6.15-stable review patch. If anyone has any objections, please let me know.
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From: Robin Murphy robin.murphy@arm.com
commit c872d7c837382517c51a76dfdcf550332cfab231 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: 4d5a7680f2b4 ("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/614ced9149ee8324e58930862bd82cbf46228d27.174714916... Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/perf/arm-ni.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/perf/arm-ni.c +++ b/drivers/perf/arm-ni.c @@ -544,6 +544,8 @@ static int arm_ni_init_cd(struct arm_ni 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,