linux-kernel - drivers/powercap/dtpm.c:602: warning: Function parameter or member 'dtpm_match_table' not described in 'dtpm_create

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Message-ID: <202309101242.EjuX7vK3-lkp@intel.com>
Date:   Sun, 10 Sep 2023 12:09:36 +0800
From:   kernel test robot <lkp@...el.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: drivers/powercap/dtpm.c:602: warning: Function parameter or member
 'dtpm_match_table' not described in 'dtpm_create_hierarchy'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a3c57ab79a06e333a869ae340420cb3c6f5921d3
commit: 3759ec678e8944dc2ea70cab77a300408f78ae27 powercap/drivers/dtpm: Add hierarchy creation
date:   1 year, 7 months ago
config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20230910/202309101242.EjuX7vK3-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230910/202309101242.EjuX7vK3-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/202309101242.EjuX7vK3-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/powercap/dtpm.c:602: warning: Function parameter or member 'dtpm_match_table' not described in 'dtpm_create_hierarchy'
>> drivers/powercap/dtpm.c:602: warning: Excess function parameter 'hierarchy' description in 'dtpm_create_hierarchy'


vim +602 drivers/powercap/dtpm.c

   574	
   575	/**
   576	 * dtpm_create_hierarchy - Create the dtpm hierarchy
   577	 * @hierarchy: An array of struct dtpm_node describing the hierarchy
   578	 *
   579	 * The function is called by the platform specific code with the
   580	 * description of the different node in the hierarchy. It creates the
   581	 * tree in the sysfs filesystem under the powercap dtpm entry.
   582	 *
   583	 * The expected tree has the format:
   584	 *
   585	 * struct dtpm_node hierarchy[] = {
   586	 *	[0] { .name = "topmost", type =  DTPM_NODE_VIRTUAL },
   587	 *	[1] { .name = "package", .type = DTPM_NODE_VIRTUAL, .parent = &hierarchy[0] },
   588	 *	[2] { .name = "/cpus/cpu0", .type = DTPM_NODE_DT, .parent = &hierarchy[1] },
   589	 *	[3] { .name = "/cpus/cpu1", .type = DTPM_NODE_DT, .parent = &hierarchy[1] },
   590	 *	[4] { .name = "/cpus/cpu2", .type = DTPM_NODE_DT, .parent = &hierarchy[1] },
   591	 *	[5] { .name = "/cpus/cpu3", .type = DTPM_NODE_DT, .parent = &hierarchy[1] },
   592	 *	[6] { }
   593	 * };
   594	 *
   595	 * The last element is always an empty one and marks the end of the
   596	 * array.
   597	 *
   598	 * Return: zero on success, a negative value in case of error. Errors
   599	 * are reported back from the underlying functions.
   600	 */
   601	int dtpm_create_hierarchy(struct of_device_id *dtpm_match_table)
 > 602	{

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