__xchg will be used for non-atomic xchg macro.
Signed-off-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2: squashed all arch patches into one
v3: fixed alpha/xchg_local, thx to lkp@xxxxxxxxx
---
arch/alpha/include/asm/cmpxchg.h | 8 ++++----
arch/arc/include/asm/cmpxchg.h | 4 ++--
arch/arm/include/asm/cmpxchg.h | 4 ++--
arch/arm64/include/asm/cmpxchg.h | 4 ++--
arch/hexagon/include/asm/cmpxchg.h | 6 +++---
arch/ia64/include/asm/cmpxchg.h | 2 +-
arch/ia64/include/uapi/asm/cmpxchg.h | 4 ++--
arch/loongarch/include/asm/cmpxchg.h | 4 ++--
arch/m68k/include/asm/cmpxchg.h | 6 +++---
arch/mips/include/asm/cmpxchg.h | 4 ++--
arch/openrisc/include/asm/cmpxchg.h | 4 ++--
arch/parisc/include/asm/cmpxchg.h | 4 ++--
arch/powerpc/include/asm/cmpxchg.h | 4 ++--
arch/riscv/include/asm/atomic.h | 2 +-
arch/riscv/include/asm/cmpxchg.h | 4 ++--
arch/s390/include/asm/cmpxchg.h | 4 ++--
arch/sh/include/asm/cmpxchg.h | 4 ++--
arch/sparc/include/asm/cmpxchg_32.h | 4 ++--
arch/sparc/include/asm/cmpxchg_64.h | 4 ++--
arch/xtensa/include/asm/cmpxchg.h | 4 ++--
20 files changed, 42 insertions(+), 42 deletions(-)
diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h
index 6e0a850aa9d38c..e0cb5b5c1c54b9 100644
--- a/arch/alpha/include/asm/cmpxchg.h
+++ b/arch/alpha/include/asm/cmpxchg.h
@@ -6,14 +6,14 @@
* Atomic exchange routines.
*/
-#define ____xchg(type, args...) __xchg ## type ## _local(args)
+#define ____xchg(type, args...) __arch_xchg ## type ## _local(args)
#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
#include <asm/xchg.h>
#define xchg_local(ptr, x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
- (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \
+ (__typeof__(*(ptr))) __arch_xchg_local((ptr), (unsigned long)_x_,\
sizeof(*(ptr))); \
})
@@ -34,7 +34,7 @@
#undef ____xchg
#undef ____cmpxchg
-#define ____xchg(type, args...) __xchg ##type(args)
+#define ____xchg(type, args...) __arch_xchg ##type(args)
#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
#include <asm/xchg.h>
@@ -48,7 +48,7 @@
__typeof__(*(ptr)) _x_ = (x); \
smp_mb(); \
__ret = (__typeof__(*(ptr))) \
- __xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \
+ __arch_xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \
smp_mb(); \
__ret; \
})
diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h
index c5b544a5fe8106..e138fde067dea5 100644
--- a/arch/arc/include/asm/cmpxchg.h
+++ b/arch/arc/include/asm/cmpxchg.h
@@ -85,7 +85,7 @@
*/
#ifdef CONFIG_ARC_HAS_LLSC
-#define __xchg(ptr, val) \
+#define __arch_xchg(ptr, val) \
({ \
__asm__ __volatile__( \
" ex %0, [%1] \n" /* set new value */ \
@@ -102,7 +102,7 @@
\
switch(sizeof(*(_p_))) { \
case 4: \
- _val_ = __xchg(_p_, _val_); \
+ _val_ = __arch_xchg(_p_, _val_); \
break; \
default: \
BUILD_BUG(); \
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 4dfe538dfc689b..6953fc05a97886 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -25,7 +25,7 @@
#define swp_is_buggy
#endif
-static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
+static inline unsigned long __arch_xchg(unsigned long x, volatile void *ptr, int size)
{
extern void __bad_xchg(volatile void *, int);
unsigned long ret;
@@ -115,7 +115,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
}
#define arch_xchg_relaxed(ptr, x) ({ \
- (__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), \
+ (__typeof__(*(ptr)))__arch_xchg((unsigned long)(x), (ptr), \
sizeof(*(ptr))); \
})
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h
index 497acf134d9923..3a36ba58e8c2ef 100644
--- a/arch/arm64/include/asm/cmpxchg.h
+++ b/arch/arm64/include/asm/cmpxchg.h
@@ -62,7 +62,7 @@ __XCHG_CASE( , , mb_, 64, dmb ish, nop, , a, l, "memory")
#undef __XCHG_CASE
#define __XCHG_GEN(sfx) \
-static __always_inline unsigned long __xchg##sfx(unsigned long x, \
+static __always_inline unsigned long __arch_xchg##sfx(unsigned long x, \
volatile void *ptr, \
int size) \
{ \
@@ -93,7 +93,7 @@ __XCHG_GEN(_mb)
({ \
__typeof__(*(ptr)) __ret; \
__ret = (__typeof__(*(ptr))) \
- __xchg##sfx((unsigned long)(x), (ptr), sizeof(*(ptr))); \
+ __arch_xchg##sfx((unsigned long)(x), (ptr), sizeof(*(ptr))); \
__ret; \
})
diff --git a/arch/hexagon/include/asm/cmpxchg.h b/arch/hexagon/include/asm/cmpxchg.h
index cdb705e1496af8..92dc5e5f836f3b 100644
--- a/arch/hexagon/include/asm/cmpxchg.h
+++ b/arch/hexagon/include/asm/cmpxchg.h
@@ -9,7 +9,7 @@
#define _ASM_CMPXCHG_H
/*
- * __xchg - atomically exchange a register and a memory location
+ * __arch_xchg - atomically exchange a register and a memory location
* @x: value to swap
* @ptr: pointer to memory
* @size: size of the value
@@ -19,7 +19,7 @@
* Note: there was an errata for V2 about .new's and memw_locked.
*
*/
-static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
+static inline unsigned long __arch_xchg(unsigned long x, volatile void *ptr,
int size)
{
unsigned long retval;
@@ -42,7 +42,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
* Atomically swap the contents of a register with memory. Should be atomic
* between multiple CPU's and within interrupts on the same CPU.
*/
-#define arch_xchg(ptr, v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \
+#define arch_xchg(ptr, v) ((__typeof__(*(ptr)))__arch_xchg((unsigned long)(v), (ptr), \
sizeof(*(ptr))))
/*
diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h
index 94ef844298431a..8b2e644ef6a14e 100644
--- a/arch/ia64/include/asm/cmpxchg.h
+++ b/arch/ia64/include/asm/cmpxchg.h
@@ -5,7 +5,7 @@
#include <uapi/asm/cmpxchg.h>
#define arch_xchg(ptr, x) \
-({(__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr)));})
+({(__typeof__(*(ptr))) __arch_xchg((unsigned long) (x), (ptr), sizeof(*(ptr)));})
#define arch_cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
#define arch_cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
diff --git a/arch/ia64/include/uapi/asm/cmpxchg.h b/arch/ia64/include/uapi/asm/cmpxchg.h
index ca2e0268534384..3fec9b037051bb 100644
--- a/arch/ia64/include/uapi/asm/cmpxchg.h
+++ b/arch/ia64/include/uapi/asm/cmpxchg.h
@@ -27,7 +27,7 @@
*/
extern void ia64_xchg_called_with_bad_pointer(void);
-#define __xchg(x, ptr, size) \
+#define __arch_xchg(x, ptr, size) \
({ \
unsigned long __xchg_result; \
\
@@ -55,7 +55,7 @@ extern void ia64_xchg_called_with_bad_pointer(void);
#ifndef __KERNEL__
#define xchg(ptr, x) \
-({(__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr)));})
+({(__typeof__(*(ptr))) __arch_xchg((unsigned long) (x), (ptr), sizeof(*(ptr)));})
#endif
/*
diff --git a/arch/loongarch/include/asm/cmpxchg.h b/arch/loongarch/include/asm/cmpxchg.h
index ecfa6cf79806e6..979fde61bba8a4 100644
--- a/arch/loongarch/include/asm/cmpxchg.h
+++ b/arch/loongarch/include/asm/cmpxchg.h
@@ -62,7 +62,7 @@ static inline unsigned int __xchg_small(volatile void *ptr, unsigned int val,
}
static __always_inline unsigned long
-__xchg(volatile void *ptr, unsigned long x, int size)
+__arch_xchg(volatile void *ptr, unsigned long x, int size)
{
switch (size) {
case 1:
@@ -87,7 +87,7 @@ __xchg(volatile void *ptr, unsigned long x, int size)
__typeof__(*(ptr)) __res; \
\
__res = (__typeof__(*(ptr))) \
- __xchg((ptr), (unsigned long)(x), sizeof(*(ptr))); \
+ __arch_xchg((ptr), (unsigned long)(x), sizeof(*(ptr))); \
\
__res; \
})
diff --git a/arch/m68k/include/asm/cmpxchg.h b/arch/m68k/include/asm/cmpxchg.h
index 6cf464cdab067e..d7f3de9c5d6f79 100644
--- a/arch/m68k/include/asm/cmpxchg.h
+++ b/arch/m68k/include/asm/cmpxchg.h
@@ -9,7 +9,7 @@
extern unsigned long __invalid_xchg_size(unsigned long, volatile void *, int);
#ifndef CONFIG_RMW_INSNS
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+static inline unsigned long __arch_xchg(unsigned long x, volatile void * ptr, int size)
{
unsigned long flags, tmp;
@@ -40,7 +40,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
return x;
}
#else
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+static inline unsigned long __arch_xchg(unsigned long x, volatile void * ptr, int size)
{
switch (size) {
case 1:
@@ -75,7 +75,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
}
#endif
-#define arch_xchg(ptr,x) ({(__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)));})
+#define arch_xchg(ptr,x) ({(__typeof__(*(ptr)))__arch_xchg((unsigned long)(x),(ptr),sizeof(*(ptr)));})
#include <asm-generic/cmpxchg-local.h>
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index 7ec9493b28614f..feed343ad483a9 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -68,7 +68,7 @@ extern unsigned long __xchg_small(volatile void *ptr, unsigned long val,
unsigned int size);
static __always_inline
-unsigned long __xchg(volatile void *ptr, unsigned long x, int size)
+unsigned long __arch_xchg(volatile void *ptr, unsigned long x, int size)
{
switch (size) {
case 1:
@@ -102,7 +102,7 @@ unsigned long __xchg(volatile void *ptr, unsigned long x, int size)
smp_mb__before_llsc(); \
\
__res = (__typeof__(*(ptr))) \
- __xchg((ptr), (unsigned long)(x), sizeof(*(ptr))); \
+ __arch_xchg((ptr), (unsigned long)(x), sizeof(*(ptr))); \
\
smp_llsc_mb(); \
\
diff --git a/arch/openrisc/include/asm/cmpxchg.h b/arch/openrisc/include/asm/cmpxchg.h
index 79fd16162ccb6d..5725e22e10683b 100644
--- a/arch/openrisc/include/asm/cmpxchg.h
+++ b/arch/openrisc/include/asm/cmpxchg.h
@@ -147,7 +147,7 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
extern unsigned long __xchg_called_with_bad_pointer(void)
__compiletime_error("Bad argument size for xchg");
-static inline unsigned long __xchg(volatile void *ptr, unsigned long with,
+static inline unsigned long __arch_xchg(volatile void *ptr, unsigned long with,
int size)
{
switch (size) {
@@ -163,7 +163,7 @@ static inline unsigned long __xchg(volatile void *ptr, unsigned long with,
#define arch_xchg(ptr, with) \
({ \
- (__typeof__(*(ptr))) __xchg((ptr), \
+ (__typeof__(*(ptr))) __arch_xchg((ptr), \
(unsigned long)(with), \
sizeof(*(ptr))); \
})
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index 5f274be105671e..c1d776bb16b4ed 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -22,7 +22,7 @@ extern unsigned long __xchg64(unsigned long, volatile unsigned long *);
/* optimizer better get rid of switch since size is a constant */
static inline unsigned long
-__xchg(unsigned long x, volatile void *ptr, int size)
+__arch_xchg(unsigned long x, volatile void *ptr, int size)
{
switch (size) {
#ifdef CONFIG_64BIT
@@ -49,7 +49,7 @@ __xchg(unsigned long x, volatile void *ptr, int size)
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) _x_ = (x); \
__ret = (__typeof__(*(ptr))) \
- __xchg((unsigned long)_x_, (ptr), sizeof(*(ptr))); \
+ __arch_xchg((unsigned long)_x_, (ptr), sizeof(*(ptr))); \
__ret; \
})
diff --git a/arch/powerpc/include/asm/cmpxchg.h b/arch/powerpc/include/asm/cmpxchg.h
index d0ea0571e79ab5..dbb50c06f0bf4d 100644
--- a/arch/powerpc/include/asm/cmpxchg.h
+++ b/arch/powerpc/include/asm/cmpxchg.h
@@ -229,7 +229,7 @@ __xchg_local(void *ptr, unsigned long x, unsigned int size)
return __xchg_u64_local(ptr, x);
#endif
}
- BUILD_BUG_ON_MSG(1, "Unsupported size for __xchg");
+ BUILD_BUG_ON_MSG(1, "Unsupported size for __xchg_local");
return x;
}
@@ -248,7 +248,7 @@ __xchg_relaxed(void *ptr, unsigned long x, unsigned int size)
return __xchg_u64_relaxed(ptr, x);
#endif
}
- BUILD_BUG_ON_MSG(1, "Unsupported size for __xchg_local");
+ BUILD_BUG_ON_MSG(1, "Unsupported size for __xchg_relaxed");
return x;
}
#define arch_xchg_local(ptr,x) \
diff --git a/arch/riscv/include/asm/atomic.h b/arch/riscv/include/asm/atomic.h
index 0dfe9d857a762b..bba472928b5393 100644
--- a/arch/riscv/include/asm/atomic.h
+++ b/arch/riscv/include/asm/atomic.h
@@ -261,7 +261,7 @@ c_t arch_atomic##prefix##_xchg_release(atomic##prefix##_t *v, c_t n) \
static __always_inline \
c_t arch_atomic##prefix##_xchg(atomic##prefix##_t *v, c_t n) \
{ \
- return __xchg(&(v->counter), n, size); \
+ return __arch_xchg(&(v->counter), n, size); \
} \
static __always_inline \
c_t arch_atomic##prefix##_cmpxchg_relaxed(atomic##prefix##_t *v, \
diff --git a/arch/riscv/include/asm/cmpxchg.h b/arch/riscv/include/asm/cmpxchg.h
index 12debce235e52d..2f4726d3cfcc25 100644
--- a/arch/riscv/include/asm/cmpxchg.h
+++ b/arch/riscv/include/asm/cmpxchg.h
@@ -114,7 +114,7 @@
_x_, sizeof(*(ptr))); \
})
-#define __xchg(ptr, new, size) \
+#define __arch_xchg(ptr, new, size) \
({ \
__typeof__(ptr) __ptr = (ptr); \
__typeof__(new) __new = (new); \
@@ -143,7 +143,7 @@
#define arch_xchg(ptr, x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
- (__typeof__(*(ptr))) __xchg((ptr), _x_, sizeof(*(ptr))); \
+ (__typeof__(*(ptr))) __arch_xchg((ptr), _x_, sizeof(*(ptr))); \
})
#define xchg32(ptr, x) \
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 84c3f0d576c5b1..efc16f4aac8643 100644
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -14,7 +14,7 @@
void __xchg_called_with_bad_pointer(void);
-static __always_inline unsigned long __xchg(unsigned long x,
+static __always_inline unsigned long __arch_xchg(unsigned long x,
unsigned long address, int size)
{
unsigned long old;
@@ -77,7 +77,7 @@ static __always_inline unsigned long __xchg(unsigned long x,
__typeof__(*(ptr)) __ret; \
\
__ret = (__typeof__(*(ptr))) \
- __xchg((unsigned long)(x), (unsigned long)(ptr), \
+ __arch_xchg((unsigned long)(x), (unsigned long)(ptr), \
sizeof(*(ptr))); \
__ret; \
})
diff --git a/arch/sh/include/asm/cmpxchg.h b/arch/sh/include/asm/cmpxchg.h
index 0ed9b3f4a57796..288f6f38d98fb4 100644
--- a/arch/sh/include/asm/cmpxchg.h
+++ b/arch/sh/include/asm/cmpxchg.h
@@ -22,7 +22,7 @@
extern void __xchg_called_with_bad_pointer(void);
-#define __xchg(ptr, x, size) \
+#define __arch_xchg(ptr, x, size) \
({ \
unsigned long __xchg__res; \
volatile void *__xchg_ptr = (ptr); \
@@ -46,7 +46,7 @@ extern void __xchg_called_with_bad_pointer(void);
})
#define arch_xchg(ptr,x) \
- ((__typeof__(*(ptr)))__xchg((ptr),(unsigned long)(x), sizeof(*(ptr))))
+ ((__typeof__(*(ptr)))__arch_xchg((ptr),(unsigned long)(x), sizeof(*(ptr))))
/* This function doesn't exist, so you'll get a linker error
* if something tries to do an invalid cmpxchg(). */
diff --git a/arch/sparc/include/asm/cmpxchg_32.h b/arch/sparc/include/asm/cmpxchg_32.h
index 27a57a3a7597eb..7a1339533d1d7e 100644
--- a/arch/sparc/include/asm/cmpxchg_32.h
+++ b/arch/sparc/include/asm/cmpxchg_32.h
@@ -15,7 +15,7 @@
unsigned long __xchg_u32(volatile u32 *m, u32 new);
void __xchg_called_with_bad_pointer(void);
-static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, int size)
+static inline unsigned long __arch_xchg(unsigned long x, __volatile__ void * ptr, int size)
{
switch (size) {
case 4:
@@ -25,7 +25,7 @@ static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, int
return x;
}
-#define arch_xchg(ptr,x) ({(__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)));})
+#define arch_xchg(ptr,x) ({(__typeof__(*(ptr)))__arch_xchg((unsigned long)(x),(ptr),sizeof(*(ptr)));})
/* Emulate cmpxchg() the same way we emulate atomics,
* by hashing the object address and indexing into an array
diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h
index 12d00a42c0a3ed..4c22fd9110c945 100644
--- a/arch/sparc/include/asm/cmpxchg_64.h
+++ b/arch/sparc/include/asm/cmpxchg_64.h
@@ -55,7 +55,7 @@ static inline unsigned long xchg64(__volatile__ unsigned long *m, unsigned long
#define arch_xchg(ptr,x) \
({ __typeof__(*(ptr)) __ret; \
__ret = (__typeof__(*(ptr))) \
- __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))); \
+ __arch_xchg((unsigned long)(x), (ptr), sizeof(*(ptr))); \
__ret; \
})
@@ -87,7 +87,7 @@ xchg16(__volatile__ unsigned short *m, unsigned short val)
return (load32 & mask) >> bit_shift;
}
-static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr,
+static inline unsigned long __arch_xchg(unsigned long x, __volatile__ void * ptr,
int size)
{
switch (size) {
diff --git a/arch/xtensa/include/asm/cmpxchg.h b/arch/xtensa/include/asm/cmpxchg.h
index eb87810357ad88..675a11ea8de76b 100644
--- a/arch/xtensa/include/asm/cmpxchg.h
+++ b/arch/xtensa/include/asm/cmpxchg.h
@@ -170,7 +170,7 @@ static inline unsigned long xchg_u32(volatile int * m, unsigned long val)
}
#define arch_xchg(ptr,x) \
- ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+ ((__typeof__(*(ptr)))__arch_xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
static inline u32 xchg_small(volatile void *ptr, u32 x, int size)
{
@@ -203,7 +203,7 @@ static inline u32 xchg_small(volatile void *ptr, u32 x, int size)
extern void __xchg_called_with_bad_pointer(void);
static __inline__ unsigned long
-__xchg(unsigned long x, volatile void * ptr, int size)
+__arch_xchg(unsigned long x, volatile void * ptr, int size)
{
switch (size) {
case 1:
--
2.34.1
