diff options
| author | Andi Kleen <[email protected]> | 2017-11-17 15:27:06 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2017-11-17 16:10:01 -0800 |
| commit | aaf5dcfb223617ac2d16113e4b500199c65689de (patch) | |
| tree | 708dbc2baef2f18cfb368b2e785642f6a4ece283 /include/linux | |
| parent | b1fca27d384e8418aac84b39f6f5179aecc1b64f (diff) | |
kernel debug: support resetting WARN_ONCE for all architectures
Some architectures store the WARN_ONCE state in the flags field of the
bug_entry. Clear that one too when resetting once state through
/sys/kernel/debug/clear_warn_once
Pointed out by Michael Ellerman
Improves the earlier patch that add clear_warn_once.
[[email protected]: add a missing ifdef CONFIG_MODULES]
Link: http://lkml.kernel.org/r/[email protected]
[[email protected]: fix unused var warning]
[[email protected]: Use 0200 for clear_warn_once file, per mpe]
[[email protected]: clear BUGFLAG_DONE in clear_once_table(), per mpe]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Andi Kleen <[email protected]>
Tested-by: Michael Ellerman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bug.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/bug.h b/include/linux/bug.h index da4231c905c8..fe5916550da8 100644 --- a/include/linux/bug.h +++ b/include/linux/bug.h @@ -43,6 +43,8 @@ enum bug_trap_type report_bug(unsigned long bug_addr, struct pt_regs *regs); /* These are defined by the architecture */ int is_valid_bugaddr(unsigned long addr); +void generic_bug_clear_once(void); + #else /* !CONFIG_GENERIC_BUG */ static inline enum bug_trap_type report_bug(unsigned long bug_addr, @@ -51,6 +53,9 @@ static inline enum bug_trap_type report_bug(unsigned long bug_addr, return BUG_TRAP_TYPE_BUG; } + +static inline void generic_bug_clear_once(void) {} + #endif /* CONFIG_GENERIC_BUG */ /* |