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

From: kernel test robot
Date: Thu Dec 25 2025 - 14:34:49 EST


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: x86_64-randconfig-013-20251225 (https://download.01.org/0day-ci/archive/20251226/202512260303.nUGs1vi7-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251226/202512260303.nUGs1vi7-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512260303.nUGs1vi7-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/media/pci/saa7134/saa7134-i2c.c:31:9: warning: 'i2c_dbg' macro redefined [-Wmacro-redefined]
31 | #define i2c_dbg(level, fmt, arg...) do { \
| ^
include/linux/i2c.h:775:9: note: previous definition is here
775 | #define i2c_dbg(adap, fmt, ...) dev_dbg(&(adap)->dev, fmt, ##__VA_ARGS__)
| ^
1 warning generated.


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

^1da177e4c3f415 drivers/media/video/saa7134/saa7134-i2c.c Linus Torvalds 2005-04-16 30
45f38cb3b80311a drivers/media/pci/saa7134/saa7134-i2c.c Mauro Carvalho Chehab 2015-05-13 @31 #define i2c_dbg(level, fmt, arg...) do { \
45f38cb3b80311a drivers/media/pci/saa7134/saa7134-i2c.c Mauro Carvalho Chehab 2015-05-13 32 if (i2c_debug == level) \
45f38cb3b80311a drivers/media/pci/saa7134/saa7134-i2c.c Mauro Carvalho Chehab 2015-05-13 33 printk(KERN_DEBUG pr_fmt("i2c: " fmt), ## arg); \
45f38cb3b80311a drivers/media/pci/saa7134/saa7134-i2c.c Mauro Carvalho Chehab 2015-05-13 34 } while (0)
45f38cb3b80311a drivers/media/pci/saa7134/saa7134-i2c.c Mauro Carvalho Chehab 2015-05-13 35

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