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sched/debug: Explicitly cast sched_feat() to bool

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[ Upstream commit 7e6f4c5d60 ]

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@gmail.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Peter Zijlstra 2018-08-29 11:45:21 +02:00 • committed by Greg Kroah-Hartman
commit e4e5226098
1 changed files with 1 additions and 1 deletions
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2
kernel/sched/sched.h
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@ -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 */