iwlegacy: 3945: simplify calculations of retry limit

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c
index 44a1211..1489b15 100644
--- a/drivers/net/wireless/iwlegacy/3945.c
+++ b/drivers/net/wireless/iwlegacy/3945.c
@@ -680,13 +680,13 @@
 void
 il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd,
 			    struct ieee80211_tx_info *info,
-			    struct ieee80211_hdr *hdr, int sta_id, int tx_id)
+			    struct ieee80211_hdr *hdr, int sta_id)
 {
 	u16 hw_value = ieee80211_get_tx_rate(il->hw, info)->hw_value;
 	u16 rate_idx = min(hw_value & 0xffff, RATE_COUNT_3945 - 1);
 	u16 rate_mask;
 	int rate;
-	u8 rts_retry_limit;
+	const u8 rts_retry_limit = 7;
 	u8 data_retry_limit;
 	__le32 tx_flags;
 	__le16 fc = hdr->frame_control;
@@ -705,15 +705,8 @@
 	else
 		data_retry_limit = IL_DEFAULT_TX_RETRY;
 	tx_cmd->data_retry_limit = data_retry_limit;
-
-	if (tx_id >= IL39_CMD_QUEUE_NUM)
-		rts_retry_limit = 3;
-	else
-		rts_retry_limit = 7;
-
-	if (data_retry_limit < rts_retry_limit)
-		rts_retry_limit = data_retry_limit;
-	tx_cmd->rts_retry_limit = rts_retry_limit;
+	/* Set retry limit on RTS packets */
+	tx_cmd->rts_retry_limit = min(data_retry_limit, rts_retry_limit);
 
 	tx_cmd->rate = rate;
 	tx_cmd->tx_flags = tx_flags;