Hi James, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b0c3ba31be3e45a130e13b278cf3b90f69bda6f6 commit: 176ada03e3c2cc0e0d725ea4626dfebec681578f drm/nouveau/mmu: Add correct turing page kinds date: 4 months ago config: arm64-sof-customedconfig-xrun-debug-defconfig (attached as .config) compiler: aarch64-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 git checkout 176ada03e3c2cc0e0d725ea4626dfebec681578f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <l...@intel.com> All warnings (new ones prefixed by >>, old ones prefixed by <<): >> drivers/gpu/drm/nouveau/nvkm/subdev/mmu/tu102.c:31:1: warning: no previous >> prototype for 'tu102_mmu_kind' [-Wmissing-prototypes] 31 | tu102_mmu_kind(struct nvkm_mmu *mmu, int *count, u8 *invalid) | ^~~~~~~~~~~~~~ vim +/tu102_mmu_kind +31 drivers/gpu/drm/nouveau/nvkm/subdev/mmu/tu102.c 29 30 const u8 * > 31 tu102_mmu_kind(struct nvkm_mmu *mmu, int *count, u8 *invalid) 32 { 33 static const u8 34 kind[16] = { 35 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00 */ 36 0x06, 0x06, 0x02, 0x01, 0x03, 0x04, 0x05, 0x07, 37 }; 38 *count = ARRAY_SIZE(kind); 39 *invalid = 0x07; 40 return kind; 41 } 42 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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