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Date: Fri, 20 Nov 2020 02:29:09 +0800
From: kernel test robot <lkp@...el.com>
To: Robin Murphy <robin.murphy@....com>
Cc: kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
linux-kernel@...r.kernel.org, Joerg Roedel <jroedel@...e.de>
Subject: drivers/gpu/drm/rockchip/rockchip_vop_reg.c:1029:34: warning: unused
variable 'vop_driver_dt_match'
Hi Robin,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c2e7554e1b85935d962127efa3c2a76483b0b3b6
commit: b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248 iommu: Tidy up Kconfig for SoC IOMMUs
date: 4 months ago
config: x86_64-randconfig-a011-20201118 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2613fb2f0f53691dd0211895afbb9413457fca7)
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
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248
# 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@...el.com>
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/rockchip/rockchip_vop_reg.c:1029:34: warning: unused variable 'vop_driver_dt_match' [-Wunused-const-variable]
static const struct of_device_id vop_driver_dt_match[] = {
^
1 warning generated.
--
>> drivers/gpu/drm/rockchip/analogix_dp-rockchip.c:457:34: warning: unused variable 'rockchip_dp_dt_ids' [-Wunused-const-variable]
static const struct of_device_id rockchip_dp_dt_ids[] = {
^
1 warning generated.
--
>> drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids' [-Wunused-const-variable]
static const struct of_device_id cdn_dp_dt_ids[] = {
^
1 warning generated.
vim +/vop_driver_dt_match +1029 drivers/gpu/drm/rockchip/rockchip_vop_reg.c
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1028
a67719d182291bf Mark Yao 2015-12-15 @1029 static const struct of_device_id vop_driver_dt_match[] = {
f7673453506035a Mark Yao 2015-12-15 1030 { .compatible = "rockchip,rk3036-vop",
f7673453506035a Mark Yao 2015-12-15 1031 .data = &rk3036_vop },
460c3b0029923a4 Sandy Huang 2017-11-14 1032 { .compatible = "rockchip,rk3126-vop",
460c3b0029923a4 Sandy Huang 2017-11-14 1033 .data = &rk3126_vop },
570913e0b1bebec Sandy Huang 2018-06-26 1034 { .compatible = "rockchip,px30-vop-big",
570913e0b1bebec Sandy Huang 2018-06-26 1035 .data = &px30_vop_big },
570913e0b1bebec Sandy Huang 2018-06-26 1036 { .compatible = "rockchip,px30-vop-lit",
570913e0b1bebec Sandy Huang 2018-06-26 1037 .data = &px30_vop_lit },
f4a6de855eae10b Mark Yao 2018-12-29 1038 { .compatible = "rockchip,rk3066-vop",
f4a6de855eae10b Mark Yao 2018-12-29 1039 .data = &rk3066_vop },
428e15cc41e3603 Heiko Stuebner 2018-08-30 1040 { .compatible = "rockchip,rk3188-vop",
428e15cc41e3603 Heiko Stuebner 2018-08-30 1041 .data = &rk3188_vop },
b51502add7afc5a Mark Yao 2016-08-15 1042 { .compatible = "rockchip,rk3288-vop",
b51502add7afc5a Mark Yao 2016-08-15 1043 .data = &rk3288_vop },
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1044 { .compatible = "rockchip,rk3368-vop",
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1045 .data = &rk3368_vop },
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1046 { .compatible = "rockchip,rk3366-vop",
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1047 .data = &rk3366_vop },
0a63bfd046bbc88 Mark Yao 2016-04-20 1048 { .compatible = "rockchip,rk3399-vop-big",
0a63bfd046bbc88 Mark Yao 2016-04-20 1049 .data = &rk3399_vop_big },
0a63bfd046bbc88 Mark Yao 2016-04-20 1050 { .compatible = "rockchip,rk3399-vop-lit",
0a63bfd046bbc88 Mark Yao 2016-04-20 1051 .data = &rk3399_vop_lit },
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1052 { .compatible = "rockchip,rk3228-vop",
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1053 .data = &rk3228_vop },
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1054 { .compatible = "rockchip,rk3328-vop",
eb5cb6aa9a72a7c Mark Yao 2017-07-26 1055 .data = &rk3328_vop },
a67719d182291bf Mark Yao 2015-12-15 1056 {},
a67719d182291bf Mark Yao 2015-12-15 1057 };
a67719d182291bf Mark Yao 2015-12-15 1058 MODULE_DEVICE_TABLE(of, vop_driver_dt_match);
a67719d182291bf Mark Yao 2015-12-15 1059
:::::: The code at line 1029 was first introduced by commit
:::::: a67719d182291bf62c6093545b9af27f0431cbeb drm/rockchip: vop: spilt register related into rockchip_reg_vop.c
:::::: TO: Mark Yao <mark.yao@...k-chips.com>
:::::: CC: Mark Yao <mark.yao@...k-chips.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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