blacklist

Dolev Raviv (4):
scsi: ufs: fix static checker warning in ufshcd_parse_clock_info
scsi: ufs: fix static checker warning in __ufshcd_setup_clocks
scsi: ufs: fix static checker warning in ufshcd_populate_vreg
scsi: ufs: fix static checker errors in ufshcd_system_suspend

Maurizio Lombardi (1):
bnx2fc: do not add shared skbs to the fcoe_rx_list

Yaniv Gardi (1):
ufs: fix power info after link start-up

and the diffstat:

 drivers/scsi/bnx2fc/bnx2fc_fcoe.c |   7 +++
 drivers/scsi/scsi_devinfo.c       |   1 +
 drivers/scsi/ufs/ufshcd-pltfrm.c  |  15 ++----
 drivers/scsi/ufs/ufshcd.c         | 104 +++++++++++++++++++++++---------------
 drivers/scsi/ufs/ufshcd.h         |   2 -
 5 files changed, 77 insertions(+), 52 deletions(-)

With full diff below.

James

---

drivers/scsi/bnx2fc/bnx2fc_fcoe.c +7 -0
index 79e5c94..72533c5 100644
@@ -412,6 +412,7 @@ static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 	struct fc_frame_header *fh;
 	struct fcoe_rcv_info *fr;
 	struct fcoe_percpu_s *bg;
+	struct sk_buff *tmp_skb;
 	unsigned short oxid;
 
 	interface = container_of(ptype, struct bnx2fc_interface,

@@ -424,6 +425,12 @@ static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 		goto err;
 	}
 
+	tmp_skb = skb_share_check(skb, GFP_ATOMIC);
+	if (!tmp_skb)
+		goto err;
+
+	skb = tmp_skb;
+
 	if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 		printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
 		goto err;
drivers/scsi/scsi_devinfo.c +1 -0
index 49014a1..c1d04d4 100644
@@ -202,6 +202,7 @@ static struct {
 	{"IOMEGA", "Io20S         *F", NULL, BLIST_KEY},
 	{"INSITE", "Floptical   F*8I", NULL, BLIST_KEY},
 	{"INSITE", "I325VM", NULL, BLIST_KEY},
+	{"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
 	{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
 	{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
 	{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
drivers/scsi/ufs/ufshcd-pltfrm.c +5 -10
index 8adf067..1c3467b 100644
@@ -102,7 +102,6 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 	clkfreq = devm_kzalloc(dev, sz * sizeof(*clkfreq),
 			GFP_KERNEL);
 	if (!clkfreq) {
-		dev_err(dev, "%s: no memory\n", "freq-table-hz");
 		ret = -ENOMEM;
 		goto out;
 	}

@@ -112,19 +111,19 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 	if (ret && (ret != -EINVAL)) {
 		dev_err(dev, "%s: error reading array %d\n",
 				"freq-table-hz", ret);
-		goto free_clkfreq;
+		return ret;
 	}
 
 	for (i = 0; i < sz; i += 2) {
 		ret = of_property_read_string_index(np,
 				"clock-names", i/2, (const char **)&name);
 		if (ret)
-			goto free_clkfreq;
+			goto out;
 
 		clki = devm_kzalloc(dev, sizeof(*clki), GFP_KERNEL);
 		if (!clki) {
 			ret = -ENOMEM;
-			goto free_clkfreq;
+			goto out;
 		}
 
 		clki->min_freq = clkfreq[i];

@@ -134,8 +133,6 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 				clki->min_freq, clki->max_freq, clki->name);
 		list_add_tail(&clki->list, &hba->clk_list_head);
 	}
-free_clkfreq:
-	kfree(clkfreq);
 out:
 	return ret;
 }

@@ -162,10 +159,8 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 	}
 
 	vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL);
-	if (!vreg) {
-		dev_err(dev, "No memory for %s regulator\n", name);
-		goto out;
-	}
+	if (!vreg)
+		return -ENOMEM;
 
 	vreg->name = kstrdup(name, GFP_KERNEL);
drivers/scsi/ufs/ufshcd.c +64 -40

202 lines not on this page · raw message

drivers/scsi/ufs/ufshcd.h +0 -2
index 58ecdff..4a574aa 100644
@@ -392,8 +392,6 @@ struct ufs_hba {
 	 * "UFS device" W-LU.
 	 */
 	struct scsi_device *sdev_ufs_device;
-	struct scsi_device *sdev_rpmb;
-	struct scsi_device *sdev_boot;
 
 	enum ufs_dev_pwr_mode curr_dev_pwr_mode;
 	enum uic_link_state uic_link_state;

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