[PATCH 1/4] ath9k: dyanck: introduce ath_dynack_set_timeout routine

[Lorenzo Bianconi]

Introduce ath_dynack_set_timeout routine to configure slottime/ack/cts
timeouts and remove duplicated code

Tested-by: Koen Vandeputte <koen.vandepu...@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lore...@kernel.org>
---
 drivers/net/wireless/ath/ath9k/dynack.c | 37 ++++++++++++++-----------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dynack.c 
b/drivers/net/wireless/ath/ath9k/dynack.c
index 1ccf20d8c160..c244dd15dce4 100644
--- a/drivers/net/wireless/ath/ath9k/dynack.c
+++ b/drivers/net/wireless/ath/ath9k/dynack.c
@@ -78,6 +78,24 @@ static inline bool ath_dynack_bssidmask(struct ath_hw *ah, 
const u8 *mac)
        return true;
 }
 
+/**
+ * ath_dynack_set_timeout - configure timeouts/slottime registers
+ * @ah: ath hw
+ * @to: timeout value
+ *
+ */
+static void ath_dynack_set_timeout(struct ath_hw *ah, int to)
+{
+       struct ath_common *common = ath9k_hw_common(ah);
+       int slottime = (to - 3) / 2;
+
+       ath_dbg(common, DYNACK, "ACK timeout %u slottime %u\n",
+               to, slottime);
+       ath9k_hw_setslottime(ah, slottime);
+       ath9k_hw_set_ack_timeout(ah, to);
+       ath9k_hw_set_cts_timeout(ah, to);
+}
+
 /**
  * ath_dynack_compute_ackto - compute ACK timeout as the maximum STA timeout
  * @ah: ath hw
@@ -86,7 +104,6 @@ static inline bool ath_dynack_bssidmask(struct ath_hw *ah, 
const u8 *mac)
  */
 static void ath_dynack_compute_ackto(struct ath_hw *ah)
 {
-       struct ath_common *common = ath9k_hw_common(ah);
        struct ath_dynack *da = &ah->dynack;
        struct ath_node *an;
        int to = 0;
@@ -96,15 +113,8 @@ static void ath_dynack_compute_ackto(struct ath_hw *ah)
                        to = an->ackto;
 
        if (to && da->ackto != to) {
-               u32 slottime;
-
-               slottime = (to - 3) / 2;
+               ath_dynack_set_timeout(ah, to);
                da->ackto = to;
-               ath_dbg(common, DYNACK, "ACK timeout %u slottime %u\n",
-                       da->ackto, slottime);
-               ath9k_hw_setslottime(ah, slottime);
-               ath9k_hw_set_ack_timeout(ah, da->ackto);
-               ath9k_hw_set_cts_timeout(ah, da->ackto);
        }
 }
 
@@ -198,10 +208,7 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct 
sk_buff *skb,
                    ieee80211_is_assoc_resp(hdr->frame_control) ||
                    ieee80211_is_auth(hdr->frame_control)) {
                        ath_dbg(common, DYNACK, "late ack\n");
-
-                       ath9k_hw_setslottime(ah, (LATEACK_TO - 3) / 2);
-                       ath9k_hw_set_ack_timeout(ah, LATEACK_TO);
-                       ath9k_hw_set_cts_timeout(ah, LATEACK_TO);
+                       ath_dynack_set_timeout(ah, LATEACK_TO);
                        if (sta) {
                                struct ath_node *an;
 
@@ -340,9 +347,7 @@ void ath_dynack_reset(struct ath_hw *ah)
        da->ack_rbf.h_rb = 0;
 
        /* init acktimeout */
-       ath9k_hw_setslottime(ah, (ackto - 3) / 2);
-       ath9k_hw_set_ack_timeout(ah, ackto);
-       ath9k_hw_set_cts_timeout(ah, ackto);
+       ath_dynack_set_timeout(ah, ackto);
 }
 EXPORT_SYMBOL(ath_dynack_reset);
 
-- 
2.21.0