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| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-01-30 08:57:22 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-01-30 08:57:22 +0100 |
| commit | 1b62d134d3c5f9e67de096af7ea3e9fe48966f17 (patch) | |
| tree | be30467e997cc8ba0d350309dd498f00cb69969b /include/linux/bug.h | |
| parent | ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table() (diff) | |
| parent | ACPICA: Update version to 20161222 (diff) | |
| download | wireguard-linux-1b62d134d3c5f9e67de096af7ea3e9fe48966f17.tar.xz wireguard-linux-1b62d134d3c5f9e67de096af7ea3e9fe48966f17.zip | |
Merge back earlier ACPICA changes for v4.11.
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 */ |