linux-kernel - Re: [PATCH 2/2] mm: introduce vma_set

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Date:   Mon, 12 Oct 2020 20:15:19 +0800
From:   kernel test robot <lkp@...el.com>
To:     Christian König 
        <ckoenig.leichtzumerken@...il.com>, akpm@...ux-foundation.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linaro-mm-sig@...ts.linaro.org, dri-devel@...ts.freedesktop.org,
        linux-media@...r.kernel.org, chris@...is-wilson.co.uk,
        airlied@...hat.com, daniel@...ll.ch, sumit.semwal@...aro.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com
Subject: Re: [PATCH 2/2] mm: introduce vma_set_file function v4

Hi "Christian,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on staging/staging-testing linus/master v5.9 next-20201009]
[cannot apply to mmotm/master]
[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/Christian-K-nig/mm-mmap-fix-fput-in-error-path-v2/20201012-165336
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: arm-randconfig-r025-20201012 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9e72d3eaf38f217698f72cb8fdc969a6e72dad3a)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/0day-ci/linux/commit/4ff869f185acba6d9c37ab6abdb0d9f93f31d15b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Christian-K-nig/mm-mmap-fix-fput-in-error-path-v2/20201012-165336
        git checkout 4ff869f185acba6d9c37ab6abdb0d9f93f31d15b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: vma_set_file
   >>> referenced by dma-buf.c
   >>> dma-buf/dma-buf.o:(dma_buf_mmap) in archive drivers/built-in.a

---
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" (32310 bytes)