Hi Akihiro, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v4.16-rc7 next-20180327] [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/tskd08-gmail-com/dvb-frontends-dvb-pll-add-i2c-driver-support/20180327-194533 base: git://linuxtv.org/media_tree.git master reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> drivers/media/usb/dvb-usb-v2/gl861.c:575:34: sparse: symbol 'friio_props' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation