Re: [PATCH v4 1/3] virtio: add dma-buf support for exported objects

[kbuild test robot <lkp@intel.com>]

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In-Reply-To: <20200526105811.30784-2-stevensd@chromium.org>
References: <20200526105811.30784-2-stevensd@chromium.org>
TO: David Stevens <stevensd@chromium.org>
TO: Gerd Hoffmann <kraxel@redhat.com>
TO: David Airlie <airlied@linux.ie>
TO: Daniel Vetter <daniel@ffwll.ch>
TO: Sumit Semwal <sumit.semwal@linaro.org>
CC: "Michael S . Tsirkin" <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
CC: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
CC: Maxime Ripard <mripard@kernel.org>
CC: Thomas Zimmermann <tzimmermann@suse.de>
CC: David Stevens <stevensd@chromium.org>

Hi David,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20200525]
[also build test WARNING on v5.7-rc7]
[cannot apply to linus/master v5.7-rc7 v5.7-rc6 v5.7-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/David-Stevens/Support-virtio-cross-device-resources/20200526-190644
base:    7b4cb0a48db03a67d1ce21c4f97b1508a241a2e7
config: x86_64-randconfig-a002-20200531 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 2388a096e7865c043e83ece4e26654bd3d1a20d5)
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: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/virtio/virtio_dma_buf.o: warning: objtool: __llvm_gcov_writeout()+0x0: call without frame pointer save/setup
>> drivers/virtio/virtio_dma_buf.o: warning: objtool: __llvm_gcov_reset()+0x0: call without frame pointer save/setup
>> drivers/virtio/virtio_dma_buf.o: warning: objtool: __llvm_gcov_flush()+0x0: call without frame pointer save/setup
>> drivers/virtio/virtio_dma_buf.o: warning: objtool: __llvm_gcov_init()+0x0: call without frame pointer save/setup

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

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