change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/net/ipv4/route.c
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@@ -1240,6 +1240,7 @@
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 static void ipv4_send_dest_unreach(struct sk_buff *skb)
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 {
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+	struct net_device *dev;
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 	struct ip_options opt;
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 	int res;
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@@ -1257,7 +1258,8 @@
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 		opt.optlen = ip_hdr(skb)->ihl * 4 - sizeof(struct iphdr);
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 		rcu_read_lock();
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-		res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL);
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+		dev = skb->dev ? skb->dev : skb_rtable(skb)->dst.dev;
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+		res = __ip_options_compile(dev_net(dev), &opt, skb, NULL);
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 		rcu_read_unlock();
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 		if (res)
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@@ -2058,6 +2060,7 @@
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 		int h = fib_multipath_hash(res->fi->fib_net, NULL, skb, hkeys);
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 		fib_select_multipath(res, h);
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+		IPCB(skb)->flags |= IPSKB_MULTIPATH;
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 	}
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 #endif
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