1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 59966f12990c..7b3aae2052a6 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -24,6 +24,9 @@ struct __kernel_sockaddr_storage {
 #include <linux/types.h>                /* pid_t                        */
 #include <linux/compiler.h>             /* __user                       */
 
+#define __sockaddr_check_size(size)     \
+        BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))
+
 #ifdef __KERNEL__
 # ifdef CONFIG_PROC_FS
 struct seq_file;