[PATCH 2/5] drm/debugfs: rework debugfs directory creation v3
kernel test robot
lkp at intel.com
Thu Apr 13 15:39:10 UTC 2023
Hi Christian,
kernel test robot noticed the following build errors:
[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on drm-intel/for-linux-next drm-intel/for-linux-next-fixes tegra/for-next linus/master v6.3-rc6 next-20230412]
[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/Christian-K-nig/drm-debugfs-rework-debugfs-directory-creation-v3/20230412-235231
base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link: https://lore.kernel.org/r/20230412145206.2483-3-christian.koenig%40amd.com
patch subject: [PATCH 2/5] drm/debugfs: rework debugfs directory creation v3
config: hexagon-randconfig-r002-20230409 (https://download.01.org/0day-ci/archive/20230413/202304132344.9oz5dfJI-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 9638da200e00bd069e6dd63604e14cbafede9324)
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/92a7a4f0fd59d427c5827c323692b76095f90efc
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-v3/20230412-235231
git checkout 92a7a4f0fd59d427c5827c323692b76095f90efc
# 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/drm/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp at intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304132344.9oz5dfJI-lkp@intel.com/
All errors (new ones prefixed by >>):
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);
~~~~~~~~~~ ^
>> 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 1 error generated.
vim +/drm_debugfs_dev_fini +1011 drivers/gpu/drm/drm_drv.c
974
975 /**
976 * drm_dev_unregister - Unregister DRM device
977 * @dev: Device to unregister
978 *
979 * Unregister the DRM device from the system. This does the reverse of
980 * drm_dev_register() but does not deallocate the device. The caller must call
981 * drm_dev_put() to drop their final reference.
982 *
983 * A special form of unregistering for hotpluggable devices is drm_dev_unplug(),
984 * which can be called while there are still open users of @dev.
985 *
986 * This should be called first in the device teardown code to make sure
987 * userspace can't access the device instance any more.
988 */
989 void drm_dev_unregister(struct drm_device *dev)
990 {
991 if (drm_core_check_feature(dev, DRIVER_LEGACY))
992 drm_lastclose(dev);
993
994 dev->registered = false;
995
996 drm_client_dev_unregister(dev);
997
998 if (drm_core_check_feature(dev, DRIVER_MODESET))
999 drm_modeset_unregister_all(dev);
1000
1001 if (dev->driver->unload)
1002 dev->driver->unload(dev);
1003
1004 drm_legacy_pci_agp_destroy(dev);
1005 drm_legacy_rmmaps(dev);
1006
1007 remove_compat_control_link(dev);
1008 drm_minor_unregister(dev, DRM_MINOR_ACCEL);
1009 drm_minor_unregister(dev, DRM_MINOR_PRIMARY);
1010 drm_minor_unregister(dev, DRM_MINOR_RENDER);
> 1011 drm_debugfs_dev_fini(dev);
1012 }
1013 EXPORT_SYMBOL(drm_dev_unregister);
1014
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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