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[mac80211-next:master 2177/2199] net/ethtool/cabletest.c:230:5: warning: no previous prototype for 'ethnl_act_cable_test_tdr_cfg'

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
head:   119aadf816f5373dc82ca4109d6d5b777e00475b
commit: f2bc8ad31a7f814237bc6301d59296d76505a688 [2177/2199] net: ethtool: Allow PHY cable test TDR data to configured
config: alpha-randconfig-r024-20200527 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
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
        git checkout f2bc8ad31a7f814237bc6301d59296d76505a688
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha 

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

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

>> net/ethtool/cabletest.c:230:5: warning: no previous prototype for 'ethnl_act_cable_test_tdr_cfg' [-Wmissing-prototypes]
230 | int ethnl_act_cable_test_tdr_cfg(const struct nlattr *nest,
|     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/ethnl_act_cable_test_tdr_cfg +230 net/ethtool/cabletest.c

   228	
   229	/* CABLE_TEST_TDR_ACT */
 > 230	int ethnl_act_cable_test_tdr_cfg(const struct nlattr *nest,
   231					 struct genl_info *info,
   232					 struct phy_tdr_config *cfg)
   233	{
   234		struct nlattr *tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_MAX + 1];
   235		int ret;
   236	
   237		ret = nla_parse_nested(tb, ETHTOOL_A_CABLE_TEST_TDR_CFG_MAX, nest,
   238				       cable_test_tdr_act_cfg_policy, info->extack);
   239		if (ret < 0)
   240			return ret;
   241	
   242		if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST])
   243			cfg->first = nla_get_u32(
   244				tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST]);
   245		else
   246			cfg->first = 100;
   247		if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST])
   248			cfg->last = nla_get_u32(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST]);
   249		else
   250			cfg->last = MAX_CABLE_LENGTH_CM;
   251	
   252		if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP])
   253			cfg->step = nla_get_u32(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP]);
   254		else
   255			cfg->step = 100;
   256	
   257		if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR]) {
   258			cfg->pair = nla_get_u8(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR]);
   259			if (cfg->pair > ETHTOOL_A_CABLE_PAIR_D) {
   260				NL_SET_ERR_MSG_ATTR(
   261					info->extack,
   262					tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR],
   263					"invalid pair parameter");
   264				return -EINVAL;
   265			}
   266		} else {
   267			cfg->pair = PHY_PAIR_ALL;
   268		}
   269	
   270		if (cfg->first > MAX_CABLE_LENGTH_CM) {
   271			NL_SET_ERR_MSG_ATTR(info->extack,
   272					    tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST],
   273					    "invalid first parameter");
   274			return -EINVAL;
   275		}
   276	
   277		if (cfg->last > MAX_CABLE_LENGTH_CM) {
   278			NL_SET_ERR_MSG_ATTR(info->extack,
   279					    tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST],
   280					    "invalid last parameter");
   281			return -EINVAL;
   282		}
   283	
   284		if (cfg->first > cfg->last) {
   285			NL_SET_ERR_MSG(info->extack, "invalid first/last parameter");
   286			return -EINVAL;
   287		}
   288	
   289		if (!cfg->step) {
   290			NL_SET_ERR_MSG_ATTR(info->extack,
   291					    tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP],
   292					    "invalid step parameter");
   293			return -EINVAL;
   294		}
   295	
   296		if (cfg->step > (cfg->last - cfg->first)) {
   297			NL_SET_ERR_MSG_ATTR(info->extack,
   298					    tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP],
   299					    "step parameter too big");
   300			return -EINVAL;
   301		}
   302	
   303		return 0;
   304	}
   305	

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

Attachment: .config.gz
Description: application/gzip


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