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| author | Sergio Aguirre <saaguirre@ti.com> | 2010-11-16 12:02:47 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-11-18 13:18:47 +0100 |
| commit | 94e8ba728640dc01375a14e337f3b892bfacbeeb (patch) | |
| tree | b13b06de29ea71dfafd0505736704491e559440b /kernel | |
| parent | 8882135bcd332f294df5455747ea43ba9e6f77ad (diff) | |
| download | linux-rt-94e8ba728640dc01375a14e337f3b892bfacbeeb.tar.gz | |
irq_work: Drop cmpxchg() result
The compiler warned us about:
kernel/irq_work.c: In function 'irq_work_run':
kernel/irq_work.c:148: warning: value computed is not used
Dropping the cmpxchg() result is indeed weird, but correct -
so annotate away the warning.
Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1289930567-17828-1-git-send-email-saaguirre@ti.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq_work.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/irq_work.c b/kernel/irq_work.c index f16763ff8481..90f881904bb1 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -145,7 +145,9 @@ void irq_work_run(void) * Clear the BUSY bit and return to the free state if * no-one else claimed it meanwhile. */ - cmpxchg(&entry->next, next_flags(NULL, IRQ_WORK_BUSY), NULL); + (void)cmpxchg(&entry->next, + next_flags(NULL, IRQ_WORK_BUSY), + NULL); } } EXPORT_SYMBOL_GPL(irq_work_run); |