Messages in this thread Patch in this message | | | From | Gilad Ben-Yossef <> | Subject | [RFC PATCH v2 1/9] arm: avoid using on_each_cpu hard coded ret value | Date | Sun, 8 Jan 2012 15:32:21 +0200 |
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on_each_cpu always returns a hard coded return code of zero.
Removing all tests based on this return value saves run time cycles for compares and code bloat for branches.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reviewed-by: Michal Nazarewicz <mina86@mina86.com> CC: Will Deacon <will.deacon@arm.com> CC: Peter Zijlstra <a.p.zijlstra@chello.nl> CC: Paul Mackerras <paulus@samba.org> CC: Ingo Molnar <mingo@elte.hu> CC: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> CC: Russell King <linux@arm.linux.org.uk> CC: Grant Likely <grant.likely@secretlab.ca> CC: Rob Herring <rob.herring@calxeda.com> CC: linux-arm-kernel@lists.infradead.org CC: devicetree-discuss@lists.ozlabs.org --- arch/arm/kernel/perf_event.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 5bb91bf..6e9acb7 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -616,7 +616,7 @@ static int __init cpu_pmu_reset(void) { if (cpu_pmu && cpu_pmu->reset) - return on_each_cpu(cpu_pmu->reset, NULL, 1); + on_each_cpu(cpu_pmu->reset, NULL, 1); return 0; } arch_initcall(cpu_pmu_reset); -- 1.7.0.4
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