linux-kernel - drivers/hwspinlock/omap_hwspinlock.c:165:34: warning: 'omap_hwspinlock_of

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Message-ID: <202302201728.S4sOFmKE-lkp@intel.com>
Date:   Mon, 20 Feb 2023 17:37:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Baolin Wang <baolin.wang7@...il.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Subject: drivers/hwspinlock/omap_hwspinlock.c:165:34: warning:
 'omap_hwspinlock_of_match' defined but not used

Hi Baolin,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c9c3395d5e3dcc6daee66c6908354d47bf98cb0c
commit: ffd0bbfb378ecd56eac22bf932ccdbf89ac7f725 hwspinlock: Allow drivers to be built with COMPILE_TEST
date:   2 years, 11 months ago
config: x86_64-buildonly-randconfig-r004-20230220 (https://download.01.org/0day-ci/archive/20230220/202302201728.S4sOFmKE-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ffd0bbfb378ecd56eac22bf932ccdbf89ac7f725
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout ffd0bbfb378ecd56eac22bf932ccdbf89ac7f725
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/clk/imx/ drivers/hwspinlock/ drivers/mmc/host/ drivers/usb/phy/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302201728.S4sOFmKE-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/hwspinlock/omap_hwspinlock.c:165:34: warning: 'omap_hwspinlock_of_match' defined but not used [-Wunused-const-variable=]
     165 | static const struct of_device_id omap_hwspinlock_of_match[] = {
         |                                  ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/omap_hwspinlock_of_match +165 drivers/hwspinlock/omap_hwspinlock.c

70ba4cc26b9f53 Simon Que  2011-02-17  164  
65bd4341d61678 Suman Anna 2015-03-04 @165  static const struct of_device_id omap_hwspinlock_of_match[] = {
65bd4341d61678 Suman Anna 2015-03-04  166  	{ .compatible = "ti,omap4-hwspinlock", },
6fa154e282f9c8 Suman Anna 2019-05-30  167  	{ .compatible = "ti,am654-hwspinlock", },
65bd4341d61678 Suman Anna 2015-03-04  168  	{ /* end */ },
65bd4341d61678 Suman Anna 2015-03-04  169  };
65bd4341d61678 Suman Anna 2015-03-04  170  MODULE_DEVICE_TABLE(of, omap_hwspinlock_of_match);
65bd4341d61678 Suman Anna 2015-03-04  171  

:::::: The code at line 165 was first introduced by commit
:::::: 65bd4341d61678494ea14994d0d7df73644ca014 hwspinlock/omap: add support for dt nodes

:::::: TO: Suman Anna <s-anna@...com>
:::::: CC: Ohad Ben-Cohen <ohad@...ery.com>

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