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MIPS: include: Mark __xchg as __always_inline 

Commit ac7c3e4ff4 ("compiler: enable CONFIG_OPTIMIZE_INLINING
forcibly") allows compiler to uninline functions marked as 'inline'.
In cace of __xchg this would cause to reference function
__xchg_called_with_bad_pointer, which is an error case
for catching bugs and will not happen for correct code, if
__xchg is inlined.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Thomas Bogendoerfer 2019-10-09 12:06:00 +02:00 committed by Paul Burton
parent 88356d0990
commit 46f1619500
No known key found for this signature in database
GPG Key ID: 3EA79FACB57500DD
1 changed files with 2 additions and 2 deletions
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4
arch/mips/include/asm/cmpxchg.h
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@ -77,8 +77,8 @@ extern unsigned long __xchg_called_with_bad_pointer(void)
extern unsigned long __xchg_small(volatile void *ptr, unsigned long val,
unsigned int size);
static inline unsigned long __xchg(volatile void *ptr, unsigned long x,
int size)
static __always_inline
unsigned long __xchg(volatile void *ptr, unsigned long x, int size)
{
switch (size) {
case 1: