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| author | Patrick Georgi <patrick@georgi-clan.de> | 2012-03-11 19:42:33 +0100 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-03-16 22:22:49 +0100 |
| commit | 1a34165e37e8ab7ced6a639441f5df2478246976 (patch) | |
| tree | 164e610d23c528f40183a3562034cecb52a4046e /src | |
| parent | fe9210f5d0ba6662ac47d3a9b962665d4d484fee (diff) | |
xchg is atomic with side-effects
clang doesn't know about the side effect, so we have to tell it
that it's okay not to care about the result.
Change-Id: Ib11890bff6779e36cf09c178d224695ea16a8ae8
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/783
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/cpu/x86/lapic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/cpu/x86/lapic.h b/src/include/cpu/x86/lapic.h index 8b44a6cb66..68608edab1 100644 --- a/src/include/cpu/x86/lapic.h +++ b/src/include/cpu/x86/lapic.h @@ -108,7 +108,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz static inline void lapic_write_atomic(unsigned long reg, unsigned long v) { - xchg((volatile unsigned long *)(LAPIC_DEFAULT_BASE+reg), v); + (void)xchg((volatile unsigned long *)(LAPIC_DEFAULT_BASE+reg), v); } |