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* re: {nl,cfg,mac}80211: Implement RSSI threshold for mesh peering
@ 2012-03-06 10:57 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2012-03-06 10:57 UTC (permalink / raw)
  To: ashok; +Cc: linux-wireless

Hello Ashok Nagarajan,

This is a semi-automatic email about new static checker warnings.

The patch 5533513784a8: "{nl,cfg,mac}80211: Implement RSSI threshold 
for mesh peering" from Feb 28, 2012, leads to the following Smatch 
complaint:

net/mac80211/mesh_plink.c:542 mesh_rx_plink_frame()
	 error: we previously assumed 'sta' could be null (see line 534)

net/mac80211/mesh_plink.c
   533		sta = sta_info_get(sdata, mgmt->sa);
   534		if (!sta && ftype != WLAN_SP_MESH_PEERING_OPEN) {
                    ^^^^
old check.

   535			mpl_dbg("Mesh plink: cls or cnf from unknown peer\n");
   536			rcu_read_unlock();
   537			return;
   538		}
   539	
   540		if (ftype == WLAN_SP_MESH_PEERING_OPEN &&
   541		    !sta_meets_rssi_threshold(sta, sdata)) {
                     ^^^^^^^^^^^^^^^^^^^^^^^^
new dereference.

   542			mpl_dbg("Mesh plink: %pM does not meet rssi threshold\n",
   543				sta->sta.addr);
                                ^^^^^
new dereference.
   544			rcu_read_unlock();

regards,
dan carpenter


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2012-03-06 10:57 {nl,cfg,mac}80211: Implement RSSI threshold for mesh peering Dan Carpenter

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