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Commit ee130409 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
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netpoll: provide an IP ident in UDP frames



Let's fill IP header ident field with a meaningful value,
it might help some setups.

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6549dd43
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+2 −1
Original line number Diff line number Diff line
@@ -388,6 +388,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
	struct udphdr *udph;
	struct iphdr *iph;
	struct ethhdr *eth;
	static atomic_t ip_ident;

	udp_len = len + sizeof(*udph);
	ip_len = udp_len + sizeof(*iph);
@@ -423,7 +424,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
	put_unaligned(0x45, (unsigned char *)iph);
	iph->tos      = 0;
	put_unaligned(htons(ip_len), &(iph->tot_len));
	iph->id       = 0;
	iph->id       = htons(atomic_inc_return(&ip_ident));
	iph->frag_off = 0;
	iph->ttl      = 64;
	iph->protocol = IPPROTO_UDP;