From: Eric Dumazet Date: Fri, 24 Aug 2012 01:47:26 +0000 (+0000) Subject: netpoll: provide an IP ident in UDP frames X-Git-Tag: upstream/snapshot3+hdmi~6565^2~274 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ee13040901c11b016d996ab5a946acaaa3461737;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git 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: Eric Dumazet Signed-off-by: David S. Miller --- diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 346b1eb..5af9c26 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -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;