Hi Jacopo, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v4.17-rc7 next-20180530] [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/Jacopo-Mondi/Remove-sh_mobile_ceu_camera-from-arch-sh/20180530-060153 config: sh-kfr2r09_defconfig (attached as .config) compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=sh All warnings (new ones prefixed by >>): In file included from arch/sh/boards/mach-kfr2r09/setup.c:28:0: >> include/linux/mtd/onenand.h:225:12: warning: 'struct mtd_oob_ops' declared inside parameter list will not be visible outside of this definition or declaration struct mtd_oob_ops *ops); ^~~~~~~~~~~ vim +225 include/linux/mtd/onenand.h cd5f6346 Kyungmin Park 2005-07-11 223 607d1cb1 Adrian Bunk 2008-04-14 224 int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, 607d1cb1 Adrian Bunk 2008-04-14 @225 struct mtd_oob_ops *ops); 5988af23 Rohit Hagargundgi 2009-05-12 226 unsigned onenand_block(struct onenand_chip *this, loff_t addr); 5988af23 Rohit Hagargundgi 2009-05-12 227 loff_t onenand_addr(struct onenand_chip *this, int block); 5988af23 Rohit Hagargundgi 2009-05-12 228 int flexonenand_region(struct mtd_info *mtd, loff_t addr); 607d1cb1 Adrian Bunk 2008-04-14 229 :::::: The code at line 225 was first introduced by commit :::::: 607d1cb1042657177bf72247eeb85c0d8416bd51 [MTD] [OneNAND] proper onenand_bbt_read_oob() prototype :::::: TO: Adrian Bunk :::::: CC: David Woodhouse --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation