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 */