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| author | Ken-ichirou MATSUZAWA <chamaken@gmail.com> | 2015-08-20 12:43:53 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-23 16:04:46 -0700 |
| commit | c953e23936f902c7719166327e3113639105c981 (patch) | |
| tree | ee8594db6b25182cb5c37032eff933810b218c6f /net | |
| parent | 0bad90985d39e69ca035fdd70bcc743812641d18 (diff) | |
| download | linux-c953e23936f902c7719166327e3113639105c981.tar.gz linux-c953e23936f902c7719166327e3113639105c981.tar.xz | |
netlink: mmap: fix tx type check
I can't send netlink message via mmaped netlink socket since
commit: a8866ff6a5bce7d0ec465a63bc482a85c09b0d39
netlink: make the check for "send from tx_ring" deterministic
msg->msg_iter.type is set to WRITE (1) at
SYSCALL_DEFINE6(sendto, ...
import_single_range(WRITE, ...
iov_iter_init(1, WRITE, ...
call path, so that we need to check the type by iter_is_iovec()
to accept the WRITE.
Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netlink/af_netlink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 67d210477863..a774985489e2 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2401,7 +2401,7 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) * sendmsg(), but that's what we've got... */ if (netlink_tx_is_mmaped(sk) && - msg->msg_iter.type == ITER_IOVEC && + iter_is_iovec(&msg->msg_iter) && msg->msg_iter.nr_segs == 1 && msg->msg_iter.iov->iov_base == NULL) { err = netlink_mmap_sendmsg(sk, msg, dst_portid, dst_group, |