linux-kernel - Re: [PATCH v3] dma-buf: Add DmaBufTotal counter in meminfo

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Date:   Sat, 17 Apr 2021 04:10:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peter Enderborg <peter.enderborg@...y.com>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Muchun Song <songmuchun@...edance.com>,
        Roman Gushchin <guro@...com>,
        Shakeel Butt <shakeelb@...gle.com>
Cc:     kbuild-all@...ts.01.org,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: [PATCH v3] dma-buf: Add DmaBufTotal counter in meminfo

Hi Peter,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.12-rc7 next-20210416]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Peter-Enderborg/dma-buf-Add-DmaBufTotal-counter-in-meminfo/20210417-001040
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5e46d1b78a03d52306f21f77a4e4a144b6d31486
config: m68k-randconfig-p002-20210416 (attached as .config)
compiler: m68k-linux-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
        # https://github.com/0day-ci/linux/commit/e8eb2093e4218ac48426a9e06dc0153577f088fd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Peter-Enderborg/dma-buf-Add-DmaBufTotal-counter-in-meminfo/20210417-001040
        git checkout e8eb2093e4218ac48426a9e06dc0153577f088fd
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/dma-buf/dma-buf.c:1356: warning: expecting prototype for dma_buf_get_size(). Prototype was for dma_buf_allocated_pages() instead


vim +1356 drivers/dma-buf/dma-buf.c

  1351	
  1352	/**
  1353	 * dma_buf_get_size - Return the used nr pages by dma-buf
  1354	 */
  1355	long dma_buf_allocated_pages(void)
> 1356	{
  1357		return atomic_long_read(&dma_buf_global_allocated) >> PAGE_SHIFT;
  1358	}
  1359	EXPORT_SYMBOL_GPL(dma_buf_allocated_pages);
  1360	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (37488 bytes)