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* drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids'
@ 2021-09-05  1:01 ` kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-09-05  1:01 UTC (permalink / raw)
  To: Robin Murphy; +Cc: llvm, kbuild-all, linux-kernel, Joerg Roedel

[-- Attachment #1: Type: text/plain, Size: 2554 bytes --]

Hi Robin,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   49624efa65ac9889f4e7c7b2452b2e6ce42ba37d
commit: b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248 iommu: Tidy up Kconfig for SoC IOMMUs
date:   1 year, 2 months ago
config: x86_64-buildonly-randconfig-r006-20210905 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739)
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
        # 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@intel.com>

All warnings (new ones prefixed by >>):

>> 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[] = {
                                    ^
   drivers/gpu/drm/rockchip/cdn-dp-core.c:1123:12: warning: unused function 'cdn_dp_resume' [-Wunused-function]
   static int cdn_dp_resume(struct device *dev)
              ^
   2 warnings generated.


vim +/cdn_dp_dt_ids +54 drivers/gpu/drm/rockchip/cdn-dp-core.c

1a0f7ed3abe29c Chris Zhong 2017-02-05  53  
1a0f7ed3abe29c Chris Zhong 2017-02-05 @54  static const struct of_device_id cdn_dp_dt_ids[] = {
1a0f7ed3abe29c Chris Zhong 2017-02-05  55  	{ .compatible = "rockchip,rk3399-cdn-dp",
1a0f7ed3abe29c Chris Zhong 2017-02-05  56  		.data = (void *)&rk3399_cdn_dp },
1a0f7ed3abe29c Chris Zhong 2017-02-05  57  	{}
1a0f7ed3abe29c Chris Zhong 2017-02-05  58  };
1a0f7ed3abe29c Chris Zhong 2017-02-05  59  

:::::: The code at line 54 was first introduced by commit
:::::: 1a0f7ed3abe29cff8e652c69a8ad89aec2c40f00 drm/rockchip: cdn-dp: add cdn DP support for rk3399

:::::: TO: Chris Zhong <zyw@rock-chips.com>
:::::: CC: Mark Yao <mark.yao@rock-chips.com>

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

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 33572 bytes --]

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids'
@ 2021-09-05  1:01 ` kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-09-05  1:01 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 2609 bytes --]

Hi Robin,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   49624efa65ac9889f4e7c7b2452b2e6ce42ba37d
commit: b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248 iommu: Tidy up Kconfig for SoC IOMMUs
date:   1 year, 2 months ago
config: x86_64-buildonly-randconfig-r006-20210905 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739)
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
        # 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@intel.com>

All warnings (new ones prefixed by >>):

>> 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[] = {
                                    ^
   drivers/gpu/drm/rockchip/cdn-dp-core.c:1123:12: warning: unused function 'cdn_dp_resume' [-Wunused-function]
   static int cdn_dp_resume(struct device *dev)
              ^
   2 warnings generated.


vim +/cdn_dp_dt_ids +54 drivers/gpu/drm/rockchip/cdn-dp-core.c

1a0f7ed3abe29c Chris Zhong 2017-02-05  53  
1a0f7ed3abe29c Chris Zhong 2017-02-05 @54  static const struct of_device_id cdn_dp_dt_ids[] = {
1a0f7ed3abe29c Chris Zhong 2017-02-05  55  	{ .compatible = "rockchip,rk3399-cdn-dp",
1a0f7ed3abe29c Chris Zhong 2017-02-05  56  		.data = (void *)&rk3399_cdn_dp },
1a0f7ed3abe29c Chris Zhong 2017-02-05  57  	{}
1a0f7ed3abe29c Chris Zhong 2017-02-05  58  };
1a0f7ed3abe29c Chris Zhong 2017-02-05  59  

:::::: The code at line 54 was first introduced by commit
:::::: 1a0f7ed3abe29cff8e652c69a8ad89aec2c40f00 drm/rockchip: cdn-dp: add cdn DP support for rk3399

:::::: TO: Chris Zhong <zyw@rock-chips.com>
:::::: CC: Mark Yao <mark.yao@rock-chips.com>

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 33572 bytes --]

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids'
@ 2023-01-19 13:06 kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2023-01-19 13:06 UTC (permalink / raw)
  To: Masahiro Yamada
  Cc: llvm, oe-kbuild-all, linux-kernel, Andrew Morton,
	Linux Memory Management List

Hi Masahiro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7287904c8771b77b9504f53623bb477065c19a58
commit: ea29b20a828511de3348334e529a3d046a180416 init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM
date:   1 year, 10 months ago
config: s390-randconfig-r015-20230119 (https://download.01.org/0day-ci/archive/20230119/202301192035.D1DRWUt4-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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 s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea29b20a828511de3348334e529a3d046a180416
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout ea29b20a828511de3348334e529a3d046a180416
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/gpu/drm/rockchip/ drivers/pci/controller/dwc/ kernel/locking/ sound/soc/codecs/

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 >>):

   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
           ___constant_swab32(x) :                 \
                              ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32'
           (((__u32)(x) & (__u32)0x00ff0000UL) >>  8) |            \
                     ^
   In file included from drivers/gpu/drm/rockchip/cdn-dp-core.c:12:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
           ___constant_swab32(x) :                 \
                              ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32'
           (((__u32)(x) & (__u32)0xff000000UL) >> 24)))
                     ^
   In file included from drivers/gpu/drm/rockchip/cdn-dp-core.c:12:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32'
           __fswab32(x))
                     ^
   In file included from drivers/gpu/drm/rockchip/cdn-dp-core.c:12:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsb(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsw(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsl(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesb(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesw(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesl(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
>> 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[] = {
                                    ^
   drivers/gpu/drm/rockchip/cdn-dp-core.c:1124:12: warning: unused function 'cdn_dp_resume' [-Wunused-function]
   static int cdn_dp_resume(struct device *dev)
              ^
   22 warnings generated.
--
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
           ___constant_swab32(x) :                 \
                              ^
   include/uapi/linux/swab.h:19:12: note: expanded from macro '___constant_swab32'
           (((__u32)(x) & (__u32)0x000000ffUL) << 24) |            \
                     ^
   In file included from drivers/pci/controller/dwc/pcie-armada8k.c:19:
   In file included from include/linux/pci.h:39:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
           ___constant_swab32(x) :                 \
                              ^
   include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32'
           (((__u32)(x) & (__u32)0x0000ff00UL) <<  8) |            \
                     ^
   In file included from drivers/pci/controller/dwc/pcie-armada8k.c:19:
   In file included from include/linux/pci.h:39:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
           ___constant_swab32(x) :                 \
                              ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32'
           (((__u32)(x) & (__u32)0x00ff0000UL) >>  8) |            \
                     ^
   In file included from drivers/pci/controller/dwc/pcie-armada8k.c:19:
   In file included from include/linux/pci.h:39:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
           ___constant_swab32(x) :                 \
                              ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32'
           (((__u32)(x) & (__u32)0xff000000UL) >> 24)))
                     ^
   In file included from drivers/pci/controller/dwc/pcie-armada8k.c:19:
   In file included from include/linux/pci.h:39:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32'
           __fswab32(x))
                     ^
   In file included from drivers/pci/controller/dwc/pcie-armada8k.c:19:
   In file included from include/linux/pci.h:39:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsb(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsw(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsl(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesb(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesw(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesl(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
>> drivers/pci/controller/dwc/pcie-armada8k.c:337:34: warning: unused variable 'armada8k_pcie_of_match' [-Wunused-const-variable]
   static const struct of_device_id armada8k_pcie_of_match[] = {
                                    ^
   21 warnings generated.


vim +/cdn_dp_dt_ids +54 drivers/gpu/drm/rockchip/cdn-dp-core.c

1a0f7ed3abe29c Chris Zhong 2017-02-05  53  
1a0f7ed3abe29c Chris Zhong 2017-02-05 @54  static const struct of_device_id cdn_dp_dt_ids[] = {
1a0f7ed3abe29c Chris Zhong 2017-02-05  55  	{ .compatible = "rockchip,rk3399-cdn-dp",
1a0f7ed3abe29c Chris Zhong 2017-02-05  56  		.data = (void *)&rk3399_cdn_dp },
1a0f7ed3abe29c Chris Zhong 2017-02-05  57  	{}
1a0f7ed3abe29c Chris Zhong 2017-02-05  58  };
1a0f7ed3abe29c Chris Zhong 2017-02-05  59  

:::::: The code at line 54 was first introduced by commit
:::::: 1a0f7ed3abe29cff8e652c69a8ad89aec2c40f00 drm/rockchip: cdn-dp: add cdn DP support for rk3399

:::::: TO: Chris Zhong <zyw@rock-chips.com>
:::::: CC: Mark Yao <mark.yao@rock-chips.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids'
@ 2021-12-15  8:22 ` kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-12-15  8:22 UTC (permalink / raw)
  To: Robin Murphy; +Cc: llvm, kbuild-all, linux-kernel, Joerg Roedel

Hi Robin,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5472f14a37421d1bca3dddf33cabd3bd6dbefbbc
commit: b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248 iommu: Tidy up Kconfig for SoC IOMMUs
date:   1 year, 5 months ago
config: x86_64-buildonly-randconfig-r004-20211215 (https://download.01.org/0day-ci/archive/20211215/202112151637.BKx0hSTS-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c)
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
        # 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 config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/rockchip/ kernel/sched/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> 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 +/cdn_dp_dt_ids +54 drivers/gpu/drm/rockchip/cdn-dp-core.c

1a0f7ed3abe29c Chris Zhong 2017-02-05  53  
1a0f7ed3abe29c Chris Zhong 2017-02-05 @54  static const struct of_device_id cdn_dp_dt_ids[] = {
1a0f7ed3abe29c Chris Zhong 2017-02-05  55  	{ .compatible = "rockchip,rk3399-cdn-dp",
1a0f7ed3abe29c Chris Zhong 2017-02-05  56  		.data = (void *)&rk3399_cdn_dp },
1a0f7ed3abe29c Chris Zhong 2017-02-05  57  	{}
1a0f7ed3abe29c Chris Zhong 2017-02-05  58  };
1a0f7ed3abe29c Chris Zhong 2017-02-05  59  

:::::: The code at line 54 was first introduced by commit
:::::: 1a0f7ed3abe29cff8e652c69a8ad89aec2c40f00 drm/rockchip: cdn-dp: add cdn DP support for rk3399

:::::: TO: Chris Zhong <zyw@rock-chips.com>
:::::: CC: Mark Yao <mark.yao@rock-chips.com>

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

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids'
@ 2021-12-15  8:22 ` kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-12-15  8:22 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 2592 bytes --]

Hi Robin,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5472f14a37421d1bca3dddf33cabd3bd6dbefbbc
commit: b4ceb4a5359ed1c9ba4a20acf3a70d4bbead3248 iommu: Tidy up Kconfig for SoC IOMMUs
date:   1 year, 5 months ago
config: x86_64-buildonly-randconfig-r004-20211215 (https://download.01.org/0day-ci/archive/20211215/202112151637.BKx0hSTS-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c)
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
        # 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 config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/rockchip/ kernel/sched/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> 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 +/cdn_dp_dt_ids +54 drivers/gpu/drm/rockchip/cdn-dp-core.c

1a0f7ed3abe29c Chris Zhong 2017-02-05  53  
1a0f7ed3abe29c Chris Zhong 2017-02-05 @54  static const struct of_device_id cdn_dp_dt_ids[] = {
1a0f7ed3abe29c Chris Zhong 2017-02-05  55  	{ .compatible = "rockchip,rk3399-cdn-dp",
1a0f7ed3abe29c Chris Zhong 2017-02-05  56  		.data = (void *)&rk3399_cdn_dp },
1a0f7ed3abe29c Chris Zhong 2017-02-05  57  	{}
1a0f7ed3abe29c Chris Zhong 2017-02-05  58  };
1a0f7ed3abe29c Chris Zhong 2017-02-05  59  

:::::: The code at line 54 was first introduced by commit
:::::: 1a0f7ed3abe29cff8e652c69a8ad89aec2c40f00 drm/rockchip: cdn-dp: add cdn DP support for rk3399

:::::: TO: Chris Zhong <zyw@rock-chips.com>
:::::: CC: Mark Yao <mark.yao@rock-chips.com>

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

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2023-01-19 13:07 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-05  1:01 drivers/gpu/drm/rockchip/cdn-dp-core.c:54:34: warning: unused variable 'cdn_dp_dt_ids' kernel test robot
2021-09-05  1:01 ` kernel test robot
2021-12-15  8:22 kernel test robot
2021-12-15  8:22 ` kernel test robot
2023-01-19 13:06 kernel test robot

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