Hi "Ramuthevar,Vadivel, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on soc/for-next linus/master linux/master v5.7-rc6 next-20200518] [cannot apply to mtd/master] [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/Ramuthevar-Vadivel-MuruganX/mtd-... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: x86_64-allmodconfig (attached as .config) reproduce: # apt-get install sparse # sparse version: v0.6.1-193-gb8fad4bc-dirty # save the attached .config to linux build tree make C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/mtd/nand/raw/intel-nand-controller.c:439:24: sparse: expected unsigned int val drivers/mtd/nand/raw/intel-nand-controller.c:441:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int val @@ got restricted __be3unsigned int val @@ drivers/mtd/nand/raw/intel-nand-controller.c:441:24: sparse: expected unsigned int val drivers/mtd/nand/raw/intel-nand-controller.c:441:24: sparse: got restricted __be32 [usertype] vim +439 drivers/mtd/nand/raw/intel-nand-controller.c 420 421 static int ebu_nand_write_page_hwecc(struct nand_chip *chip, const u8 *buf, 422 int oob_required, int page) 423 { 424 struct mtd_info *mtd = nand_to_mtd(chip); 425 struct ebu_nand_controller *ebu_host = nand_get_controller_data(chip); 426 void __iomem *int_sta = ebu_host->hsnand + HSNAND_INT_STA; 427 int ret, val, x; 428 429 ebu_nand_trigger(ebu_host, page, NAND_CMD_SEQIN); 430 431 ret = ebu_dma_start(ebu_host, DMA_MEM_TO_DEV, buf, mtd->writesize); 432 if (ret) 433 return ret; 434 435 if (oob_required) { 436 const u8 *pdata; 437 438 pdata = chip->oob_poi; 440 441 writel(cpu_to_be32(*pdata), ebu_host->hsnand + HSNAND_CMSG_1); 442 } 443 444 ret = readl_poll_timeout_atomic(int_sta, val, 445 !(val & HSNAND_INT_STA_WR_C), 10, 1000); 446 if (ret) 447 return -EIO; 448 449 x = readl(ebu_host->hsnand + HSNAND_CTL); 450 x &= ~HSNAND_CTL_GO; 451 writel(x, ebu_host->hsnand + HSNAND_CTL); 452 453 return 0; 454 } 455 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org