diff options
| author | Andrea Righi <arighi@nvidia.com> | 2026-03-22 07:51:46 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-03-22 10:02:49 -1000 |
| commit | 63f500c32a37d490ec623a3130e488cdb9bd6cf7 (patch) | |
| tree | 87e00f52220662e0332e3007be273f5b2b17b562 /kernel | |
| parent | e73b1d7210c02ff223e2786934d5a6e73eab1999 (diff) | |
sched_ext: Guard cpu_smt_mask() with CONFIG_SCHED_SMT
Wrap cpu_smt_mask() usage with CONFIG_SCHED_SMT to avoid build failures
on kernels built without SMT support.
Fixes: 2197cecdb02c ("sched_ext: idle: Prioritize idle SMT sibling")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202603221422.XIueJOE9-lkp@intel.com/
Signed-off-by: Andrea Righi <arighi@nvidia.com>
Reviewed-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/ext_idle.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/ext_idle.c b/kernel/sched/ext_idle.c index d9596427b5aa..857d8e902b44 100644 --- a/kernel/sched/ext_idle.c +++ b/kernel/sched/ext_idle.c @@ -622,6 +622,7 @@ s32 scx_select_cpu_dfl(struct task_struct *p, s32 prev_cpu, u64 wake_flags, goto out_unlock; } +#ifdef CONFIG_SCHED_SMT /* * Use @prev_cpu's sibling if it's idle. */ @@ -633,6 +634,7 @@ s32 scx_select_cpu_dfl(struct task_struct *p, s32 prev_cpu, u64 wake_flags, goto out_unlock; } } +#endif /* * Search for any idle CPU in the same LLC domain. |