Re: [Intel-gfx] [PATCH 2/3] dma-buf: Use struct dma_buf_map in dma_buf_vmap() interfaces

From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [Intel-gfx] [PATCH 2/3] dma-buf: Use struct dma_buf_map in dma_buf_vmap() interfaces
Date: Tue, 15 Sep 2020 02:33:39 +0800	[thread overview]
Message-ID: <202009150228.rnnaoX6T%lkp@intel.com> (raw)
In-Reply-To: <20200914112521.1327-3-tzimmermann@suse.de>

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Hi Thomas,

I love your patch! Yet something to improve:

[auto build test ERROR on next-20200914]
[also build test ERROR on v5.9-rc5]
[cannot apply to linuxtv-media/master drm-intel/for-linux-next tegra/for-next linus/master v5.9-rc5 v5.9-rc4 v5.9-rc3]
[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/Thomas-Zimmermann/dma-buf-Flag-vmap-ed-memory-as-system-or-I-O-memory/20200914-192712
base:    f965d3ec86fa89285db0fbb983da76ba9c398efa
config: x86_64-randconfig-a004-20200913 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2c32c90bab09a6e2c1f370429db26017a182143)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All errors (new ones prefixed by >>):

>> drivers/dma-buf/heaps/heap-helpers.c:269:10: error: incompatible function pointer types initializing 'int (*)(struct dma_buf *, struct dma_buf_map *)' with an expression of type 'void *(struct dma_buf *)' [-Werror,-Wincompatible-function-pointer-types]
           .vmap = dma_heap_dma_buf_vmap,
                   ^~~~~~~~~~~~~~~~~~~~~
   1 error generated.

# https://github.com/0day-ci/linux/commit/b9513704e28f25636f00827154183df60a80d95c
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Thomas-Zimmermann/dma-buf-Flag-vmap-ed-memory-as-system-or-I-O-memory/20200914-192712
git checkout b9513704e28f25636f00827154183df60a80d95c
vim +269 drivers/dma-buf/heaps/heap-helpers.c

5248eb12fea890a John Stultz 2019-12-03  259  
5248eb12fea890a John Stultz 2019-12-03  260  const struct dma_buf_ops heap_helper_ops = {
5248eb12fea890a John Stultz 2019-12-03  261  	.map_dma_buf = dma_heap_map_dma_buf,
5248eb12fea890a John Stultz 2019-12-03  262  	.unmap_dma_buf = dma_heap_unmap_dma_buf,
5248eb12fea890a John Stultz 2019-12-03  263  	.mmap = dma_heap_mmap,
5248eb12fea890a John Stultz 2019-12-03  264  	.release = dma_heap_dma_buf_release,
5248eb12fea890a John Stultz 2019-12-03  265  	.attach = dma_heap_attach,
5248eb12fea890a John Stultz 2019-12-03  266  	.detach = dma_heap_detach,
5248eb12fea890a John Stultz 2019-12-03  267  	.begin_cpu_access = dma_heap_dma_buf_begin_cpu_access,
5248eb12fea890a John Stultz 2019-12-03  268  	.end_cpu_access = dma_heap_dma_buf_end_cpu_access,
5248eb12fea890a John Stultz 2019-12-03 @269  	.vmap = dma_heap_dma_buf_vmap,

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

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