Hi Christian, I love your patch! Yet something to improve: [auto build test ERROR on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Christian-K-nig/drm-debugfs-rework-debugfs-directory-creation-v2/20230329-212234 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230329132130.105355-2-christian.koenig%40amd.com patch subject: [PATCH 2/5] drm/debugfs: rework debugfs directory creation v2 config: hexagon-randconfig-r045-20230329 (https://download.01.org/0day-ci/archive/20230330/202303300140.XL9bHF8b-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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/intel-lab-lkp/linux/commit/5da92df45b1b50f794218f0f494af20ecaf94d19 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Christian-K-nig/drm-debugfs-rework-debugfs-directory-creation-v2/20230329-212234 git checkout 5da92df45b1b50f794218f0f494af20ecaf94d19 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303300140.XL9bHF8b-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/drm_atomic.c:32: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/gpu/drm/drm_atomic.c:32: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/gpu/drm/drm_atomic.c:32: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ In file included from drivers/gpu/drm/drm_atomic.c:47: >> drivers/gpu/drm/drm_internal.h:195:8: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] static drm_debugfs_dev_register(struct drm_device *dev) ~~~~~~ ^ int 6 warnings and 1 error generated. -- In file included from drivers/gpu/drm/drm_drv.c:38: In file included from include/drm/drm_accel.h:11: In file included from include/drm/drm_file.h:39: In file included from include/drm/drm_prime.h:37: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/gpu/drm/drm_drv.c:38: In file included from include/drm/drm_accel.h:11: In file included from include/drm/drm_file.h:39: In file included from include/drm/drm_prime.h:37: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/gpu/drm/drm_drv.c:38: In file included from include/drm/drm_accel.h:11: In file included from include/drm/drm_file.h:39: In file included from include/drm/drm_prime.h:37: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ In file included from drivers/gpu/drm/drm_drv.c:50: >> drivers/gpu/drm/drm_internal.h:195:8: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] static drm_debugfs_dev_register(struct drm_device *dev) ~~~~~~ ^ int >> drivers/gpu/drm/drm_drv.c:1011:2: error: call to undeclared function 'drm_debugfs_dev_fini'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] drm_debugfs_dev_fini(dev); ^ drivers/gpu/drm/drm_drv.c:1011:2: note: did you mean 'drm_debugfs_dev_init'? include/drm/drm_drv.h:596:13: note: 'drm_debugfs_dev_init' declared here static void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root) ^ 6 warnings and 2 errors generated. vim +/int +195 drivers/gpu/drm/drm_internal.h 180 181 /* drm_debugfs.c drm_debugfs_crc.c */ 182 #if defined(CONFIG_DEBUG_FS) 183 void drm_debugfs_dev_fini(struct drm_device *dev); 184 void drm_debugfs_dev_register(struct drm_device *dev); 185 int drm_debugfs_register(struct drm_minor *minor, int minor_id, 186 struct dentry *root); 187 void drm_debugfs_cleanup(struct drm_minor *minor); 188 void drm_debugfs_late_register(struct drm_device *dev); 189 void drm_debugfs_connector_add(struct drm_connector *connector); 190 void drm_debugfs_connector_remove(struct drm_connector *connector); 191 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 192 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 193 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 194 #else > 195 static drm_debugfs_dev_register(struct drm_device *dev) 196 { 197 } 198 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
