Re: [PATCH 7/8] usb: misc: eud: Handle usb role switch notifications

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Hi Elson,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on usb/usb-testing usb/usb-next usb/usb-linus linus/master v6.11-rc1 next-20240801]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Elson-Roy-Serrao/dt-bindings-soc-qcom-eud-Add-phy-related-bindings/20240801-210521
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20240730222439.3469-8-quic_eserrao%40quicinc.com
patch subject: [PATCH 7/8] usb: misc: eud: Handle usb role switch notifications
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240802/202408020600.vU0uKLa7-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240802/202408020600.vU0uKLa7-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408020600.vU0uKLa7-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   drivers/usb/misc/qcom_eud.c: In function 'handle_eud_irq_thread':
>> drivers/usb/misc/qcom_eud.c:227:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
     227 |         int ret;
         |             ^~~


vim +/ret +227 drivers/usb/misc/qcom_eud.c

9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  223  
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  224  static irqreturn_t handle_eud_irq_thread(int irq, void *data)
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  225  {
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  226  	struct eud_chip *chip = data;
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08 @227  	int ret;
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  228  
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  229  	if (chip->usb_attached)
c007e96bfd0471 Elson Roy Serrao    2024-07-30  230  		ret = eud_usb_role_set(chip, USB_ROLE_DEVICE);
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  231  	else
c007e96bfd0471 Elson Roy Serrao    2024-07-30  232  		ret = eud_usb_role_set(chip, USB_ROLE_HOST);
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  233  
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  234  	/* set and clear vbus_int_clr[0] to clear interrupt */
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  235  	writel(BIT(0), chip->base + EUD_REG_VBUS_INT_CLR);
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  236  	writel(0, chip->base + EUD_REG_VBUS_INT_CLR);
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  237  
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  238  	return IRQ_HANDLED;
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  239  }
9a1bf58ccd4432 Souradeep Chowdhury 2022-02-08  240  

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




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