linux-kernel - Re: [PATCH 01/12] i2c: add i2c_adapter-specific printk helpers

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Message-ID: <202512260206.C1TExj8d-lkp@intel.com>
Date: Fri, 26 Dec 2025 02:30:49 +0800
From: kernel test robot <lkp@...el.com>
To: Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>,
	Wolfram Sang <wsa-dev@...g-engineering.com>,
	Andi Shyti <andi.shyti@...nel.org>, Chen-Yu Tsai <wens@...nel.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	Khalil Blaiech <kblaiech@...dia.com>,
	Asmaa Mnebhi <asmaa@...dia.com>, Jean Delvare <jdelvare@...e.com>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	"Christophe Leroy (CS GROUP)" <chleroy@...nel.org>,
	Andreas Färber <afaerber@...e.de>,
	Manivannan Sadhasivam <mani@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev, linuxppc-dev@...ts.ozlabs.org,
	linux-actions@...ts.infradead.org,
	Bartosz Golaszewski <brgl@...nel.org>
Subject: Re: [PATCH 01/12] i2c: add i2c_adapter-specific printk helpers

Hi Bartosz,

kernel test robot noticed the following build warnings:

[auto build test WARNING on cc3aa43b44bdb43dfbac0fcb51c56594a11338a8]

url:    https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/i2c-add-i2c_adapter-specific-printk-helpers/20251223-185417
base:   cc3aa43b44bdb43dfbac0fcb51c56594a11338a8
patch link:    https://lore.kernel.org/r/20251223-i2c-printk-helpers-v1-1-46a08306afdb%40oss.qualcomm.com
patch subject: [PATCH 01/12] i2c: add i2c_adapter-specific printk helpers
config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20251226/202512260206.C1TExj8d-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251226/202512260206.C1TExj8d-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/202512260206.C1TExj8d-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/media/pci/saa7134/saa7134-i2c.c:31:9: warning: 'i2c_dbg' redefined
      31 | #define i2c_dbg(level, fmt, arg...) do { \
         |         ^~~~~~~
   In file included from drivers/media/pci/saa7134/saa7134.h:14,
                    from drivers/media/pci/saa7134/saa7134-i2c.c:10:
   include/linux/i2c.h:775:9: note: this is the location of the previous definition
     775 | #define i2c_dbg(adap, fmt, ...) dev_dbg(&(adap)->dev, fmt, ##__VA_ARGS__)
         |         ^~~~~~~


vim +/i2c_dbg +31 drivers/media/pci/saa7134/saa7134-i2c.c

^1da177e4c3f41 drivers/media/video/saa7134/saa7134-i2c.c Linus Torvalds        2005-04-16  30  
45f38cb3b80311 drivers/media/pci/saa7134/saa7134-i2c.c   Mauro Carvalho Chehab 2015-05-13 @31  #define i2c_dbg(level, fmt, arg...) do { \
45f38cb3b80311 drivers/media/pci/saa7134/saa7134-i2c.c   Mauro Carvalho Chehab 2015-05-13  32  	if (i2c_debug == level) \
45f38cb3b80311 drivers/media/pci/saa7134/saa7134-i2c.c   Mauro Carvalho Chehab 2015-05-13  33  		printk(KERN_DEBUG pr_fmt("i2c: " fmt), ## arg); \
45f38cb3b80311 drivers/media/pci/saa7134/saa7134-i2c.c   Mauro Carvalho Chehab 2015-05-13  34  	} while (0)
45f38cb3b80311 drivers/media/pci/saa7134/saa7134-i2c.c   Mauro Carvalho Chehab 2015-05-13  35  

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