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Commit 94e8ba72 authored by Sergio Aguirre's avatar Sergio Aguirre Committed by Ingo Molnar
Browse files

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: default avatarSergio 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: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1289930567-17828-1-git-send-email-saaguirre@ti.com>
Signed-off-by: default avatarIngo 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);