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Date: Thu, 16 May 2024 14:11:44 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: Nicolas Pitre <nico@...xnic.net>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
Arnd Bergmann <arnd@...db.de>,
Andrew Lunn <andrew@...n.ch>
Cc: netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
Thorsten Blum <thorsten.blum@...lux.com>,
kernel test robot <lkp@...el.com>
Subject: [PATCH] net: smc91x: Fix pointer types
Use void __iomem pointers as parameters for mcf_insw() and mcf_outsw()
to align with the parameter types of readw() and writew().
Consistently call SMC_outsw(), SMC_outsb(), SMC_insw(), and SMC_insb()
with void __iomem pointers to address the following warnings reported by
kernel test robot:
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: warning: incorrect type in argument 1 (different address spaces)
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: expected void *a
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: got void [noderef] __iomem *
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: warning: incorrect type in argument 1 (different address spaces)
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: expected void *a
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: got void [noderef] __iomem *
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: warning: incorrect type in argument 1 (different address spaces)
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: expected void *a
drivers/net/ethernet/smsc/smc91x.c:590:9: sparse: got void [noderef] __iomem *
drivers/net/ethernet/smsc/smc91x.c:483:17: sparse: warning: incorrect type in argument 1 (different address spaces)
drivers/net/ethernet/smsc/smc91x.c:483:17: sparse: expected void *a
drivers/net/ethernet/smsc/smc91x.c:483:17: sparse: got void [noderef] __iomem *
Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405160853.3qyaSj8w-lkp@intel.com/
---
drivers/net/ethernet/smsc/smc91x.h | 34 +++++++++++++++---------------
1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index 45ef5ac0788a..204fbb5c975c 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -142,14 +142,14 @@ static inline void _SMC_outw_align4(u16 val, void __iomem *ioaddr, int reg,
#define SMC_CAN_USE_32BIT 0
#define SMC_NOWAIT 1
-static inline void mcf_insw(void *a, unsigned char *p, int l)
+static inline void mcf_insw(void __iomem *a, unsigned char *p, int l)
{
u16 *wp = (u16 *) p;
while (l-- > 0)
*wp++ = readw(a);
}
-static inline void mcf_outsw(void *a, unsigned char *p, int l)
+static inline void mcf_outsw(void __iomem *a, unsigned char *p, int l)
{
u16 *wp = (u16 *) p;
while (l-- > 0)
@@ -1026,15 +1026,15 @@ static const char * chip_ids[ 16 ] = {
} \
} while (0)
-#define SMC_PUSH_DATA(lp, p, l) \
+#define SMC_PUSH_DATA(lp, p, l) \
do { \
- if (SMC_32BIT(lp)) { \
+ void __iomem *__ioaddr = ioaddr; \
+ if (SMC_32BIT(lp)) { \
void *__ptr = (p); \
int __len = (l); \
- void __iomem *__ioaddr = ioaddr; \
if (__len >= 2 && (unsigned long)__ptr & 2) { \
__len -= 2; \
- SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
+ SMC_outsw(__ioaddr, DATA_REG(lp), __ptr, 1); \
__ptr += 2; \
} \
if (SMC_CAN_USE_DATACS && lp->datacs) \
@@ -1042,20 +1042,20 @@ static const char * chip_ids[ 16 ] = {
SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
if (__len & 2) { \
__ptr += (__len & ~3); \
- SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
+ SMC_outsw(__ioaddr, DATA_REG(lp), __ptr, 1); \
} \
} else if (SMC_16BIT(lp)) \
- SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
- else if (SMC_8BIT(lp)) \
- SMC_outsb(ioaddr, DATA_REG(lp), p, l); \
+ SMC_outsw(__ioaddr, DATA_REG(lp), p, (l) >> 1); \
+ else if (SMC_8BIT(lp)) \
+ SMC_outsb(__ioaddr, DATA_REG(lp), p, l); \
} while (0)
-#define SMC_PULL_DATA(lp, p, l) \
+#define SMC_PULL_DATA(lp, p, l) \
do { \
- if (SMC_32BIT(lp)) { \
+ void __iomem *__ioaddr = ioaddr; \
+ if (SMC_32BIT(lp)) { \
void *__ptr = (p); \
int __len = (l); \
- void __iomem *__ioaddr = ioaddr; \
if ((unsigned long)__ptr & 2) { \
/* \
* We want 32bit alignment here. \
@@ -1072,7 +1072,7 @@ static const char * chip_ids[ 16 ] = {
*/ \
__ptr -= 2; \
__len += 2; \
- SMC_SET_PTR(lp, \
+ SMC_SET_PTR(lp, \
2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
} \
if (SMC_CAN_USE_DATACS && lp->datacs) \
@@ -1080,9 +1080,9 @@ static const char * chip_ids[ 16 ] = {
__len += 2; \
SMC_insl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
} else if (SMC_16BIT(lp)) \
- SMC_insw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
- else if (SMC_8BIT(lp)) \
- SMC_insb(ioaddr, DATA_REG(lp), p, l); \
+ SMC_insw(__ioaddr, DATA_REG(lp), p, (l) >> 1); \
+ else if (SMC_8BIT(lp)) \
+ SMC_insb(__ioaddr, DATA_REG(lp), p, l); \
} while (0)
#endif /* _SMC91X_H_ */
--
2.45.0
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