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Davide Caratti add641e7de sched: act_csum: don't mangle TCP and UDP GSO packets 
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 <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-03-23 17:40:33 -07:00
..
6lowpan
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9p Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-03-03 21:44:35 -08:00
802
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8021q net/8021q: create device with all possible features in wanted_features 2017-03-21 15:26:26 -07:00
appletalk lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
atm neighbour: fix nlmsg_pid in notifications 2017-03-22 10:48:49 -07:00
ax25 net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
batman-adv Here are two batman-adv bugfixes: 2017-03-16 12:05:38 -07:00
bluetooth net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
caif sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
can
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ceph libceph: osd_request_timeout option 2017-03-07 14:30:38 +01:00
core Add a eBPF helper function to retrieve socket uid 2017-03-23 17:01:02 -07:00
dcb
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dccp dccp: fix memory leak during tear-down of unsuccessful connection request 2017-03-13 22:00:42 -07:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-15 11:59:10 -07:00
dns_resolver Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-03 10:16:38 -08:00
dsa net: dsa: check out-of-range ageing time value 2017-03-15 15:34:13 -07:00
ethernet Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2017-02-16 21:25:49 -05:00
hsr net/hsr: use eth_hw_addr_random() 2017-02-21 13:25:22 -05:00
ieee802154 lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
ife
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ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
ipx
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irda net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
iucv net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
kcm sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
key
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l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-02-28 10:00:39 -08:00
l3mdev
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lapb
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llc net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
mac802154 sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h> 2017-03-02 08:42:38 +01:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
ncsi
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netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
netlabel
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netlink genetlink: fix counting regression on ctrl_dumpfamily() 2017-03-22 15:38:43 -07:00
netrom net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
nfc net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
packet net: don't call strlen() on the user buffer in packet_bind_spkt() 2017-03-01 20:55:57 -08:00
phonet net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
psample
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qrtr
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rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-15 11:59:10 -07:00
rfkill
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rose net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
rxrpc rxrpc: Ignore BUSY packets on old calls 2017-03-16 21:27:57 -07:00
sched sched: act_csum: don't mangle TCP and UDP GSO packets 2017-03-23 17:40:33 -07:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
smc net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
strparser strparser: destroy workqueue on module exit 2017-03-03 20:43:26 -08:00
sunrpc NFS client fixes for 4.11 2017-03-17 14:16:22 -07:00
switchdev
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tipc tipc: fix nametbl deadlock at tipc_nametbl_unsubscribe 2017-03-22 11:59:16 -07:00
unix net: unix: properly re-increment inflight counter of GC discarded candidates 2017-03-21 15:25:10 -07:00
vmw_vsock vsock: cancel packets when failing to connect 2017-03-21 14:41:47 -07:00
wimax
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wireless nl80211: fix dumpit error path RTNL deadlocks 2017-03-16 10:30:03 +01:00
x25 net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2017-03-07 15:00:37 -08:00
Kconfig bpf: make jited programs visible in traces 2017-02-17 13:40:05 -05:00
Makefile
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compat.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-02-22 10:15:09 -08:00
socket.c tcp: mark skbs with SCM_TIMESTAMPING_OPT_STATS 2017-03-21 18:44:17 -07:00
sysctl_net.c
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