Commit-ID: 7e6f4c5d600c1c8e2a1d900e65cab319d9b6782e Gitweb: https://git.kernel.org/tip/7e6f4c5d600c1c8e2a1d900e65cab319d9b6782e Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx> AuthorDate: Wed, 29 Aug 2018 11:45:21 +0200 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Mon, 10 Sep 2018 11:05:54 +0200 sched/debug: Explicitly cast sched_feat() to bool 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> --- 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 85b3a2bf6c2b..3a4ef8f73f08 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1401,7 +1401,7 @@ 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 && HAVE_JUMP_LABEL */
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