We cannot reliable calculate packet size on MSG_MORE corked sockets and thus cannot decide if they are going to be fragmented later on, so better not use CHECKSUM_PARTIAL in the first place.
Cc: Eric Dumazet <eduma...@google.com> Cc: Vlad Yasevich <vyasev...@gmail.com> Cc: Benjamin Coddington <bcodd...@redhat.com> Cc: Tom Herbert <t...@herbertland.com> Signed-off-by: Hannes Frederic Sowa <han...@stressinduktion.org> --- net/ipv4/ip_output.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 50e2973..0b02417 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -911,6 +911,7 @@ static int __ip_append_data(struct sock *sk, if (transhdrlen && length + fragheaderlen <= mtu && rt->dst.dev->features & NETIF_F_V4_CSUM && + !(flags & MSG_MORE) && !exthdrlen) csummode = CHECKSUM_PARTIAL; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html