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authorguanjing <guanjing@cmss.chinamobile.com>2024-11-17 05:51:29 +0300
committerTejun Heo <tj@kernel.org>2024-12-04 22:47:39 +0300
commitf24d192985cbd6782850fdbb3839039da2f0ee76 (patch)
tree8f4db010911c26334395cf95d4de162852a74cfb
parentef7009decc30eb2515a64253791d61b72229c119 (diff)
downloadlinux-f24d192985cbd6782850fdbb3839039da2f0ee76.tar.xz
sched_ext: fix application of sizeof to pointer
sizeof when applied to a pointer typed expression gives the size of the pointer. The proper fix in this particular case is to code sizeof(*cpuset) instead of sizeof(cpuset). This issue was detected with the help of Coccinelle. Fixes: 22a920209ab6 ("sched_ext: Implement tickless support") Signed-off-by: guanjing <guanjing@cmss.chinamobile.com> Acked-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
-rw-r--r--tools/sched_ext/scx_central.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/sched_ext/scx_central.c b/tools/sched_ext/scx_central.c
index 21deea320bd7..e938156ed0a0 100644
--- a/tools/sched_ext/scx_central.c
+++ b/tools/sched_ext/scx_central.c
@@ -97,7 +97,7 @@ restart:
SCX_BUG_ON(!cpuset, "Failed to allocate cpuset");
CPU_ZERO(cpuset);
CPU_SET(skel->rodata->central_cpu, cpuset);
- SCX_BUG_ON(sched_setaffinity(0, sizeof(cpuset), cpuset),
+ SCX_BUG_ON(sched_setaffinity(0, sizeof(*cpuset), cpuset),
"Failed to affinitize to central CPU %d (max %d)",
skel->rodata->central_cpu, skel->rodata->nr_cpu_ids - 1);
CPU_FREE(cpuset);