Messages in this thread | | | Date | Sun, 27 Dec 2020 05:31:58 +0800 | From | kernel test robot <> | Subject | drivers/i3c/master/mipi-i3c-hci/core.c:780:21: warning: attribute declaration must precede definition |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f838f8d2b694cf9d524dc4423e9dd2db13892f3f commit: 95393f3e07ab53855b91881692a4a5b52dcdc03c i3c/master/mipi-i3c-hci: quiet maybe-unused variable warning date: 10 days ago config: x86_64-randconfig-r025-20201221 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45) 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=95393f3e07ab53855b91881692a4a5b52dcdc03c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 95393f3e07ab53855b91881692a4a5b52dcdc03c # 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/i3c/master/mipi-i3c-hci/core.c:780:21: warning: attribute declaration must precede definition [-Wignored-attributes] static const struct __maybe_unused of_device_id i3c_hci_of_match[] = { ^ include/linux/compiler_attributes.h:267:56: note: expanded from macro '__maybe_unused' #define __maybe_unused __attribute__((__unused__)) ^ include/linux/mod_devicetable.h:262:8: note: previous definition is here struct of_device_id { ^ drivers/i3c/master/mipi-i3c-hci/core.c:780:49: warning: unused variable 'i3c_hci_of_match' [-Wunused-const-variable] static const struct __maybe_unused of_device_id i3c_hci_of_match[] = { ^ 2 warnings generated.
vim +780 drivers/i3c/master/mipi-i3c-hci/core.c
779 > 780 static const struct __maybe_unused of_device_id i3c_hci_of_match[] = { 781 { .compatible = "mipi-i3c-hci", }, 782 {}, 783 }; 784 MODULE_DEVICE_TABLE(of, i3c_hci_of_match); 785
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