Merge tag 'net-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, wifi and ipsec.

  A little more changes than usual, but it's pretty normal for us that
  the rc3/rc4 PRs are oversized as people start testing in earnest.

  Possibly an extra boost from people deploying the 6.1 LTS but that's
  more of an unscientific hunch.

  Current release - regressions:

   - phy: mscc: fix deadlock in phy_ethtool_{get,set}_wol()

   - virtio: vsock: don't use skbuff state to account credit

   - virtio: vsock: don't drop skbuff on copy failure

   - virtio_net: fix page_to_skb() miscalculating the memory size

  Current release - new code bugs:

   - eth: correct xdp_features after device reconfig

   - wifi: nl80211: fix the puncturing bitmap policy

   - net/mlx5e: flower:
      - fix raw counter initialization
      - fix missing error code
      - fix cloned flow attribute

   - ipa:
      - fix some register validity checks
      - fix a surprising number of bad offsets
      - kill FILT_ROUT_CACHE_CFG IPA register

  Previous releases - regressions:

   - tcp: fix bind() conflict check for dual-stack wildcard address

   - veth: fix use after free in XDP_REDIRECT when skb headroom is small

   - ipv4: fix incorrect table ID in IOCTL path

   - ipvlan: make skb->skb_iif track skb->dev for l3s mode

   - mptcp:
      - fix possible deadlock in subflow_error_report
      - fix UaFs when destroying unaccepted and listening sockets

   - dsa: mv88e6xxx: fix max_mtu of 1492 on 6165, 6191, 6220, 6250, 6290

  Previous releases - always broken:

   - tcp: tcp_make_synack() can be called from process context, don't
     assume preemption is disabled when updating stats

   - netfilter: correct length for loading protocol registers

   - virtio_net: add checking sq is full inside xdp xmit

   - bonding: restore IFF_MASTER/SLAVE flags on bond enslave Ethertype
     change

   - phy: nxp-c45-tja11xx: fix MII_BASIC_CONFIG_REV bit number

   - eth: i40e: fix crash during reboot when adapter is in recovery mode

   - eth: ice: avoid deadlock on rtnl lock when auxiliary device
     plug/unplug meets bonding

   - dsa: mt7530:
      - remove now incorrect comment regarding port 5
      - set PLL frequency and trgmii only when trgmii is used

   - eth: mtk_eth_soc: reset PCS state when changing interface types

  Misc:

   - ynl: another license adjustment

   - move the TCA_EXT_WARN_MSG attribute for tc action"

* tag 'net-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
  selftests: bonding: add tests for ether type changes
  bonding: restore bond's IFF_SLAVE flag if a non-eth dev enslave fails
  bonding: restore IFF_MASTER/SLAVE flags on bond enslave ether type change
  net: renesas: rswitch: Fix GWTSDIE register handling
  net: renesas: rswitch: Fix the output value of quote from rswitch_rx()
  ethernet: sun: add check for the mdesc_grab()
  net: ipa: fix some register validity checks
  net: ipa: kill FILT_ROUT_CACHE_CFG IPA register
  net: ipa: add two missing declarations
  net: ipa: reg: include <linux/bug.h>
  net: xdp: don't call notifiers during driver init
  net/sched: act_api: add specific EXT_WARN_MSG for tc action
  Revert "net/sched: act_api: move TCA_EXT_WARN_MSG to the correct hierarchy"
  net: dsa: microchip: fix RGMII delay configuration on KSZ8765/KSZ8794/KSZ8795
  ynl: make the tooling check the license
  ynl: broaden the license even more
  tools: ynl: make definitions optional again
  hsr: ratelimit only when errors are printed
  qed/qed_mng_tlv: correctly zero out ->min instead of ->hour
  selftests: net: devlink_port_split.py: skip test if no suitable device available
  ...

1 files changed, 40 insertions, 8 deletions

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 1bb54de7124d..a30a66cace14 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -708,7 +708,8 @@ static int veth_convert_skb_to_xdp_buff(struct veth_rq *rq,
 	u32 frame_sz;
 
 	if (skb_shared(skb) || skb_head_is_locked(skb) ||
-	    skb_shinfo(skb)->nr_frags) {
+	    skb_shinfo(skb)->nr_frags ||
+	    skb_headroom(skb) < XDP_PACKET_HEADROOM) {
 		u32 size, len, max_head_size, off;
 		struct sk_buff *nskb;
 		struct page *page;
@@ -773,9 +774,6 @@ static int veth_convert_skb_to_xdp_buff(struct veth_rq *rq,
 
 		consume_skb(skb);
 		skb = nskb;
-	} else if (skb_headroom(skb) < XDP_PACKET_HEADROOM &&
-		   pskb_expand_head(skb, VETH_XDP_HEADROOM, 0, GFP_ATOMIC)) {
-		goto drop;
 	}
 
 	/* SKB "head" area always have tailroom for skb_shared_info */
@@ -1257,6 +1255,26 @@ static int veth_enable_range_safe(struct net_device *dev, int start, int end)
 	return 0;
 }
 
+static void veth_set_xdp_features(struct net_device *dev)
+{
+	struct veth_priv *priv = netdev_priv(dev);
+	struct net_device *peer;
+
+	peer = rtnl_dereference(priv->peer);
+	if (peer && peer->real_num_tx_queues <= dev->real_num_rx_queues) {
+		xdp_features_t val = NETDEV_XDP_ACT_BASIC |
+				     NETDEV_XDP_ACT_REDIRECT |
+				     NETDEV_XDP_ACT_RX_SG;
+
+		if (priv->_xdp_prog || veth_gro_requested(dev))
+			val |= NETDEV_XDP_ACT_NDO_XMIT |
+			       NETDEV_XDP_ACT_NDO_XMIT_SG;
+		xdp_set_features_flag(dev, val);
+	} else {
+		xdp_clear_features_flag(dev);
+	}
+}
+
 static int veth_set_channels(struct net_device *dev,
 			     struct ethtool_channels *ch)
 {
@@ -1323,6 +1341,12 @@ out:
 		if (peer)
 			netif_carrier_on(peer);
 	}
+
+	/* update XDP supported features */
+	veth_set_xdp_features(dev);
+	if (peer)
+		veth_set_xdp_features(peer);
+
 	return err;
 
 revert:
@@ -1489,7 +1513,10 @@ static int veth_set_features(struct net_device *dev,
 		err = veth_napi_enable(dev);
 		if (err)
 			return err;
+
+		xdp_features_set_redirect_target(dev, true);
 	} else {
+		xdp_features_clear_redirect_target(dev);
 		veth_napi_del(dev);
 	}
 	return 0;
@@ -1570,10 +1597,15 @@ static int veth_xdp_set(struct net_device *dev, struct bpf_prog *prog,
 			peer->hw_features &= ~NETIF_F_GSO_SOFTWARE;
 			peer->max_mtu = max_mtu;
 		}
+
+		xdp_features_set_redirect_target(dev, true);
 	}
 
 	if (old_prog) {
 		if (!prog) {
+			if (!veth_gro_requested(dev))
+				xdp_features_clear_redirect_target(dev);
+
 			if (dev->flags & IFF_UP)
 				veth_disable_xdp(dev);
 
@@ -1686,10 +1718,6 @@ static void veth_setup(struct net_device *dev)
 	dev->hw_enc_features = VETH_FEATURES;
 	dev->mpls_features = NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE;
 	netif_set_tso_max_size(dev, GSO_MAX_SIZE);
-
-	dev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
-			    NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG |
-			    NETDEV_XDP_ACT_NDO_XMIT_SG;
 }
 
 /*
@@ -1857,6 +1885,10 @@ static int veth_newlink(struct net *src_net, struct net_device *dev,
 		goto err_queues;
 
 	veth_disable_gro(dev);
+	/* update XDP supported features */
+	veth_set_xdp_features(dev);
+	veth_set_xdp_features(peer);
+
 	return 0;
 
 err_queues: