Hi Arend,

I love your patch! Yet something to improve:

[auto build test ERROR on next-20180515]
[cannot apply to wireless-drivers-next/master wireless-drivers/master bluetooth-next/master v4.17-rc5 v4.17-rc4 v4.17-rc3 v4.17-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Arend-van-Spriel/brcmfmac-coredump-functionality-and-fixes/20180515-233022
config: i386-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   WARNING: modpost: missing MODULE_LICENSE() in sound/soc/omap/snd-soc-sdma.o
   see include/linux/module.h for more information
>> ERROR: "mwifiex_send_cmd" [drivers/net/wireless/marvell/mwifiex/mwifiex_usb.ko] undefined!

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