tree bcc10e8f4f576d525b4f2a617010f49077d03e6f parent 531e5ca62bd9aabef6bd8340d8ae93bac1b5caa2 author Al Viro <[EMAIL PROTECTED]> Tue, 23 Aug 2005 22:47:07 +0100 committer Linus Torvalds <[EMAIL PROTECTED]> Wed, 24 Aug 2005 08:43:44 -0700
[PATCH] alpha xchg fix alpha xchg has to be a macro - alpha disables always_inline and if that puppy does not get inlined, we immediately blow up on undefined reference. Happens even on gcc3; with gcc4 that happens a _lot_. Signed-off-by: Al Viro <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> include/asm-alpha/system.h | 29 +++++++++++++---------------- 1 files changed, 13 insertions(+), 16 deletions(-) diff --git a/include/asm-alpha/system.h b/include/asm-alpha/system.h --- a/include/asm-alpha/system.h +++ b/include/asm-alpha/system.h @@ -443,22 +443,19 @@ __xchg_u64(volatile long *m, unsigned lo if something tries to do an invalid xchg(). */ extern void __xchg_called_with_bad_pointer(void); -static inline unsigned long -__xchg(volatile void *ptr, unsigned long x, int size) -{ - switch (size) { - case 1: - return __xchg_u8(ptr, x); - case 2: - return __xchg_u16(ptr, x); - case 4: - return __xchg_u32(ptr, x); - case 8: - return __xchg_u64(ptr, x); - } - __xchg_called_with_bad_pointer(); - return x; -} +#define __xchg(ptr, x, size) \ +({ \ + unsigned long __xchg__res; \ + volatile void *__xchg__ptr = (ptr); \ + switch (size) { \ + case 1: __xchg__res = __xchg_u8(__xchg__ptr, x); break; \ + case 2: __xchg__res = __xchg_u16(__xchg__ptr, x); break; \ + case 4: __xchg__res = __xchg_u32(__xchg__ptr, x); break; \ + case 8: __xchg__res = __xchg_u64(__xchg__ptr, x); break; \ + default: __xchg_called_with_bad_pointer(); __xchg__res = x; \ + } \ + __xchg__res; \ +}) #define xchg(ptr,x) \ ({ \ - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html