On Tue, Oct 19, 2021 at 9:40 AM kernel test robot <yujie.liu@xxxxxxxxx> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 7c832d2f9b959e3181370c8b0dacaf9efe13fc05 > commit: 8cdc3794b2e34b3ee11ddfccf4af3f64344a1a75 [4131/8410] media: mtk-vcodec: vdec: support stateless API > config: riscv-randconfig-c006-20211017 (attached as .config) > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 8ca4b3ef19fe82d7ad6a6e1515317dcc01b41515) > 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 riscv cross compiling tool for clang build > # apt-get install binutils-riscv64-linux-gnu > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=8cdc3794b2e34b3ee11ddfccf4af3f64344a1a75 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 8cdc3794b2e34b3ee11ddfccf4af3f64344a1a75 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv clang-analyzer > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > > clang-analyzer warnings: (new ones prefixed by >>) > > >> drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c:133:18: warning: Value stored to 'pfb' during its initialization is never read [clang-analyzer-deadcode.DeadStores] > struct vdec_fb *pfb = &framebuf->frame_buffer; > ^~~ ~~~~~~~~~~~~~~~~~~~~~~~ Proposed a fix: https://patchwork.linuxtv.org/project/linux-media/patch/20211019085244.1403-1-tzungbi@xxxxxxxxxx/
