linux-kernel - Re: [PATCH v2 5/6] gpio: thunderx: Utilize for_each_set

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Message-ID: <202004280926.S92wb0O8%lkp@intel.com>
Date:   Tue, 28 Apr 2020 09:41:35 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Syed Nayyar Waris <syednwaris@...il.com>, akpm@...ux-foundation.org
Cc:     kbuild-all@...ts.01.org, andriy.shevchenko@...ux.intel.com,
        vilhelm.gray@...il.com, rrichter@...vell.com,
        linus.walleij@...aro.org, bgolaszewski@...libre.com,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/6] gpio: thunderx: Utilize for_each_set_clump macro

Hi Syed,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on gpio/for-next]
[also build test WARNING on linus/master asm-generic/master v5.7-rc3 next-20200424]
[cannot apply to xlnx/master]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Syed-Nayyar-Waris/Introduce-the-for_each_set_clump-macro/20200427-184103
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-191-gc51a0382-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/gpio/gpio-thunderx.c:284:9: sparse: sparse: incorrect type in argument 1 (different type sizes) @@    expected unsigned long *clump @@    got unsigunsigned long *clump @@
>> drivers/gpio/gpio-thunderx.c:284:9: sparse:    expected unsigned long *clump
>> drivers/gpio/gpio-thunderx.c:284:9: sparse:    got unsigned long long *
>> drivers/gpio/gpio-thunderx.c:284:9: sparse: sparse: incorrect type in argument 1 (different type sizes) @@    expected unsigned long *clump @@    got unsigunsigned long *clump @@
>> drivers/gpio/gpio-thunderx.c:284:9: sparse:    expected unsigned long *clump
>> drivers/gpio/gpio-thunderx.c:284:9: sparse:    got unsigned long long *

vim +284 drivers/gpio/gpio-thunderx.c

   272	
   273	static void thunderx_gpio_set_multiple(struct gpio_chip *chip,
   274					       unsigned long *mask,
   275					       unsigned long *bits)
   276	{
   277		int bank;
   278		u64 set_bits, clear_bits, gpio_mask;
   279		const unsigned long bank_size = 64;
   280		unsigned long offset;
   281	
   282		struct thunderx_gpio *txgpio = gpiochip_get_data(chip);
   283	
 > 284		for_each_set_clump(offset, gpio_mask, mask, chip->ngpio, bank_size) {
   285			bank = offset / bank_size;
   286			set_bits = bits[bank] & gpio_mask;
   287			clear_bits = ~bits[bank] & gpio_mask;
   288			writeq(set_bits, txgpio->register_base + (bank * GPIO_2ND_BANK) + GPIO_TX_SET);
   289			writeq(clear_bits, txgpio->register_base + (bank * GPIO_2ND_BANK) + GPIO_TX_CLR);
   290		}
   291	}
   292	

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