[kbuild-all] [tglx-devel:highmem 17/18] include/linux/highmem.h:265:2: error: implicit declaration of function '__kunmap_local'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git highmem head: 4025d33ae44c6f748765f64dcb1c97ed4b55e756 commit: eb739dc8f2b6808531c2f47bad9cb3f29c040ae2 [17/18] mm/highmem: Provide kmap_local* config: arm-randconfig-r005-20201030 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project fa5a13276764a2657b3571fa3c57b07ee5d2d661) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id... git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git git fetch --no-tags tglx-devel highmem git checkout eb739dc8f2b6808531c2f47bad9cb3f29c040ae2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from fs/open.c:16: In file included from include/linux/backing-dev.h:15: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ 2 errors generated. -- In file included from fs/aio.c:21: In file included from include/linux/backing-dev.h:15: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ In file included from fs/aio.c:29: include/linux/mman.h:156:9: warning: division by zero is undefined [-Wdivision-by-zero] _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mman.h:133:21: note: expanded from macro '_calc_vm_trans' : ((x) & (bit1)) / ((bit1) / (bit2)))) ^ ~~~~~~~~~~~~~~~~~ 1 warning and 2 errors generated. -- In file included from fs/io-wq.c:20: In file included from include/linux/blk-cgroup.h:23: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ In file included from fs/io-wq.c:24: fs/../kernel/sched/sched.h:1059:5: warning: 'CONFIG_SMP' is not defined, evaluates to 0 [-Wundef] #if CONFIG_SMP ^ 1 warning and 2 errors generated. -- In file included from drivers/ata/ahci_ceva.c:11: In file included from include/linux/libata.h:21: In file included from include/scsi/scsi_host.h:11: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ drivers/ata/ahci_ceva.c:187:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:387:16: note: expanded from macro 'AHCI_SHT' .can_queue = AHCI_MAX_CMDS, \ ^~~~~~~~~~~~~ drivers/ata/ahci_ceva.c:187:2: note: previous initialization is here AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:386:2: note: expanded from macro 'AHCI_SHT' ATA_NCQ_SHT(drv_name), \ ^~~~~~~~~~~~~~~~~~~~~ include/linux/libata.h:1418:2: note: expanded from macro 'ATA_NCQ_SHT' __ATA_BASE_SHT(drv_name), \ ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/libata.h:1400:16: note: expanded from macro '__ATA_BASE_SHT' .can_queue = ATA_DEF_QUEUE, \ ^~~~~~~~~~~~~ drivers/ata/ahci_ceva.c:187:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:391:17: note: expanded from macro 'AHCI_SHT' .sdev_attrs = ahci_sdev_attrs ^~~~~~~~~~~~~~~ drivers/ata/ahci_ceva.c:187:2: note: previous initialization is here AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:386:2: note: expanded from macro 'AHCI_SHT' ATA_NCQ_SHT(drv_name), \ ^~~~~~~~~~~~~~~~~~~~~ include/linux/libata.h:1419:17: note: expanded from macro 'ATA_NCQ_SHT' .sdev_attrs = ata_ncq_sdev_attrs, \ ^~~~~~~~~~~~~~~~~~ 2 warnings and 2 errors generated. -- In file included from drivers/ata/libahci_platform.c:19: In file included from include/linux/libata.h:21: In file included from include/scsi/scsi_host.h:11: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ rc = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 1 warning and 2 errors generated. -- In file included from drivers/ata/ahci_qoriq.c:19: In file included from include/linux/libata.h:21: In file included from include/scsi/scsi_host.h:11: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ drivers/ata/ahci_qoriq.c:167:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:387:16: note: expanded from macro 'AHCI_SHT' .can_queue = AHCI_MAX_CMDS, \ ^~~~~~~~~~~~~ drivers/ata/ahci_qoriq.c:167:2: note: previous initialization is here AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:386:2: note: expanded from macro 'AHCI_SHT' ATA_NCQ_SHT(drv_name), \ ^~~~~~~~~~~~~~~~~~~~~ include/linux/libata.h:1418:2: note: expanded from macro 'ATA_NCQ_SHT' __ATA_BASE_SHT(drv_name), \ ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/libata.h:1400:16: note: expanded from macro '__ATA_BASE_SHT' .can_queue = ATA_DEF_QUEUE, \ ^~~~~~~~~~~~~ drivers/ata/ahci_qoriq.c:167:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:391:17: note: expanded from macro 'AHCI_SHT' .sdev_attrs = ahci_sdev_attrs ^~~~~~~~~~~~~~~ drivers/ata/ahci_qoriq.c:167:2: note: previous initialization is here AHCI_SHT(DRV_NAME), ^~~~~~~~~~~~~~~~~~ drivers/ata/ahci.h:386:2: note: expanded from macro 'AHCI_SHT' ATA_NCQ_SHT(drv_name), \ ^~~~~~~~~~~~~~~~~~~~~ include/linux/libata.h:1419:17: note: expanded from macro 'ATA_NCQ_SHT' .sdev_attrs = ata_ncq_sdev_attrs, \ ^~~~~~~~~~~~~~~~~~ 2 warnings and 2 errors generated. -- In file included from drivers/virtio/virtio_mmio.c:59: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ drivers/virtio/virtio_mmio.c:618:46: warning: shift count >= width of type [-Wshift-count-overflow] rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 2 warnings and 2 errors generated. -- In file included from drivers/gpu/drm/vgem/vgem_drv.c:36: In file included from include/linux/shmem_fs.h:6: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:22: In file included from include/linux/writeback.h:14: In file included from include/linux/blk-cgroup.h:23: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 1 warning and 2 errors generated. -- In file included from fs/xfs/scrub/agheader.c:6: In file included from fs/xfs/xfs.h:22: In file included from fs/xfs/xfs_linux.h:31: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ XFS_SB_VERSION_EXTFLGBIT | ~~~~~~~~~~~~~~~~~~~~~~~~~^ include/linux/byteorder/generic.h:96:21: note: expanded from macro 'cpu_to_be16' #define cpu_to_be16 __cpu_to_be16 ^ include/uapi/linux/byteorder/little_endian.h:41:53: note: expanded from macro '__cpu_to_be16' #define __cpu_to_be16(x) ((__force __be16)__swab16((x))) ~~~~~~~~~~^~~ include/uapi/linux/swab.h:107:12: note: expanded from macro '__swab16' __fswab16(x)) ~~~~~~~~~ ^ 1 warning and 2 errors generated. -- In file included from fs/proc/meminfo.c:12: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:22: In file included from include/linux/writeback.h:14: In file included from include/linux/blk-cgroup.h:23: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ fs/proc/meminfo.c:22:28: warning: no previous prototype for function 'arch_report_meminfo' [-Wmissing-prototypes] void __attribute__((weak)) arch_report_meminfo(struct seq_file *m) ^ fs/proc/meminfo.c:22:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __attribute__((weak)) arch_report_meminfo(struct seq_file *m) ^ static 1 warning and 2 errors generated. -- In file included from fs/kernfs/file.c:14: In file included from include/linux/pagemap.h:11: __kunmap_local(addr); ^ include/linux/highmem.h:284:20: error: static declaration of '__kunmap_local' follows non-static declaration static inline void __kunmap_local(void *addr) ^ include/linux/highmem.h:265:2: note: previous implicit declaration is here __kunmap_local(addr); ^ fs/kernfs/file.c:127:15: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return NULL + !*ppos; ~~~~ ^ 1 warning and 2 errors generated. .. vim +/__kunmap_local +265 include/linux/highmem.h 262 263 static inline void __kunmap_atomic(void *addr) 264 { 266 } 267 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org