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bug: Allow architectures to provide __WARN_printf() 

In addition to providing __WARN_FLAGS(), allow an architecture to also
provide __WARN_printf().

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.807154591@infradead.org
This commit is contained in:
Peter Zijlstra 2025-06-02 15:08:36 +02:00
parent 3fd45b871f
commit b9b2c455f4
1 changed files with 22 additions and 15 deletions
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37
include/asm-generic/bug.h
View File

@ -100,23 +100,9 @@ void warn_slowpath_fmt(const char *file, const int line, unsigned taint,
const char *fmt, ...); const char *fmt, ...);
extern __printf(1, 2) void __warn_printk(const char *fmt, ...); extern __printf(1, 2) void __warn_printk(const char *fmt, ...);
#ifndef __WARN_FLAGS #ifdef __WARN_FLAGS
#define __WARN() __WARN_printf(TAINT_WARN, NULL)
#define __WARN_printf(taint, arg...) do { \
instrumentation_begin(); \
warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \
instrumentation_end(); \
} while (0)
#else
#define __WARN() __WARN_FLAGS("", BUGFLAG_TAINT(TAINT_WARN)) #define __WARN() __WARN_FLAGS("", BUGFLAG_TAINT(TAINT_WARN))
#define __WARN_printf(taint, arg...) do { \
instrumentation_begin(); \
__warn_printk(arg); \
__WARN_FLAGS("", BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
instrumentation_end(); \
} while (0)
#ifndef WARN_ON #ifndef WARN_ON
#define WARN_ON(condition) ({ \ #define WARN_ON(condition) ({ \
int __ret_warn_on = !!(condition); \ int __ret_warn_on = !!(condition); \
@ -139,6 +125,27 @@ extern __printf(1, 2) void __warn_printk(const char *fmt, ...);
#endif #endif
#endif /* __WARN_FLAGS */ #endif /* __WARN_FLAGS */
#if defined(__WARN_FLAGS) && !defined(__WARN_printf)
#define __WARN_printf(taint, arg...) do { \
instrumentation_begin(); \
__warn_printk(arg); \
__WARN_FLAGS("", BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
instrumentation_end(); \
} while (0)
#endif
#ifndef __WARN_printf
#define __WARN_printf(taint, arg...) do { \
instrumentation_begin(); \
warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \
instrumentation_end(); \
} while (0)
#endif
#ifndef __WARN
#define __WARN() __WARN_printf(TAINT_WARN, NULL)
#endif
/* used internally by panic.c */ /* used internally by panic.c */
#ifndef WARN_ON #ifndef WARN_ON