github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-12 16:18:45 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

sched_ext: fix application of sizeof to pointer

Browse Source 
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: 22a920209a ("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>
This commit is contained in:
guanjing 2024-11-17 10:51:29 +08:00 committed by Tejun Heo
parent ef7009decc
commit f24d192985
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/sched_ext/scx_central.c
View File

@ -97,7 +97,7 @@ int main(int argc, char **argv)
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);