Hi Hui-Ping,

kernel test robot noticed the following build warnings:

[auto build test WARNING on mtd/nand/next] [also build test WARNING on linus/master v6.11-rc3 next-20240813] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Hui-Ping-Chen/dt-bindings-mtd... base: https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next patch link: https://lore.kernel.org/r/20240812030045.20831-3-hpchen0nvt%40gmail.com patch subject: [PATCH 2/2] mtd: rawnand: nuvoton: add new driver for the Nuvoton MA35 SoC config: arc-randconfig-r133-20240813 (https://download.01.org/0day-ci/archive/20240814/202408140515.pbHkvxZD-lkp@i...) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240814/202408140515.pbHkvxZD-lkp@i...)

If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot lkp@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202408140515.pbHkvxZD-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)

...

drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:119:3: sparse: sparse: symbol 'E_BCHALGORITHM' was not declared. Should it be static? drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:333:28: sparse: sparse: cast removes address space '__iomem' of expression

drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:348:39: sparse: sparse: cast removes address space '__iomem' of expression

...

drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:746:41: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *register ptr @@ got void [noderef] __iomem * @@

drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:746:41: sparse: expected char *register ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:746:41: sparse: got void [noderef] __iomem * drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:760:18: sparse: sparse: cast removes address space '__iomem' of expression

...

drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:774:32: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *ptr @@ got void [noderef] __iomem * @@

drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:774:32: sparse: expected char *ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:774:32: sparse: got void [noderef] __iomem * drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:813:32: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *ptr @@ got void [noderef] __iomem * @@ drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:813:32: sparse: expected char *ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:813:32: sparse: got void [noderef] __iomem * drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *register ptr @@ got void [noderef] __iomem * @@ drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: expected char *register ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: got void [noderef] __iomem * drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *register ptr @@ got void [noderef] __iomem * @@ drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: expected char *register ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: got void [noderef] __iomem * drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *register ptr @@ got void [noderef] __iomem * @@ drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: expected char *register ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: got void [noderef] __iomem * drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *register ptr @@ got void [noderef] __iomem * @@ drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: expected char *register ptr drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c:516:49: sparse: got void [noderef] __iomem *

vim +/E_BCHALGORITHM +119 drivers/mtd/nand/raw/nuvoton_ma35d1_nand.c

111 112 /* BCH algorithm related constants and variables */ 113 enum { 114 eBCH_NONE = 0, 115 eBCH_T8, 116 eBCH_T12, 117 eBCH_T24, 118 eBCH_CNT

119 } E_BCHALGORITHM;

120