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-rw-r--r--include/linux/socket.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 048d6d6eed6d..6e49a14365dc 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -103,6 +103,10 @@ struct cmsghdr {
(cmsg)->cmsg_len <= (unsigned long) \
((mhdr)->msg_controllen - \
((char *)(cmsg) - (char *)(mhdr)->msg_control)))
+#define for_each_cmsghdr(cmsg, msg) \
+ for (cmsg = CMSG_FIRSTHDR(msg); \
+ cmsg; \
+ cmsg = CMSG_NXTHDR(msg, cmsg))
/*
* Get the next cmsg header