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authorKees Cook <keescook@chromium.org>2019-09-26 02:48:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-26 03:51:40 +0300
commitd4bce140b4e739bceb4e239d4842cf8f346c1e0f (patch)
tree7b9df32d1c5e38e3578a58336a26f533e0428352 /include
parentd38aba49a9f72b862f1220739ca837c886fdc319 (diff)
downloadlinux-d4bce140b4e739bceb4e239d4842cf8f346c1e0f.tar.xz
bug: clean up helper macros to remove __WARN_TAINT()
In preparation for cleaning up "cut here" even more, this removes the __WARN_*TAINT() helpers, as they limit the ability to add new BUGFLAG_* flags to call sites. They are removed by expanding them into full __WARN_FLAGS() calls. Link: http://lkml.kernel.org/r/20190819234111.9019-6-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>
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/bug.h21
1 files changed, 11 insertions, 10 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 598d7072602f..4b18e09094cf 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -62,13 +62,11 @@ struct bug_entry {
#endif
#ifdef __WARN_FLAGS
-#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
-#define __WARN_ONCE_TAINT(taint) __WARN_FLAGS(BUGFLAG_ONCE|BUGFLAG_TAINT(taint))
-
#define WARN_ON_ONCE(condition) ({ \
int __ret_warn_on = !!(condition); \
if (unlikely(__ret_warn_on)) \
- __WARN_ONCE_TAINT(TAINT_WARN); \
+ __WARN_FLAGS(BUGFLAG_ONCE | \
+ BUGFLAG_TAINT(TAINT_WARN)); \
unlikely(__ret_warn_on); \
})
#endif
@@ -89,7 +87,7 @@ struct bug_entry {
*
* Use the versions with printk format strings to provide better diagnostics.
*/
-#ifndef __WARN_TAINT
+#ifndef __WARN_FLAGS
extern __printf(4, 5)
void warn_slowpath_fmt(const char *file, const int line, unsigned taint,
const char *fmt, ...);
@@ -99,11 +97,14 @@ void warn_slowpath_fmt(const char *file, const int line, unsigned taint,
warn_slowpath_fmt(__FILE__, __LINE__, taint, arg)
#else
extern __printf(1, 2) void __warn_printk(const char *fmt, ...);
-#define __WARN() do { \
- printk(KERN_WARNING CUT_HERE); __WARN_TAINT(TAINT_WARN); \
-} while (0)
-#define __WARN_printf(taint, arg...) \
- do { __warn_printk(arg); __WARN_TAINT(taint); } while (0)
+#define __WARN() do { \
+ printk(KERN_WARNING CUT_HERE); \
+ __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN)); \
+ } while (0)
+#define __WARN_printf(taint, arg...) do { \
+ __warn_printk(arg); \
+ __WARN_FLAGS(BUGFLAG_TAINT(taint)); \
+ } while (0)
#endif
/* used internally by panic.c */