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  1. 25 1月, 2017 21 次提交
  3. 24 1月, 2017 5 次提交
    • D
      Merge tag 'mac80211-for-davem-2017-01-24' of... · baae29d6
      由 David S. Miller 提交于 
      Merge tag 'mac80211-for-davem-2017-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
A single fix, for a sleeping context problem found by LTP.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      baae29d6
    • J
      mac80211: don't try to sleep in rate_control_rate_init() · 115865fa
      由 Johannes Berg 提交于 
      In my previous patch, I missed that rate_control_rate_init() is
called from some places that cannot sleep, so it cannot call
ieee80211_recalc_min_chandef(). Remove that call for now to fix
the context bug, we'll have to find a different way to fix the
minimum channel width issue.

Fixes: 96aa2e7c ("mac80211: calculate min channel width correctly")
Reported-by: NXiaolong Ye (via lkp-robot) <xiaolong.ye@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
      115865fa
    • F
      net: dsa: Check return value of phy_connect_direct() · 4078b76c
      由 Florian Fainelli 提交于 
      We need to check the return value of phy_connect_direct() in
dsa_slave_phy_connect() otherwise we may be continuing the
initialization of a slave network device with a PHY that already
attached somewhere else and which will soon be in error because the PHY
device is in error.

The conditions for such an error to occur are that we have a port of our
switch that is not disabled, and has the same port number as a PHY
address (say both 5) that can be probed using the DSA slave MII bus. We
end-up having this slave network device find a PHY at the same address
as our port number, and we try to attach to it.

A slave network (e.g: port 0) has already attached to our PHY device,
and we try to re-attach it with a different network device, but since we
ignore the error we would end-up initializating incorrect device
references by the time the slave network interface is opened.

The code has been (re)organized several times, making it hard to provide
an exact Fixes tag, this is a bugfix nonetheless.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4078b76c
    • F
      net: phy: Avoid deadlock during phy_error() · eab12771
      由 Florian Fainelli 提交于 
      phy_error() is called in the PHY state machine workqueue context, and
calls phy_trigger_machine() which does a cancel_delayed_work_sync() of
the workqueue we execute from, causing a deadlock situation.

Augment phy_trigger_machine() machine with a sync boolean indicating
whether we should use cancel_*_sync() or just cancel_*_work().

Fixes: 3c293f4e ("net: phy: Trigger state machine on state change and not polling.")
Reported-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      eab12771
    • D
      net: mpls: Fix multipath selection for LSR use case · 9f427a0e
      由 David Ahern 提交于 
      MPLS multipath for LSR is broken -- always selecting the first nexthop
in the one label case. For example:

    $ ip -f mpls ro ls
    100
            nexthop as to 200 via inet 172.16.2.2  dev virt12
            nexthop as to 300 via inet 172.16.3.2  dev virt13
    101
            nexthop as to 201 via inet6 2000:2::2  dev virt12
            nexthop as to 301 via inet6 2000:3::2  dev virt13

In this example incoming packets have a single MPLS labels which means
BOS bit is set. The BOS bit is passed from mpls_forward down to
mpls_multipath_hash which never processes the hash loop because BOS is 1.

Update mpls_multipath_hash to process the entire label stack. mpls_hdr_len
tracks the total mpls header length on each pass (on pass N mpls_hdr_len
is N * sizeof(mpls_shim_hdr)). When the label is found with the BOS set
it verifies the skb has sufficient header for ipv4 or ipv6, and find the
IPv4 and IPv6 header by using the last mpls_hdr pointer and adding 1 to
advance past it.

With these changes I have verified the code correctly sees the label,
BOS, IPv4 and IPv6 addresses in the network header and icmp/tcp/udp
traffic for ipv4 and ipv6 are distributed across the nexthops.

Fixes: 1c78efa8 ("mpls: flow-based multipath selection")
Acked-by: NRobert Shearman <rshearma@brocade.com>
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      9f427a0e
  5. 23 1月, 2017 3 次提交
  7. 21 1月, 2017 11 次提交