From 94e8ba728640dc01375a14e337f3b892bfacbeeb Mon Sep 17 00:00:00 2001 From: Sergio Aguirre Date: Tue, 16 Nov 2010 12:02:47 -0600 Subject: 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 Cc: Huang Ying Cc: Martin Schwidefsky Cc: Kyle McMartin Signed-off-by: Peter Zijlstra LKML-Reference: <1289930567-17828-1-git-send-email-saaguirre@ti.com> Signed-off-by: Ingo Molnar --- kernel/irq_work.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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); -- cgit v1.2.3