Commit 94e8ba72 authored Nov 16, 2010 by Sergio Aguirre Committed by Ingo Molnar Nov 18, 2010

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>

parent 8882135b

kernel/irq_work.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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);

Admin message