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cdc_mbim: apply "NDP to end" quirk to all Huawei devices
authorBjørn Mork <bjorn@mork.no>
Tue, 12 Apr 2016 14:11:12 +0000 (16:11 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 May 2016 00:06:36 +0000 (17:06 -0700)
commit1d794379798b33797d9afe4a477bfd89ce399184
tree7fdf34b03ed56bf49e9b38bee78e7f50f0e3245e
parent8427d5547d0b63beb70d3858127942f828400ad2
cdc_mbim: apply "NDP to end" quirk to all Huawei devices

[ Upstream commit c5b5343cfbc9f46af65033fa4f407d7b7d98371d ]

We now have a positive report of another Huawei device needing
this quirk: The ME906s-158 (12d1:15c1).  This is an m.2 form
factor modem with no obvious relationship to the E3372 (12d1:157d)
we already have a quirk entry for.  This is reason enough to
believe the quirk might be necessary for any number of current
and future Huawei devices.

Applying the quirk to all Huawei devices, since it is crucial
to any device affected by the firmware bug, while the impact
on non-affected devices is negligible.

The quirk can if necessary be disabled per-device by writing
N to /sys/class/net/<iface>/cdc_ncm/ndp_to_end

Reported-by: Andreas Fett <andreas.fett@secunet.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/usb/cdc_mbim.c