tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git highmem head: 210d140cedbae8ce366294260c91ec16a3981630 commit: feccfc3b3f02a2b1f3c93bc9a5d1edb1c3436ab2 [5/15] ARM: highmem: Switch to generic kmap atomic config: arm-multi_v5_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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 git checkout feccfc3b3f02a2b1f3c93bc9a5d1edb1c3436ab2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 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 errors (new ones prefixed by >>): In file included from include/linux/highmem.h:50, from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from include/linux/backing-dev.h:15, from fs/open.c:16: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from include/linux/backing-dev.h:15, from fs/open.c:16: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from include/linux/backing-dev.h:15, from fs/open.c:16: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed cc1: some warnings being treated as errors -- In file included from include/linux/highmem.h:50, from fs/pipe.c:21: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from fs/pipe.c:21: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from fs/pipe.c:21: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed fs/pipe.c: At top level: fs/pipe.c:760:15: warning: no previous prototype for 'account_pipe_buffers' [-Wmissing-prototypes] 760 | unsigned long account_pipe_buffers(struct user_struct *user, | ^~~~~~~~~~~~~~~~~~~~ fs/pipe.c:766:6: warning: no previous prototype for 'too_many_pipe_buffers_soft' [-Wmissing-prototypes] 766 | bool too_many_pipe_buffers_soft(unsigned long user_bufs) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ fs/pipe.c:773:6: warning: no previous prototype for 'too_many_pipe_buffers_hard' [-Wmissing-prototypes] 773 | bool too_many_pipe_buffers_hard(unsigned long user_bufs) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ fs/pipe.c:780:6: warning: no previous prototype for 'pipe_is_unprivileged_user' [-Wmissing-prototypes] 780 | bool pipe_is_unprivileged_user(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ fs/pipe.c:1211:5: warning: no previous prototype for 'pipe_resize_ring' [-Wmissing-prototypes] 1211 | int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots) | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/highmem.h:50, from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from include/linux/blk-cgroup.h:23, from include/linux/writeback.h:14, from include/linux/memcontrol.h:22, from include/linux/swap.h:9, from fs/proc/meminfo.c:12: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from include/linux/blk-cgroup.h:23, from include/linux/writeback.h:14, from include/linux/memcontrol.h:22, from include/linux/swap.h:9, from fs/proc/meminfo.c:12: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from include/linux/blk-cgroup.h:23, from include/linux/writeback.h:14, from include/linux/memcontrol.h:22, from include/linux/swap.h:9, from fs/proc/meminfo.c:12: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed fs/proc/meminfo.c: At top level: fs/proc/meminfo.c:22:28: warning: no previous prototype for 'arch_report_meminfo' [-Wmissing-prototypes] 22 | void __attribute__((weak)) arch_report_meminfo(struct seq_file *m) | ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/highmem.h:50, from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from fs/ext4/super.c:27: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from fs/ext4/super.c:27: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/blkdev.h:13, from fs/ext4/super.c:27: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed fs/ext4/super.c: In function 'ext4_remount': fs/ext4/super.c:5531:6: warning: variable 'enable_quota' set but not used [-Wunused-but-set-variable] 5531 | int enable_quota = 0; | ^~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/highmem.h:50, from include/linux/pagemap.h:11, from fs/jffs2/nodelist.c:20: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from fs/jffs2/nodelist.c:20: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from fs/jffs2/nodelist.c:20: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed fs/jffs2/nodelist.c: In function 'jffs2_add_frag_to_fragtree': fs/jffs2/nodelist.c:255:37: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] 255 | this->ofs, this->ofs + this->size); | ^ fs/jffs2/nodelist.c:278:38: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] 278 | this->ofs, this->ofs+this->size); | ^ fs/jffs2/nodelist.c: In function 'jffs2_lookup_node_frag': fs/jffs2/nodelist.c:558:52: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] 558 | dbg_fragtree2("returning NULL, empty fragtree\n"); | ^ cc1: some warnings being treated as errors -- In file included from include/linux/highmem.h:50, from include/linux/pagemap.h:11, from fs/jffs2/scan.c:18: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from fs/jffs2/scan.c:18: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from fs/jffs2/scan.c:18: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed fs/jffs2/scan.c: In function 'jffs2_scan_eraseblock': fs/jffs2/scan.c:893:60: warning: suggest braces around empty body in an 'if' statement [-Wempty-body] 893 | jffs2_sum_add_padding_mem(s, je32_to_cpu(node->totlen)); | ^ cc1: some warnings being treated as errors -- In file included from include/linux/highmem.h:50, from include/linux/pagemap.h:11, from include/linux/nfs_fs.h:24, from fs/nfs/nfstrace.c:5: 53 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/nfs_fs.h:24, from fs/nfs/nfstrace.c:5: include/linux/highmem.h:42:21: note: previous definition of 'arch_kmap_temporary_high_get' was here 42 | static inline void *arch_kmap_temporary_high_get(struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/pagemap.h:11, from include/linux/nfs_fs.h:24, from fs/nfs/nfstrace.c:5: include/linux/highmem.h: In function '__kunmap_atomic': include/linux/highmem.h:132:2: error: implicit declaration of function 'kumap_atomic_indexed'; did you mean 'kunmap_atomic_indexed'? [-Werror=implicit-function-declaration] 132 | kumap_atomic_indexed(addr); | ^~~~~~~~~~~~~~~~~~~~ | kunmap_atomic_indexed In file included from fs/nfs/nfstrace.h:1444, from fs/nfs/nfstrace.c:10: include/trace/define_trace.h: At top level: include/trace/define_trace.h:95:42: fatal error: ./nfstrace.h: No such file or directory 95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | ^ cc1: some warnings being treated as errors compilation terminated. # 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 feccfc3b3f02a2b1f3c93bc9a5d1edb1c3436ab2 vim +/arch_kmap_temporary_high_get +53 arch/arm/include/asm/highmem.h 49 50 #ifdef CONFIG_DEBUG_HIGHMEM 51 extern void *arch_kmap_temporary_high_get(struct page *page); 52 #else 54 { 55 return kmap_high_get(page); 56 } 57 #endif /* !CONFIG_DEBUG_HIGHMEM */ 58 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org