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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-25 12:19:28 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-25 12:19:49 +0300
commit2dd68cc7fd8c3ae9c151c0565824b5ef42e3806b (patch)
treed6ca7697fb793175ea5e29daf9d0cc0677b7d15a /drivers/net/tun.c
parent02214bfc89c71bcc5167f653994cfa5c57f10ff1 (diff)
parentf4a518797b40e956b6e6220b42657e045dc24470 (diff)
downloadlinux-2dd68cc7fd8c3ae9c151c0565824b5ef42e3806b.tar.xz
Merge gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net
Dave writes: "Networking fixes: 1) Fix multiqueue handling of coalesce timer in stmmac, from Jose Abreu. 2) Fix memory corruption in NFC, from Suren Baghdasaryan. 3) Don't write reserved bits in ravb driver, from Kazuya Mizuguchi. 4) SMC bug fixes from Karsten Graul, YueHaibing, and Ursula Braun. 5) Fix TX done race in mvpp2, from Antoine Tenart. 6) ipv6 metrics leak, from Wei Wang. 7) Adjust firmware version requirements in mlxsw, from Petr Machata. 8) Fix autonegotiation on resume in r8169, from Heiner Kallweit. 9) Fixed missing entries when dumping /proc/net/if_inet6, from Jeff Barnhill. 10) Fix double free in devlink, from Dan Carpenter. 11) Fix ethtool regression from UFO feature removal, from Maciej Żenczykowski. 12) Fix drivers that have a ndo_poll_controller() that captures the cpu entirely on loaded hosts by trying to drain all rx and tx queues, from Eric Dumazet. 13) Fix memory corruption with jumbo frames in aquantia driver, from Friedemann Gerold." * gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (79 commits) net: mvneta: fix the remaining Rx descriptor unmapping issues ip_tunnel: be careful when accessing the inner header mpls: allow routes on ip6gre devices net: aquantia: memory corruption on jumbo frames tun: remove ndo_poll_controller nfp: remove ndo_poll_controller bnxt: remove ndo_poll_controller bnx2x: remove ndo_poll_controller mlx5: remove ndo_poll_controller mlx4: remove ndo_poll_controller i40evf: remove ndo_poll_controller ice: remove ndo_poll_controller igb: remove ndo_poll_controller ixgb: remove ndo_poll_controller fm10k: remove ndo_poll_controller ixgbevf: remove ndo_poll_controller ixgbe: remove ndo_poll_controller bonding: use netpoll_poll_dev() helper netpoll: make ndo_poll_controller() optional rds: Fix build regression. ...
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c43
1 files changed, 0 insertions, 43 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index ebd07ad82431..e2648b5a3861 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1153,43 +1153,6 @@ static netdev_features_t tun_net_fix_features(struct net_device *dev,
return (features & tun->set_features) | (features & ~TUN_USER_FEATURES);
}
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void tun_poll_controller(struct net_device *dev)
-{
- /*
- * Tun only receives frames when:
- * 1) the char device endpoint gets data from user space
- * 2) the tun socket gets a sendmsg call from user space
- * If NAPI is not enabled, since both of those are synchronous
- * operations, we are guaranteed never to have pending data when we poll
- * for it so there is nothing to do here but return.
- * We need this though so netpoll recognizes us as an interface that
- * supports polling, which enables bridge devices in virt setups to
- * still use netconsole
- * If NAPI is enabled, however, we need to schedule polling for all
- * queues unless we are using napi_gro_frags(), which we call in
- * process context and not in NAPI context.
- */
- struct tun_struct *tun = netdev_priv(dev);
-
- if (tun->flags & IFF_NAPI) {
- struct tun_file *tfile;
- int i;
-
- if (tun_napi_frags_enabled(tun))
- return;
-
- rcu_read_lock();
- for (i = 0; i < tun->numqueues; i++) {
- tfile = rcu_dereference(tun->tfiles[i]);
- if (tfile->napi_enabled)
- napi_schedule(&tfile->napi);
- }
- rcu_read_unlock();
- }
- return;
-}
-#endif
static void tun_set_headroom(struct net_device *dev, int new_hr)
{
@@ -1283,9 +1246,6 @@ static const struct net_device_ops tun_netdev_ops = {
.ndo_start_xmit = tun_net_xmit,
.ndo_fix_features = tun_net_fix_features,
.ndo_select_queue = tun_select_queue,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = tun_poll_controller,
-#endif
.ndo_set_rx_headroom = tun_set_headroom,
.ndo_get_stats64 = tun_net_get_stats64,
};
@@ -1365,9 +1325,6 @@ static const struct net_device_ops tap_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_select_queue = tun_select_queue,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = tun_poll_controller,
-#endif
.ndo_features_check = passthru_features_check,
.ndo_set_rx_headroom = tun_set_headroom,
.ndo_get_stats64 = tun_net_get_stats64,