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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-12-15 21:39:31 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-11 15:53:35 -0400 |
| commit | 01e97e6517053d7c0b9af5248e944a9209909cf5 (patch) | |
| tree | 30f57eededa62a390543b3a596d81006deb22384 /include/linux/socket.h | |
| parent | Merge remote-tracking branch 'dh/afs' into for-davem (diff) | |
| download | wireguard-linux-01e97e6517053d7c0b9af5248e944a9209909cf5.tar.xz wireguard-linux-01e97e6517053d7c0b9af5248e944a9209909cf5.zip | |
new helper: msg_data_left()
convert open-coded instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/socket.h')
| -rw-r--r-- | include/linux/socket.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h index c9852ef7e317..5bf59c8493b7 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -139,6 +139,11 @@ static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg); } +static inline size_t msg_data_left(struct msghdr *msg) +{ + return iov_iter_count(&msg->msg_iter); +} + /* "Socket"-level control message types: */ #define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */ |