Re: [PATCH 2/2] backlight: Add Kinetic KTD2801 driver

[kernel test robot <lkp@intel.com>]

Hi Duje,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa]

url:    https://github.com/intel-lab-lkp/linux/commits/Duje-Mihanovi/dt-bindings-backlight-add-Kinetic-KTD2801-binding/20231006-025106
base:   8a749fd1a8720d4619c91c8b6e7528c0a355c0aa
patch link:    https://lore.kernel.org/r/20231005-ktd2801-v1-2-43cd85b0629a%40skole.hr
patch subject: [PATCH 2/2] backlight: Add Kinetic KTD2801 driver
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20231011/202310110122.Syu9oJQI-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231011/202310110122.Syu9oJQI-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310110122.Syu9oJQI-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/video/backlight/ktd2801-backlight.c:15: warning: "DS" redefined
      15 | #define DS              5
         | 
   In file included from arch/x86/include/uapi/asm/ptrace.h:6,
                    from arch/x86/include/asm/ptrace.h:7,
                    from arch/x86/include/asm/math_emu.h:5,
                    from arch/x86/include/asm/processor.h:13,
                    from arch/x86/include/asm/cpufeature.h:5,
                    from arch/x86/include/asm/thread_info.h:53,
                    from include/linux/thread_info.h:60,
                    from arch/x86/include/asm/preempt.h:9,
                    from include/linux/preempt.h:79,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rculist.h:11,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ratelimit.h:6,
                    from include/linux/dev_printk.h:16,
                    from include/linux/device.h:15,
                    from include/linux/backlight.h:12,
                    from drivers/video/backlight/ktd2801-backlight.c:2:
   arch/x86/include/uapi/asm/ptrace-abi.h:14: note: this is the location of the previous definition
      14 | #define DS 7
         | 


vim +/DS +15 drivers/video/backlight/ktd2801-backlight.c

     8	
     9	#define EW_DELAY	150
    10	#define EW_DET		270
    11	#define LOW_BIT_HIGH	5
    12	#define LOW_BIT_LOW	(4 * HIGH_BIT_LOW)
    13	#define HIGH_BIT_LOW	5
    14	#define HIGH_BIT_HIGH	(4 * HIGH_BIT_LOW)
  > 15	#define DS		5
    16	#define EOD_L		10
    17	#define EOD_H		350
    18	#define PWR_DOWN_DELAY	2600
    19	

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