diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2018-10-06 03:46:09 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2018-10-06 03:46:08 -0700 |
| commit | 3b8fc0b7a3fcc809378d82dbf66b417e186af205 (patch) | |
| tree | 6e44c44ec85ddba4faf8cb108b04c47cb3fc4414 /include/linux/bug.h | |
| parent | 8f037f0b363b3907444a3a46b90e293284c6da51 (diff) | |
| parent | d9a879450e01a53b297876072dfc1e541181862b (diff) | |
Merge "Merge android-4.4.158 (f9e4134) into msm-4.4"
Diffstat (limited to 'include/linux/bug.h')
| -rw-r--r-- | include/linux/bug.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/bug.h b/include/linux/bug.h index 91eedf5fae38..218ac5875124 100644 --- a/include/linux/bug.h +++ b/include/linux/bug.h @@ -115,4 +115,23 @@ static inline enum bug_trap_type report_bug(unsigned long bug_addr, #else #define PANIC_CORRUPTION 0 #endif /* CONFIG_PANIC_ON_DATA_CORRUPTION */ + +/* + * Since detected data corruption should stop operation on the affected + * structures. Return value must be checked and sanely acted on by caller. + */ +static inline __must_check bool check_data_corruption(bool v) { return v; } +#define CHECK_DATA_CORRUPTION(condition, fmt, ...) \ + check_data_corruption(({ \ + bool corruption = unlikely(condition); \ + if (corruption) { \ + if (IS_ENABLED(CONFIG_BUG_ON_DATA_CORRUPTION)) { \ + pr_err(fmt, ##__VA_ARGS__); \ + BUG(); \ + } else \ + WARN(1, fmt, ##__VA_ARGS__); \ + } \ + corruption; \ + })) + #endif /* _LINUX_BUG_H */ |