linux-kernel - drivers/leds/rgb/leds-qcom-lpg.c:177: warning: Excess struct member 'channels' description in 'lpg

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Message-ID: <202312161115.HrJPGKhQ-lkp@intel.com>
Date: Sat, 16 Dec 2023 11:16:57 +0800
From: kernel test robot <lkp@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Lee Jones <lee@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: drivers/leds/rgb/leds-qcom-lpg.c:177: warning: Excess struct member
 'channels' description in 'lpg_led'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3bd7d748816927202268cb335921f7f68b3ca723
commit: 0847c33bafe5b58f2f223153c007c1e185f84f48 leds: qcom-lpg: Annotate struct lpg_led with __counted_by
date:   6 weeks ago
config: arm-randconfig-r081-20231214 (https://download.01.org/0day-ci/archive/20231216/202312161115.HrJPGKhQ-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231216/202312161115.HrJPGKhQ-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/202312161115.HrJPGKhQ-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/leds/rgb/leds-qcom-lpg.c:177: warning: Excess struct member 'channels' description in 'lpg_led'


vim +177 drivers/leds/rgb/leds-qcom-lpg.c

24e2d05d1b68981 Bjorn Andersson 2022-03-03  160  
24e2d05d1b68981 Bjorn Andersson 2022-03-03  161  /**
24e2d05d1b68981 Bjorn Andersson 2022-03-03  162   * struct lpg_led - logical LED object
24e2d05d1b68981 Bjorn Andersson 2022-03-03  163   * @lpg:		lpg context reference
24e2d05d1b68981 Bjorn Andersson 2022-03-03  164   * @cdev:		LED class device
24e2d05d1b68981 Bjorn Andersson 2022-03-03  165   * @mcdev:		Multicolor LED class device
24e2d05d1b68981 Bjorn Andersson 2022-03-03  166   * @num_channels:	number of @channels
24e2d05d1b68981 Bjorn Andersson 2022-03-03  167   * @channels:		list of channels associated with the LED
24e2d05d1b68981 Bjorn Andersson 2022-03-03  168   */
24e2d05d1b68981 Bjorn Andersson 2022-03-03  169  struct lpg_led {
24e2d05d1b68981 Bjorn Andersson 2022-03-03  170  	struct lpg *lpg;
24e2d05d1b68981 Bjorn Andersson 2022-03-03  171  
24e2d05d1b68981 Bjorn Andersson 2022-03-03  172  	struct led_classdev cdev;
24e2d05d1b68981 Bjorn Andersson 2022-03-03  173  	struct led_classdev_mc mcdev;
24e2d05d1b68981 Bjorn Andersson 2022-03-03  174  
24e2d05d1b68981 Bjorn Andersson 2022-03-03  175  	unsigned int num_channels;
0847c33bafe5b58 Kees Cook       2023-09-15  176  	struct lpg_channel *channels[] __counted_by(num_channels);
24e2d05d1b68981 Bjorn Andersson 2022-03-03 @177  };
24e2d05d1b68981 Bjorn Andersson 2022-03-03  178  

:::::: The code at line 177 was first introduced by commit
:::::: 24e2d05d1b68981f22c984c766fabc5a93c83dba leds: Add driver for Qualcomm LPG

:::::: TO: Bjorn Andersson <bjorn.andersson@...aro.org>
:::::: CC: Pavel Machek <pavel@....cz>

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