linux-kernel - [l1k:smsc95xx_5.17 79/888] drivers/gpio/gpio-bcm-virt.c:34:31: warning: variable 'gpio' set but not used

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Message-ID: <202204110940.lcDSN1kZ-lkp@intel.com>
Date:   Mon, 11 Apr 2022 10:44:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     popcornmix <popcornmix@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [l1k:smsc95xx_5.17 79/888] drivers/gpio/gpio-bcm-virt.c:34:31:
 warning: variable 'gpio' set but not used

tree:   https://github.com/l1k/linux smsc95xx_5.17
head:   240f56c27361c195cd502d95aba51c6b8e5b808c
commit: caa59900dd53b8b063c04d41c7c0b1450f296b52 [79/888] bcm2835-virtgpio: Virtual GPIO driver
config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20220411/202204110940.lcDSN1kZ-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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://github.com/l1k/linux/commit/caa59900dd53b8b063c04d41c7c0b1450f296b52
        git remote add l1k https://github.com/l1k/linux
        git fetch --no-tags l1k smsc95xx_5.17
        git checkout caa59900dd53b8b063c04d41c7c0b1450f296b52
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/char/broadcom/ drivers/gpio/ drivers/perf/

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/gpio/gpio-bcm-virt.c: In function 'brcmvirt_gpio_dir_in':
>> drivers/gpio/gpio-bcm-virt.c:34:31: warning: variable 'gpio' set but not used [-Wunused-but-set-variable]
      34 |         struct brcmvirt_gpio *gpio;
         |                               ^~~~
   drivers/gpio/gpio-bcm-virt.c: In function 'brcmvirt_gpio_dir_out':
   drivers/gpio/gpio-bcm-virt.c:41:31: warning: variable 'gpio' set but not used [-Wunused-but-set-variable]
      41 |         struct brcmvirt_gpio *gpio;
         |                               ^~~~


vim +/gpio +34 drivers/gpio/gpio-bcm-virt.c

    31	
    32	static int brcmvirt_gpio_dir_in(struct gpio_chip *gc, unsigned off)
    33	{
  > 34		struct brcmvirt_gpio *gpio;
    35		gpio = container_of(gc, struct brcmvirt_gpio, gc);
    36		return -EINVAL;
    37	}
    38	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp