tree: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git dma-sync-rework head: 9a711fbea373208c1eeb2fafb0c744bc23a79a43 commit: 9a711fbea373208c1eeb2fafb0c744bc23a79a43 [20/20] dma-mapping: replace custom code with generic implementation config: csky-defconfig (https://download.01.org/0day-ci/archive/20230324/202303242224.lSidB94K-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 12.1.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git/commit/?id=9a711fbea373208c1eeb2fafb0c744bc23a79a43 git remote add arnd-asm-generic https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git git fetch --no-tags arnd-asm-generic dma-sync-rework git checkout 9a711fbea373208c1eeb2fafb0c744bc23a79a43 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=csky olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303242224.lSidB94K-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arch/csky/mm/dma-mapping.c: In function 'arch_dma_cache_inv': >> arch/csky/mm/dma-mapping.c:65:18: error: 'paddr' undeclared (first use in this function) 65 | cache_op(paddr, size, dma_inv_range); | ^~~~~ arch/csky/mm/dma-mapping.c:65:18: note: each undeclared identifier is reported only once for each function it appears in arch/csky/mm/dma-mapping.c: In function 'arch_dma_cache_wback_inv': arch/csky/mm/dma-mapping.c:70:18: error: 'paddr' undeclared (first use in this function) 70 | cache_op(paddr, size, dma_wbinv_range); | ^~~~~ vim +/paddr +65 arch/csky/mm/dma-mapping.c 013de2d6671d89 Guo Ren 2018-09-05 62 9a711fbea37320 Arnd Bergmann 2023-03-22 63 static inline void arch_dma_cache_inv(phys_addr_t start, size_t size) 013de2d6671d89 Guo Ren 2018-09-05 64 { ae76f635d4e1cf Guo Ren 2019-07-30 @65 cache_op(paddr, size, dma_inv_range); 013de2d6671d89 Guo Ren 2018-09-05 66 } 9a711fbea37320 Arnd Bergmann 2023-03-22 67 :::::: The code at line 65 was first introduced by commit :::::: ae76f635d4e1cffa6870cc5472567ca9d6940a22 csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range :::::: TO: Guo Ren <ren_guo@xxxxxxxxx> :::::: CC: Guo Ren <ren_guo@xxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
