new helper: msg_data_left()
convert open-coded instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/socket.c b/net/socket.c
index 21676e4..5b01262 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -612,7 +612,7 @@
static inline int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg)
{
- int ret = sock->ops->sendmsg(sock, msg, iov_iter_count(&msg->msg_iter));
+ int ret = sock->ops->sendmsg(sock, msg, msg_data_left(msg));
BUG_ON(ret == -EIOCBQUEUED);
return ret;
}
@@ -620,7 +620,7 @@
int sock_sendmsg(struct socket *sock, struct msghdr *msg)
{
int err = security_socket_sendmsg(sock, msg,
- iov_iter_count(&msg->msg_iter));
+ msg_data_left(msg));
return err ?: sock_sendmsg_nosec(sock, msg);
}