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ovs-thread: Mark lock and unlock functions as no_thread_safety_analysis.

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I don't see any other way to make Clang realize that these are the real
mutex implementation functions.

I first noticed these warnings with Clang 1:3.4~svn188890-1~exp1.
I previously used version 1:3.4~svn187484-1~exp1.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
This commit is contained in:
Ben Pfaff
2013-08-21 11:24:49 -07:00
parent 0d56eaf2e0
commit da2035617f
2 changed files with 6 additions and 0 deletions
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3
lib/compiler.h
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@@ -128,6 +128,8 @@
#define OVS_EXCLUDED(...) __attribute__((locks_excluded(__VA_ARGS__)))
#define OVS_ACQ_BEFORE(...) __attribute__((acquired_before(__VA_ARGS__)))
#define OVS_ACQ_AFTER(...) __attribute__((acquired_after(__VA_ARGS__)))
#define OVS_NO_THREAD_SAFETY_ANALYSIS \
__attribute__((no_thread_safety_analysis))
#else /* not Clang */
#define OVS_LOCKABLE
#define OVS_REQ_RDLOCK(...)
@@ -145,6 +147,7 @@
#define OVS_RELEASES(...)
#define OVS_ACQ_BEFORE(...)
#define OVS_ACQ_AFTER(...)
#define OVS_NO_THREAD_SAFETY_ANALYSIS
#endif
/* ISO C says that a C implementation may choose any integer type for an enum