From ab68c0f1cfc342a08fd8562fa5d76824ee47fb13 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Fri, 3 Nov 2017 11:45:17 +0000
Subject: [PATCH 036/105] perf: arm_spe: Prevent module unload while the PMU is
in use
Git-commit: 19b4aff2025b4336392c30bb638b7d01c6263301
Patch-mainline: v4.15-rc1
References: fate#325865,fate#325861
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>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
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,
/*
--
2.11.0