Re: [PATCH v4 3/3] misc: uwb: nxp: sr1xx: UWB driver support for sr1xx series chip

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Hi Manjunatha,

I love your patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on robh/for-next linus/master v5.18 next-20220527]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Manjunatha-Venkatesh/dt-bindings-uwb-Device-tree-information-for-Nxp-SR1XX-SOCs/20220528-034415
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 90de6805267f8c79cd2b1a36805071e257c39b5c
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20220528/202205280934.M6HHdGSK-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 11.3.0
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/intel-lab-lkp/linux/commit/948442a0588504d3fecae99073e785e5af6346bc
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Manjunatha-Venkatesh/dt-bindings-uwb-Device-tree-information-for-Nxp-SR1XX-SOCs/20220528-034415
        git checkout 948442a0588504d3fecae99073e785e5af6346bc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> drivers/misc/nxp-sr1xx.c:175:6: warning: no previous prototype for 'sr1xx_wait_for_irq_gpio_low' [-Wmissing-prototypes]
     175 | void sr1xx_wait_for_irq_gpio_low(struct sr1xx_dev *sr1xx_dev)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/misc/nxp-sr1xx.c:770:5: warning: no previous prototype for 'sr1xx_dev_suspend' [-Wmissing-prototypes]
     770 | int sr1xx_dev_suspend(struct device *dev)
         |     ^~~~~~~~~~~~~~~~~
>> drivers/misc/nxp-sr1xx.c:786:5: warning: no previous prototype for 'sr1xx_dev_resume' [-Wmissing-prototypes]
     786 | int sr1xx_dev_resume(struct device *dev)
         |     ^~~~~~~~~~~~~~~~


vim +/sr1xx_wait_for_irq_gpio_low +175 drivers/misc/nxp-sr1xx.c

   168	
   169	/**
   170	 * sr1xx_wait_for_irq_gpio_low
   171	 *
   172	 * Function to wait till irq gpio goes low state
   173	 *
   174	 */
 > 175	void sr1xx_wait_for_irq_gpio_low(struct sr1xx_dev *sr1xx_dev)
   176	{
   177		int retry_count = 0;
   178	
   179		do {
   180			udelay(10);
   181			retry_count++;
   182			if (retry_count == MAX_RETRY_COUNT_FOR_HANDSHAKE) {
   183				dev_info(&sr1xx_dev->spi->dev,
   184					 "Slave not released the IRQ even after 10ms");
   185				break;
   186			}
   187		} while (gpio_get_value(sr1xx_dev->irq_gpio));
   188	}
   189	

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



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