linux-kernel - Re: [PATCH 1/2] gpio: mmio: add brcm,bcm6345 support

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Date:	Wed, 3 Aug 2016 19:38:31 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Álvaro Fernández Rojas <noltari@...il.com>
Cc:	kbuild-all@...org, linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org, linus.walleij@...aro.org,
	gnurou@...il.com, chunkeey@...glemail.com,
	Álvaro Fernández Rojas <noltari@...il.com>
Subject: Re: [PATCH 1/2] gpio: mmio: add brcm,bcm6345 support

Hi Christian,

[auto build test WARNING on gpio/for-next]
[also build test WARNING on next-20160803]
[cannot apply to v4.7]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/lvaro-Fern-ndez-Rojas/gpio-mmio-add-brcm-bcm6345-support/20160803-191501
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
config: x86_64-randconfig-x002-201631 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from include/linux/init.h:4:0,
                    from drivers/gpio/gpio-mmio.c:47:
   drivers/gpio/gpio-mmio.c: In function 'bgpio_parse_dt':
   drivers/gpio/gpio-mmio.c:597:30: error: 'dev' undeclared (first use in this function)
     if (of_device_is_big_endian(dev->of_node))
                                 ^
   include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
     if (__builtin_constant_p(!!(cond)) ? !!(cond) :   \
                                 ^~~~
>> drivers/gpio/gpio-mmio.c:597:2: note: in expansion of macro 'if'
     if (of_device_is_big_endian(dev->of_node))
     ^~
   drivers/gpio/gpio-mmio.c:597:30: note: each undeclared identifier is reported only once for each function it appears in
     if (of_device_is_big_endian(dev->of_node))
                                 ^
   include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
     if (__builtin_constant_p(!!(cond)) ? !!(cond) :   \
                                 ^~~~
>> drivers/gpio/gpio-mmio.c:597:2: note: in expansion of macro 'if'
     if (of_device_is_big_endian(dev->of_node))
     ^~

vim +/if +597 drivers/gpio/gpio-mmio.c

   581	
   582	static struct bgpio_pdata *bgpio_parse_dt(struct platform_device *pdev,
   583						  unsigned long *flags)
   584	{
   585		struct bgpio_pdata *pdata;
   586	
   587		if (!of_match_device(bgpio_of_match, &pdev->dev))
   588			return NULL;
   589	
   590		pdata = devm_kzalloc(&pdev->dev, sizeof(struct bgpio_pdata),
   591				     GFP_KERNEL);
   592		if (!pdata)
   593			return ERR_PTR(-ENOMEM);
   594	
   595		pdata->base = -1;
   596	
 > 597		if (of_device_is_big_endian(dev->of_node))
   598			*flags |= BGPIOF_BIG_ENDIAN_BYTE_ORDER;
   599	
   600		if (of_property_read_bool(pdev->dev.of_node, "no-output"))
   601			*flags |= BGPIOF_NO_OUTPUT;
   602	
   603		return pdata;
   604	}
   605	#else

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