From: Peter Zijlstra <peterz@xxxxxxxxxxxxx> [ Upstream commit 7e6f4c5d600c1c8e2a1d900e65cab319d9b6782e ] LLVM has a warning that tags expressions like: if (foo && non-bool-const) This pattern triggers for CONFIG_SCHED_DEBUG=n where sched_feat() ends up being whatever bit we select. Avoid the warning with an explicit cast to bool. Reported-by: Philipp Klocke <philipp97kl@xxxxxxxxx> Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- kernel/sched/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 62058fd6dcf63..94bec97bd5e28 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1389,7 +1389,7 @@ static const_debug __maybe_unused unsigned int sysctl_sched_features = 0; #undef SCHED_FEAT -#define sched_feat(x) (sysctl_sched_features & (1UL << __SCHED_FEAT_##x)) +#define sched_feat(x) !!(sysctl_sched_features & (1UL << __SCHED_FEAT_##x)) #endif /* SCHED_DEBUG && CONFIG_JUMP_LABEL */ -- 2.20.1
