tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y head: 4a77e6ef2057d9d4e2e1df3f7739622477e8738d commit: 6cc1edddcf02f69664887ea7ed4b604481ae300e [7638/8493] drm/vc4: dsi: Introduce a variant structure config: riscv-randconfig-r002-20220925 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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/stable/linux-stable-rc.git/commit/?id=6cc1edddcf02f69664887ea7ed4b604481ae300e git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.10.y git checkout 6cc1edddcf02f69664887ea7ed4b604481ae300e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/gpu/drm/vc4/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/gpu/drm/vc4/vc4_dsi.c:617:35: warning: unused variable 'dsi0_regs' [-Wunused-const-variable] static const struct debugfs_reg32 dsi0_regs[] = { ^ 1 warning generated. vim +/dsi0_regs +617 drivers/gpu/drm/vc4/vc4_dsi.c 4078f575714423 Eric Anholt 2017-01-31 616 3051719af11eb4 Eric Anholt 2019-02-20 @617 static const struct debugfs_reg32 dsi0_regs[] = { 3051719af11eb4 Eric Anholt 2019-02-20 618 VC4_REG32(DSI0_CTRL), 3051719af11eb4 Eric Anholt 2019-02-20 619 VC4_REG32(DSI0_STAT), 3051719af11eb4 Eric Anholt 2019-02-20 620 VC4_REG32(DSI0_HSTX_TO_CNT), 3051719af11eb4 Eric Anholt 2019-02-20 621 VC4_REG32(DSI0_LPRX_TO_CNT), 3051719af11eb4 Eric Anholt 2019-02-20 622 VC4_REG32(DSI0_TA_TO_CNT), 3051719af11eb4 Eric Anholt 2019-02-20 623 VC4_REG32(DSI0_PR_TO_CNT), 3051719af11eb4 Eric Anholt 2019-02-20 624 VC4_REG32(DSI0_DISP0_CTRL), 3051719af11eb4 Eric Anholt 2019-02-20 625 VC4_REG32(DSI0_DISP1_CTRL), 3051719af11eb4 Eric Anholt 2019-02-20 626 VC4_REG32(DSI0_INT_STAT), 3051719af11eb4 Eric Anholt 2019-02-20 627 VC4_REG32(DSI0_INT_EN), 3051719af11eb4 Eric Anholt 2019-02-20 628 VC4_REG32(DSI0_PHYC), 3051719af11eb4 Eric Anholt 2019-02-20 629 VC4_REG32(DSI0_HS_CLT0), 3051719af11eb4 Eric Anholt 2019-02-20 630 VC4_REG32(DSI0_HS_CLT1), 3051719af11eb4 Eric Anholt 2019-02-20 631 VC4_REG32(DSI0_HS_CLT2), 3051719af11eb4 Eric Anholt 2019-02-20 632 VC4_REG32(DSI0_HS_DLT3), 3051719af11eb4 Eric Anholt 2019-02-20 633 VC4_REG32(DSI0_HS_DLT4), 3051719af11eb4 Eric Anholt 2019-02-20 634 VC4_REG32(DSI0_HS_DLT5), 3051719af11eb4 Eric Anholt 2019-02-20 635 VC4_REG32(DSI0_HS_DLT6), 3051719af11eb4 Eric Anholt 2019-02-20 636 VC4_REG32(DSI0_HS_DLT7), 3051719af11eb4 Eric Anholt 2019-02-20 637 VC4_REG32(DSI0_PHY_AFEC0), 3051719af11eb4 Eric Anholt 2019-02-20 638 VC4_REG32(DSI0_PHY_AFEC1), 3051719af11eb4 Eric Anholt 2019-02-20 639 VC4_REG32(DSI0_ID), 4078f575714423 Eric Anholt 2017-01-31 640 }; 4078f575714423 Eric Anholt 2017-01-31 641 :::::: The code at line 617 was first introduced by commit :::::: 3051719af11eb48dc8947826cfb66dbe0f281c7d drm/vc4: Use drm_print_regset32() for our debug register dumping. :::::: TO: Eric Anholt :::::: CC: Eric Anholt -- 0-DAY CI Kernel Test Service https://01.org/lkp