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 arm-soc/for-next linus/master linux/master v5.7-rc5 next-20200514] [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-rawnand-Add-NAND-controller-support-on-Intel-LGM-SoC/20200515-185904 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next reproduce: # apt-get install sparse # sparse version: v0.6.1-193-gb8fad4bc-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> 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 __be32 [assignedunsigned 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 [assigned] [usertype] reg drivers/mtd/nand/raw/intel-nand-controller.c:444:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int val @@ got restricted __be32 [assignedunsigned int val @@ drivers/mtd/nand/raw/intel-nand-controller.c:444:24: sparse: expected unsigned int val drivers/mtd/nand/raw/intel-nand-controller.c:444:24: sparse: got restricted __be32 [assigned] [usertype] reg vim +441 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 __be32 reg; 429 430 ebu_nand_trigger(ebu_host, page, NAND_CMD_SEQIN); 431 432 ret = ebu_dma_start(ebu_host, DMA_MEM_TO_DEV, buf, mtd->writesize); 433 if (ret) 434 return ret; 435 436 if (oob_required) { 437 const u8 *pdata; 438 439 pdata = chip->oob_poi; 440 reg = cpu_to_be32(*pdata++); > 441 writel(reg, ebu_host->hsnand + HSNAND_CMSG_0); 442 443 reg = cpu_to_be32(*pdata); 444 writel(reg, ebu_host->hsnand + HSNAND_CMSG_1); 445 } 446 447 ret = readl_poll_timeout_atomic(int_sta, val, 448 !(val & HSNAND_INT_STA_WR_C), 10, 1000); 449 if (ret) 450 return -EIO; 451 452 x = readl(ebu_host->hsnand + HSNAND_CTL); 453 x &= ~HSNAND_CTL_GO; 454 writel(x, ebu_host->hsnand + HSNAND_CTL); 455 456 return 0; 457 } 458 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx