Re: [PATCH v2] mac80211: Mesh Fast xmit support

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

Hi Sriram,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on 35610745d71df567297bb40c5e4263cda38dddd5]

url:    https://github.com/intel-lab-lkp/linux/commits/Sriram-R/mac80211-Mesh-Fast-xmit-support/20220801-150754
base:   35610745d71df567297bb40c5e4263cda38dddd5
config: ia64-randconfig-s053-20220801 (https://download.01.org/0day-ci/archive/20220815/202208150050.GNG5Kywi-lkp@intel.com/config)
compiler: ia64-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/0818e073d360fa23c2a1e61f49d67a7b3e99a4e6
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Sriram-R/mac80211-Mesh-Fast-xmit-support/20220801-150754
        git checkout 0818e073d360fa23c2a1e61f49d67a7b3e99a4e6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=ia64 SHELL=/bin/bash net/mac80211/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
>> net/mac80211/tx.c:3614:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sta_info *sta @@     got struct sta_info [noderef] __rcu *next_hop @@
   net/mac80211/tx.c:3614:13: sparse:     expected struct sta_info *sta
   net/mac80211/tx.c:3614:13: sparse:     got struct sta_info [noderef] __rcu *next_hop

vim +3614 net/mac80211/tx.c

  3613	
> 3614		sta = entry->mpath->next_hop;
  3615		key = entry->key;
  3616	
  3617		__skb_queue_head_init(&tx.skbs);
  3618	
  3619		tx.flags = IEEE80211_TX_UNICAST;
  3620		tx.local = local;
  3621		tx.sdata = sdata;
  3622		tx.sta = sta;
  3623		tx.key = key;
  3624		tx.skb = skb;
  3625	
  3626		ieee80211_xmit_fast_finish(sdata, sta, entry->pn_offs,
  3627					   key, &tx);
  3628	
  3629		__skb_queue_tail(&tx.skbs, skb);
  3630		ieee80211_tx_frags(local, &sdata->vif, sta, &tx.skbs, false);
  3631		return true;
  3632	}
  3633	

-- 
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