[tip: locking/core] locking/atomic: cmpxchg: make `generic` a prefix

From: tip-bot2 for Mark Rutland
Date: Wed May 26 2021 - 07:27:52 EST

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The following commit has been merged into the locking/core branch of tip:

Commit-ID: 6988631bdfddcedc1d27f83723ea36a442f00ea1
Gitweb: https://git.kernel.org/tip/6988631bdfddcedc1d27f83723ea36a442f00ea1
Author: Mark Rutland <mark.rutland@xxxxxxx>
AuthorDate: Tue, 25 May 2021 15:02:10 +01:00
Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Wed, 26 May 2021 13:20:50 +02:00

locking/atomic: cmpxchg: make `generic` a prefix

The asm-generic implementations of cmpxchg_local() and cmpxchg64_local()
use a `_generic` suffix to distinguish themselves from arch code or
wrappers used elsewhere.

Subsequent patches will add ARCH_ATOMIC support to these
implementations, and will distinguish more functions with a `generic`
portion. To align with how ARCH_ATOMIC uses an `arch_` prefix, it would
be helpful to use a `generic_` prefix rather than a `_generic` suffix.

In preparation for this, this patch renames the existing functions to
make `generic` a prefix rather than a suffix. There should be no
functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx>
Acked-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210525140232.53872-12-mark.rutland@xxxxxxx
---
arch/arm/include/asm/cmpxchg.h | 6 +++---
arch/m68k/include/asm/cmpxchg.h | 2 +-
arch/mips/include/asm/cmpxchg.h | 2 +-
arch/parisc/include/asm/cmpxchg.h | 4 ++--
arch/powerpc/include/asm/cmpxchg.h | 2 +-
arch/sparc/include/asm/cmpxchg_32.h | 4 ++--
arch/sparc/include/asm/cmpxchg_64.h | 2 +-
arch/xtensa/include/asm/cmpxchg.h | 6 +++---
include/asm-generic/cmpxchg-local.h | 4 ++--
include/asm-generic/cmpxchg.h | 4 ++--
10 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 8b701f8..06bd8ce 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -135,13 +135,13 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
* them available.
*/
#define cmpxchg_local(ptr, o, n) ({ \
- (__typeof(*ptr))__cmpxchg_local_generic((ptr), \
+ (__typeof(*ptr))__generic_cmpxchg_local((ptr), \
(unsigned long)(o), \
(unsigned long)(n), \
sizeof(*(ptr))); \
})

-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))

#include <asm-generic/cmpxchg.h>

@@ -224,7 +224,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
#ifdef CONFIG_CPU_V6 /* min ARCH == ARMv6 */
case 1:
case 2:
- ret = __cmpxchg_local_generic(ptr, old, new, size);
+ ret = __generic_cmpxchg_local(ptr, old, new, size);
break;
#endif
default:
diff --git a/arch/m68k/include/asm/cmpxchg.h b/arch/m68k/include/asm/cmpxchg.h
index a4aa820..7629c9c 100644
--- a/arch/m68k/include/asm/cmpxchg.h
+++ b/arch/m68k/include/asm/cmpxchg.h
@@ -80,7 +80,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz

#include <asm-generic/cmpxchg-local.h>

-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))

extern unsigned long __invalid_cmpxchg_size(volatile void *,
unsigned long, unsigned long, int);
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index ed8f3f3..c7e0455 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -222,7 +222,7 @@ unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
#else

# include <asm-generic/cmpxchg-local.h>
-# define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+# define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))

# ifdef CONFIG_SMP

diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index 84ee232..c201565 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -98,7 +98,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
#endif
case 4: return __cmpxchg_u32(ptr, old, new_);
default:
- return __cmpxchg_local_generic(ptr, old, new_, size);
+ return __generic_cmpxchg_local(ptr, old, new_, size);
}
}

@@ -116,7 +116,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
cmpxchg_local((ptr), (o), (n)); \
})
#else
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
#endif

#define cmpxchg64(ptr, o, n) __cmpxchg_u64(ptr, o, n)
diff --git a/arch/powerpc/include/asm/cmpxchg.h b/arch/powerpc/include/asm/cmpxchg.h
index cf091c4..69f52fd 100644
--- a/arch/powerpc/include/asm/cmpxchg.h
+++ b/arch/powerpc/include/asm/cmpxchg.h
@@ -524,7 +524,7 @@ __cmpxchg_acquire(void *ptr, unsigned long old, unsigned long new,
})
#else
#include <asm-generic/cmpxchg-local.h>
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
#endif

#endif /* __KERNEL__ */
diff --git a/arch/sparc/include/asm/cmpxchg_32.h b/arch/sparc/include/asm/cmpxchg_32.h
index a53d744..86e3da1 100644
--- a/arch/sparc/include/asm/cmpxchg_32.h
+++ b/arch/sparc/include/asm/cmpxchg_32.h
@@ -73,8 +73,8 @@ u64 __cmpxchg_u64(u64 *ptr, u64 old, u64 new);
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+ ((__typeof__(*(ptr)))__generic_cmpxchg_local((ptr), (unsigned long)(o),\
(unsigned long)(n), sizeof(*(ptr))))
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))

#endif /* __ARCH_SPARC_CMPXCHG__ */
diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h
index 316faa0..8915b57 100644
--- a/arch/sparc/include/asm/cmpxchg_64.h
+++ b/arch/sparc/include/asm/cmpxchg_64.h
@@ -189,7 +189,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
case 4:
case 8: return __cmpxchg(ptr, old, new, size);
default:
- return __cmpxchg_local_generic(ptr, old, new, size);
+ return __generic_cmpxchg_local(ptr, old, new, size);
}

return old;
diff --git a/arch/xtensa/include/asm/cmpxchg.h b/arch/xtensa/include/asm/cmpxchg.h
index a175f8a..9c4d6e5 100644
--- a/arch/xtensa/include/asm/cmpxchg.h
+++ b/arch/xtensa/include/asm/cmpxchg.h
@@ -97,7 +97,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
case 4:
return __cmpxchg_u32(ptr, old, new);
default:
- return __cmpxchg_local_generic(ptr, old, new, size);
+ return __generic_cmpxchg_local(ptr, old, new, size);
}

return old;
@@ -108,9 +108,9 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+ ((__typeof__(*(ptr)))__generic_cmpxchg_local((ptr), (unsigned long)(o),\
(unsigned long)(n), sizeof(*(ptr))))
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))

/*
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index f17f14f..380cdc8 100644
--- a/include/asm-generic/cmpxchg-local.h
+++ b/include/asm-generic/cmpxchg-local.h
@@ -12,7 +12,7 @@ extern unsigned long wrong_size_cmpxchg(volatile void *ptr)
* Generic version of __cmpxchg_local (disables interrupts). Takes an unsigned
* long parameter, supporting various types of architectures.
*/
-static inline unsigned long __cmpxchg_local_generic(volatile void *ptr,
+static inline unsigned long __generic_cmpxchg_local(volatile void *ptr,
unsigned long old, unsigned long new, int size)
{
unsigned long flags, prev;
@@ -51,7 +51,7 @@ static inline unsigned long __cmpxchg_local_generic(volatile void *ptr,
/*
* Generic version of __cmpxchg64_local. Takes an u64 parameter.
*/
-static inline u64 __cmpxchg64_local_generic(volatile void *ptr,
+static inline u64 __generic_cmpxchg64_local(volatile void *ptr,
u64 old, u64 new)
{
u64 prev;
diff --git a/include/asm-generic/cmpxchg.h b/include/asm-generic/cmpxchg.h
index 9a24510..b9d54c7 100644
--- a/include/asm-generic/cmpxchg.h
+++ b/include/asm-generic/cmpxchg.h
@@ -94,13 +94,13 @@ unsigned long __xchg(unsigned long x, volatile void *ptr, int size)

#ifndef cmpxchg_local
#define cmpxchg_local(ptr, o, n) ({ \
- ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+ ((__typeof__(*(ptr)))__generic_cmpxchg_local((ptr), (unsigned long)(o),\
(unsigned long)(n), sizeof(*(ptr)))); \
})
#endif

#ifndef cmpxchg64_local
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
#endif

#define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n))

Next message: tip-bot2 for Mark Rutland: "[tip: locking/core] locking/atomic: microblaze: use asm-generic exclusively"
Previous message: tip-bot2 for Mark Rutland: "[tip: locking/core] locking/atomic: h8300: use asm-generic exclusively"
In reply to: Mark Rutland: "[PATCH v2 11/33] locking/atomic: cmpxchg: make `generic` a prefix"
Next in thread: Mark Rutland: "[PATCH v2 12/33] locking/atomic: cmpxchg: support ARCH_ATOMIC"
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