linux-kernel - Re: [PATCH v2 1/2] drivers: led: is31fl319x: 1/3/6/9-channel light effect led driver

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Date:	Thu, 7 Jul 2016 14:35:47 +0800
From:	kbuild test robot <lkp@...el.com>
To:	"H. Nikolaus Schaller" <hns@...delico.com>
Cc:	kbuild-all@...org, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Richard Purdie <rpurdie@...ys.net>,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	"H. Nikolaus Schaller" <hns@...delico.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-leds@...r.kernel.org, kernel@...a-handheld.com,
	marek@...delico.com, letux-kernel@...nphoenux.org
Subject: Re: [PATCH v2 1/2] drivers: led: is31fl319x: 1/3/6/9-channel light
 effect led driver

Hi,

[auto build test WARNING on j.anaszewski-leds/for-next]
[also build test WARNING on v4.7-rc6 next-20160706]
[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/H-Nikolaus-Schaller/driver-leds-is31fl319x-dimmable-LED-driver/20160706-180838
base:   https://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git for-next
config: mn10300-allmodconfig (attached as .config)
compiler: am33_2.0-linux-gcc (GCC) 4.9.0
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mn10300 

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:289:0,
                    from include/linux/kernel.h:13,
                    from include/linux/list.h:8,
                    from include/linux/kobject.h:20,
                    from include/linux/device.h:17,
                    from include/linux/i2c.h:30,
                    from drivers/leds/leds-is31fl319x.c:18:
   drivers/leds/leds-is31fl319x.c: In function 'is31fl319x_brightness_set':
>> include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long int' [-Wformat=]
     static struct _ddebug  __aligned(8)   \
                   ^
   include/linux/dynamic_debug.h:84:2: note: in expansion of macro 'DEFINE_DYNAMIC_DEBUG_METADATA'
     DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);  \
     ^
   include/linux/device.h:1197:2: note: in expansion of macro 'dynamic_dev_dbg'
     dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
     ^
   drivers/leds/leds-is31fl319x.c:104:2: note: in expansion of macro 'dev_dbg'
     dev_dbg(&is31->client->dev, "%s %d: %d\n", __func__, (led - is31->leds),
     ^

vim +64 include/linux/dynamic_debug.h

b48420c1 Jim Cromie  2012-04-27  48  					const char *modname);
b48420c1 Jim Cromie  2012-04-27  49  
cbc46635 Joe Perches 2011-08-11  50  struct device;
cbc46635 Joe Perches 2011-08-11  51  
b9075fa9 Joe Perches 2011-10-31  52  extern __printf(3, 4)
906d2015 Joe Perches 2014-09-24  53  void __dynamic_dev_dbg(struct _ddebug *descriptor, const struct device *dev,
b9075fa9 Joe Perches 2011-10-31  54  		       const char *fmt, ...);
cbc46635 Joe Perches 2011-08-11  55  
ffa10cb4 Jason Baron 2011-08-11  56  struct net_device;
ffa10cb4 Jason Baron 2011-08-11  57  
b9075fa9 Joe Perches 2011-10-31  58  extern __printf(3, 4)
906d2015 Joe Perches 2014-09-24  59  void __dynamic_netdev_dbg(struct _ddebug *descriptor,
ffa10cb4 Jason Baron 2011-08-11  60  			  const struct net_device *dev,
b9075fa9 Joe Perches 2011-10-31  61  			  const char *fmt, ...);
ffa10cb4 Jason Baron 2011-08-11  62  
07613b0b Jason Baron 2011-10-04  63  #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt)		\
c0d2af63 Joe Perches 2012-10-18 @64  	static struct _ddebug  __aligned(8)			\
07613b0b Jason Baron 2011-10-04  65  	__attribute__((section("__verbose"))) name = {		\
07613b0b Jason Baron 2011-10-04  66  		.modname = KBUILD_MODNAME,			\
07613b0b Jason Baron 2011-10-04  67  		.function = __func__,				\
07613b0b Jason Baron 2011-10-04  68  		.filename = __FILE__,				\
07613b0b Jason Baron 2011-10-04  69  		.format = (fmt),				\
07613b0b Jason Baron 2011-10-04  70  		.lineno = __LINE__,				\
07613b0b Jason Baron 2011-10-04  71  		.flags =  _DPRINTK_FLAGS_DEFAULT,		\
07613b0b Jason Baron 2011-10-04  72  	}

:::::: The code at line 64 was first introduced by commit
:::::: c0d2af637863940b1a4fb208224ca7acb905c39f dynamic_debug: Remove unnecessary __used

:::::: TO: Joe Perches <joe@...ches.com>
:::::: CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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