Paulo, This doesn't look like an error - there is a prototype for this in init/do_mount.c Is a change needed? Or something to quiet the buildbot .. On Mon, Sep 13, 2021 at 10:00 AM kernel test robot wrote: > > tree: git://git.samba.org/sfrench/cifs-2.6.git for-next > head: bba805a46c91e7a8a1d04704e5409f890acf8b66 > commit: bba805a46c91e7a8a1d04704e5409f890acf8b66 [1/1] cifs: rename fs/cifs directory to fs/smbfs > config: x86_64-allyesconfig (attached as .config) > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 > reproduce (this is a W=1 build): > git remote add cifs git://git.samba.org/sfrench/cifs-2.6.git > git fetch --no-tags cifs for-next > git checkout bba805a46c91e7a8a1d04704e5409f890acf8b66 > # save the attached .config to linux build tree > make W=1 ARCH=x86_64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot > > All warnings (new ones prefixed by >>): > > >> fs/smbfs/cifsroot.c:83:12: warning: no previous prototype for 'cifs_root_data' [-Wmissing-prototypes] > 83 | int __init cifs_root_data(char **dev, char **opts) > | ^~~~~~~~~~~~~~ > > > vim +/cifs_root_data +83 fs/smbfs/cifsroot.c > > 8eecd1c2e5bc73 fs/cifs/cifsroot.c Paulo Alcantara (SUSE 2019-07-16 82) > 8eecd1c2e5bc73 fs/cifs/cifsroot.c Paulo Alcantara (SUSE 2019-07-16 @83) int __init cifs_root_data(char **dev, char **opts) > > :::::: The code at line 83 was first introduced by commit > :::::: 8eecd1c2e5bc73d33f3a544751305679dbf88eb4 cifs: Add support for root file systems > > :::::: TO: Paulo Alcantara (SUSE) > :::::: CC: Steve French > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org -- Thanks, Steve