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sched/fair: Mark m*_vruntime() with __maybe_unused

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When max_vruntime() is unused, it prevents kernel builds with clang,
`make W=1` and CONFIG_WERROR=y:

kernel/sched/fair.c:526:19: error: unused function 'max_vruntime' [-Werror,-Wunused-function]
  526 | static inline u64 max_vruntime(u64 max_vruntime, u64 vruntime)
      |                   ^~~~~~~~~~~~

Fix this by marking them with __maybe_unused (all cases for the sake of
symmetry).

See also commit 6863f5643d ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20241202173546.634433-1-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2024-12-02 19:35:30 +02:00 committed by Peter Zijlstra
parent 0429489e09
commit 95d9fed3a2
1 changed files with 2 additions and 2 deletions
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4
kernel/sched/fair.c
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@ -523,7 +523,7 @@ void account_cfs_rq_runtime(struct cfs_rq *cfs_rq, u64 delta_exec);
* Scheduling class tree data structure manipulation methods:
*/
static inline u64 max_vruntime(u64 max_vruntime, u64 vruntime)
static inline __maybe_unused u64 max_vruntime(u64 max_vruntime, u64 vruntime)
{
s64 delta = (s64)(vruntime - max_vruntime);
if (delta > 0)
@ -532,7 +532,7 @@ static inline u64 max_vruntime(u64 max_vruntime, u64 vruntime)
return max_vruntime;
}
static inline u64 min_vruntime(u64 min_vruntime, u64 vruntime)
static inline __maybe_unused u64 min_vruntime(u64 min_vruntime, u64 vruntime)
{
s64 delta = (s64)(vruntime - min_vruntime);
if (delta < 0)