net: cdc_mbim: change the default to send ZLPs
A number of devices in the wild have turned out to require ZLPs. Even if this is a spec violation, our priority is to make any device work as good as possible. Devices needing ZLPs will fail to receive any full sized frame we send. On the other hand, devices which do not need the ZLP will still work if we send them. This gives us no other option than sending ZLPs by default. This will prevent devices conforming to the spec from making the optimizations which are possible without ZLPs. Adding known such devices to a whitelist, to avoid the possible negative impact of the new spec violating default. Cc: Greg Suarez <gsuarez@smithmicro.com> Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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