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

From: kernel test robot <[email-masked]>
Date: Fri, 26 Dec 2025 02:30:49 +0800

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/[email-masked]/config)
compiler: hppa-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251226/[email-masked]/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 <[email-masked]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email-masked]/

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  

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