linux-kernel - Re: [PATCH v4 net-next v4 14/14] net: dsa: mv88e6xxx: abstract switch registers accesses

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Date:	Tue, 21 Jun 2016 02:33:44 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	kbuild-all@...org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
	"David S. Miller" <davem@...emloft.net>,
	Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: Re: [PATCH v4 net-next v4 14/14] net: dsa: mv88e6xxx: abstract
 switch registers accesses

Hi,

[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Vivien-Didelot/net-dsa-mv88e6xxx-probe-compatible/20160621-020115
config: m68k-allyesconfig (attached as .config)
compiler: m68k-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=m68k 

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/delay.h:10,
                    from drivers/net/dsa/mv88e6xxx.c:16:
   drivers/net/dsa/mv88e6xxx.c: In function 'mv88e6xxx_read':
>> include/linux/dynamic_debug.h:64:16: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'u16 *' [-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/net/dsa/mv88e6xxx.c:195:2: note: in expansion of macro 'dev_dbg'
     dev_dbg(ps->dev, "<- addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n",
     ^

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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