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7a7a9bd7ac
linux/net
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Ilan Tayari 7a7a9bd7ac gso: Validate assumption of frag_list segementation 
Commit 07b26c9454 ("gso: Support partial splitting at the frag_list
pointer") assumes that all SKBs in a frag_list (except maybe the last
one) contain the same amount of GSO payload.

This assumption is not always correct, resulting in the following
warning message in the log:
    skb_segment: too many frags

For example, mlx5 driver in Striding RQ mode creates some RX SKBs with
one frag, and some with 2 frags.
After GRO, the frag_list SKBs end up having different amounts of payload.
If this frag_list SKB is then forwarded, the aforementioned assumption
is violated.

Validate the assumption, and fall back to software GSO if it not true.

Fixes: 07b26c9454 ("gso: Support partial splitting at the frag_list pointer")
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-17 15:31:29 -04:00
..
6lowpan 6lowpan: Don't set IFF_NO_QUEUE 2017-04-12 22:02:40 +02:00
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 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
8021q netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
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 This feature/cleanup patchset includes the following patches: 2017-04-06 14:37:50 -07:00
bluetooth bluetooth: Do not set IFF_POINTOPOINT 2017-04-12 22:02:41 +02:00
bpf bpf: introduce BPF_PROG_TEST_RUN command 2017-04-01 12:45:57 -07:00
bridge net: bridge: notify on hw fdb takeover 2017-04-17 13:45:34 -04:00
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 netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
ceph libceph: force GFP_NOIO for socket allocations 2017-03-23 12:03:36 +01:00
core gso: Validate assumption of frag_list segementation 2017-04-17 15:31:29 -04:00
dcb netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
dccp dccp: fix memory leak during tear-down of unsuccessful connection request 2017-03-13 22:00:42 -07:00
decnet netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
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: isolate legacy code 2017-04-17 11:03:17 -04:00
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 netlink: extended ACK reporting 2017-04-13 13:58:20 -04:00
ieee802154 netlink: pass extended ACK struct where available 2017-04-13 13:58:22 -04:00
ife net: Introduce ife encapsulation module 2017-02-03 15:16:45 -05:00
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-15 21:16:30 -04:00
ipv6 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2017-04-17 15:00:57 -04:00
ipx ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
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 kcm: remove a useless copy_from_user() 2017-04-17 13:28:48 -04:00
key xfrm: remove unused struct xfrm_mgr::id 2017-03-24 07:03:12 +01:00
l2tp l2tp: device MTU setup, tunnel socket needs a lock 2017-04-17 13:01:48 -04:00
l3mdev
lapb Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
llc net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
mac80211 mac80211: unconditionally start new netdev queues with iTXQ support 2017-03-29 14:20:40 +02:00
mac802154 drivers: add explicit interrupt.h includes 2017-03-30 11:05:34 -07:00
mpls netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
ncsi
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-15 21:16:30 -04:00
netlabel netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
netlink netlink: pass extended ACK struct where available 2017-04-13 13:58:22 -04:00
netrom net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
nfc netlink: pass extended ACK struct where available 2017-04-13 13:58:22 -04:00
openvswitch netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
packet net/packet: fix overflow in check for tp_reserve 2017-03-30 11:04:00 -07:00
phonet netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
psample net: Introduce psample, a new genetlink channel for packet sampling 2017-01-24 13:44:28 -05:00
qrtr netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
rds rds: tcp: canonical connection order for all paths with index > 0 2017-04-02 19:41:00 -07:00
rfkill rfkill: remove rfkill-regulator 2017-01-24 11:07:35 +01:00
rose net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
rxrpc rxrpc: Trace client call connection 2017-04-06 11:10:41 +01:00
sched Subject: net: allow configuring default qdisc 2017-04-17 13:23:06 -04:00
sctp sctp: get list_of_streams of strreset outreq earlier 2017-04-17 15:25:35 -04:00
smc net/smc: do not use IB_SEND_INLINE together with mapped data 2017-04-11 23:01:14 -04:00
strparser strparser: destroy workqueue on module exit 2017-03-03 20:43:26 -08:00
sunrpc The restriction of NFSv4 to TCP went overboard and also broke the 2017-04-01 10:43:37 -07:00
switchdev netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
tipc netlink: pass extended ACK struct where available 2017-04-13 13:58:22 -04:00
unix af_unix: Use designated initializers 2017-04-06 12:43:04 -07:00
vmw_vsock VSOCK: remove unnecessary ternary operator on return value 2017-03-30 11:07:08 -07:00
wimax
wireless netlink: pass extended ACK struct where available 2017-04-13 13:58:22 -04:00
x25 net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
xfrm netlink: pass extended ACK struct where available 2017-04-13 13:58:22 -04:00
compat.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-02-22 10:15:09 -08:00
Kconfig bpf: make jited programs visible in traces 2017-02-17 13:40:05 -05:00
Makefile bpf: introduce BPF_PROG_TEST_RUN command 2017-04-01 12:45:57 -07:00
socket.c l2tp: device MTU setup, tunnel socket needs a lock 2017-04-17 13:01:48 -04:00
sysctl_net.c