Hi "Daniel,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on v5.6-rc6 next-20200317]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Daniel-W-S-Almeida/Implement-a-virtual-DVB-driver/20200318-161944
base:   git://linuxtv.org/media_tree.git master
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-180-g0558317d-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/media/dvb-frontends/dvb_dummy_fe.c:90:6: sparse: sparse: symbol 'poll_snr_handler' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org