disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/virtio_net.h
..
..
@@ -103,10 +103,18 @@
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 		if (gso_type && skb->network_header) {
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 			struct flow_keys_basic keys;
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105
 
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-			if (!skb->protocol)
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-				virtio_net_hdr_set_proto(skb, hdr);
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+			if (!skb->protocol) {
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+				__be16 protocol = dev_parse_header_protocol(skb);
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+
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+				if (!protocol)
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+					virtio_net_hdr_set_proto(skb, hdr);
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+				else if (!virtio_net_hdr_match_proto(protocol, hdr->gso_type))
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+					return -EINVAL;
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+				else
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+					skb->protocol = protocol;
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+			}
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 retry:
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-			if (!skb_flow_dissect_flow_keys_basic(skb, &keys,
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+			if (!skb_flow_dissect_flow_keys_basic(NULL, skb, &keys,
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 							      NULL, 0, 0, 0,
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 							      0)) {
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 				/* UFO does not specify ipv4 or 6: try both */
..
..
@@ -140,6 +148,10 @@
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 		if (gso_type & SKB_GSO_UDP)
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 			nh_off -= thlen;
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+		/* Kernel has a special handling for GSO_BY_FRAGS. */
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+		if (gso_size == GSO_BY_FRAGS)
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+			return -EINVAL;
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+
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 		/* Too small packets are not really GSO ones. */
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 		if (skb->len - nh_off > gso_size) {
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 			shinfo->gso_size = gso_size;