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| author | Kees Cook <keescook@chromium.org> | 2019-09-25 16:48:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-25 17:51:41 -0700 |
| commit | 2da1ead4d5f7fa5f61e5805655de1e245d03a763 (patch) | |
| tree | 9974c7cb6d44f040f865c3a411c57f3c1903af76 | |
| parent | d4bce140b4e739bceb4e239d4842cf8f346c1e0f (diff) | |
| download | linux-2da1ead4d5f7fa5f61e5805655de1e245d03a763.tar.bz2 | |
bug: consolidate __WARN_FLAGS usage
Instead of having separate tests for __WARN_FLAGS, merge the two #ifdef
blocks and replace the synonym WANT_WARN_ON_SLOWPATH macro.
Link: http://lkml.kernel.org/r/20190819234111.9019-7-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Drew Davenport <ddavenport@chromium.org>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/asm-generic/bug.h | 18 | ||||
| -rw-r--r-- | kernel/panic.c | 2 |
2 files changed, 8 insertions, 12 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 4b18e09094cf..b4a2639130a0 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -61,16 +61,6 @@ struct bug_entry { #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0) #endif -#ifdef __WARN_FLAGS -#define WARN_ON_ONCE(condition) ({ \ - int __ret_warn_on = !!(condition); \ - if (unlikely(__ret_warn_on)) \ - __WARN_FLAGS(BUGFLAG_ONCE | \ - BUGFLAG_TAINT(TAINT_WARN)); \ - unlikely(__ret_warn_on); \ -}) -#endif - /* * WARN(), WARN_ON(), WARN_ON_ONCE, and so on can be used to report * significant kernel issues that need prompt attention if they should ever @@ -91,7 +81,6 @@ struct bug_entry { extern __printf(4, 5) void warn_slowpath_fmt(const char *file, const int line, unsigned taint, const char *fmt, ...); -#define WANT_WARN_ON_SLOWPATH #define __WARN() __WARN_printf(TAINT_WARN, NULL) #define __WARN_printf(taint, arg...) \ warn_slowpath_fmt(__FILE__, __LINE__, taint, arg) @@ -105,6 +94,13 @@ extern __printf(1, 2) void __warn_printk(const char *fmt, ...); __warn_printk(arg); \ __WARN_FLAGS(BUGFLAG_TAINT(taint)); \ } while (0) +#define WARN_ON_ONCE(condition) ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + __WARN_FLAGS(BUGFLAG_ONCE | \ + BUGFLAG_TAINT(TAINT_WARN)); \ + unlikely(__ret_warn_on); \ +}) #endif /* used internally by panic.c */ diff --git a/kernel/panic.c b/kernel/panic.c index a643e5464296..47e8ebccc22b 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -596,7 +596,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint, add_taint(taint, LOCKDEP_STILL_OK); } -#ifdef WANT_WARN_ON_SLOWPATH +#ifndef __WARN_FLAGS void warn_slowpath_fmt(const char *file, int line, unsigned taint, const char *fmt, ...) { |