path: root/net/netlink
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authorKen-ichirou MATSUZAWA <chamaken@gmail.com>2015-08-20 03:43:53 (GMT)
committerDavid S. Miller <davem@davemloft.net>2015-08-23 23:04:46 (GMT)
commitc953e23936f902c7719166327e3113639105c981 (patch)
treeee8594db6b25182cb5c37032eff933810b218c6f /net/netlink
parent0bad90985d39e69ca035fdd70bcc743812641d18 (diff)
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/netlink')
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 67d2104..a774985 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,

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