Re: [PATCH RFC 06/13] drm/connector: hdmi: Add support for output format

From: kernel test robot <lkp@intel.com>
To: Maxime Ripard <mripard@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev
Subject: Re: [PATCH RFC 06/13] drm/connector: hdmi: Add support for output format
Date: Tue, 15 Aug 2023 01:17:44 +0800	[thread overview]
Message-ID: <202308150157.wnJQ3VHE-lkp@intel.com> (raw)
In-Reply-To: <20230814-kms-hdmi-connector-state-v1-6-048054df3654@kernel.org>

Hi Maxime,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4]

url:    https://github.com/intel-lab-lkp/linux/commits/Maxime-Ripard/drm-connector-Introduce-an-HDMI-connector/20230814-215852
base:   5d0c230f1de8c7515b6567d9afba1f196fb4e2f4
patch link:    https://lore.kernel.org/r/20230814-kms-hdmi-connector-state-v1-6-048054df3654%40kernel.org
patch subject: [PATCH RFC 06/13] drm/connector: hdmi: Add support for output format
config: csky-randconfig-r002-20230814 (https://download.01.org/0day-ci/archive/20230815/202308150157.wnJQ3VHE-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230815/202308150157.wnJQ3VHE-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/202308150157.wnJQ3VHE-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/drm_hdmi_connector.c:242:1: warning: no previous prototype for 'drm_hdmi_connector_get_output_format_name' [-Wmissing-prototypes]
     242 | drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt)
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/drm_hdmi_connector_get_output_format_name +242 drivers/gpu/drm/drm_hdmi_connector.c

   233	
   234	/*
   235	 * drm_hdmi_connector_get_output_format_name() - Return a string for HDMI connector output format
   236	 * @fmt: Output format to compute name of
   237	 *
   238	 * Returns: the name of the output format, or NULL if the type is not
   239	 * valid.
   240	 */
   241	const char *
 > 242	drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt)
   243	{
   244		if (fmt >= ARRAY_SIZE(output_format_str))
   245			return NULL;
   246	
   247		return output_format_str[fmt];
   248	}
   249	EXPORT_SYMBOL(drm_hdmi_connector_get_output_format_name);
   250	

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