Messages in this thread Patch in this message | | | From | Sergio Aguirre <> | Subject | [RFC][PATCH v2] irq_work: Drop cmpxchg result | Date | Tue, 16 Nov 2010 12:02:47 -0600 |
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This solves this compilation warning:
kernel/irq_work.c: In function 'irq_work_run': kernel/irq_work.c:148: warning: value computed is not used
Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> ---
Changelog: v2 - Keep ignoring the cmpxchg return value, as pointed out by Peter Zijlstra, and update patch subject/description
v1 - Initial version (found here: https://patchwork.kernel.org/patch/328662/)
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 f16763f..90f8819 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); -- 1.7.0.4
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