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2011-12-16net:netfilter: use IS_ENABLEDIgor Maravić
Use IS_ENABLED(CONFIG_FOO) instead of defined(CONFIG_FOO) || defined (CONFIG_FOO_MODULE) Signed-off-by: Igor Maravić <igorm@etf.rs> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16net:x25: use IS_ENABLEDIgor Maravić
Use IS_ENABLED(CONFIG_FOO) instead of defined(CONFIG_FOO) || defined (CONFIG_FOO_MODULE) Signed-off-by: Igor Maravić <igorm@etf.rs> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16net:core: use IS_ENABLEDIgor Maravić
Use IS_ENABLED(CONFIG_FOO) instead of defined(CONFIG_FOO) || defined (CONFIG_FOO_MODULE) Signed-off-by: Igor Maravić <igorm@etf.rs> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16sch_gred: prefer GFP_KERNEL allocationsEric Dumazet
In control path, its better to use GFP_KERNEL allocations where possible. Before taking qdisc spinlock, we preallocate memory just in case we'll need it in gred_change_vq() This is a followup to commit 3f1e6d3fd37b (sch_gred: should not use GFP_KERNEL while holding a spinlock) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16net: fix sleeping while atomic problem in sock mem_cgroup.Glauber Costa
We can't scan the proto_list to initialize sock cgroups, as it holds a rwlock, and we also want to keep the code generic enough to avoid calling the initialization functions of protocols directly, Convert proto_list_lock into a mutex, so we can sleep and do the necessary allocations. This lock is seldom taken, so there shouldn't be any performance penalties associated with that Signed-off-by: Glauber Costa <glommer@parallels.com> CC: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Rothwell <sfr@canb.auug.org.au> CC: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16batman-adv: Fix merge error.David S. Miller
I didn't resolve the merge properly during the last pull of the net tree into net-next. The code in the final resolution should set flags to TT_CLIENT_ROAM not TT_CLIENT_PENDING. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16ethtool: Define and apply a default policy for RX flow hash indirectionBen Hutchings
All drivers that support modification of the RX flow hash indirection table initialise it in the same way: RX rings are assigned to table entries in rotation. Make that default policy explicit by having them call a ethtool_rxfh_indir_default() function. In the ethtool core, add support for a zero size value for ETHTOOL_SRXFHINDIR, which resets the table to this default. Partly-suggested-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Shreyas N Bhatewara <sbhatewara@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16ethtool: Centralise validation of ETHTOOL_{G, S}RXFHINDIR parametersBen Hutchings
Add a new ethtool operation (get_rxfh_indir_size) to get the indirectional table size. Use this to validate the user buffer size before calling get_rxfh_indir or set_rxfh_indir. Use get_rxnfc to get the number of RX rings, and validate the contents of the new indirection table before calling set_rxfh_indir. Remove this validation from drivers. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Write it into kbuildPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Receive queue lenght NLAPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Pending connections IDs NLAPavel Emelyanov
When establishing a unix connection on stream sockets the server end receives an skb with socket in its receive queue. Report who is waiting for these ends to be accepted for listening sockets via NLA. There's a lokcing issue with this -- the unix sk state lock is required to access the peer, and it is taken under the listening sk's queue lock. Strictly speaking the queue lock should be taken inside the state lock, but since in this case these two sockets are different it shouldn't lead to deadlock. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Unix peer inode NLAPavel Emelyanov
Report the peer socket inode ID as NLA. With this it's finally possible to find out the other end of an interesting unix connection. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Unix inode info NLAPavel Emelyanov
Actually, the socket path if it's not anonymous doesn't give a clue to which file the socket is bound to. Even if the path is absolute, it can be unlinked and then new socket can be bound to it. With this NLA it's possible to check which file a particular socket is really bound to. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Unix socket name NLAPavel Emelyanov
Report the sun_path when requested as NLA. With leading '\0' if present but without the leading AF_UNIX bits. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Dumping exact socket corePavel Emelyanov
The socket inode is used as a key for lookup. This is effectively the only really unique ID of a unix socket, but using this for search currently has one problem -- it is O(number of sockets) :( Does it worth fixing this lookup or inventing some other ID for unix sockets? Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Dumping all sockets corePavel Emelyanov
Walk the unix sockets table and fill the core response structure, which includes type, state and inode. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16unix_diag: Basic module skeletonPavel Emelyanov
Includes basic module_init/_exit functionality, dump/get_exact stubs and declares the basic API structures for request and response. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16af_unix: Export stuff required for diag modulePavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16sock_diag: Generalize requests cookies managementsPavel Emelyanov
The sk address is used as a cookie between dump/get_exact calls. It will be required for unix socket sdumping, so move it from inet_diag to sock_diag. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16sock_diag: Fix module netlink aliasesPavel Emelyanov
I've made a mistake when fixing the sock_/inet_diag aliases :( 1. The sock_diag layer should request the family-based alias, not just the IPPROTO_IP one; 2. The inet_diag layer should request for AF_INET+protocol alias, not just the protocol one. Thus fix this. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/freescale/fsl_pq_mdio.c net/batman-adv/translation-table.c net/ipv6/route.c
2011-12-15tcp_memcontrol: fix reversed if conditionDan Carpenter
We should only dereference the pointer if it's valid, not the other way round. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-14net: ping: remove some sparse errorsEric Dumazet
net/ipv4/sysctl_net_ipv4.c:78:6: warning: symbol 'inet_get_ping_group_range_table' was not declared. Should it be static? net/ipv4/sysctl_net_ipv4.c:119:31: warning: incorrect type in argument 2 (different signedness) net/ipv4/sysctl_net_ipv4.c:119:31: expected int *range net/ipv4/sysctl_net_ipv4.c:119:31: got unsigned int *<noident> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-14cls_flow: remove one dynamic arrayEric Dumazet
Its better to use a predefined size for this small automatic variable. Removes a sparse error as well : net/sched/cls_flow.c:288:13: error: bad constant expression Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-14vlan: static functionsEric Dumazet
commit 6d4cdf47d2 (vlan: add 802.1q netpoll support) forgot to declare as static some private functions. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-14vlan: add rtnl_dereference() annotationsDan Carpenter
The original code generates a Sparse warning: net/8021q/vlan_core.c:336:9: error: incompatible types in comparison expression (different address spaces) It's ok to dereference __rcu pointers here because we are holding the RTNL lock. I've added some calls to rtnl_dereference() to silence the warning. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-14rtnetlink: rtnl_link_register() sanity testEric Dumazet
Before adding a struct rtnl_link_ops into link_ops list, check it doesnt clash with a prior one. Based on a previous patch from Alexander Smirnov Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13ipv6: Check dest prefix length on original route not copied one in ↵David S. Miller
rt6_alloc_cow(). After commit 8e2ec639173f325977818c45011ee176ef2b11f6 ("ipv6: don't use inetpeer to store metrics for routes.") the test in rt6_alloc_cow() for setting the ANYCAST flag is now wrong. 'rt' will always now have a plen of 128, because it is set explicitly to 128 by ip6_rt_copy. So to restore the semantics of the test, check the destination prefix length of 'ort'. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13ipv6: If neigh lookup fails during icmp6 dst allocation, propagate error.David S. Miller
Don't just succeed with a route that has a NULL neighbour attached. This follows the behavior of addrconf_dst_alloc(). Allowing this kind of route to end up with a NULL neigh attached will result in packet drops on output until the route is somehow invalidated, since nothing will meanwhile try to lookup the neigh again. A statistic is bumped for the case where we see a neigh-less route on output, but the resulting packet drop is otherwise silent in nature, and frankly it's a hard error for this to happen and ipv6 should do what ipv4 does which is say something in the kernel logs. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13net: Remove unused neighbour layer ops.David S. Miller
It's simpler to just keep these things out until there is a real user of them, so we can see what the needs actually are, rather than keep these things around as useless overhead. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12netem: add cell concept to simulate special MAC behaviorHagen Paul Pfeifer
This extension can be used to simulate special link layer characteristics. Simulate because packet data is not modified, only the calculation base is changed to delay a packet based on the original packet size and artificial cell information. packet_overhead can be used to simulate a link layer header compression scheme (e.g. set packet_overhead to -20) or with a positive packet_overhead value an additional MAC header can be simulated. It is also possible to "replace" the 14 byte Ethernet header with something else. cell_size and cell_overhead can be used to simulate link layer schemes, based on cells, like some TDMA schemes. Another application area are MAC schemes using a link layer fragmentation with a (small) header each. Cell size is the maximum amount of data bytes within one cell. Cell overhead is an additional variable to change the per-cell-overhead (e.g. 5 byte header per fragment). Example (5 kbit/s, 20 byte per packet overhead, cell-size 100 byte, per cell overhead 5 byte): tc qdisc add dev eth0 root netem rate 5kbit 20 100 5 Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12Merge branch 'batman-adv/next' of git://git.open-mesh.org/linux-mergeDavid S. Miller
2011-12-12sch_gred: should not use GFP_KERNEL while holding a spinlockEric Dumazet
gred_change_vq() is called under sch_tree_lock(sch). This means a spinlock is held, and we are not allowed to sleep in this context. We might pre-allocate memory using GFP_KERNEL before taking spinlock, but this is not suitable for stable material. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12Display maximum tcp memory allocation in kmem cgroupGlauber Costa
This patch introduces kmem.tcp.max_usage_in_bytes file, living in the kmem_cgroup filesystem. The root cgroup will display a value equal to RESOURCE_MAX. This is to avoid introducing any locking schemes in the network paths when cgroups are not being actively used. All others, will see the maximum memory ever used by this cgroup. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12Display current tcp failcnt in kmem cgroupGlauber Costa
This patch introduces kmem.tcp.failcnt file, living in the kmem_cgroup filesystem. Following the pattern in the other memcg resources, this files keeps a counter of how many times allocation failed due to limits being hit in this cgroup. The root cgroup will always show a failcnt of 0. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12Display current tcp memory allocation in kmem cgroupGlauber Costa
This patch introduces kmem.tcp.usage_in_bytes file, living in the kmem_cgroup filesystem. It is a simple read-only file that displays the amount of kernel memory currently consumed by the cgroup. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12tcp buffer limitation: per-cgroup limitGlauber Costa
This patch uses the "tcp.limit_in_bytes" field of the kmem_cgroup to effectively control the amount of kernel memory pinned by a cgroup. This value is ignored in the root cgroup, and in all others, caps the value specified by the admin in the net namespaces' view of tcp_sysctl_mem. If namespaces are being used, the admin is allowed to set a value bigger than cgroup's maximum, the same way it is allowed to set pretty much unlimited values in a real box. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12per-netns ipv4 sysctl_tcp_memGlauber Costa
This patch allows each namespace to independently set up its levels for tcp memory pressure thresholds. This patch alone does not buy much: we need to make this values per group of process somehow. This is achieved in the patches that follows in this patchset. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12tcp memory pressure controlsGlauber Costa
This patch introduces memory pressure controls for the tcp protocol. It uses the generic socket memory pressure code introduced in earlier patches, and fills in the necessary data in cg_proto struct. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtisu.com> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12socket: initial cgroup code.Glauber Costa
The goal of this work is to move the memory pressure tcp controls to a cgroup, instead of just relying on global conditions. To avoid excessive overhead in the network fast paths, the code that accounts allocated memory to a cgroup is hidden inside a static_branch(). This branch is patched out until the first non-root cgroup is created. So when nobody is using cgroups, even if it is mounted, no significant performance penalty should be seen. This patch handles the generic part of the code, and has nothing tcp-specific. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtsu.com> CC: Kirill A. Shutemov <kirill@shutemov.name> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12foundations of per-cgroup memory pressure controlling.Glauber Costa
This patch replaces all uses of struct sock fields' memory_pressure, memory_allocated, sockets_allocated, and sysctl_mem to acessor macros. Those macros can either receive a socket argument, or a mem_cgroup argument, depending on the context they live in. Since we're only doing a macro wrapping here, no performance impact at all is expected in the case where we don't have cgroups disabled. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12ipip, sit: copy parms.name after register_netdeviceTed Feng
Same fix as 731abb9cb2 for ipip and sit tunnel. Commit 1c5cae815d removed an explicit call to dev_alloc_name in ipip_tunnel_locate and ipip6_tunnel_locate, because register_netdevice will now create a valid name, however the tunnel keeps a copy of the name in the private parms structure. Fix this by copying the name back after register_netdevice has successfully returned. This shows up if you do a simple tunnel add, followed by a tunnel show: $ sudo ip tunnel add mode ipip remote 10.2.20.211 $ ip tunnel tunl0: ip/ip remote any local any ttl inherit nopmtudisc tunl%d: ip/ip remote 10.2.20.211 local any ttl inherit $ sudo ip tunnel add mode sit remote 10.2.20.212 $ ip tunnel sit0: ipv6/ip remote any local any ttl 64 nopmtudisc 6rd-prefix 2002::/16 sit%d: ioctl 89f8 failed: No such device sit%d: ipv6/ip remote 10.2.20.212 local any ttl inherit Cc: stable@vger.kernel.org Signed-off-by: Ted Feng <artisdom@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12ipv6: Fix for adding multicast route for loopback device automatically.Li Wei
There is no obvious reason to add a default multicast route for loopback devices, otherwise there would be a route entry whose dst.error set to -ENETUNREACH that would blocking all multicast packets. ==================== [ more detailed explanation ] The problem is that the resulting routing table depends on the sequence of interface's initialization and in some situation, that would block all muticast packets. Suppose there are two interfaces on my computer (lo and eth0), if we initailize 'lo' before 'eth0', the resuting routing table(for multicast) would be # ip -6 route show | grep ff00:: unreachable ff00::/8 dev lo metric 256 error -101 ff00::/8 dev eth0 metric 256 When sending multicasting packets, routing subsystem will return the first route entry which with a error set to -101(ENETUNREACH). I know the kernel will set the default ipv6 address for 'lo' when it is up and won't set the default multicast route for it, but there is no reason to stop 'init' program from setting address for 'lo', and that is exactly what systemd did. I am sure there is something wrong with kernel or systemd, currently I preferred kernel caused this problem. ==================== Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2011-12-12batman-adv: Only write requested number of byte to user bufferSven Eckelmann
Don't write more than the requested number of bytes of an batman-adv icmp packet to the userspace buffer. Otherwise unrelated userspace memory might get overridden by the kernel. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-12-12batman-adv: Directly check read of icmp packet in copy_from_userSven Eckelmann
The access_ok read check can be directly done in copy_from_user since a failure of access_ok is handled the same way as an error in __copy_from_user. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-12-12batman-adv: bat_socket_read missing checksPaul Kot
Writing a icmp_packet_rr and then reading icmp_packet can lead to kernel memory corruption, if __user *buf is just below TASK_SIZE. Signed-off-by: Paul Kot <pawlkt@gmail.com> [sven@narfation.org: made it checkpatch clean] Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-12-11net: use IS_ENABLED(CONFIG_IPV6)Eric Dumazet
Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-10udp_diag: Fix the !ipv6 casePavel Emelyanov
Wrap the udp6 lookup into the proper ifdef-s. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-10udp_diag: Make it module when ipv6 is a modulePavel Emelyanov
Eric Dumazet reported, that when inet_diag is built-in the udp_diag also goes built-in and when ipv6 is a module the udp6 lookup symbol is not found. LD .tmp_vmlinux1 net/built-in.o: In function `udp_dump_one': udp_diag.c:(.text+0xa2b40): undefined reference to `__udp6_lib_lookup' make: *** [.tmp_vmlinux1] Erreur 1 Fix this by making udp diag build mode depend on both -- inet diag and ipv6. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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