[linux-next:master 6671/14131] drivers/net/dsa/sja1105/sja1105_vl.c:238:5: warning: no previous prototype for function 'sja1105_vl_redirect'

[kbuild test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   e7b08814b16b80a0bf76eeca16317f8c2ed23b8c
commit: dfacc5a23e227cabdff41b6202f510398e90d36b [6671/14131] net: dsa: sja1105: support flow-based redirection via virtual links
config: x86_64-allyesconfig (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 2d068e534f1671459e1b135852c1b3c10502e929)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        git checkout dfacc5a23e227cabdff41b6202f510398e90d36b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/net/dsa/sja1105/sja1105_vl.c:238:5: warning: no previous prototype for function 'sja1105_vl_redirect' [-Wmissing-prototypes]
int sja1105_vl_redirect(struct sja1105_private *priv, int port,
^
drivers/net/dsa/sja1105/sja1105_vl.c:238:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int sja1105_vl_redirect(struct sja1105_private *priv, int port,
^
static
>> drivers/net/dsa/sja1105/sja1105_vl.c:286:5: warning: no previous prototype for function 'sja1105_vl_delete' [-Wmissing-prototypes]
int sja1105_vl_delete(struct sja1105_private *priv, int port,
^
drivers/net/dsa/sja1105/sja1105_vl.c:286:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int sja1105_vl_delete(struct sja1105_private *priv, int port,
^
static
2 warnings generated.

vim +/sja1105_vl_redirect +238 drivers/net/dsa/sja1105/sja1105_vl.c

   237	
 > 238	int sja1105_vl_redirect(struct sja1105_private *priv, int port,
   239				struct netlink_ext_ack *extack, unsigned long cookie,
   240				struct sja1105_key *key, unsigned long destports,
   241				bool append)
   242	{
   243		struct sja1105_rule *rule = sja1105_rule_find(priv, cookie);
   244		int rc;
   245	
   246		if (dsa_port_is_vlan_filtering(dsa_to_port(priv->ds, port)) &&
   247		    key->type != SJA1105_KEY_VLAN_AWARE_VL) {
   248			NL_SET_ERR_MSG_MOD(extack,
   249					   "Can only redirect based on {DMAC, VID, PCP}");
   250			return -EOPNOTSUPP;
   251		} else if (key->type != SJA1105_KEY_VLAN_UNAWARE_VL) {
   252			NL_SET_ERR_MSG_MOD(extack,
   253					   "Can only redirect based on DMAC");
   254			return -EOPNOTSUPP;
   255		}
   256	
   257		if (!rule) {
   258			rule = kzalloc(sizeof(*rule), GFP_KERNEL);
   259			if (!rule)
   260				return -ENOMEM;
   261	
   262			rule->cookie = cookie;
   263			rule->type = SJA1105_RULE_VL;
   264			rule->key = *key;
   265			list_add(&rule->list, &priv->flow_block.rules);
   266		}
   267	
   268		rule->port_mask |= BIT(port);
   269		if (append)
   270			rule->vl.destports |= destports;
   271		else
   272			rule->vl.destports = destports;
   273	
   274		rc = sja1105_init_virtual_links(priv, extack);
   275		if (rc) {
   276			rule->port_mask &= ~BIT(port);
   277			if (!rule->port_mask) {
   278				list_del(&rule->list);
   279				kfree(rule);
   280			}
   281		}
   282	
   283		return rc;
   284	}
   285	
 > 286	int sja1105_vl_delete(struct sja1105_private *priv, int port,

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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