From: Davide Caratti <dcara...@redhat.com> Date: Thu, 23 Mar 2017 10:39:40 +0100
> after act_csum computes the checksum on skbs carrying GSO TCP/UDP packets, > subsequent segmentation fails because skb_needs_check(skb, true) returns > true. Because of that, skb_warn_bad_offload() is invoked and the following > message is displayed: > > WARNING: CPU: 3 PID: 28 at net/core/dev.c:2553 skb_warn_bad_offload+0xf0/0xfd > <...> > > [<ffffffff8171f486>] skb_warn_bad_offload+0xf0/0xfd > [<ffffffff8161304c>] __skb_gso_segment+0xec/0x110 > [<ffffffff8161340d>] validate_xmit_skb+0x12d/0x2b0 > [<ffffffff816135d2>] validate_xmit_skb_list+0x42/0x70 > [<ffffffff8163c560>] sch_direct_xmit+0xd0/0x1b0 > [<ffffffff8163c760>] __qdisc_run+0x120/0x270 > [<ffffffff81613b3d>] __dev_queue_xmit+0x23d/0x690 > [<ffffffff81613fa0>] dev_queue_xmit+0x10/0x20 > > Since GSO is able to compute checksum on individual segments of such skbs, > we can simply skip mangling the packet. > > Signed-off-by: Davide Caratti <dcara...@redhat.com> Seems reasonable, applied, thanks.
