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  1. 04 4月, 2017 14 次提交
  3. 03 4月, 2017 7 次提交
    • D
      Merge branch 'rds-minor-bug-fixes' · d4f4b915
      由 David S. Miller 提交于 
      Sowmini Varadhan says:

====================
rds: tcp: couple of minor bug fixes

A couple of minor bugfixes that showed up during testing
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d4f4b915
    • S
      rds: tcp: canonical connection order for all paths with index > 0 · 087d9753
      由 Sowmini Varadhan 提交于 
      The rds_connect_worker() has a bug in the check that enforces the
canonical connection order described in the comments of
rds_tcp_state_change(). The intention is to make sure that all
the multipath connections are always initiated by the smaller IP
address via rds_start_mprds. To achieve this, rds_connection_worker
should check that cp_index > 0.
Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      087d9753
    • S
      rds: tcp: allow progress of rds_conn_shutdown if the rds_connection is marked... · e97656d0
      由 Sowmini Varadhan 提交于 
      rds: tcp: allow progress of rds_conn_shutdown if the rds_connection is marked ERROR by an intervening FIN

rds_conn_shutdown() runs in workq context, and marks the rds_connection
as DISCONNECTING before quiescing Tx/Rx paths. However, after all I/O
has quiesced, we may still find the rds_connection state to be
RDS_CONN_ERROR if an intervening FIN was processed in softirq context.

This is not a fatal error: rds_conn_shutdown() should continue the
shutdown, and there is no need to log noisy messages about this event.
Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e97656d0
    • E
      sock: correctly test SOCK_TIMESTAMP in sock_recv_ts_and_drops() · d3fbff30
      由 Eric Dumazet 提交于 
      It seems the code does not match the intent.

This broke packetdrill, and probably other programs.

Fixes: 6c7c98ba ("sock: avoid dirtying sk_stamp, if possible")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Acked-by: NPaolo Abeni <pabeni@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d3fbff30
    • A
      drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c: fix build with gcc-4.4.4 · e270e966
      由 Andrew Morton 提交于 
      drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c: In function 'mlx5e_set_rxfh':
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:1067: error: unknown field 'rss' specified in initializer
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:1067: warning: missing braces around initializer
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:1067: warning: (near initialization for 'rrp.<anonymous>')
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:1068: error: unknown field 'rss' specified in initializer
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:1069: warning: excess elements in struct initializer
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:1069: warning: (near initialization for 'rrp')

gcc-4.4.4 has issues with anonymous union initializers.  Work around this.

Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e270e966
    • A
      drivers/net/ethernet/mellanox/mlx5/core/en_main.c: fix build with gcc-4.4.4 · 95632791
      由 Andrew Morton 提交于 
      drivers/net/ethernet/mellanox/mlx5/core/en_main.c: In function 'mlx5e_redirect_rqts':
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2210: error: unknown field 'rqn' specified in initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2211: warning: missing braces around initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2211: warning: (near initialization for 'direct_rrp.<anonymous>')
drivers/net/ethernet/mellanox/mlx5/core/en_main.c: In function 'mlx5e_redirect_rqts_to_channels':
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2227: error: unknown field 'rss' specified in initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2227: warning: missing braces around initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2227: warning: (near initialization for 'rrp.<anonymous>')
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2227: warning: initialization makes integer from pointer without a cast
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2228: error: unknown field 'rss' specified in initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2229: warning: excess elements in struct initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2229: warning: (near initialization for 'rrp')
drivers/net/ethernet/mellanox/mlx5/core/en_main.c: In function 'mlx5e_redirect_rqts_to_drop':
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2238: error: unknown field 'rqn' specified in initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2239: warning: missing braces around initializer
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2239: warning: (near initialization for 'drop_rrp.<anonymous>')

gcc-4.4.4 has issues with anonymous union initializers.  Work around this.

Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      95632791
    • J
      net: stmmac: fix cbs configuration · 44781fef
      由 Joao Pinto 提交于 
      Sending again, because forgot to include net-dev.

The QoS IP does not accept AVB capabilities to default/queue 0, this way we
guarantee 75% bandwidth for AVB. This patch assures that only queues >= 1
gets CBS confgured. Additional info was also added to stmmac.txt.
Reported-by: NNiklas Cassel <niklas.cassel@axis.com>
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      44781fef
  5. 02 4月, 2017 19 次提交
    • D
      Merge branch 'mpls-more-labels' · a6fc09df
      由 David S. Miller 提交于 
      David Ahern says:

====================
net: mpls: Allow users to configure more labels per route

Increase the maximum number of new labels for MPLS routes from 2 to 30.

To keep memory consumption in check, the labels array is moved to the end
of mpls_nh and mpls_iptunnel_encap structs as a 0-sized array. Allocations
use the maximum number of labels across all nexthops in a route for LSR
and the number of labels configured for LWT.

The mpls_route layout is changed to:

   +----------------------+
   | mpls_route           |
   +----------------------+
   | mpls_nh 0            |
   +----------------------+
   | alignment padding    |   4 bytes for odd number of labels; 0 for even
   +----------------------+
   | via[rt_max_alen] 0   |
   +----------------------+
   | alignment padding    |   via's aligned on sizeof(unsigned long)
   +----------------------+
   | ...                  |

Meaning the via follows its mpls_nh providing better locality as the
number of labels increases. UDP_RR tests with namespaces shows no impact
to a modest performance increase with this layout for 1 or 2 labels and
1 or 2 nexthops.

mpls_route allocation size is limited to 4096 bytes allowing on the
order of 30 nexthops with 30 labels (or more nexthops with fewer
labels). LWT encap shares same maximum number of labels as mpls routing.

v3
- initialize n_labels to 0 in case RTA_NEWDST is not defined; detected
  by the kbuild test robot

v2
- updates per Eric's comments
  + added patch to ensure all reads of rt_nhn_alive and nh_flags in
    the packet path use READ_ONCE and all writes via event handlers
    use WRITE_ONCE

  + limit mpls_route size to 4096 (PAGE_SIZE for most arch)

  + mostly killed use of MAX_NEW_LABELS; it exists only for common
    limit between lwt and routing paths
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a6fc09df
    • D
      net: mpls: Increase max number of labels for lwt encap · 1511009c
      由 David Ahern 提交于 
      Alow users to push down more labels per MPLS encap. Similar to LSR case,
move label array to the end of mpls_iptunnel_encap and allocate based on
the number of labels for the route.

For consistency with the LSR case, re-use the same maximum number of
labels.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1511009c
    • D
      net: mpls: bump maximum number of labels · a4ac8c98
      由 David Ahern 提交于 
      Allow users to push down more labels per MPLS route. With the previous
patches, no memory allocations are based on MAX_NEW_LABELS; the limit
is only used to keep userspace in check.

At this point MAX_NEW_LABELS is only used for mpls_route_config (copying
route data from userspace) and processing nexthops looking for the max
number of labels across the route spec.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a4ac8c98
    • D
      net: mpls: Limit memory allocation for mpls_route · df1c6316
      由 David Ahern 提交于 
      Limit memory allocation size for mpls_route to 4096.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      df1c6316
    • D
      net: mpls: change mpls_route layout · 59b20966
      由 David Ahern 提交于 
      Move labels to the end of mpls_nh as a 0-sized array and within mpls_route
move the via for a nexthop after the mpls_nh. The new layout becomes:

   +----------------------+
   | mpls_route           |
   +----------------------+
   | mpls_nh 0            |
   +----------------------+
   | alignment padding    |   4 bytes for odd number of labels; 0 for even
   +----------------------+
   | via[rt_max_alen] 0   |
   +----------------------+
   | alignment padding    |   via's aligned on sizeof(unsigned long)
   +----------------------+
   | ...                  |
   +----------------------+
   | mpls_nh n-1          |
   +----------------------+
   | via[rt_max_alen] n-1 |
   +----------------------+

Memory allocated for nexthop + via is constant across all nexthops and
their via. It is based on the maximum number of labels across all nexthops
and the maximum via length. The size is saved in the mpls_route as
rt_nh_size. Accessing a nexthop becomes rt->rt_nh + index * rt->rt_nh_size.

The offset of the via address from a nexthop is saved as rt_via_offset
so that given an mpls_nh pointer the via for that hop is simply
nh + rt->rt_via_offset.

With prior code, memory allocated per mpls_route with 1 nexthop:
     via is an ethernet address - 64 bytes
     via is an ipv4 address     - 64
     via is an ipv6 address     - 72

With this patch set, memory allocated per mpls_route with 1 nexthop and
1 or 2 labels:
     via is an ethernet address - 56 bytes
     via is an ipv4 address     - 56
     via is an ipv6 address     - 64

The 8-byte reduction is due to the previous patch; the change introduced
by this patch has no impact on the size of allocations for 1 or 2 labels.

Performance impact of this change was examined using network namespaces
with veth pairs connecting namespaces. ns0 inserts the packet to the
label-switched path using an lwt route with encap mpls. ns1 adds 1 or 2
labels depending on test, ns2 (and ns3 for 2-label test) pops the label
and forwards. ns3 (or ns4) for a 2-label is the destination. Similar
series of namespaces used for 2-nexthop test.

Intent is to measure changes to latency (overhead in manipulating the
packet) in the forwarding path. Tests used netperf with UDP_RR.

IPv4:                     current   patches
   1 label, 1 nexthop      29908     30115
   2 label, 1 nexthop      29071     29612
   1 label, 2 nexthop      29582     29776
   2 label, 2 nexthop      29086     29149

IPv6:                     current   patches
   1 label, 1 nexthop      24502     24960
   2 label, 1 nexthop      24041     24407
   1 label, 2 nexthop      23795     23899
   2 label, 2 nexthop      23074     22959

In short, the change has no effect to a modest increase in performance.
This is expected since this patch does not really have an impact on routes
with 1 or 2 labels (the current limit) and 1 or 2 nexthops.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      59b20966
    • D
      net: mpls: Convert number of nexthops to u8 · 77ef013a
      由 David Ahern 提交于 
      Number of nexthops and number of alive nexthops are tracked using an
unsigned int. A route should never have more than 255 nexthops so
convert both to u8. Update all references and intermediate variables
to consistently use u8 as well.

Shrinks the size of mpls_route from 32 bytes to 24 bytes with a 2-byte
hole before the nexthops.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      77ef013a
    • D
      net: mpls: rt_nhn_alive and nh_flags should be accessed using READ_ONCE · 39eb8cd1
      由 David Ahern 提交于 
      The number of alive nexthops for a route (rt->rt_nhn_alive) and the
flags for a next hop (nh->nh_flags) are modified by netdev event
handlers. The event handlers run with rtnl_lock held so updates are
always done with the lock held. The packet path accesses the fields
under the rcu lock. Since those fields can change at any moment in
the packet path, both fields should be accessed using READ_ONCE. Updates
to both fields should use WRITE_ONCE.

Update mpls_select_multipath (packet path) and mpls_ifdown and mpls_ifup
(event handlers) accordingly.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      39eb8cd1
    • P
      udp: use sk_protocol instead of pcflag to detect udplite sockets · 3d8417d7
      由 Paolo Abeni 提交于 
      In the udp_sock struct, the 'forward_deficit' and 'pcflag' fields
share the same cacheline. While the first is dirtied by
udp_recvmsg, the latter is read, possibly several times, by the
bottom half processing to discriminate between udp and udplite
sockets.

With this patch, sk->sk_protocol is used to check is the socket is
really an udplite one, avoiding some cache misses per
packet and improving the performance under udp_flood with
small packet up to 10%.
Signed-off-by: NPaolo Abeni <pabeni@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      3d8417d7
    • T
      net: dsa: fix build error with devlink build as module · 768bfa2a
      由 Tobias Regnery 提交于 
      After commit 96567d5d ("net: dsa: dsa2: Add basic support of devlink")
I see the following link error with CONFIG_NET_DSA=y and CONFIG_NET_DEVLINK=m:

net/built-in.o: In function 'dsa_register_switch':
(.text+0xe226b): undefined reference to `devlink_alloc'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe2284): undefined reference to `devlink_register'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe243e): undefined reference to `devlink_port_register'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe24e1): undefined reference to `devlink_port_register'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe24fa): undefined reference to `devlink_port_type_eth_set'
net/built-in.o: In function 'dsa_dst_unapply.part.8':
dsa2.c:(.text.unlikely+0x345): undefined reference to 'devlink_port_unregister'
dsa2.c:(.text.unlikely+0x36c): undefined reference to 'devlink_port_unregister'
dsa2.c:(.text.unlikely+0x38e): undefined reference to 'devlink_port_unregister'
dsa2.c:(.text.unlikely+0x3f2): undefined reference to 'devlink_unregister'
dsa2.c:(.text.unlikely+0x3fb): undefined reference to 'devlink_free'

Fix this by adding a dependency on MAY_USE_DEVLINK so that CONFIG_NET_DSA
get switched to be build as module when CONFIG_NET_DEVLINK=m.

Fixes: 96567d5d ("net: dsa: dsa2: Add basic support of devlink")
Signed-off-by: NTobias Regnery <tobias.regnery@gmail.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      768bfa2a
    • D
      Merge branch 'phylib-EEE-updates' · 88f913f5
      由 David S. Miller 提交于 
      Russell King says:

====================
phylib EEE updates

This series of patches depends on the previous set of changes, and is
therefore net-next material.

While testing the EEE code, I discovered a number of issues:

1. It is possible to enable advertisment of EEE modes which are not
   supported by the hardware.  We omit to check the supported modes
   and mask off those modes that are not supported before writing the
   EEE advertisment register.

2. We need to restart autonegotiation after a change of the EEE
   advertisment, otherwise the link partner does not see the updated
   EEE modes.

3. SGMII connected PHYs are also capable of supporting EEE.

Through discussion with Florian, it has been decided to remove the check
for the PHY interface mode in patch (3).
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      88f913f5
    • R
      net: phy: allow EEE with any interface mode · 32d75141
      由 Russell King 提交于 
      EEE is able to work in any PHY interface mode, there is nothing which
fundamentally restricts it to only a few modes.  For example, EEE works
in SGMII mode with the Marvell 88E1512.

Rather than just adding SGMII mode to the list, Florian suggests
removing the list of interface modes entirely:

  It actually sounds like we should just kill the check entirely,
  it does not appear that any of the interface mode would not
  fundamentally be able to support EEE, because the "lowest" mode
  we support is MII, and even there it's quite possible to support
  EEE.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      32d75141
    • R
      net: phy: restart phy autonegotiation after EEE advertisment change · f75abeb8
      由 Russell King 提交于 
      When the EEE advertisment is changed, we should restart autonegotiation
to update the link partner with the new EEE settings.  Add this trigger
but only if the advertisment has changed.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f75abeb8
    • R
      net: phy: avoid setting unsupported EEE advertisments · 83ea067f
      由 Russell King 提交于 
      We currently allow userspace to set any EEE advertisments it desires,
whether or not the PHY supports them.  For example:

 # ethtool --set-eee eth1 advertise 0xffffffff
 # ethtool --show-eee eth1
 EEE Settings for eth1:
        EEE status: disabled
        Tx LPI: disabled
        Supported EEE link modes:  100baseT/Full
                                   1000baseT/Full
                                   10000baseT/Full
        Advertised EEE link modes:  100baseT/Full
                                    1000baseT/Full
                                    1000baseKX/Full
                                    10000baseT/Full
                                    10000baseKX4/Full
                                    10000baseKR/Full

Clearly, this is not sane, we should only allow link modes that are
supported to be advertised (as we do elsewhere.)  Ensure that we mask
the MDIO_AN_EEE_ADV value with the capabilities retrieved from the
MDIO_PCS_EEE_ABLE register.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      83ea067f
    • D
      Merge branch 'bpf-prog-testing-framework' · eefe06e8
      由 David S. Miller 提交于 
      Alexei Starovoitov says:

====================
bpf: program testing framework

Development and testing of networking bpf programs is quite cumbersome.
Especially tricky are XDP programs that attach to real netdevices and
program development feels like working on the car engine while
the car is in motion.
Another problem is ongoing changes to upstream llvm core
that can introduce an optimization that verifier will not
recognize. llvm bpf backend tests have no ability to run the programs.
To improve this situation introduce BPF_PROG_TEST_RUN command
to test and performance benchmark bpf programs.
It achieves several goals:
- development of xdp and skb based bpf programs can be done
in a canned environment with unit tests
- program performance optimizations can be benchmarked outside of
networking core (without driver and skb costs)
- continuous testing of upstream changes is finally practical

Patches 4,5,6 add C based test cases of various complexity
to cover some sched_cls and xdp features. More tests will
be added in the future. The tests were run on centos7 only.

For now the framework supports only skb and xdp programs. In the future
it can be extended to socket_filter and tracing program types.

More details are in individual patches.

v1->v2:
- rename bpf_program_test_run->bpf_prog_test_run
- add missing #include <linux/bpf.h> since libbpf.h shouldn't depend
on prior includes
- reordered patches 3 and 4 to keep bisect clean
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      eefe06e8
    • A
      selftests/bpf: add l4 load balancer test based on sched_cls · 37821613
      由 Alexei Starovoitov 提交于 
      this l4lb demo is a comprehensive test case for LLVM codegen and
kernel verifier. It's using fully inlined jhash(), complex packet
parsing and multiple map lookups of different types to stress
llvm and verifier.
The map sizes, map population and test vectors are artificial to
exercise different paths through the bpf program.
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NMartin KaFai Lau <kafai@fb.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      37821613
    • A
      selftests/bpf: add a test for basic XDP functionality · 8d48f5e4
      由 Alexei Starovoitov 提交于 
      add C test for xdp_adjust_head(), packet rewrite and map lookups
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NMartin KaFai Lau <kafai@fb.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8d48f5e4
    • A
      selftests/bpf: add a test for overlapping packet range checks · 6882804c
      由 Alexei Starovoitov 提交于 
      add simple C test case for llvm and verifier range check fix from
commit b1977682 ("bpf: improve verifier packet range checks")
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NMartin KaFai Lau <kafai@fb.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6882804c
    • A
      tools/lib/bpf: expose bpf_program__set_type() · dd26b7f5
      由 Alexei Starovoitov 提交于 
      expose bpf_program__set_type() to set program type
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NMartin KaFai Lau <kafai@fb.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      dd26b7f5
    • A
      tools/lib/bpf: add support for BPF_PROG_TEST_RUN command · 30848873
      由 Alexei Starovoitov 提交于 
      add support for BPF_PROG_TEST_RUN command to libbpf.a
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NMartin KaFai Lau <kafai@fb.com>
Acked-by: NWang Nan <wangnan0@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      30848873