Hi Thierry, [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v4.11 next-20170504] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Thierry-Escande/v4l2-Add-support-for-go2001-PCI-codec-driver/20170505-011213 base: git://linuxtv.org/media_tree.git master config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/media//pci/go2001/go2001_hw.c: In function 'go2001_map_buffer': >> drivers/media//pci/go2001/go2001_hw.c:934:3: error: implicit declaration of function 'dma_cache_sync' [-Werror=implicit-function-declaration] dma_cache_sync(dev, dma_desc->mmap_list, dma_desc->list_size, ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/dma_cache_sync +934 drivers/media//pci/go2001/go2001_hw.c 928 list_desc->entry_count = dma_desc->num_entries; 929 list_desc->mmap_list_addr = dma_desc->dma_addr; 930 931 go2001_dbg(gdev, 4, "Mapping plane %u: 0x%08llx, chunks: %d in HW\n", 932 i, dma_desc->map_addr, dma_desc->num_entries); 933 go2001_print_mmap_list(gdev, dma_desc); > 934 dma_cache_sync(dev, dma_desc->mmap_list, dma_desc->list_size, 935 DMA_TO_DEVICE); 936 } 937 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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