Messages in this thread Patch in this message | | | From | "Suzuki K. Poulose" <> | Subject | [PATCH 1/7] drivers: CCI: fix used_mask init in validate_group() | Date | Tue, 5 May 2015 12:49:02 +0100 |
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From: Mark Salter <msalter@redhat.com>
Currently in validate_group(), there is a static initializer for fake_pmu.used_mask which is based on CPU_BITS_NONE but the used_mask array size is based on CCI_PMU_MAX_HW_EVENTS. CCI_PMU_MAX_HW_EVENTS is not based on NR_CPUS, so CPU_BITS_NONE is not correct and will cause a build failure if NR_CPUS is set high enough to make CPU_BITS_NONE larger than used_mask. This patch changes the used_mask initialization to be runtime based on the actual size of the array.
Signed-off-by: Mark Salter <msalter@redhat.com> --- drivers/bus/arm-cci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index b854125..941b831 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -660,7 +660,7 @@ validate_group(struct perf_event *event) * Initialise the fake PMU. We only need to populate the * used_mask for the purposes of validation. */ - .used_mask = CPU_BITS_NONE, + .used_mask = { 0 }, }; if (!validate_event(event->pmu, &fake_pmu, leader)) -- 1.7.9.5
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