linux-kernel - Re: [PATCH v1 4/9] mfd: Add driver for Asus Transformer embedded controller

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Message-ID: <202602020344.ZGXToDMx-lkp@intel.com>
Date: Mon, 2 Feb 2026 03:06:31 +0800
From: kernel test robot <lkp@...el.com>
To: Svyatoslav Ryhel <clamor95@...il.com>, Lee Jones <lee@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Pavel Machek <pavel@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sebastian Reichel <sre@...nel.org>,
	Michał Mirosław <mirq-linux@...e.qmqm.pl>,
	Ion Agorria <ion@...rria.com>
Cc: oe-kbuild-all@...ts.linux.dev, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	linux-leds@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v1 4/9] mfd: Add driver for Asus Transformer embedded
 controller

Hi Svyatoslav,

kernel test robot noticed the following build warnings:

[auto build test WARNING on next-20260130]
[also build test WARNING on linus/master v6.19-rc7]
[cannot apply to lee-mfd/for-mfd-next lee-mfd/for-mfd-fixes dtor-input/next dtor-input/for-linus sre-power-supply/for-next v6.19-rc7 v6.19-rc6 v6.19-rc5]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Svyatoslav-Ryhel/dt-bindings-misc-document-ASUS-Transformers-EC-Dockram/20260201-184740
base:   next-20260130
patch link:    https://lore.kernel.org/r/20260201104343.79231-5-clamor95%40gmail.com
patch subject: [PATCH v1 4/9] mfd: Add driver for Asus Transformer embedded controller
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20260202/202602020344.ZGXToDMx-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260202/202602020344.ZGXToDMx-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602020344.ZGXToDMx-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:620,
                    from include/asm-generic/bug.h:31,
                    from arch/alpha/include/asm/bug.h:23,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:13,
                    from include/asm-generic/current.h:6,
                    from ./arch/alpha/include/generated/asm/current.h:1,
                    from include/linux/sched.h:12,
                    from include/linux/delay.h:13,
                    from drivers/mfd/asus-ec.c:7:
   drivers/mfd/asus-ec.c: In function 'asus_ec_read':
>> drivers/mfd/asus-ec.c:107:35: warning: field width specifier '*' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]
     107 |         dev_dbg(&priv->self->dev, "EC read: %*ph, ret = %d%s\n",
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:231:29: note: in definition of macro '__dynamic_func_call_cls'
     231 |                 func(&id, ##__VA_ARGS__);                       \
         |                             ^~~~~~~~~~~
   include/linux/dynamic_debug.h:261:9: note: in expansion of macro '_dynamic_func_call_cls'
     261 |         _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
         |         ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:284:9: note: in expansion of macro '_dynamic_func_call'
     284 |         _dynamic_func_call(fmt, __dynamic_dev_dbg,              \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:165:9: note: in expansion of macro 'dynamic_dev_dbg'
     165 |         dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~~~~~~~~
   include/linux/dev_printk.h:165:30: note: in expansion of macro 'dev_fmt'
     165 |         dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                              ^~~~~~~
   drivers/mfd/asus-ec.c:107:9: note: in expansion of macro 'dev_dbg'
     107 |         dev_dbg(&priv->self->dev, "EC read: %*ph, ret = %d%s\n",
         |         ^~~~~~~
   drivers/mfd/asus-ec.c:107:46: note: format string is defined here
     107 |         dev_dbg(&priv->self->dev, "EC read: %*ph, ret = %d%s\n",
         |                                             ~^~
         |                                              |
         |                                              int


vim +107 drivers/mfd/asus-ec.c

   100	
   101	static int asus_ec_read(struct asus_ec_data *priv, bool in_irq)
   102	{
   103		int ret = i2c_smbus_read_i2c_block_data(priv->self, 0x6A,
   104							sizeof(priv->ec_data),
   105							priv->ec_data);
   106	
 > 107		dev_dbg(&priv->self->dev, "EC read: %*ph, ret = %d%s\n",
   108			sizeof(priv->ec_data), priv->ec_data,
   109			ret, in_irq ? "; in irq" : "");
   110	
   111		return ret;
   112	}
   113	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki