diff options
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 657e4fd38a77..a0aa56e6b782 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -254,9 +254,12 @@ unsigned long __read_once_word_nocheck(const void *addr) */ #define READ_ONCE_NOCHECK(x) \ ({ \ - unsigned long __x = __read_once_word_nocheck(&(x)); \ + unsigned long __x; \ + compiletime_assert(sizeof(x) == sizeof(__x), \ + "Unsupported access size for READ_ONCE_NOCHECK()."); \ + __x = __read_once_word_nocheck(&(x)); \ smp_read_barrier_depends(); \ - __x; \ + (typeof(x))__x; \ }) static __no_kasan_or_inline |