[mac80211-next:genl 9/9] net/wireless/nl80211.c:8469:63: error: expected ',' or ';' before ')' token

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git 
genl
head:   09566d222ce4d6aab069c8b7dc625675c6cca3fc
commit: 09566d222ce4d6aab069c8b7dc625675c6cca3fc [9/9] genetlink: introduce and 
use genl_family_attrbuf()
config: i386-randconfig-c0-10241534 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        git checkout 09566d222ce4d6aab069c8b7dc625675c6cca3fc
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   net/wireless/nl80211.c: In function 'nl80211_testmode_dump':
>> net/wireless/nl80211.c:8469:63: error: expected ',' or ';' before ')' token
      struct nlattr ** attrbuf = genl_family_attrbuf(&nl80211_fam));
                                                                  ^

vim +8469 net/wireless/nl80211.c

  8463                  /*
  8464                   * 0 is a valid index, but not valid for args[0],
  8465                   * so we need to offset by 1.
  8466                   */
  8467                  phy_idx = cb->args[0] - 1;
  8468          } else {
> 8469                  struct nlattr ** attrbuf = 
> genl_family_attrbuf(&nl80211_fam));
  8470  
  8471                  err = nlmsg_parse(cb->nlh, GENL_HDRLEN + 
nl80211_fam.hdrsize,
  8472                                    attrbuf, nl80211_fam.maxattr, 
nl80211_policy);

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