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perf/arm-ni: Set initial IRQ affinity

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commit c872d7c837 upstream.

While we do request our IRQs with the right flags to stop their affinity
changing unexpectedly, we forgot to actually set it to start with. Oops.

Cc: stable@vger.kernel.org
Fixes: 4d5a7680f2 ("perf: Add driver for Arm NI-700 interconnect PMU")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Shouping Wang <allen.wang@hj-micro.com>
Link: https://lore.kernel.org/r/614ced9149ee8324e58930862bd82cbf46228d27.1747149165.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robin Murphy 2025-05-13 16:38:58 +01:00 committed by Greg Kroah-Hartman
parent 7f8576fc9d
commit 24cbf2746a
1 changed files with 2 additions and 0 deletions
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2
drivers/perf/arm-ni.c
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@ -544,6 +544,8 @@ static int arm_ni_init_cd(struct arm_ni *ni, struct arm_ni_node *node, u64 res_s
return err;
cd->cpu = cpumask_local_spread(0, dev_to_node(ni->dev));
irq_set_affinity(cd->irq, cpumask_of(cd->cpu));
cd->pmu = (struct pmu) {
.module = THIS_MODULE,
.parent = ni->dev,