linux-kernel - Re: [PATCH v2 1/1] pwm: tiehrpwm: ensures that state.enabled is synchronized in .probe()

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Message-ID: <202504201050.o3m04RP6-lkp@intel.com>
Date: Sun, 20 Apr 2025 10:21:11 +0800
From: kernel test robot <lkp@...el.com>
To: "Rafael V. Volkmer" <rafael.v.volkmer@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-pwm@...r.kernel.org, ukleinek@...nel.org
Subject: Re: [PATCH v2 1/1] pwm: tiehrpwm: ensures that state.enabled is
 synchronized in .probe()

Hi Rafael,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.15-rc2 next-20250417]
[cannot apply to thierry-reding-pwm/for-next]
[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/Rafael-V-Volkmer/pwm-tiehrpwm-ensures-that-state-enabled-is-synchronized-in-probe/20250420-075200
base:   linus/master
patch link:    https://lore.kernel.org/r/20250206031852.64853-1-rafael.v.volkmer%40gmail.com
patch subject: [PATCH v2 1/1] pwm: tiehrpwm: ensures that state.enabled is synchronized in .probe()
config: arc-randconfig-001-20250420 (https://download.01.org/0day-ci/archive/20250420/202504201050.o3m04RP6-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250420/202504201050.o3m04RP6-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/202504201050.o3m04RP6-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/pwm/pwm-tiehrpwm.c:105: warning: expecting prototype for The ePWM hardware encodes compare actions with two bits each(). Prototype was for AQ_CLEAR() instead


vim +105 drivers/pwm/pwm-tiehrpwm.c

    97	
    98	/**
    99	 * The ePWM hardware encodes compare actions with two bits each:
   100	 *   00 = Do nothing
   101	 *   01 = Clear
   102	 *   10 = Set
   103	 *   11 = Toggle
   104	 */
 > 105	#define AQ_CLEAR  1
   106	#define AQ_SET    2
   107	

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