Merge v6.18.40linux-rolling-lts

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 23 insertions, 4 deletions

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index aed65dbf3fca..d2fe26bfaccd 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2105,15 +2105,18 @@ static struct sk_buff *receive_big(struct net_device *dev,
 				   struct virtnet_rq_stats *stats)
 {
 	struct page *page = buf;
+	unsigned long max_len;
 	struct sk_buff *skb;
 
+	max_len = (vi->big_packets_num_skbfrags + 1) * PAGE_SIZE -
+		  sizeof(struct padded_vnet_hdr) + vi->hdr_len;
+
 	/* Make sure that len does not exceed the size allocated in
 	 * add_recvbuf_big.
 	 */
-	if (unlikely(len > (vi->big_packets_num_skbfrags + 1) * PAGE_SIZE)) {
+	if (unlikely(len > max_len)) {
 		pr_debug("%s: rx error: len %u exceeds allocated size %lu\n",
-			 dev->name, len,
-			 (vi->big_packets_num_skbfrags + 1) * PAGE_SIZE);
+			 dev->name, len, max_len);
 		goto err;
 	}
 
@@ -3125,6 +3128,9 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
 	unsigned int xdp_xmit = 0;
 	bool napi_complete;
 
+	if (budget)
+		virtqueue_disable_cb(rq->vq);
+
 	virtnet_poll_cleantx(rq, budget);
 
 	received = virtnet_receive(rq, budget, &xdp_xmit);
@@ -6280,6 +6286,19 @@ static void virtnet_free_irq_moder(struct virtnet_info *vi)
 	rtnl_unlock();
 }
 
+static netdev_features_t virtnet_features_check(struct sk_buff *skb,
+						struct net_device *dev,
+						netdev_features_t features)
+{
+	/* Inner csum offload is only available for GSO packets. */
+	if (skb->encapsulation &&
+	    (!skb_is_gso(skb) || netif_needs_gso(skb, features)))
+		return features & ~NETIF_F_CSUM_MASK;
+
+	/* Passthru. */
+	return features;
+}
+
 static const struct net_device_ops virtnet_netdev = {
 	.ndo_open            = virtnet_open,
 	.ndo_stop   	     = virtnet_close,
@@ -6293,7 +6312,7 @@ static const struct net_device_ops virtnet_netdev = {
 	.ndo_bpf		= virtnet_xdp,
 	.ndo_xdp_xmit		= virtnet_xdp_xmit,
 	.ndo_xsk_wakeup         = virtnet_xsk_wakeup,
-	.ndo_features_check	= passthru_features_check,
+	.ndo_features_check	= virtnet_features_check,
 	.ndo_get_phys_port_name	= virtnet_get_phys_port_name,
 	.ndo_set_features	= virtnet_set_features,
 	.ndo_tx_timeout		= virtnet_tx_timeout,