Hi Dmitry, I love your patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on tegra/for-next linus/master v5.6-rc3 next-20200226] [cannot apply to ulf.hansson-mmc/next] [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/Dmitry-Osipenko/Introduce-NVIDIA-Tegra-Partition-Table/20200225-072610 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: m68k-randconfig-a001-20200227 (attached as .config) compiler: m68k-linux-gcc (GCC) 7.5.0 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 GCC_VERSION=7.5.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): drivers/mmc/host/wbsd.c: In function 'wbsd_request_end': drivers/mmc/host/wbsd.c:210:14: error: implicit declaration of function 'claim_dma_lock'; did you mean 'can_do_mlock'? [-Werror=implicit-function-declaration] dmaflags = claim_dma_lock(); ^~~~~~~~~~~~~~ can_do_mlock >> drivers/mmc/host/wbsd.c:213:3: error: implicit declaration of function 'release_dma_lock'; did you mean 'release_pages'? [-Werror=implicit-function-declaration] release_dma_lock(dmaflags); ^~~~~~~~~~~~~~~~ release_pages cc1: some warnings being treated as errors vim +213 drivers/mmc/host/wbsd.c ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 201 ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 202 static void wbsd_request_end(struct wbsd_host *host, struct mmc_request *mrq) ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 203 { ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 204 unsigned long dmaflags; ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 205 cfa7f52164d6cd drivers/mmc/wbsd.c Pierre Ossman 2006-01-08 206 if (host->dma >= 0) { ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 207 /* ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 208 * Release ISA DMA controller. ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 209 */ ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 @210 dmaflags = claim_dma_lock(); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 211 disable_dma(host->dma); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 212 clear_dma_ff(host->dma); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 @213 release_dma_lock(dmaflags); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 214 ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 215 /* ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 216 * Disable DMA on host. ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 217 */ ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 218 wbsd_write_index(host, WBSD_IDX_DMA, 0); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 219 } ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 220 ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 221 host->mrq = NULL; ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 222 ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 223 /* ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 224 * MMC layer might call back into the driver so first unlock. ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 225 */ ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 226 spin_unlock(&host->lock); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 227 mmc_request_done(host->mmc, mrq); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 228 spin_lock(&host->lock); ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 229 } ^1da177e4c3f41 drivers/mmc/wbsd.c Linus Torvalds 2005-04-16 230 :::::: The code at line 213 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds :::::: CC: Linus Torvalds --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org