diff options
| author | Qi Liu <liuqi115@huawei.com> | 2021-02-09 17:42:22 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-02-10 18:50:42 +0000 |
| commit | 8ee37e0f97ec66b953d202257293670efaab1daa (patch) | |
| tree | 7097f3cf73a2b917254daa899e19a325d2551245 | |
| parent | 750d43b4a79e5f3767ee1db933b42abdf967ce1e (diff) | |
| download | linux-8ee37e0f97ec66b953d202257293670efaab1daa.tar.bz2 | |
drivers/perf: Replace spin_lock_irqsave to spin_lock
There is no need to do spin_lock_irqsave in context of hard IRQ, so
replace them with spin_lock.
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Link: https://lore.kernel.org/r/1612863742-1551-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | drivers/perf/arm-cci.c | 5 | ||||
| -rw-r--r-- | drivers/perf/xgene_pmu.c | 5 |
2 files changed, 4 insertions, 6 deletions
diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c index a75cf77c4de4..f81e2ec90005 100644 --- a/drivers/perf/arm-cci.c +++ b/drivers/perf/arm-cci.c @@ -1026,12 +1026,11 @@ static void pmu_event_set_period(struct perf_event *event) static irqreturn_t pmu_handle_irq(int irq_num, void *dev) { - unsigned long flags; struct cci_pmu *cci_pmu = dev; struct cci_pmu_hw_events *events = &cci_pmu->hw_events; int idx, handled = IRQ_NONE; - raw_spin_lock_irqsave(&events->pmu_lock, flags); + raw_spin_lock(&events->pmu_lock); /* Disable the PMU while we walk through the counters */ __cci_pmu_disable(cci_pmu); @@ -1061,7 +1060,7 @@ static irqreturn_t pmu_handle_irq(int irq_num, void *dev) /* Enable the PMU and sync possibly overflowed counters */ __cci_pmu_enable_sync(cci_pmu); - raw_spin_unlock_irqrestore(&events->pmu_lock, flags); + raw_spin_unlock(&events->pmu_lock); return IRQ_RETVAL(handled); } diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c index 633cf07ba672..44faa51ba799 100644 --- a/drivers/perf/xgene_pmu.c +++ b/drivers/perf/xgene_pmu.c @@ -1234,10 +1234,9 @@ static irqreturn_t xgene_pmu_isr(int irq, void *dev_id) u32 intr_mcu, intr_mcb, intr_l3c, intr_iob; struct xgene_pmu_dev_ctx *ctx; struct xgene_pmu *xgene_pmu = dev_id; - unsigned long flags; u32 val; - raw_spin_lock_irqsave(&xgene_pmu->lock, flags); + raw_spin_lock(&xgene_pmu->lock); /* Get Interrupt PMU source */ val = readl(xgene_pmu->pcppmu_csr + PCPPMU_INTSTATUS_REG); @@ -1273,7 +1272,7 @@ static irqreturn_t xgene_pmu_isr(int irq, void *dev_id) } } - raw_spin_unlock_irqrestore(&xgene_pmu->lock, flags); + raw_spin_unlock(&xgene_pmu->lock); return IRQ_HANDLED; } |