Re: [PATCH v3 2/2] usb: Add driver to allow any GPIO to be used for 7211 USB signals

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Hi Al,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on linus/master linux/master v5.9 next-20201012]
[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/0day-ci/linux/commits/Al-Cooper/usb-Add-driver-for-USB-signal-re-mapper/20201013-040257
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: arm64-randconfig-r032-20201012 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9e72d3eaf38f217698f72cb8fdc969a6e72dad3a)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/0day-ci/linux/commit/96c8d52dbcdf6606c03aa54bcb5aece99b9328de
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Al-Cooper/usb-Add-driver-for-USB-signal-re-mapper/20201013-040257
        git checkout 96c8d52dbcdf6606c03aa54bcb5aece99b9328de
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>):

>> drivers/usb/misc/brcmstb-usb-pinmap.c:219:6: warning: no previous prototype for function 'sync_all_pins' [-Wmissing-prototypes]
   void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
        ^
   drivers/usb/misc/brcmstb-usb-pinmap.c:219:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
   ^
   static 
   1 warning generated.

vim +/sync_all_pins +219 drivers/usb/misc/brcmstb-usb-pinmap.c

   218	
 > 219	void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
   220	{
   221		struct out_pin *pout;
   222		struct in_pin *pin;
   223		int val;
   224		int x;
   225	
   226		/*
   227		 * Enable the override, clear any changed condition and
   228		 * propagate the state to the GPIO for all out pins.
   229		 */
   230		pout = pdata->out_pins;
   231		for (x = 0; x < pdata->out_count; x++) {
   232			pinmap_set(pdata->regs, pout->enable_mask);
   233			pinmap_set(pdata->regs, pout->clr_changed_mask);
   234			pinmap_unset(pdata->regs, pout->clr_changed_mask);
   235			val = readl(pdata->regs) & pout->value_mask;
   236			gpiod_set_value(pout->gpiod, val ? 1 : 0);
   237			pout++;
   238		}
   239	
   240		/* sync and enable all in pins. */
   241		pin = pdata->in_pins;
   242		for (x = 0; x < pdata->in_count; x++) {
   243			sync_in_pin(pin);
   244			pinmap_set(pdata->regs, pin->enable_mask);
   245			pin++;
   246		}
   247	}
   248	

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

Attachment: .config.gz
Description: application/gzip


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