Messages in this thread Patch in this message | | | Date | Fri, 3 Nov 2017 12:32:02 +0000 | From | Mark Rutland <> | Subject | Re: [PATCH 1/2] perf: arm_spe: Prevent module unload while the PMU is in use |
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On Fri, Nov 03, 2017 at 11:45:17AM +0000, Suzuki K Poulose wrote: > When the PMU driver is built as a module, the perf expects the > pmu->module to be valid, so that the driver is prevented from > being unloaded while it is in use. Fix the SPE pmu driver to > fill in this field. > > Cc: Will Deacon <will.deacon@arm.com> > Cc: Mark Rutland <mark.rutland@arm.com> > Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Mark.
> --- > drivers/perf/arm_spe_pmu.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c > index 50511b13fd35..8ce262fc2561 100644 > --- a/drivers/perf/arm_spe_pmu.c > +++ b/drivers/perf/arm_spe_pmu.c > @@ -889,6 +889,7 @@ static int arm_spe_pmu_perf_init(struct arm_spe_pmu *spe_pmu) > struct device *dev = &spe_pmu->pdev->dev; > > spe_pmu->pmu = (struct pmu) { > + .module = THIS_MODULE, > .capabilities = PERF_PMU_CAP_EXCLUSIVE | PERF_PMU_CAP_ITRACE, > .attr_groups = arm_spe_pmu_attr_groups, > /* > -- > 2.13.6 >
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