summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--include/linux/container_of.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/container_of.h b/include/linux/container_of.h
index dd56019838c6..2f4944b791b8 100644
--- a/include/linux/container_of.h
+++ b/include/linux/container_of.h
@@ -16,9 +16,9 @@
*/
#define container_of(ptr, type, member) ({ \
void *__mptr = (void *)(ptr); \
- BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
- !__same_type(*(ptr), void), \
- "pointer type mismatch in container_of()"); \
+ static_assert(__same_type(*(ptr), ((type *)0)->member) || \
+ __same_type(*(ptr), void), \
+ "pointer type mismatch in container_of()"); \
((type *)(__mptr - offsetof(type, member))); })
/**
@@ -31,9 +31,9 @@
*/
#define container_of_safe(ptr, type, member) ({ \
void *__mptr = (void *)(ptr); \
- BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
- !__same_type(*(ptr), void), \
- "pointer type mismatch in container_of()"); \
+ static_assert(__same_type(*(ptr), ((type *)0)->member) || \
+ __same_type(*(ptr), void), \
+ "pointer type mismatch in container_of_safe()"); \
IS_ERR_OR_NULL(__mptr) ? ERR_CAST(__mptr) : \
((type *)(__mptr - offsetof(type, member))); })