tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git kobject-const head: ed9d0211c055e56f57141bc3a62b4ce7036083a2 commit: 57f0edb9a3d781a8a8817ae7005aa3c17076054c [15/18] driver core: make struct bus_type.uevent() take a const * config: arm64-randconfig-r022-20221002 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=57f0edb9a3d781a8a8817ae7005aa3c17076054c git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git git fetch --no-tags driver-core kobject-const git checkout 57f0edb9a3d781a8a8817ae7005aa3c17076054c # 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=arm64 SHELL=/bin/bash drivers/amba/ drivers/gpu/host1x/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): >> drivers/amba/bus.c:447:13: error: incompatible function pointer types initializing 'int (*)(const struct device *, struct kobj_uevent_env *)' with an expression of type 'int (struct device *, struct kobj_uevent_env *)' [-Wincompatible-function-pointer-types] .uevent = amba_uevent, ^~~~~~~~~~~ 1 error generated. -- >> drivers/gpu/host1x/bus.c:388:12: error: incompatible function pointer types initializing 'int (*)(const struct device *, struct kobj_uevent_env *)' with an expression of type 'int (struct device *, struct kobj_uevent_env *)' [-Wincompatible-function-pointer-types] .uevent = host1x_device_uevent, ^~~~~~~~~~~~~~~~~~~~ 1 error generated. vim +447 drivers/amba/bus.c ba74ec7f6b2bf9 drivers/amba/bus.c Rabin Vincent 2011-02-23 436 ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 437 /* ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 438 * Primecells are part of the Advanced Microcontroller Bus Architecture, ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 439 * so we call the bus "amba". 07397df29e57cd drivers/amba/bus.c Nipun Gupta 2018-04-28 440 * DMA configuration for platform and AMBA bus is same. So here we reuse 07397df29e57cd drivers/amba/bus.c Nipun Gupta 2018-04-28 441 * platform's DMA config routine. ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 442 */ 394d5aefcdecb5 drivers/amba/bus.c Rob Herring 2011-02-12 443 struct bus_type amba_bustype = { ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 444 .name = "amba", 966449a3d8a04e drivers/amba/bus.c Greg Kroah-Hartman 2017-06-06 445 .dev_groups = amba_dev_groups, ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 446 .match = amba_match, 6d20b035dee430 arch/arm/common/amba.c Paul Jackson 2005-11-25 @447 .uevent = amba_uevent, f170b59fedd733 drivers/amba/bus.c Uwe Kleine-König 2021-01-26 448 .probe = amba_probe, f170b59fedd733 drivers/amba/bus.c Uwe Kleine-König 2021-01-26 449 .remove = amba_remove, f170b59fedd733 drivers/amba/bus.c Uwe Kleine-König 2021-01-26 450 .shutdown = amba_shutdown, 4a6d9dd564d0e7 drivers/amba/bus.c Lu Baolu 2022-04-18 451 .dma_configure = amba_dma_configure, 512881eacfa72c drivers/amba/bus.c Lu Baolu 2022-04-18 452 .dma_cleanup = amba_dma_cleanup, 26825cfd90f94f drivers/amba/bus.c Ulf Hansson 2013-12-09 453 .pm = &amba_pm, ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 454 }; e9ac68c34f70a0 drivers/amba/bus.c Kim Phillips 2018-05-14 455 EXPORT_SYMBOL_GPL(amba_bustype); ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 456 :::::: The code at line 447 was first introduced by commit :::::: 6d20b035dee4300e9786c6e1cb77a765c7f9460a [PATCH] driver kill hotplug word from sn and others fix :::::: TO: Paul Jackson :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://01.org/lkp