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Subject[tip:x86/asm] debug: Avoid setting BUGFLAG_WARNING twice
Commit-ID:  f26dee15103f4040bfe21c910131db0cfe6624fc
Gitweb: http://git.kernel.org/tip/f26dee15103f4040bfe21c910131db0cfe6624fc
Author: Peter Zijlstra <peterz@infradead.org>
AuthorDate: Mon, 10 Apr 2017 10:49:39 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 14 Apr 2017 10:20:13 +0200

debug: Avoid setting BUGFLAG_WARNING twice

Dan reported that his static checking complains about BUGFLAG_WARNING
being set on both sides of the bitwise-or, it figures that that might've
been an unintentional mistake.

Since there are no architectures that implement __WARN_TAINT() (I
converted them all to implement __WARN_FLAGS()), and all __WARN_FLAGS()
implementations already set BUGFLAG_WARNING, we can remove the bit from
BUGFLAG_TAINT() and make Dan's checker happy.

Reported-by: Dan Carpenter <dan.carpenter@oracle.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>
Link: http://lkml.kernel.org/r/20170410084939.4bwhrvpmauwfzauq@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/asm-generic/bug.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 5fe9f39..d6f4aed 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -7,7 +7,7 @@
#define BUGFLAG_WARNING (1 << 0)
#define BUGFLAG_ONCE (1 << 1)
#define BUGFLAG_DONE (1 << 2)
-#define BUGFLAG_TAINT(taint) (BUGFLAG_WARNING | ((taint) << 8))
+#define BUGFLAG_TAINT(taint) ((taint) << 8)
#define BUG_GET_TAINT(bug) ((bug)->flags >> 8)
#endif

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