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Message-ID: <202505310308.8veTfz2G-lkp@intel.com>
Date: Sat, 31 May 2025 03:14:27 +0800
From: kernel test robot <lkp@...el.com>
To: Álvaro Fernández Rojas <noltari@...il.com>,
	jonas.gorski@...il.com, florian.fainelli@...adcom.com,
	andrew@...n.ch, olteanv@...il.com, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	horms@...nel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, dgcbueu@...il.com
Cc: oe-kbuild-all@...ts.linux.dev,
	Álvaro Fernández Rojas <noltari@...il.com>
Subject: Re: [PATCH] net: dsa: b53: support legacy FCS tags

Hi Álvaro,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]
[also build test ERROR on net/main linus/master v6.15 next-20250530]
[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/lvaro-Fern-ndez-Rojas/net-dsa-b53-support-legacy-FCS-tags/20250530-235844
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250530155618.273567-4-noltari%40gmail.com
patch subject: [PATCH] net: dsa: b53: support legacy FCS tags
config: sparc-randconfig-001-20250531 (https://download.01.org/0day-ci/archive/20250531/202505310308.8veTfz2G-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250531/202505310308.8veTfz2G-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/202505310308.8veTfz2G-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/net/dsa/b53/b53_common.c: In function 'b53_get_tag_protocol':
>> drivers/net/dsa/b53/b53_common.c:2267:23: error: 'DSA_TAG_PROTO_BRCM_LEGACY_FCS' undeclared (first use in this function); did you mean 'DSA_TAG_PROTO_BRCM_LEGACY'?
      dev->tag_protocol = DSA_TAG_PROTO_BRCM_LEGACY_FCS;
                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                          DSA_TAG_PROTO_BRCM_LEGACY
   drivers/net/dsa/b53/b53_common.c:2267:23: note: each undeclared identifier is reported only once for each function it appears in


vim +2267 drivers/net/dsa/b53/b53_common.c

  2254	
  2255	enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port,
  2256						   enum dsa_tag_protocol mprot)
  2257	{
  2258		struct b53_device *dev = ds->priv;
  2259	
  2260		if (!b53_can_enable_brcm_tags(ds, port, mprot)) {
  2261			dev->tag_protocol = DSA_TAG_PROTO_NONE;
  2262			goto out;
  2263		}
  2264	
  2265		/* Older models require different 6 byte tags */
  2266		if (is5325(dev) || is5365(dev)) {
> 2267			dev->tag_protocol = DSA_TAG_PROTO_BRCM_LEGACY_FCS;
  2268			goto out;
  2269		} else if (is63xx(dev)) {
  2270			dev->tag_protocol = DSA_TAG_PROTO_BRCM_LEGACY;
  2271			goto out;
  2272		}
  2273	
  2274		/* Broadcom BCM58xx chips have a flow accelerator on Port 8
  2275		 * which requires us to use the prepended Broadcom tag type
  2276		 */
  2277		if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT) {
  2278			dev->tag_protocol = DSA_TAG_PROTO_BRCM_PREPEND;
  2279			goto out;
  2280		}
  2281	
  2282		dev->tag_protocol = DSA_TAG_PROTO_BRCM;
  2283	out:
  2284		return dev->tag_protocol;
  2285	}
  2286	EXPORT_SYMBOL(b53_get_tag_protocol);
  2287	

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

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