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staging: slicoss: fix sparse warnings

PATCH New Peng Sun 2 participants 6 messages Sep 13, 2016 Staging

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Peng Sun

author
#0 lore raw

cover staging: slicoss: fix sparse warnings

base: next-20160909, commit-id d221eb9f

Peng Sun (2):
staging: slicoss: slic.h: add several macros to fix sparse warnings
staging: slicoss: slicoss.c: fix different address space sparse
warnings

 drivers/staging/slicoss/slic.h    | 45 +++++++++++++++++++++
 drivers/staging/slicoss/slicoss.c | 82 +++++++++++++++++++++++----------------
 2 files changed, 94 insertions(+), 33 deletions(-)
Signature · 1 line
2.7.4
author
#1 lore raw

PATCH 1/2 staging: slicoss: slic.h: add several macros to fix sparse warnings

---
 drivers/staging/slicoss/slic.h | 45 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
drivers/staging/slicoss/slic.h +45 -0
index fe1d2ce..cfed4ef 100644
@@ -539,6 +539,51 @@ static inline void slic_flush_write(struct adapter *adapter)
 	ioread32(adapter->regs + SLIC_REG_HOSTID);
 }
 
+#define IOMEM_GET_FIELDADDR(base, member)				\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	(void __iomem *)_base;						\
+})
+
+#define IOMEM_GET_FIELD32(base, member)					\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	ioread32(_base);						\
+})
+
+#define IOMEM_SET_FIELD32(value, base, member)				\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	iowrite32(value, _base);					\
+})
+
+#ifdef CONFIG_64BIT
+#define IOMEM_GET_FIELD64(base, member)					\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	readq(_base);							\
+})
+#else
+#define IOMEM_GET_FIELD64(base, member)					\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	u64 val = ((u64)ioread8(_base + 7)) << 56;			\
+	val += ((u64)ioread8(_base + 6)) << 48;				\
+	val += ((u64)ioread8(_base + 5)) << 40;				\
+	val += ((u64)ioread8(_base + 4)) << 32;				\
+	val += ((u64)ioread8(_base + 3)) << 24;				\
+	val += ((u64)ioread8(_base + 2)) << 16;				\
+	val += ((u64)ioread8(_base + 1)) << 8;				\
+	val += ioread8(_base);						\
+	le64_to_cpu(val);						\
+})
+#endif
+
 #define UPDATE_STATS(largestat, newstat, oldstat)                        \
 {                                                                        \
 	if ((newstat) < (oldstat))                                       \
Signature · 1 line
2.7.4
author
#2 lore raw

PATCH 2/2 staging: slicoss: slicoss.c: fix different address space sparse warnings

In reply to Peng Sun
---
 drivers/staging/slicoss/slicoss.c | 82 +++++++++++++++++++++++----------------
 1 file changed, 49 insertions(+), 33 deletions(-)
drivers/staging/slicoss/slicoss.c +49 -33
index 21280a3..abe7592 100644
@@ -924,8 +924,8 @@ err_unlock_irq:
 static void slic_link_upr_complete(struct adapter *adapter, u32 isr)
 {
 	struct slic_shmemory *sm = &adapter->shmem;
-	struct slic_shmem_data *sm_data = sm->shmem_data;
-	u32 lst = sm_data->lnkstatus;
+	struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
+	u32 lst = IOMEM_GET_FIELD32(sm_data, lnkstatus);
 	uint linkup;
 	unsigned char linkspeed;
 	unsigned char linkduplex;
@@ -1004,8 +1004,9 @@ static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
 	switch (upr->upr_request) {
 	case SLIC_UPR_STATS: {
 		struct slic_shmemory *sm = &adapter->shmem;
-		struct slic_shmem_data *sm_data = sm->shmem_data;
-		struct slic_stats *stats = &sm_data->stats;
+		struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
+		struct slic_stats __iomem *stats =
+				IOMEM_GET_FIELDADDR(sm_data, stats);
 		struct slic_stats *old = &adapter->inicstats_prev;
 		struct slicnet_stats *stst = &adapter->slic_stats;
 
@@ -1015,48 +1016,62 @@ static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
 			break;
 		}
 
-		UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs, stats->xmit_tcp_segs,
+		UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
+				IOMEM_GET_FIELD64(stats, xmit_tcp_segs),
 				old->xmit_tcp_segs);
 
-		UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes, stats->xmit_tcp_bytes,
+		UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
+				IOMEM_GET_FIELD64(stats, xmit_tcp_bytes),
 				old->xmit_tcp_bytes);
 
-		UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs, stats->rcv_tcp_segs,
+		UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
+				IOMEM_GET_FIELD64(stats, rcv_tcp_segs),
 				old->rcv_tcp_segs);
 
-		UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes, stats->rcv_tcp_bytes,
+		UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes,
+				IOMEM_GET_FIELD64(stats, rcv_tcp_bytes),
 				old->rcv_tcp_bytes);
 
-		UPDATE_STATS_GB(stst->iface.xmt_bytes, stats->xmit_bytes,
+		UPDATE_STATS_GB(stst->iface.xmt_bytes,
+				IOMEM_GET_FIELD64(stats, xmit_bytes),
 				old->xmit_bytes);
 
-		UPDATE_STATS_GB(stst->iface.xmt_ucast, stats->xmit_unicasts,
+		UPDATE_STATS_GB(stst->iface.xmt_ucast,
+				IOMEM_GET_FIELD64(stats, xmit_unicasts),
 				old->xmit_unicasts);
 
-		UPDATE_STATS_GB(stst->iface.rcv_bytes, stats->rcv_bytes,
+		UPDATE_STATS_GB(stst->iface.rcv_bytes,
+				IOMEM_GET_FIELD64(stats, rcv_bytes),
 				old->rcv_bytes);
 
-		UPDATE_STATS_GB(stst->iface.rcv_ucast, stats->rcv_unicasts,
+		UPDATE_STATS_GB(stst->iface.rcv_ucast,
+				IOMEM_GET_FIELD64(stats, rcv_unicasts),
 				old->rcv_unicasts);
 
-		UPDATE_STATS_GB(stst->iface.xmt_errors, stats->xmit_collisions,
+		UPDATE_STATS_GB(stst->iface.xmt_errors,
+				IOMEM_GET_FIELD64(stats, xmit_collisions),
 				old->xmit_collisions);
 
 		UPDATE_STATS_GB(stst->iface.xmt_errors,
-				stats->xmit_excess_collisions,
+				IOMEM_GET_FIELD64(stats,
+						  xmit_excess_collisions),
 				old->xmit_excess_collisions);
 
-		UPDATE_STATS_GB(stst->iface.xmt_errors, stats->xmit_other_error,
+		UPDATE_STATS_GB(stst->iface.xmt_errors,
+				IOMEM_GET_FIELD64(stats, xmit_other_error),
 				old->xmit_other_error);
 
-		UPDATE_STATS_GB(stst->iface.rcv_errors, stats->rcv_other_error,
+		UPDATE_STATS_GB(stst->iface.rcv_errors,
+				IOMEM_GET_FIELD64(stats, rcv_other_error),
 				old->rcv_other_error);
 
-		UPDATE_STATS_GB(stst->iface.rcv_discards, stats->rcv_drops,
+		UPDATE_STATS_GB(stst->iface.rcv_discards,
+				IOMEM_GET_FIELD64(stats, rcv_drops),
 				old->rcv_drops);
 
-		if (stats->rcv_drops > old->rcv_drops)
-			adapter->rcv_drops += (stats->rcv_drops -
+		if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
+			adapter->rcv_drops +=
+					(IOMEM_GET_FIELD64(stats, rcv_drops) -
 					       old->rcv_drops);
 		memcpy_fromio(old, stats, sizeof(*stats));
 		break;
@@ -1682,9 +1697,10 @@ static void slic_init_cleanup(struct adapter *adapter)
 
 	if (adapter->shmem.shmem_data) {
 		struct slic_shmemory *sm = &adapter->shmem;
-		struct slic_shmem_data *sm_data = sm->shmem_data;
+		struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
 
-		pci_free_consistent(adapter->pcidev, sizeof(*sm_data), sm_data,
+		pci_free_consistent(adapter->pcidev, sizeof(*sm_data),
+				    (void __force *)sm_data,
 				    sm->isr_phaddr);
 	}
 
@@ -2071,15 +2087,15 @@ static irqreturn_t slic_interrupt(int irq, void *dev_id)
 	struct net_device *dev = dev_id;
 	struct adapter *adapter = netdev_priv(dev);
 	struct slic_shmemory *sm = &adapter->shmem;
-	struct slic_shmem_data *sm_data = sm->shmem_data;
+	struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
 	u32 isr;
 
-	if (sm_data->isr) {
+	if (IOMEM_GET_FIELD32(sm_data, isr)) {
 		slic_write32(adapter, SLIC_REG_ICR, ICR_INT_MASK);
 		slic_flush_write(adapter);
 
-		isr = sm_data->isr;
-		sm_data->isr = 0;
+		isr = IOMEM_GET_FIELD32(sm_data, isr);
+		IOMEM_SET_FIELD32(0, sm_data, isr);
 		adapter->num_isrs++;
 		switch (adapter->card->state) {
 		case CARD_UP:
@@ -2214,7 +2230,7 @@ static int slic_if_init(struct adapter *adapter, unsigned long *flags)
 	struct sliccard *card = adapter->card;
 	struct net_device *dev = adapter->netdev;
 	struct slic_shmemory *sm = &adapter->shmem;
-	struct slic_shmem_data *sm_data = sm->shmem_data;
+	struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
 	int rc;
 
 	/* adapter should be down at this point */
@@ -2298,7 +2314,7 @@ static int slic_if_init(struct adapter *adapter, unsigned long *flags)
 	/*
 	 *    clear any pending events, then enable interrupts
 	 */
-	sm_data->isr = 0;
+	IOMEM_SET_FIELD32(0, sm_data, isr);
 	slic_write32(adapter, SLIC_REG_ISR, 0);
 	slic_write32(adapter, SLIC_REG_ICR, ICR_INT_ON);
 
@@ -2587,7 +2603,7 @@ static void slic_config_pci(struct pci_dev *pcidev)
 static int slic_card_init(struct sliccard *card, struct adapter *adapter)
 {
 	struct slic_shmemory *sm = &adapter->shmem;
-	struct slic_shmem_data *sm_data = sm->shmem_data;
+	struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
 	struct slic_eeprom *peeprom;
 	struct oslic_eeprom *pOeeprom;
 	dma_addr_t phys_config;
@@ -2650,9 +2666,9 @@ static int slic_card_init(struct sliccard *card, struct adapter *adapter)
 		}
 
 		for (;;) {
-			if (sm_data->isr) {
-				if (sm_data->isr & ISR_UPC) {
-					sm_data->isr = 0;
+			if (IOMEM_GET_FIELD32(sm_data, isr)) {
+				if (IOMEM_GET_FIELD32(sm_data, isr) & ISR_UPC) {
+					IOMEM_SET_FIELD32(0, sm_data, isr);
 					slic_write64(adapter, SLIC_REG_ISP, 0,
 						     0);
 					slic_write32(adapter, SLIC_REG_ISR, 0);
@@ -2662,7 +2678,7 @@ static int slic_card_init(struct sliccard *card, struct adapter *adapter)
 					break;
 				}
 
-				sm_data->isr = 0;
+				IOMEM_SET_FIELD32(0, sm_data, isr);
 				slic_write32(adapter, SLIC_REG_ISR, 0);
 				slic_flush_write(adapter);
 			} else {
@@ -2867,7 +2883,7 @@ static int slic_init_adapter(struct net_device *netdev,
 	if (!sm_data)
 		return -ENOMEM;
 
-	sm->shmem_data = sm_data;
+	sm->shmem_data = (struct slic_shmem_data __force __iomem *)sm_data;
 	sm->isr_phaddr = phaddr;
 	sm->lnkstatus_phaddr = phaddr + offsetof(struct slic_shmem_data,
 						 lnkstatus);
Signature · 1 line
2.7.4
#3 lore raw

Re: [PATCH 2/2] staging: slicoss: slicoss.c: fix different address space sparse warnings

url: https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805 config: i386-allyesconfig (attached as .config) compiler: gcc-6 (Debian 6.1.1-9) 6.1.1…

Hi Peng,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on next-20160913]
[cannot apply to v4.8-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information]

url: https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805
config: i386-allyesconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:

        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

drivers/staging/slicoss/slicoss.c: In function 'slic_upr_request_complete':

>> drivers/staging/slicoss/slicoss.c:1019:128: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
                                                                                                                                   ^  
   drivers/staging/slicoss/slicoss.c:1023:130: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
                                                                                                                                     ^  
   drivers/staging/slicoss/slicoss.c:1027:126: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
                                                                                                                                 ^  
   drivers/staging/slicoss/slicoss.c:1031:128: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes,
                                                                                                                                   ^  
   drivers/staging/slicoss/slicoss.c:1035:123: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.xmt_bytes,
                                                                                                                              ^  
   drivers/staging/slicoss/slicoss.c:1039:126: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.xmt_ucast,
                                                                                                                                 ^  
   drivers/staging/slicoss/slicoss.c:1043:122: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.rcv_bytes,
                                                                                                                             ^  
   drivers/staging/slicoss/slicoss.c:1047:125: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.rcv_ucast,
                                                                                                                                ^  
   drivers/staging/slicoss/slicoss.c:1051:129: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.xmt_errors,
                                                                                                                                    ^  
   drivers/staging/slicoss/slicoss.c:1055:136: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.xmt_errors,
                                                                                                                                           ^  
   drivers/staging/slicoss/slicoss.c:1060:130: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.xmt_errors,
                                                                                                                                     ^  
   drivers/staging/slicoss/slicoss.c:1064:129: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.rcv_errors,
                                                                                                                                    ^  
   drivers/staging/slicoss/slicoss.c:1068:125: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      UPDATE_STATS_GB(stst->iface.rcv_discards,
                                                                                                                                ^  
   drivers/staging/slicoss/slicoss.c:1072:95: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
                                                                                                  ^  
   drivers/staging/slicoss/slicoss.c:1074:95: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
         (IOMEM_GET_FIELD64(stats, rcv_drops) -
                                                                                                  ^  

vim +1019 drivers/staging/slicoss/slicoss.c

1003 adapter->upr_busy = 0;
1004 switch (upr->upr_request) {
1005 case SLIC_UPR_STATS: {
1006 struct slic_shmemory *sm = &adapter->shmem;
1007 struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
1008 struct slic_stats __iomem *stats =
1009 IOMEM_GET_FIELDADDR(sm_data, stats);
1010 struct slic_stats *old = &adapter->inicstats_prev;
1011 struct slicnet_stats *stst = &adapter->slic_stats;
1012
1013 if (isr & ISR_UPCERR) {
1014 dev_err(&adapter->netdev->dev,
1015 "SLIC_UPR_STATS command failed isr[%x]\n", isr);
1016 break;
1017 }
1018

> 1019			UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,

1020 IOMEM_GET_FIELD64(stats, xmit_tcp_segs),
1021 old->xmit_tcp_segs);
1022
1023 UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
1024 IOMEM_GET_FIELD64(stats, xmit_tcp_bytes),
1025 old->xmit_tcp_bytes);
1026
1027 UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

#4 lore raw

Re: [PATCH 2/2] staging: slicoss: slicoss.c: fix different address space sparse warnings

In reply to Peng Sun
url: https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805 config: i386-randconfig-h1-09132219 (attached as .config) compiler: gcc-6 (Debian 6.1.1-9)…

Hi Peng,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on next-20160913]
[cannot apply to v4.8-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information]

url: https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805
config: i386-randconfig-h1-09132219 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705 reproduce:

        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1032:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_tcp_bytes),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1036:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_bytes),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1040:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_unicasts),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1044:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_bytes),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1048:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_unicasts),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1052:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_collisions),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1056:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats,
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1061:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_other_error),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1065:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_other_error),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1069:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_drops),
        ^~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:4:0,
                    from include/linux/kernel.h:6,
                    from drivers/staging/slicoss/slicoss.c:66:
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
     if (__builtin_constant_p(!!(cond)) ? !!(cond) :   \
                                 ^~~~
>> drivers/staging/slicoss/slicoss.c:1072:3: note: in expansion of macro 'if'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
      ^~
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   include/linux/compiler.h:149:42: note: in definition of macro '__trace_if'
     if (__builtin_constant_p(!!(cond)) ? !!(cond) :   \
                                             ^~~~
>> drivers/staging/slicoss/slicoss.c:1072:3: note: in expansion of macro 'if'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
      ^~
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   include/linux/compiler.h:160:16: note: in definition of macro '__trace_if'
      ______r = !!(cond);     \
                   ^~~~
>> drivers/staging/slicoss/slicoss.c:1072:3: note: in expansion of macro 'if'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
      ^~
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
   In file included from drivers/staging/slicoss/slicoss.c:97:0:
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slicoss.c:1074:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
         (IOMEM_GET_FIELD64(stats, rcv_drops) -
          ^~~~~~~~~~~~~~~~~

vim +/if +1072 drivers/staging/slicoss/slicoss.c

1056 IOMEM_GET_FIELD64(stats,
1057 xmit_excess_collisions),
1058 old->xmit_excess_collisions);
1059
1060 UPDATE_STATS_GB(stst->iface.xmt_errors,
1061 IOMEM_GET_FIELD64(stats, xmit_other_error),
1062 old->xmit_other_error);
1063
1064 UPDATE_STATS_GB(stst->iface.rcv_errors,
1065 IOMEM_GET_FIELD64(stats, rcv_other_error),
1066 old->rcv_other_error);
1067
1068 UPDATE_STATS_GB(stst->iface.rcv_discards,
1069 IOMEM_GET_FIELD64(stats, rcv_drops),
1070 old->rcv_drops);
1071

> 1072			if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)

1073 adapter->rcv_drops +=
1074 (IOMEM_GET_FIELD64(stats, rcv_drops) -
1075 old->rcv_drops);
1076 memcpy_fromio(old, stats, sizeof(*stats));
1077 break;
1078 }
1079 case SLIC_UPR_RLSR:
1080 slic_link_upr_complete(adapter, isr);

---
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#5 lore raw

Re: [PATCH 2/2] staging: slicoss: slicoss.c: fix different address space sparse warnings

In reply to Peng Sun
url: https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805 config: i386-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.1.1-9) 6.1.1…

Hi Peng,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on next-20160913]
[cannot apply to v4.8-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information]

url: https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:

        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

In file included from drivers/staging/slicoss/slicoss.c:97:0:
drivers/staging/slicoss/slicoss.c: In function 'slic_upr_request_complete':

>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
>> drivers/staging/slicoss/slicoss.c:1020:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_tcp_segs),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1024:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_tcp_bytes),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1028:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_tcp_segs),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1032:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_tcp_bytes),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1036:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_bytes),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1040:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_unicasts),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1044:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_bytes),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1048:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_unicasts),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1052:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_collisions),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1056:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats,
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1061:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_other_error),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1065:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_other_error),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1069:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_drops),
        ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
>> drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slicoss.c:1074:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
         (IOMEM_GET_FIELD64(stats, rcv_drops) -
          ^~~~~~~~~~~~~~~~~

vim +/IOMEM_GET_FIELD64 +1020 drivers/staging/slicoss/slicoss.c

1004 switch (upr->upr_request) {
1005 case SLIC_UPR_STATS: {
1006 struct slic_shmemory *sm = &adapter->shmem;
1007 struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
1008 struct slic_stats __iomem *stats =
1009 IOMEM_GET_FIELDADDR(sm_data, stats);
1010 struct slic_stats *old = &adapter->inicstats_prev;
1011 struct slicnet_stats *stst = &adapter->slic_stats;
1012
1013 if (isr & ISR_UPCERR) {
1014 dev_err(&adapter->netdev->dev,
1015 "SLIC_UPR_STATS command failed isr[%x]\n", isr);
1016 break;
1017 }
1018
1019 UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,

> 1020					IOMEM_GET_FIELD64(stats, xmit_tcp_segs),

1021 old->xmit_tcp_segs);
1022
1023 UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
1024 IOMEM_GET_FIELD64(stats, xmit_tcp_bytes),
1025 old->xmit_tcp_bytes);
1026
1027 UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
1028 IOMEM_GET_FIELD64(stats, rcv_tcp_segs),

---
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