1 files changed, 13 insertions, 1 deletions

diff --git a/include/net/compat.h b/include/net/compat.h
index 7c3002832d05..3c7d4e38fa1d 100644
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -18,6 +18,11 @@ struct compat_msghdr {
         compat_uint_t   msg_flags;
 };
 
+struct compat_mmsghdr {
+        struct compat_msghdr msg_hdr;
+        compat_uint_t        msg_len;
+};
+
 struct compat_cmsghdr {
         compat_size_t   cmsg_len;
         compat_int_t    cmsg_level;
@@ -28,13 +33,20 @@ extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
 extern int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
 
 #else /* defined(CONFIG_COMPAT) */
-#define compat_msghdr   msghdr          /* to avoid compiler warnings */
+/*
+ * To avoid compiler warnings:
+ */
+#define compat_msghdr   msghdr
+#define compat_mmsghdr  mmsghdr
 #endif /* defined(CONFIG_COMPAT) */
 
 extern int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *);
 extern int verify_compat_iovec(struct msghdr *, struct iovec *, struct sockaddr *, int);
 extern asmlinkage long compat_sys_sendmsg(int,struct compat_msghdr __user *,unsigned);
 extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned);
+extern asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *,
+                                           unsigned, unsigned,
+                                           struct timespec __user *);
 extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
 extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);