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| author | Mike Marshall <hubcap@omnibond.com> | 2017-02-25 11:12:48 -0500 |
|---|---|---|
| committer | Mike Marshall <hubcap@omnibond.com> | 2017-02-25 11:12:48 -0500 |
| commit | e98bdb3059cbf2b1cd4261e126b08429f64466c3 (patch) | |
| tree | e378fc95b495cc6e0e558f247e99bcaa21a6d567 /include/linux/bug.h | |
| parent | eb68d0324dc4d88ab0d6159bdcd98c247a3a8954 (diff) | |
| parent | c470abd4fde40ea6a0846a2beab642a578c0b8cd (diff) | |
Merge tag 'v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into for-next
Linux 4.10
Diffstat (limited to 'include/linux/bug.h')
| -rw-r--r-- | include/linux/bug.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/bug.h b/include/linux/bug.h index 292d6a10b0c2..baff2e8fc8a8 100644 --- a/include/linux/bug.h +++ b/include/linux/bug.h @@ -121,4 +121,21 @@ static inline enum bug_trap_type report_bug(unsigned long bug_addr, } #endif /* CONFIG_GENERIC_BUG */ + +/* + * Since detected data corruption should stop operation on the affected + * structures, this returns false if the corruption condition is found. + */ +#define CHECK_DATA_CORRUPTION(condition, fmt, ...) \ + do { \ + if (unlikely(condition)) { \ + if (IS_ENABLED(CONFIG_BUG_ON_DATA_CORRUPTION)) { \ + pr_err(fmt, ##__VA_ARGS__); \ + BUG(); \ + } else \ + WARN(1, fmt, ##__VA_ARGS__); \ + return false; \ + } \ + } while (0) + #endif /* _LINUX_BUG_H */ |