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Pablo Neira Ayuso says:
====================
Netfilter/IPVS updates for net-next
The following patchset contains Netfilter/IPVS updates for net-next:
1) Move bridge keys in nft_meta to nft_meta_bridge, from wenxu.
2) Support for bridge pvid matching, from wenxu.
3) Support for bridge vlan protocol matching, also from wenxu.
4) Add br_vlan_get_pvid_rcu(), to fetch the bridge port pvid
from packet path.
5) Prefer specific family extension in nf_tables.
6) Autoload specific family extension in case it is missing.
7) Add synproxy support to nf_tables, from Fernando Fernandez Mancera.
8) Support for GRE encapsulation in IPVS, from Vadim Fedorenko.
9) ICMP handling for GRE encapsulation, from Julian Anastasov.
10) Remove unused parameter in nf_queue, from Florian Westphal.
11) Replace seq_printf() by seq_puts() in nf_log, from Markus Elfring.
12) Rename nf_SYNPROXY.h => nf_synproxy.h before this header becomes
public.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
nft_meta needs to pull in the nft_meta_bridge module in case that this
is a bridge family rule from the select_ops() path.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Separate bridge meta key from nft_meta to meta_bridge to avoid a
dependency between the bridge module and nft_meta when using the bridge
API available through include/linux/if_bridge.h
Signed-off-by: wenxu <wenxu@ucloud.cn>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Recognize GRE tunnels in received ICMP errors and
properly strip the tunnel headers.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Add synproxy support for nf_tables. This behaves like the iptables
synproxy target but it is structured in a way that allows us to propose
improvements in the future.
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
windows real servers can handle gre tunnels, this patch allows
gre encapsulation with the tunneling method, thereby letting ipvs
be load balancer for windows-based services
Signed-off-by: Vadim Fedorenko <vfedorenko@yandex-team.ru>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
A string which did not contain a data format specification should be put
into a sequence. Thus use the corresponding function “seq_puts”.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Uppercase is a reminiscence from the iptables infrastructure, rename
this header before this is included in stable kernels.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter did not expect that skb_dst_force() can cause skb to lose its
dst entry.
I got a bug report with a skb->dst NULL dereference in netfilter
output path. The backtrace contains nf_reinject(), so the dst might have
been cleared when skb got queued to userspace.
Other users were fixed via
if (skb_dst(skb)) {
skb_dst_force(skb);
if (!skb_dst(skb))
goto handle_err;
}
But I think its preferable to make the 'dst might be cleared' part
of the function explicit.
In netfilter case, skb with a null dst is expected when queueing in
prerouting hook, so drop skb for the other hooks.
v2:
v1 of this patch returned true in case skb had no dst entry.
Eric said:
Say if we have two skb_dst_force() calls for some reason
on the same skb, only the first one will return false.
This now returns false even when skb had no dst, as per Erics
suggestion, so callers might need to check skb_dst() first before
skb_dst_force().
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix memleak reported by syzkaller when registering IPVS hooks,
patch from Julian Anastasov.
2) Fix memory leak in start_sync_thread, also from Julian.
3) Fix conntrack deletion via ctnetlink, from Felix Kaechele.
4) Fix reject for ICMP due to incorrect checksum handling, from
He Zhe.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Since v5.1-rc1, some types of packets do not get unreachable reply with the
following iptables setting. Fox example,
$ iptables -A INPUT -p icmp --icmp-type 8 -j REJECT
$ ping 127.0.0.1 -c 1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
— 127.0.0.1 ping statistics —
1 packets transmitted, 0 received, 100% packet loss, time 0ms
We should have got the following reply from command line, but we did not.
From 127.0.0.1 icmp_seq=1 Destination Port Unreachable
Yi Zhao reported it and narrowed it down to:
7fc38225363d ("netfilter: reject: skip csum verification for protocols that don't support it"),
This is because nf_ip_checksum still expects pseudo-header protocol type 0 for
packets that are of neither TCP or UDP, and thus ICMP packets are mistakenly
treated as TCP/UDP.
This patch corrects the conditions in nf_ip_checksum and all other places that
still call it with protocol 0.
Fixes: 7fc38225363d ("netfilter: reject: skip csum verification for protocols that don't support it")
Reported-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The new route handling in ip_mc_finish_output() from 'net' overlapped
with the new support for returning congestion notifications from BPF
programs.
In order to handle this I had to take the dev_loopback_xmit() calls
out of the switch statement.
The aquantia driver conflicts were simple overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no functional change in this patch, it only prepares the next one.
rt6_nexthop() will be used by ip6_dst_lookup_neigh(), which uses const
variables.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit f8e608982022 ("netfilter: ctnetlink: Resolve conntrack
L3-protocol flush regression") introduced a regression in which deletion
of conntrack entries would fail because the L3 protocol information
is replaced by AF_UNSPEC. As a result the search for the entry to be
deleted would turn up empty due to the tuple used to perform the search
is now different from the tuple used to initially set up the entry.
For flushing the conntrack table we do however want to keep the option
for nfgenmsg->version to have a non-zero value to allow for newer
user-space tools to request treatment under the new behavior. With that
it is possible to independently flush tables for a defined L3 protocol.
This was introduced with the enhancements in in commit 59c08c69c278
("netfilter: ctnetlink: Support L3 protocol-filter on flush").
Older user-space tools will retain the behavior of flushing all tables
regardless of defined L3 protocol.
Fixes: f8e608982022 ("netfilter: ctnetlink: Resolve conntrack L3-protocol flush regression")
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Felix Kaechele <felix@kaechele.ca>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Resolve conflict between d2912cb15bdd ("treewide: Replace GPLv2
boilerplate/reference with SPDX - rule 500") removing the GPL disclaimer
and fe03d4745675 ("Update my email address") which updates Jozsef
Kadlecsik's email.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pull networking fixes from David Miller:
1) Fix leak of unqueued fragments in ipv6 nf_defrag, from Guillaume
Nault.
2) Don't access the DDM interface unless the transceiver implements it
in bnx2x, from Mauro S. M. Rodrigues.
3) Don't double fetch 'len' from userspace in sock_getsockopt(), from
JingYi Hou.
4) Sign extension overflow in lio_core, from Colin Ian King.
5) Various netem bug fixes wrt. corrupted packets from Jakub Kicinski.
6) Fix epollout hang in hvsock, from Sunil Muthuswamy.
7) Fix regression in default fib6_type, from David Ahern.
8) Handle memory limits in tcp_fragment more appropriately, from Eric
Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (24 commits)
tcp: refine memory limit test in tcp_fragment()
inet: clear num_timeout reqsk_alloc()
net: mvpp2: debugfs: Add pmap to fs dump
ipv6: Default fib6_type to RTN_UNICAST when not set
net: hns3: Fix inconsistent indenting
net/af_iucv: always register net_device notifier
net/af_iucv: build proper skbs for HiperTransport
net/af_iucv: remove GFP_DMA restriction for HiperTransport
net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()
hvsock: fix epollout hang from race condition
net/udp_gso: Allow TX timestamp with UDP GSO
net: netem: fix use after free and double free with packet corruption
net: netem: fix backlog accounting for corrupted GSO frames
net: lio_core: fix potential sign-extension overflow on large shift
tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb
ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
tun: wake up waitqueues after IFF_UP is set
net: remove duplicate fetch in sock_getsockopt
tipc: fix issues with early FAILOVER_MSG from peer
...
This is the kernel change for the overall changes with this description:
Add capability to have rules matching IPv4 options. This is developed
mainly to support dropping of IP packets with loose and/or strict source
route route options.
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This helper function is never used and it is intended to avoid a direct
dependency with the ipv6 module.
Fixes: d7f9b2f18eae ("netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Currently, the expiration of every element in a set or map
is a read-only parameter generated at kernel side.
This change will permit to set a certain expiration date
per element that will be required, for example, during
stateful replication among several nodes.
This patch handles the NFTA_SET_ELEM_EXPIRATION in order
to configure the expiration parameter per element, or
will use the timeout in the case that the expiration
is not set.
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
nf_ct_helper_ext_add may return null, which must then be checked.
Fixes: 857b46027d6f ("netfilter: nft_ct: add ct expectations support")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Stéphane Veyret <sveyret@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Currently functions nf_synproxy_{ipc4|ipv6}_init return an uninitialized
garbage value in variable ret on a successful return. Fix this by
returning zero on success.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: d7f9b2f18eae ("netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this source code is licensed under general public license version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081204.871734026@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this source code is licensed under the gnu general public license
version 2 see the file copying for more details
this source code is licensed under general public license version 2
see
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 52 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.449021192@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Module autoload for masquerade and redirection does not work.
2) Leak in unqueued packets in nf_ct_frag6_queue(). Ignore duplicated
fragments, pretend they are placed into the queue. Patches from
Guillaume Nault.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add common functions into nf_synproxy_core.c to prepare for nftables support.
The prototypes of the functions used by {ipt, ip6t}_SYNPROXY are in the new
file nf_synproxy.h
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Jozsef Kadlecsik says:
====================
ipset patches for nf-next
- Remove useless memset() calls, nla_parse_nested/nla_parse
erase the tb array properly, from Florent Fourcot.
- Merge the uadd and udel functions, the code is nicer
this way, also from Florent Fourcot.
- Add a missing check for the return value of a
nla_parse[_deprecated] call, from Aditya Pakki.
- Add the last missing check for the return value
of nla_parse[_deprecated] call.
- Fix error path and release the references properly
in set_target_v3_checkentry().
- Fix memory accounting which is reported to userspace
for hash types on resize, from Stefano Brivio.
- Update my email address to kadlec@netfilter.org.
The patch covers all places in the source tree where
my kadlec@blackhole.kfki.hu address could be found.
====================
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
____nf_conntrack_find() performs checks on the conntrack objects in
this order:
1. if (nf_ct_is_expired(ct))
This fetches ct->timeout, in third cache line.
The hnnode that is used to store the list pointers resides in the first
(origin) or second (reply tuple) cache lines.
This test rarely passes, but its necessary to reap obsolete entries.
2. if (nf_ct_is_dying(ct))
This fetches ct->status, also in third cache line.
The test is useless, and can be removed:
Consider:
cpu0 cpu1
ct = ____nf_conntrack_find()
atomic_inc_not_zero(ct) -> ok
nf_ct_key_equal -> ok
is_dying -> DYING bit not set, ok
set_bit(ct, DYING);
... unhash ... etc.
return ct
-> returning a ct with dying bit set, despite
having a test for it.
This (unlikely) case is fine - refcount prevents ct from getting free'd.
3. if (nf_ct_key_equal(h, tuple, zone, net))
nf_ct_key_equal checks in following order:
1. Tuple equal (first or second cacheline)
2. Zone equal (third cacheline)
3. confirmed bit set (->status, third cacheline)
4. net namespace match (third cacheline).
Swapping "timeout" and "cpu" places timeout in the first cacheline.
This has two advantages:
1. For a conntrack that won't even match the original tuple,
we will now only fetch the first and maybe the second cacheline
instead of always accessing the 3rd one as well.
2. in case of TCP ct->timeout changes frequently because we
reduce/increase it when there are packets outstanding in the network.
The first cacheline contains both the reference count and the ct spinlock,
i.e. moving timeout there avoids writes to 3rd cacheline.
The restart sequence in __nf_conntrack_find() is removed, if we found a
candidate, but then fail to increment the refcount or discover the tuple
has changed (object recycling), just pretend we did not find an entry.
A second lookup won't find anything until another CPU adds a new conntrack
with identical tuple into the hash table, which is very unlikely.
We have the confirmation-time checks (when we hold hash lock) that deal
with identical entries and even perform clash resolution in some cases.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This patch allows to add, list and delete expectations via nft objref
infrastructure and assigning these expectations via nft rule.
This allows manual port triggering when no helper is defined to manage a
specific protocol. For example, if I have an online game which protocol
is based on initial connection to TCP port 9753 of the server, and where
the server opens a connection to port 9876, I can set rules as follow:
table ip filter {
ct expectation mygame {
protocol udp;
dport 9876;
timeout 2m;
size 1;
}
chain input {
type filter hook input priority 0; policy drop;
tcp dport 9753 ct expectation set "mygame";
}
chain output {
type filter hook output priority 0; policy drop;
udp dport 9876 ct status expected accept;
}
}
Signed-off-by: Stéphane Veyret <sveyret@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
It's better to use my kadlec@netfilter.org email address in
the source code. I might not be able to use
kadlec@blackhole.kfki.hu in the future.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
If a fresh array block is allocated during resize, the current in-memory
set size should be increased by the size of the block, not replaced by it.
Before the fix, adding entries to a hash set type, leading to a table
resize, caused an inconsistent memory size to be reported. This becomes
more obvious when swapping sets with similar sizes:
# cat hash_ip_size.sh
#!/bin/sh
FAIL_RETRIES=10
tries=0
while [ ${tries} -lt ${FAIL_RETRIES} ]; do
ipset create t1 hash:ip
for i in `seq 1 4345`; do
ipset add t1 1.2.$((i / 255)).$((i % 255))
done
t1_init="$(ipset list t1|sed -n 's/Size in memory: \(.*\)/\1/p')"
ipset create t2 hash:ip
for i in `seq 1 4360`; do
ipset add t2 1.2.$((i / 255)).$((i % 255))
done
t2_init="$(ipset list t2|sed -n 's/Size in memory: \(.*\)/\1/p')"
ipset swap t1 t2
t1_swap="$(ipset list t1|sed -n 's/Size in memory: \(.*\)/\1/p')"
t2_swap="$(ipset list t2|sed -n 's/Size in memory: \(.*\)/\1/p')"
ipset destroy t1
ipset destroy t2
tries=$((tries + 1))
if [ ${t1_init} -lt 10000 ] || [ ${t2_init} -lt 10000 ]; then
echo "FAIL after ${tries} tries:"
echo "T1 size ${t1_init}, after swap ${t1_swap}"
echo "T2 size ${t2_init}, after swap ${t2_swap}"
exit 1
fi
done
echo "PASS"
# echo -n 'func hash_ip4_resize +p' > /sys/kernel/debug/dynamic_debug/control
# ./hash_ip_size.sh
[ 2035.018673] attempt to resize set t1 from 10 to 11, t 00000000fe6551fa
[ 2035.078583] set t1 resized from 10 (00000000fe6551fa) to 11 (00000000172a0163)
[ 2035.080353] Table destroy by resize 00000000fe6551fa
FAIL after 4 tries:
T1 size 9064, after swap 71128
T2 size 71128, after swap 9064
Reported-by: NOYB <JunkYardMail1@Frontier.com>
Fixes: 9e41f26a505c ("netfilter: ipset: Count non-static extension memory for userspace")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
In dump_init() the outdated comment was incorrect and we had a missing
validation check of nla_parse_deprecated().
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
When nla_parse fails, we should not use the results (the first
argument). The fix checks if it fails, and if so, returns its error code
upstream.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Both functions are using exactly the same code, except the command value
passed to call_ad function.
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
One of the memset call is buggy: it does not erase full array, but only pointer size.
Moreover, after a check, first step of nla_parse_nested/nla_parse is to
erase tb array as well. We can remove both calls safely.
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Some ISDN files that got removed in net-next had some changes
done in mainline, take the removals.
Signed-off-by: David S. Miller <davem@davemloft.net>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 101 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 51 franklin st fifth floor boston ma 02110
1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 246 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ifa_list is protected by rcu, yet code doesn't reflect this.
Add the __rcu annotations and fix up all places that are now reported by
sparse.
I've done this in the same commit to not add intermediate patches that
result in new warnings.
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Netfilter hooks are always running under rcu read lock, use
the new iterator macro so sparse won't complain once we add
proper __rcu annotations.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
