We're not handling rmmod/modprobe correctly. Try (on kevin, for instance):

rmmod mwifiex_pcie; modprobe mwifiex_pcie

We'll see this warning:

[ 2691.367315] mwifiex_pcie 003f:01:00.0: fail to init wakeup for mwifiex

I think the error is mostly harmless, but we should be handling cleaning this up and re-init'ing better.

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I might take a look sometime eventually, but feel free to grab from me if you'd like.