Hi Raag, kernel test robot noticed the following build warnings: [auto build test WARNING on a1e062ab4a1f19bb0e94093ef90ab9a74f1f7744] url: https://github.com/intel-lab-lkp/linux/commits/Raag-Jadav/driver-core-Split-devres-APIs-to-device-devres-h/20250210-145732 base: a1e062ab4a1f19bb0e94093ef90ab9a74f1f7744 patch link: https://lore.kernel.org/r/20250210064906.2181867-2-raag.jadav%40intel.com patch subject: [PATCH v4 01/20] driver core: Split devres APIs to device/devres.h config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20250211/202502110256.ZtYROQTy-lkp@xxxxxxxxx/config) compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250211/202502110256.ZtYROQTy-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502110256.ZtYROQTy-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/input/input.c:14: In file included from include/linux/input/mt.h:11: In file included from include/linux/input.h:19: In file included from include/linux/device.h:31: In file included from include/linux/device/devres.h:7: In file included from include/linux/io.h:14: In file included from arch/powerpc/include/asm/io.h:274: >> arch/powerpc/include/asm/eeh.h:304:45: warning: declaration of 'struct iommu_group' will not be visible outside of this function [-Wvisibility] struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group); ^ 1 warning generated. -- In file included from drivers/input/touchscreen/mms114.c:10: In file included from include/linux/i2c.h:13: In file included from include/linux/acpi.h:14: In file included from include/linux/device.h:31: In file included from include/linux/device/devres.h:7: In file included from include/linux/io.h:14: In file included from arch/powerpc/include/asm/io.h:274: >> arch/powerpc/include/asm/eeh.h:304:45: warning: declaration of 'struct iommu_group' will not be visible outside of this function [-Wvisibility] struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group); ^ drivers/input/touchscreen/mms114.c:507:15: warning: cast to smaller integer type 'enum mms_type' from 'const void *' [-Wvoid-pointer-to-enum-cast] data->type = (enum mms_type)match_data; ^~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. -- In file included from drivers/input/touchscreen/wdt87xx_i2c.c:12: In file included from include/linux/i2c.h:13: In file included from include/linux/acpi.h:14: In file included from include/linux/device.h:31: In file included from include/linux/device/devres.h:7: In file included from include/linux/io.h:14: In file included from arch/powerpc/include/asm/io.h:274: >> arch/powerpc/include/asm/eeh.h:304:45: warning: declaration of 'struct iommu_group' will not be visible outside of this function [-Wvisibility] struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group); ^ drivers/input/touchscreen/wdt87xx_i2c.c:1156:36: warning: unused variable 'wdt87xx_acpi_id' [-Wunused-const-variable] static const struct acpi_device_id wdt87xx_acpi_id[] = { ^ 2 warnings generated. vim +304 arch/powerpc/include/asm/eeh.h 55037d176107c3 arch/powerpc/include/asm/eeh.h Gavin Shan 2012-09-07 292 c44e4ccadaca58 arch/powerpc/include/asm/eeh.h Sam Bobroff 2019-08-16 293 void eeh_show_enabled(void); d125aedb404204 arch/powerpc/include/asm/eeh.h Oliver O'Halloran 2020-09-18 294 int __init eeh_init(struct eeh_ops *ops); 3e938052fb7655 arch/powerpc/include/asm/eeh.h Gavin Shan 2014-09-30 295 int eeh_check_failure(const volatile void __iomem *token); f8f7d63fd96ead arch/powerpc/include/asm/eeh.h Gavin Shan 2012-09-07 296 int eeh_dev_check_failure(struct eeh_dev *edev); 685a0bc00abcf1 arch/powerpc/include/asm/eeh.h Sam Bobroff 2019-08-16 297 void eeh_addr_cache_init(void); e86350f70a02e5 arch/powerpc/include/asm/eeh.h Oliver O'Halloran 2020-03-06 298 void eeh_probe_device(struct pci_dev *pdev); 807a827d4e7455 arch/powerpc/include/asm/eeh.h Gavin Shan 2013-07-24 299 void eeh_remove_device(struct pci_dev *); 188fdea69fa91d arch/powerpc/include/asm/eeh.h Sam Bobroff 2018-11-29 300 int eeh_unfreeze_pe(struct eeh_pe *pe); 5cfb20b96f624e arch/powerpc/include/asm/eeh.h Gavin Shan 2014-09-30 301 int eeh_pe_reset_and_recover(struct eeh_pe *pe); 212d16cdca2d0f arch/powerpc/include/asm/eeh.h Gavin Shan 2014-06-10 302 int eeh_dev_open(struct pci_dev *pdev); 212d16cdca2d0f arch/powerpc/include/asm/eeh.h Gavin Shan 2014-06-10 303 void eeh_dev_release(struct pci_dev *pdev); 212d16cdca2d0f arch/powerpc/include/asm/eeh.h Gavin Shan 2014-06-10 @304 struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group); 212d16cdca2d0f arch/powerpc/include/asm/eeh.h Gavin Shan 2014-06-10 305 int eeh_pe_set_option(struct eeh_pe *pe, int option); 212d16cdca2d0f arch/powerpc/include/asm/eeh.h Gavin Shan 2014-06-10 306 int eeh_pe_get_state(struct eeh_pe *pe); 1ef52073fd25ea arch/powerpc/include/asm/eeh.h Sam Bobroff 2018-11-29 307 int eeh_pe_reset(struct eeh_pe *pe, int option, bool include_passed); 212d16cdca2d0f arch/powerpc/include/asm/eeh.h Gavin Shan 2014-06-10 308 int eeh_pe_configure(struct eeh_pe *pe); ec33d36e5ab5d5 arch/powerpc/include/asm/eeh.h Gavin Shan 2015-03-26 309 int eeh_pe_inject_err(struct eeh_pe *pe, int type, int func, ec33d36e5ab5d5 arch/powerpc/include/asm/eeh.h Gavin Shan 2015-03-26 310 unsigned long addr, unsigned long mask); b0e2b828dfca64 arch/powerpc/include/asm/eeh.h Narayana Murty N 2024-09-09 311 int eeh_pe_inject_mmio_error(struct pci_dev *pdev); e2a296eeaa3444 include/asm-powerpc/eeh.h Linas Vepstas 2005-11-03 312 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki