tree: git://git.infradead.org/users/hch/misc.git vgaarb-cleanups head: 06ce75527991e82573f5127a13dd1550c3045c35 commit: 06ce75527991e82573f5127a13dd1550c3045c35 [4/4] vgaarb: remove the unused irq_set_state argument to vga_client_register config: arm64-randconfig-r023-20210315 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a28facba1ccdc957f386b7753f4958307f1bfde8) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu git remote add hch-misc git://git.infradead.org/users/hch/misc.git git fetch --no-tags hch-misc vgaarb-cleanups git checkout 06ce75527991e82573f5127a13dd1550c3045c35 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 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 drivers/gpu/drm/msm/adreno/adreno_device.c:9: In file included from drivers/gpu/drm/msm/adreno/adreno_gpu.h:15: In file included from drivers/gpu/drm/msm/msm_gpu.h:16: In file included from drivers/gpu/drm/msm/msm_drv.h:28: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:28: In file included from include/linux/i2c.h:13: In file included from include/linux/acpi.h:35: In file included from include/acpi/acpi_io.h:7: In file included from arch/arm64/include/asm/acpi.h:12: include/linux/efi.h:1093:34: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch] status = get_var(L"SecureBoot", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, ^ include/linux/efi.h:1101:24: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch] get_var(L"SetupMode", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, &setupmode); ^ In file included from drivers/gpu/drm/msm/adreno/adreno_device.c:9: In file included from drivers/gpu/drm/msm/adreno/adreno_gpu.h:15: In file included from drivers/gpu/drm/msm/msm_gpu.h:16: In file included from drivers/gpu/drm/msm/msm_drv.h:32: In file included from include/drm/drm_fb_helper.h:39: vga_client_register(pdev, NULL, NULL, NULL); ~~~~~~~~~~~~~~~~~~~ ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ include/linux/vgaarb.h:127:19: note: 'vga_client_register' declared here static inline int vga_client_register(struct pci_dev *pdev, void *cookie, ^ 2 warnings and 1 error generated. -- In file included from drivers/gpu/drm/msm/msm_gem_submit.c:15: In file included from drivers/gpu/drm/msm/msm_drv.h:28: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:28: In file included from include/linux/i2c.h:13: In file included from include/linux/acpi.h:35: In file included from include/acpi/acpi_io.h:7: In file included from arch/arm64/include/asm/acpi.h:12: include/linux/efi.h:1093:34: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch] status = get_var(L"SecureBoot", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, ^ include/linux/efi.h:1101:24: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch] get_var(L"SetupMode", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, &setupmode); ^ In file included from drivers/gpu/drm/msm/msm_gem_submit.c:15: In file included from drivers/gpu/drm/msm/msm_drv.h:32: In file included from include/drm/drm_fb_helper.h:39: vga_client_register(pdev, NULL, NULL, NULL); ~~~~~~~~~~~~~~~~~~~ ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ include/linux/vgaarb.h:127:19: note: 'vga_client_register' declared here static inline int vga_client_register(struct pci_dev *pdev, void *cookie, ^ drivers/gpu/drm/msm/msm_gem_submit.c:206:10: warning: result of comparison of constant 18446744073709551615 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare] if (sz == SIZE_MAX) { ~~ ^ ~~~~~~~~ 3 warnings and 1 error generated. vim +136 include/linux/vgaarb.h deb2d2ecd43dfc Benjamin Herrenschmidt 2009-08-11 133 c6dc15a5e8f729 Christoph Hellwig 2021-03-15 134 static inline void vga_client_unregister(struct pci_dev *pdev) c6dc15a5e8f729 Christoph Hellwig 2021-03-15 135 { c6dc15a5e8f729 Christoph Hellwig 2021-03-15 @136 vga_client_register(pdev, NULL, NULL, NULL); c6dc15a5e8f729 Christoph Hellwig 2021-03-15 137 :::::: The code at line 136 was first introduced by commit :::::: c6dc15a5e8f729a599d8becc7b44e55908b9753e vgaarb: provide a vga_client_unregister wrapper :::::: TO: Christoph Hellwig <hch(a)lst.de&gt; :::::: CC: Christoph Hellwig <hch(a)lst.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org