linux-kernel - Re: [PATCH] [media] v4l2: Add support for go2001 PCI codec driver

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Date:   Fri, 5 May 2017 14:48:31 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Thierry Escande <thierry.escande@...labora.com>
Cc:     kbuild-all@...org, Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] v4l2: Add support for go2001 PCI codec driver

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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