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When the peer of an RDS-TCP connection restarts, a reconnect
attempt should only be made from the active side of the TCP
connection, i.e. the side that has a transient TCP port
number. Do not add the passive side of the TCP connection
to the c_hash_node and thus avoid triggering rds_queue_reconnect()
for passive rds connections.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When running RDS over TCP, the active (client) side connects to the
listening ("passive") side at the RDS_TCP_PORT. After the connection
is established, if the client side reboots (potentially without even
sending a FIN) the server still has a TCP socket in the esablished
state. If the server-side now gets a new SYN comes from the client
with a different client port, TCP will create a new socket-pair, but
the RDS layer will incorrectly pull up the old rds_connection (which
is still associated with the stale t_sock and RDS socket state).
This patch corrects this behavior by having rds_tcp_accept_one()
always create a new connection for an incoming TCP SYN.
The rds and tcp state associated with the old socket-pair is cleaned
up via the rds_tcp_state_change() callback which would typically be
invoked in most cases when the client-TCP sends a FIN on TCP restart,
triggering a transition to CLOSE_WAIT state. In the rarer event of client
death without a FIN, TCP_KEEPALIVE probes on the socket will detect
the stale socket, and the TCP transition to CLOSE state will trigger
the RDS state cleanup.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If there are only IPv6 source specific default routes present, the
host gets -ENETUNREACH on e.g. connect() because ip6_dst_lookup_tail
calls ip6_route_output first, and given source address any, it fails,
and ip6_route_get_saddr is never called.
The change is to use the ip6_route_get_saddr, even if the initial
ip6_route_output fails, and then doing ip6_route_output _again_ after
we have appropriate source address available.
Note that this is '99% fix' to the problem; a correct fix would be to
do route lookups only within addrconf.c when picking a source address,
and never call ip6_route_output before source address has been
populated.
Signed-off-by: Markus Stenberg <markus.stenberg@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:
====================
Here are a couple of important Bluetooth & mac802154 fixes for 4.1:
- mac802154 fix for crypto algorithm allocation failure checking
- mac802154 wpan phy leak fix for error code path
- Fix for not calling Bluetooth shutdown() if interface is not up
Let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix memory leak introduced in commit a0840e2e165a ("IPVS: netns,
ip_vs_ctl local vars moved to ipvs struct."):
unreferenced object 0xffff88005785b800 (size 2048):
comm "(-localed)", pid 1434, jiffies 4294755650 (age 1421.089s)
hex dump (first 32 bytes):
bb 89 0b 83 ff ff ff ff b0 78 f0 4e 00 88 ff ff .........x.N....
04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8262ea8e>] kmemleak_alloc+0x4e/0xb0
[<ffffffff811fba74>] __kmalloc_track_caller+0x244/0x430
[<ffffffff811b88a0>] kmemdup+0x20/0x50
[<ffffffff823276b7>] ip_vs_control_net_init+0x1f7/0x510
[<ffffffff8231d630>] __ip_vs_init+0x100/0x250
[<ffffffff822363a1>] ops_init+0x41/0x190
[<ffffffff82236583>] setup_net+0x93/0x150
[<ffffffff82236cc2>] copy_net_ns+0x82/0x140
[<ffffffff810ab13d>] create_new_namespaces+0xfd/0x190
[<ffffffff810ab49a>] unshare_nsproxy_namespaces+0x5a/0xc0
[<ffffffff810833e3>] SyS_unshare+0x173/0x310
[<ffffffff8265cbd7>] system_call_fastpath+0x12/0x6f
[<ffffffffffffffff>] 0xffffffffffffffff
Fixes: a0840e2e165a ("IPVS: netns, ip_vs_ctl local vars moved to ipvs struct.")
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
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When a vif starts using a reserved channel context (during CSA, for example)
the required chandef was recalculated, however it was never applied.
This could result in using chanctx with narrower width than actually
required. Fix this by calling ieee80211_change_chanctx with the recalculated
chandef. This both changes the chanctx's width and recalcs min_def.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This was missed in the previous patch, add some documentation
for rate_ctrl_lock to avoid docbook warnings.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The GO_CONCURRENT regulatory definition can be extended to station
interfaces requesting to IR as part of TDLS off-channel operations.
Rename the GO_CONCURRENT flag to IR_CONCURRENT and allow the added
use-case.
Change internal users of GO_CONCURRENT to use the new definition.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If a P2P GO was allowed on a channel because of the GO concurrent
relaxation, i.e., another station interface was associated to an AP on
the same channel or the same UNII band, and the station interface
disconnected from the AP, allow the following use cases unless the
channel is marked as indoor only and the device is not operating in an
indoor environment:
1. Allow the P2P GO to stay on its current channel. The rationale behind
this is that if the channel or UNII band were allowed by the AP they
could still be used to continue the P2P GO operation, and avoid connection
breakage.
2. Allow another P2P GO to start on the same channel or another channel
that is in the same UNII band as the previous instantiated P2P GO.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Currently, a cipher scheme can advertise an arbitrarily long
sequence counter, but mac80211 only supports up to 16 bytes
and the initial value from userspace will be truncated.
Fix two things:
* don't allow the driver to register anything longer than
the 16 bytes that mac80211 reserves space for
* require userspace to specify a starting value with the
correct length (or none at all)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For ciphers not supported by mac80211, the function currently
doesn't return any PN data. Fix this by extending the driver's
get_key_seq() a little more to allow moving arbitrary PN data.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Extend the function to read the TKIP IV32/IV16 to read the IV/PN for
all ciphers in order to allow drivers with full hardware crypto to
properly support this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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I forgot to update tcp_westwood when changing get_info() behavior,
this patch should fix this.
Fixes: 64f40ff5bbdb ("tcp: prepare CC get_info() access from getsockopt()")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move to include/uapi/linux/mpls.h to be externally visibile.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace "ntohs(proto) >= ETH_P_802_3_MIN" w/ eth_proto_is_802_3(proto).
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace "ntohs(proto) >= ETH_P_802_3_MIN" w/ eth_proto_is_802_3(proto).
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace "ntohs(proto) >= ETH_P_802_3_MIN" w/ eth_proto_is_802_3(proto).
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This change does two things. First it fixes a sparse error for the fact
that the __be16 degrades to an integer. Since that is actually what I am
kind of doing I am simply working around that by forcing both sides of the
comparison to u16.
Also I realized on some compilers I was generating another instruction for
big endian systems such as PowerPC since it was masking the value before
doing the comparison. So to resolve that I have simply pulled the mask out
and wrapped it in an #ifndef __BIG_ENDIAN.
Lastly I pulled this all out into its own function. I notices there are
similar checks in a number of other places so this function can be reused
there to help reduce overhead in these paths as well.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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BR_GROUPFWD_RESTRICTED bitmask restricts users from setting values to
/sys/class/net/brX/bridge/group_fwd_mask that allow forwarding of
some IEEE 802.1D Table 7-10 Reserved addresses:
(MAC Control) 802.3 01-80-C2-00-00-01
(Link Aggregation) 802.3 01-80-C2-00-00-02
802.1AB LLDP 01-80-C2-00-00-0E
Change BR_GROUPFWD_RESTRICTED to allow to forward LLDP frames and document
group_fwd_mask.
e.g.
echo 16384 > /sys/class/net/brX/bridge/group_fwd_mask
allows to forward LLDP frames.
This may be needed for bridge setups used for network troubleshooting or
any other scenario where forwarding of LLDP frames is desired (e.g. bridge
connecting a virtual machine to real switch transmitting LLDP frames that
virtual machine needs to receive).
Tested on a simple bridge setup with two interfaces and host transmitting
LLDP frames on one side of this bridge (used lldpd). Setting group_fwd_mask
as described above lets LLDP frames traverse bridge.
Signed-off-by: Bernhard Thaler <bernhard.thaler@wvnet.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch allows a server application to get the TCP SYN headers for
its passive connections. This is useful if the server is doing
fingerprinting of clients based on SYN packet contents.
Two socket options are added: TCP_SAVE_SYN and TCP_SAVED_SYN.
The first is used on a socket to enable saving the SYN headers
for child connections. This can be set before or after the listen()
call.
The latter is used to retrieve the SYN headers for passive connections,
if the parent listener has enabled TCP_SAVE_SYN.
TCP_SAVED_SYN is read once, it frees the saved SYN headers.
The data returned in TCP_SAVED_SYN are network (IPv4/IPv6) and TCP
headers.
Original patch was written by Tom Herbert, I changed it to not hold
a full skb (and associated dst and conntracking reference).
We have used such patch for about 3 years at Google.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Tested-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No current (and planned, as far as I know) wifi devices support
encapsulation checksum offload, so remove the useless test here.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When LED triggers are compiled in, but not used, mac80211 will still
call them to update the status. This isn't really a problem for the
assoc and radio ones, but the TX/RX (and to a certain extend TPT)
ones can be called very frequently (for every packet.)
In order to avoid that when they're not used, track their activation
and call the corresponding trigger (and in the TPT case, account for
throughput) only when the trigger is actually used by an LED.
Additionally, make those trigger functions inlines since theyre only
used once in the remaining code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is just a code cleanup, make the LED trigger names const
as they're not expected to be modified by drivers.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Remove items that can be retrieved through nl80211. This also
removes two items (tx_packets and tx_bytes) where only the VO
counter was exposed since they are split up per AC but in the
debugfs file only the first AC was shown.
Also remove the useless "dev" file - the stations have long
been in a sub-directory of the netdev so there's no need for
that any more.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This counter is unsafe with concurrent TX and is only exposed
through debugfs and ethtool. Instead of trying to fix it just
remove it for now, if it's really needed then it should be
exposed through nl80211 and in a way that drivers that do the
fragmentation in the device could support it as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since these counters can only be read through debugfs, there's
very little point in maintaining them all the time. However,
even just making them depend on debugfs is pointless - they're
not normally used. Additionally a number of them aren't even
concurrency safe.
Move them under MAC80211_DEBUG_COUNTERS so they're normally
not even compiled in.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The debugfs statistics macros are pointlessly verbose, so change
that macro to just have a single argument. While at it, remove
the unused counters and rename rx_expand_skb_head2 to the better
rx_expand_skb_head_defrag.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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if hold_queue of old xfrm_policy is NULL, return directly, then not need to
run other codes, especially take the spin lock
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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xfrm_pol_hold will check its input with NULL
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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> net/core/skbuff.c:4108:13: sparse: incorrect type in assignment (different base types)
> net/ipv6/mcast_snoop.c:63 ipv6_mc_check_exthdrs() warn: unsigned 'offset' is never less than zero.
Introduced by 9afd85c9e4552b276e2f4cfefd622bdeeffbbf26
("net: Export IGMP/MLD message validation code")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
We have only a few fixes right now:
* a fix for an issue with hash collision handling in the
rhashtable conversion
* a merge issue - rhashtable removed default shrinking
just before mac80211 was converted, so enable it now
* remove an invalid WARN that can trigger with legitimate
userspace behaviour
* add a struct member missing from kernel-doc that caused
a lot of warnings
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2015-05-04
Here's the first bluetooth-next pull request for 4.2:
- Various fixes for at86rf230 driver
- ieee802154: trace events support for rdev->ops
- HCI UART driver refactoring
- New Realtek IDs added to btusb driver
- Off-by-one fix for rtl8723b in btusb driver
- Refactoring of btbcm driver for both UART & USB use
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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c0adf54a109 introduced new sparse warnings:
CHECK /home/dahern/kernels/linux.git/net/rds/ib_cm.c
net/rds/ib_cm.c:191:34: warning: incorrect type in initializer (different base types)
net/rds/ib_cm.c:191:34: expected unsigned long long [unsigned] [usertype] dp_ack_seq
net/rds/ib_cm.c:191:34: got restricted __be64 <noident>
net/rds/ib_cm.c:194:51: warning: cast to restricted __be64
The temporary variable for sequence number should have been declared as __be64
rather than u64. Make it so.
Signed-off-by: David Ahern <david.ahern@oracle.com>
Cc: shamir rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Once tipc_conn_new() returns NULL, the connection should be shut
down immediately, otherwise, oops may happen due to the NULL pointer.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently subscriber's lock protects not only subscriber's subscription
list but also all subscriptions linked into the list. However, as all
members of subscription are never changed after they are initialized,
it's unnecessary for subscription to be protected under subscriber's
lock. If the lock is used to only protect subscriber's subscription
list, the adjustment not only makes the locking policy simpler, but
also helps to avoid a deadlock which may happen once creating a
subscription is failed.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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At present subscriber's lock is used to protect the subscription list
of subscriber as well as subscriptions linked into the list. While one
or all subscriptions are deleted through iterating the list, the
subscriber's lock must be held. Meanwhile, as deletion of subscription
may happen in subscription timer's handler, the lock must be grabbed
in the function as well. When subscription's timer is terminated with
del_timer_sync() during above iteration, subscriber's lock has to be
temporarily released, otherwise, deadlock may occur. However, the
temporary release may cause the double free of a subscription as the
subscription is not disconnected from the subscription list.
Now if a reference counter is introduced to subscriber, subscription's
timer can be asynchronously stopped with del_timer(). As a result, the
issue is not only able to be fixed, but also relevant code is pretty
readable and understandable.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introducing a new function makes the purpose of tipc_subscrb_connect_cb
callback routine more clear.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a topology server accepts a connection request from its client,
it allocates a connection instance and a tipc_subscriber structure
object. The former is used to communicate with client, and the latter
is often treated as a subscriber which manages all subscription events
requested from a same client. When a topology server receives a request
of subscribing name services from a client through the connection, it
creates a tipc_subscription structure instance which is seen as a
subscription recording what name services are subscribed. In order to
manage all subscriptions from a same client, topology server links
them into the subscrp_list of the subscriber. So subscriber and
subscription completely represents different meanings respectively,
but function names associated with them make us so confused that we
are unable to easily tell which function is against subscriber and
which is to subscription. So we want to eliminate the confusion by
renaming them.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The code in __netdev_upper_dev_link() has an over-stringent
loop detection logic that actually prevents valid configurations
from working correctly.
In particular, the logic returns an error if an upper device
is already in the list of all upper devices for a given dev.
This particular check seems to be a overzealous as it disallows
perfectly valid configurations. For example:
# ip l a link eth0 name eth0.10 type vlan id 10
# ip l a dev br0 typ bridge
# ip l s eth0.10 master br0
# ip l s eth0 master br0 <--- Will fail
If you switch the last two commands (add eth0 first), then both
will succeed. If after that, you remove eth0 and try to re-add
it, it will fail!
It appears to be enough to simply check adj_list to keeps things
safe.
I've tried stacking multiple devices multiple times in all different
combinations, and either rx_handler registration prevented the stacking
of the device linking cought the error.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With this patch, the IGMP and MLD message validation functions are moved
from the bridge code to IPv4/IPv6 multicast files. Some small
refactoring was done to enhance readibility and to iron out some
differences in behaviour between the IGMP and MLD parsing code (e.g. the
skb-cloning of MLD messages is now only done if necessary, just like the
IGMP part always did).
Finally, these IGMP and MLD message validation functions are exported so
that not only the bridge can use it but batman-adv later, too.
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Let's use these new, neat helpers.
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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improves ingress+u32 performance from 22.4 Mpps to 22.9 Mpps
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Florian Westphal <fw@strlen.de>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In an environment where the KDC is running Active Directory, the
exported composite name field returned in the context could be large
enough to span a page boundary. Attaching a scratch buffer to the
decoding xdr_stream helps deal with those cases.
The case where we saw this was actually due to behavior that's been
fixed in newer gss-proxy versions, but we're fixing it here too.
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Simo Sorce <simo@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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This reverts commit c243d7e20996254f89c28d4838b5feca735c030d.
That patch is solving a non-existant problem while creating a
real problem. Just because a socket is allocated in the init
name space doesn't mean that it gets hashed in the init name space.
When we unhash it the name space must be the same as the one
we had when we hashed it. So this patch is completely bogus
and causes socket leaks.
Reported-by: Andrey Wagin <avagin@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Call make_flow_keys_digest to get a digest from flow keys and
use that to pass skbuff cb and for comparing flows.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some users of flow keys (well just sch_choke now) need to pass
flow_keys in skbuff cb, and use them for exact comparisons of flows
so that skb->hash is not sufficient. In order to increase size of
the flow_keys structure, we introduce another structure for
the purpose of passing flow keys in skbuff cb. We limit this structure
to sixteen bytes, and we will technically treat this as a digest of
flow_keys struct hence its name flow_keys_digest. In the first
incaranation we just copy the flow_keys structure up to 16 bytes--
this is the same information previously passed in the cb. In the
future, we'll adapt this for larger flow_keys and could use something
like SHA-1 over the whole flow_keys to improve the quality of the
digest.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Call skb_get_hash_perturb instead of doing skb_flow_dissect and then
jhash by hand.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Call skb_get_hash_perturb instead of doing skb_flow_dissect and then
jhash by hand.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Call skb_get_hash_perturb instead of doing skb_flow_dissect and then
jhash by hand.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Call skb_get_hash_perturb instead of doing skb_flow_dissect and then
jhash by hand.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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