---

yaml --- r: 315598 b: refs/heads/master c: 5d9c7e3 h: refs/heads/master v: v3
git-mirror · Jul 17, 2012 · b174019 · b174019
1 parent 50167f2
commit b174019
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Showing 2 changed files with 19 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 01967360a20598f95947a86af26c930ab1b50205
+refs/heads/master: 5d9c7e3c82aaf40b9192e6482968a39b87427bf7
diff --git a/trunk/drivers/net/wireless/ath/ath9k/main.c b/trunk/drivers/net/wireless/ath/ath9k/main.c
@@ -1923,12 +1923,29 @@ static u32 fill_chainmask(u32 cap, u32 new)
 	return filled;
 }
 
+static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
+{
+	switch (val & 0x7) {
+	case 0x1:
+	case 0x3:
+	case 0x7:
+		return true;
+	case 0x2:
+		return (ah->caps.rx_chainmask == 1);
+	default:
+		return false;
+	}
+}
+
 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_hw *ah = sc->sc_ah;
 
-	if (!rx_ant || !tx_ant)
+	if (ah->caps.rx_chainmask != 1)
+		rx_ant |= tx_ant;
+
+	if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
 		return -EINVAL;
 
 	sc->ant_rx = rx_ant;