diff --git a/[refs] b/[refs]
index 651a591b6326..ffffdb86563e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2fb291eea70353618fe10d94f05d16caf51f435f
+refs/heads/master: aa9746af8fa26d28d442a7415c701eb5dfeb7a2a
diff --git a/trunk/drivers/net/wireless/iwlwifi/iwl-calib.c b/trunk/drivers/net/wireless/iwlwifi/iwl-calib.c
index 7e8227773213..22fa947e8756 100644
--- a/trunk/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/trunk/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -846,6 +846,13 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
 		}
 	}
 
+	if (active_chains != priv->hw_params.valid_rx_ant &&
+	    active_chains != priv->chain_noise_data.active_chains)
+		IWL_WARN(priv,
+			 "Detected that not all antennas are connected! "
+			 "Connected: %#x, valid: %#x.\n",
+			 active_chains, priv->hw_params.valid_rx_ant);
+
 	/* Save for use within RXON, TX, SCAN commands, etc. */
 	priv->chain_noise_data.active_chains = active_chains;
 	IWL_DEBUG_CALIB(priv, "active_chains (bitwise) = 0x%x\n",