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| author | Eric Dumazet | 2013-10-26 02:26:17 +0200 |
|---|---|---|
| committer | David S. Miller | 2013-10-29 05:04:47 +0100 |
| commit | 0d08c42cf9a71530fef5ebcfe368f38f2dd0476f (patch) | |
| tree | d806d557fb1411add3dddbe6e59ff580afb7e05b /drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | |
| parent | pkt_sched: fq: clear time_next_packet for reused flows (diff) | |
| download | kernel-qcow2-linux-0d08c42cf9a71530fef5ebcfe368f38f2dd0476f.tar.gz kernel-qcow2-linux-0d08c42cf9a71530fef5ebcfe368f38f2dd0476f.tar.xz kernel-qcow2-linux-0d08c42cf9a71530fef5ebcfe368f38f2dd0476f.zip | |
tcp: gso: fix truesize tracking
commit 6ff50cd55545 ("tcp: gso: do not generate out of order packets")
had an heuristic that can trigger a warning in skb_try_coalesce(),
because skb->truesize of the gso segments were exactly set to mss.
This breaks the requirement that
skb->truesize >= skb->len + truesizeof(struct sk_buff);
It can trivially be reproduced by :
ifconfig lo mtu 1500
ethtool -K lo tso off
netperf
As the skbs are looped into the TCP networking stack, skb_try_coalesce()
warns us of these skb under-estimating their truesize.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c')
0 files changed, 0 insertions, 0 deletions