[kbuild-all] [superna9999:narmstrong/v5.12/it66121-dev 9/14] drivers/gpu/drm/bridge/ite-it66121.c:242:2: error: implicit declaration of function 'gpiod_set_value'

tree: https://github.com/superna9999/linux narmstrong/v5.12/it66121-dev head: aefbe6420b44fb3e04b147e1db8e608bbec252c6 commit: ae611ce1b3d1e2e5832273977b7e0656b9600ed0 [9/14] drm: bridge: add it66121 driver config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/superna9999/linux/commit/ae611ce1b3d1e2e5832273977b7e0... git remote add superna9999 https://github.com/superna9999/linux git fetch --no-tags superna9999 narmstrong/v5.12/it66121-dev git checkout ae611ce1b3d1e2e5832273977b7e0656b9600ed0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/dev_printk.h:14, from include/linux/device.h:15, from drivers/gpu/drm/bridge/ite-it66121.c:10: include/linux/scatterlist.h: In function 'sg_set_buf': arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra] 174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory) | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:137:2: note: in expansion of macro 'BUG_ON' 137 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:137:10: note: in expansion of macro 'virt_addr_valid' 137 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/ite-it66121.c: In function 'it66121_hw_reset': 242 | gpiod_set_value(ctx->gpio_reset, 1); | ^~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/ite-it66121.c: In function 'it66121_probe': 1016 | revision_id = FIELD_GET(IT66121_REVISION_MASK, device_ids[1]); | ^~~~~~~~~ | FOLL_GET cc1: some warnings being treated as errors vim +/gpiod_set_value +242 drivers/gpu/drm/bridge/ite-it66121.c 239 240 static void it66121_hw_reset(struct it66121_ctx *ctx) 241 { 243 msleep(20); 244 gpiod_set_value(ctx->gpio_reset, 0); 245 } 246 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org