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| author | Robin Murphy <robin.murphy@arm.com> | 2024-09-04 19:41:54 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-09-06 12:58:06 +0100 |
| commit | f04b611e66503336bbdac04eb5a76d62932ce2e3 (patch) | |
| tree | 83ed657dde617bf1931889d386e55d4dbbea3f41 /drivers/perf | |
| parent | 0dc2f4963f7ef187b80d832d7d88f735a9dc99cb (diff) | |
| download | lwn-f04b611e66503336bbdac04eb5a76d62932ce2e3.tar.gz lwn-f04b611e66503336bbdac04eb5a76d62932ce2e3.zip | |
perf/arm-cmn: Clean up unnecessary NUMA_NO_NODE check
Checking for NUMA_NO_NODE is a misleading and, on reflection, entirely
unnecessary micro-optimisation. If it ever did happen that an incoming
CPU has no NUMA affinity while the current CPU does, a questionably-
useful PMU migration isn't the biggest thing wrong with that picture...
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/00634da33c21269a00844140afc7cc3a2ac1eb4d.1725474584.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/arm-cmn.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 0266ff041e0b..62d4782da7e4 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -2023,7 +2023,7 @@ static int arm_cmn_pmu_online_cpu(unsigned int cpu, struct hlist_node *cpuhp_nod cmn = hlist_entry_safe(cpuhp_node, struct arm_cmn, cpuhp_node); node = dev_to_node(cmn->dev); - if (node != NUMA_NO_NODE && cpu_to_node(cmn->cpu) != node && cpu_to_node(cpu) == node) + if (cpu_to_node(cmn->cpu) != node && cpu_to_node(cpu) == node) arm_cmn_migrate(cmn, cpu); return 0; } |