From: kernel test robot <lkp@intel.com>
To: Maxime Ripard <maxime@cerno.tech>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org, Sasha Levin <sashal@kernel.org>,
Dave Stevenson <dave.stevenson@raspberrypi.com>
Subject: [linux-stable-rc:queue/5.10 199/544] drivers/gpu/drm/vc4/vc4_dsi.c:617:35: warning: unused variable 'dsi0_regs'
Date: Tue, 16 Aug 2022 15:54:47 +0800 [thread overview]
Message-ID: <202208161526.UJs2840c-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.10
head: b1f7647ff950714d3eb2ef0f32c7f84050dd6192
commit: 8402723ecfe0a2b2f8d4934794a45b1132689255 [199/544] drm/vc4: dsi: Introduce a variant structure
config: arm64-randconfig-r022-20220815 (https://download.01.org/0day-ci/archive/20220816/202208161526.UJs2840c-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6afcc4a459ead8809a0d6d9b4bf7b64bcc13582b)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=8402723ecfe0a2b2f8d4934794a45b1132689255
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 queue/5.10
git checkout 8402723ecfe0a2b2f8d4934794a45b1132689255
# 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=arm64 SHELL=/bin/bash drivers/gpu/drm/vc4/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
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 <eric@anholt.net>
:::::: CC: Eric Anholt <eric@anholt.net>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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