drivers/pci/controller/pci-xgene.c:626:34: warning: unused variable 'xgene_pcie_match_table'

From: kernel test robot <lkp@intel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
	linux-kernel@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>,
	Robert Richter <rric@kernel.org>
Subject: drivers/pci/controller/pci-xgene.c:626:34: warning: unused variable 'xgene_pcie_match_table'
Date: Fri, 26 Nov 2021 04:50:19 +0800	[thread overview]
Message-ID: <202111260409.W9j5FDps-lkp@intel.com> (raw)

Hi Arnd,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b501b85957deb17f1fe0a861fee820255519d526
commit: 6e5a1fff9096ecd259dedcbbdc812aa90986a40e PCI: Avoid building empty drivers
date:   9 months ago
config: x86_64-buildonly-randconfig-r003-20211118 (https://download.01.org/0day-ci/archive/20211126/202111260409.W9j5FDps-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c46becf500df2a7fb4b4fce16178a036c344315a)
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=6e5a1fff9096ecd259dedcbbdc812aa90986a40e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 6e5a1fff9096ecd259dedcbbdc812aa90986a40e
        # save the config file to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 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/pci/controller/pci-xgene.c:626:34: warning: unused variable 'xgene_pcie_match_table' [-Wunused-const-variable]
   static const struct of_device_id xgene_pcie_match_table[] = {
                                    ^
   1 warning generated.

vim +/xgene_pcie_match_table +626 drivers/pci/controller/pci-xgene.c

5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01  625  
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 @626  static const struct of_device_id xgene_pcie_match_table[] = {
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01  627  	{.compatible = "apm,xgene-pcie",},
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01  628  	{},
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01  629  };
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01  630  

:::::: The code at line 626 was first introduced by commit
:::::: 5f6b6ccdbe1cdfa5aa4347ec5412509b8995db27 PCI: xgene: Add APM X-Gene PCIe driver

:::::: TO: Tanmay Inamdar <tinamdar@apm.com>
:::::: CC: Bjorn Helgaas <bhelgaas@google.com>

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