[driver-core:debugfs_cleanup 77/78] drivers/net/wireless/intel/iwlegacy/4965-rs.c:2779:42: error: void value not ignored as it ought to be

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git debugfs_cleanup
head:   0c2872ff925dd9b66e3f636d01221fb27859f3f3
commit: 2cd2d7ff48151c0a5326606dbc48a00df3a4d596 [77/78] debugfs: remove return value of debugfs_create_u8()
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 2cd2d7ff48151c0a5326606dbc48a00df3a4d596
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=sparc64 

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

All errors (new ones prefixed by >>):

   drivers/net/wireless/intel/iwlegacy/4965-rs.c: In function 'il4965_rs_add_debugfs':
>> drivers/net/wireless/intel/iwlegacy/4965-rs.c:2779:42: error: void value not ignored as it ought to be
     lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
                                             ^

vim +2779 drivers/net/wireless/intel/iwlegacy/4965-rs.c

be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2765  
e7392364 drivers/net/wireless/iwlegacy/4965-rs.c       Stanislaw Gruszka 2011-11-15  2766  static void
e7392364 drivers/net/wireless/iwlegacy/4965-rs.c       Stanislaw Gruszka 2011-11-15  2767  il4965_rs_add_debugfs(void *il, void *il_sta, struct dentry *dir)
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2768  {
46bc8d4b drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Stanislaw Gruszka 2011-10-24  2769  	struct il_lq_sta *lq_sta = il_sta;
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2770  	lq_sta->rs_sta_dbgfs_scale_table_file =
2ef00c53 drivers/net/wireless/intel/iwlegacy/4965-rs.c Joe Perches       2018-03-23  2771  	    debugfs_create_file("rate_scale_table", 0600, dir,
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2772  				lq_sta, &rs_sta_dbgfs_scale_table_ops);
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2773  	lq_sta->rs_sta_dbgfs_stats_table_file =
2ef00c53 drivers/net/wireless/intel/iwlegacy/4965-rs.c Joe Perches       2018-03-23  2774  	    debugfs_create_file("rate_stats_table", 0400, dir, lq_sta,
e7392364 drivers/net/wireless/iwlegacy/4965-rs.c       Stanislaw Gruszka 2011-11-15  2775  				&rs_sta_dbgfs_stats_table_ops);
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2776  	lq_sta->rs_sta_dbgfs_rate_scale_data_file =
2ef00c53 drivers/net/wireless/intel/iwlegacy/4965-rs.c Joe Perches       2018-03-23  2777  	    debugfs_create_file("rate_scale_data", 0400, dir, lq_sta,
e7392364 drivers/net/wireless/iwlegacy/4965-rs.c       Stanislaw Gruszka 2011-11-15  2778  				&rs_sta_dbgfs_rate_scale_data_ops);
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21 @2779  	lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
2ef00c53 drivers/net/wireless/intel/iwlegacy/4965-rs.c Joe Perches       2018-03-23  2780  	    debugfs_create_u8("tx_agg_tid_enable", 0600, dir,
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2781  			      &lq_sta->tx_agg_tid_en);
be663ab6 drivers/net/wireless/iwlegacy/iwl-4965-rs.c   Wey-Yi Guy        2011-02-21  2782  

:::::: The code at line 2779 was first introduced by commit
:::::: be663ab67077fac8e23eb8e231a8c1c94cb32e54 iwlwifi: split the drivers for agn and legacy devices 3945/4965

:::::: TO: Wey-Yi Guy <wey-yi.w.guy at intel.com>
:::::: CC: Wey-Yi Guy <wey-yi.w.guy at intel.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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