Subject: Re: [PATCH net-next 14/15] net: dsa: sja1105: replace mdiobus-pcs with xpcs-plat driver

From: kernel test robot <[email-masked]>
Date: Wed, 19 Nov 2025 19:19:59 +0800

Hi Vladimir,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Vladimir-Oltean/net-dsa-sja1105-let-phylink-help-with-the-replay-of-link-callbacks/20251119-031300
base:   net-next/main
patch link:    https://lore.kernel.org/r/20251118190530.580267-15-vladimir.oltean%40nxp.com
patch subject: [PATCH net-next 14/15] net: dsa: sja1105: replace mdiobus-pcs with xpcs-plat driver
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20251119/[email-masked]/config)
compiler: m68k-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251119/[email-masked]/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 <[email-masked]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email-masked]/

All warnings (new ones prefixed by >>):

   drivers/net/dsa/sja1105/sja1105_mfd.c: In function 'sja1105_create_pcs_nodes':
>> drivers/net/dsa/sja1105/sja1105_mfd.c:145:73: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
     145 |                 snprintf(node_name, sizeof(node_name), "ethernet-pcs@%llx",
         |                                                                      ~~~^
         |                                                                         |
         |                                                                         long long unsigned int
         |                                                                      %x
     146 |                          pcs_res->res.start);
         |                          ~~~~~~~~~~~~~~~~~~                              
         |                                      |
         |                                      resource_size_t {aka unsigned int}

vim +145 drivers/net/dsa/sja1105/sja1105_mfd.c

   124	
   125	static int sja1105_create_pcs_nodes(struct sja1105_private *priv,
   126					    struct device_node *regs_node)
   127	{
   128		struct dsa_switch *ds = priv->ds;
   129		struct device *dev = ds->dev;
   130		struct device_node *pcs_node;
   131		const u32 reg_io_width = 4;
   132		char node_name[32];
   133		u32 reg_props[2];
   134		int rc;
   135	
   136		for (int i = 0; i < priv->info->num_pcs_resources; i++) {
   137			const struct sja1105_pcs_resource *pcs_res;
   138	
   139			pcs_res = &priv->info->pcs_resources[i];
   140	
   141			if (sja1105_child_node_exists(regs_node, "ethernet-pcs",
   142						      &pcs_res->res))
   143				continue;
   144	
 > 145			snprintf(node_name, sizeof(node_name), "ethernet-pcs@%llx",
   146				 pcs_res->res.start);
   147	
   148			pcs_node = of_changeset_create_node(&priv->of_cs, regs_node,
   149							    node_name);
   150			if (!pcs_node) {
   151				dev_err(dev, "Failed to create PCS node %s\n", node_name);
   152				return -ENOMEM;
   153			}
   154	
   155			rc = of_changeset_add_prop_string(&priv->of_cs, pcs_node,
   156							  "compatible",
   157							  pcs_res->compatible);
   158			if (rc) {
   159				dev_err(dev, "Failed to add compatible property to %s: %pe\n",
   160					node_name, ERR_PTR(rc));
   161				return rc;
   162			}
   163	
   164			reg_props[0] = pcs_res->res.start;
   165			reg_props[1] = resource_size(&pcs_res->res);
   166			rc = of_changeset_add_prop_u32_array(&priv->of_cs, pcs_node,
   167							     "reg", reg_props, 2);
   168			if (rc) {
   169				dev_err(dev, "Failed to add reg property to %s: %pe\n",
   170					node_name, ERR_PTR(rc));
   171				return rc;
   172			}
   173	
   174			rc = of_changeset_add_prop_string(&priv->of_cs, pcs_node,
   175							  "reg-names",
   176							  pcs_res->res.name);
   177			if (rc) {
   178				dev_err(dev, "Failed to add reg-names property to %s: %pe\n",
   179					node_name, ERR_PTR(rc));
   180				return rc;
   181			}
   182	
   183			rc = of_changeset_add_prop_u32_array(&priv->of_cs, pcs_node,
   184							     "reg-io-width",
   185							     &reg_io_width, 1);
   186			if (rc) {
   187				dev_err(dev, "Failed to add reg-io-width property to %s: %pe\n",
   188					node_name, ERR_PTR(rc));
   189				return rc;
   190			}
   191	
   192			dev_dbg(dev, "Created OF node %pOF\n", pcs_node);
   193			priv->pcs_fwnode[pcs_res->port] = of_fwnode_handle(pcs_node);
   194		}
   195	
   196		return 0;
   197	}
   198	

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