Re: [RFC] mac80211: Mesh Fast xmit support

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

Hi Sriram,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on jberg-mac80211-next/master]
[also build test ERROR on next-20211203]
[cannot apply to jberg-mac80211/master v5.16-rc3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Sriram-R/mac80211-Mesh-Fast-xmit-support/20211204-100545
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
config: i386-randconfig-r023-20211203 (https://download.01.org/0day-ci/archive/20211205/202112050138.7zrjRa42-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5f1d1854eb1450d352663ee732235893c5782237)
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
        # https://github.com/0day-ci/linux/commit/14d9dd609e27a80e3ffcf52e43d32de54577b9f1
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sriram-R/mac80211-Mesh-Fast-xmit-support/20211204-100545
        git checkout 14d9dd609e27a80e3ffcf52e43d32de54577b9f1
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> net/mac80211/mesh_pathtbl.c:1133:7: error: use of undeclared identifier 'old_next_hop'; did you mean 'next_hop'?
           if (!old_next_hop || !ether_addr_equal(old_next_hop->addr, next_hop->addr))
                ^~~~~~~~~~~~
                next_hop
   net/mac80211/mesh_pathtbl.c:1123:70: note: 'next_hop' declared here
   void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop)
                                                                        ^
   net/mac80211/mesh_pathtbl.c:1133:41: error: use of undeclared identifier 'old_next_hop'; did you mean 'next_hop'?
           if (!old_next_hop || !ether_addr_equal(old_next_hop->addr, next_hop->addr))
                                                  ^~~~~~~~~~~~
                                                  next_hop
   net/mac80211/mesh_pathtbl.c:1123:70: note: 'next_hop' declared here
   void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop)
                                                                        ^
   2 errors generated.


vim +1133 net/mac80211/mesh_pathtbl.c

  1114	
  1115	/**
  1116	 * mesh_path_fix_nexthop - force a specific next hop for a mesh path
  1117	 *
  1118	 * @mpath: the mesh path to modify
  1119	 * @next_hop: the next hop to force
  1120	 *
  1121	 * Locking: this function must be called holding mpath->state_lock
  1122	 */
  1123	void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop)
  1124	{
  1125		spin_lock_bh(&mpath->state_lock);
  1126		mesh_path_assign_nexthop(mpath, next_hop);
  1127		mpath->sn = 0xffff;
  1128		mpath->metric = 0;
  1129		mpath->hop_count = 0;
  1130		mpath->exp_time = 0;
  1131		mpath->flags = MESH_PATH_FIXED | MESH_PATH_SN_VALID;
  1132		mesh_path_activate(mpath);
> 1133		if (!old_next_hop || !ether_addr_equal(old_next_hop->addr, next_hop->addr))
  1134			mpath->path_change_count++;
  1135		spin_unlock_bh(&mpath->state_lock);
  1136		ewma_mesh_fail_avg_init(&next_hop->mesh->fail_avg);
  1137		/* init it at a low value - 0 start is tricky */
  1138		ewma_mesh_fail_avg_add(&next_hop->mesh->fail_avg, 1);
  1139		mesh_path_tx_pending(mpath);
  1140	}
  1141	

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