ath9k: Cleanup Powersave flags

sc_flags has slowly become a kitchen sink over time.
Move powersave related flags to a separate variable.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 68 insertions, 65 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 68a423054e6c..f4645a45ef3c 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -416,26 +416,28 @@ void ath_deinit_leds(struct ath_softc *sc);
 #define ATH_TXPOWER_MAX         100     /* .5 dBm units */
 #define ATH_RATE_DUMMY_MARKER   0
 
-#define SC_OP_INVALID           BIT(0)
-#define SC_OP_BEACONS           BIT(1)
-#define SC_OP_RXAGGR            BIT(2)
-#define SC_OP_TXAGGR            BIT(3)
-#define SC_OP_FULL_RESET        BIT(4)
-#define SC_OP_PREAMBLE_SHORT    BIT(5)
-#define SC_OP_PROTECT_ENABLE    BIT(6)
-#define SC_OP_RXFLUSH           BIT(7)
-#define SC_OP_LED_ASSOCIATED    BIT(8)
-#define SC_OP_WAIT_FOR_BEACON   BIT(12)
-#define SC_OP_LED_ON            BIT(13)
-#define SC_OP_SCANNING          BIT(14)
-#define SC_OP_TSF_RESET         BIT(15)
-#define SC_OP_WAIT_FOR_CAB      BIT(16)
-#define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17)
-#define SC_OP_WAIT_FOR_TX_ACK   BIT(18)
-#define SC_OP_BEACON_SYNC       BIT(19)
-#define SC_OP_BT_PRIORITY_DETECTED BIT(21)
-#define SC_OP_NULLFUNC_COMPLETED BIT(22)
-#define SC_OP_PS_ENABLED        BIT(23)
+#define SC_OP_INVALID                BIT(0)
+#define SC_OP_BEACONS                BIT(1)
+#define SC_OP_RXAGGR                 BIT(2)
+#define SC_OP_TXAGGR                 BIT(3)
+#define SC_OP_FULL_RESET             BIT(4)
+#define SC_OP_PREAMBLE_SHORT         BIT(5)
+#define SC_OP_PROTECT_ENABLE         BIT(6)
+#define SC_OP_RXFLUSH                BIT(7)
+#define SC_OP_LED_ASSOCIATED         BIT(8)
+#define SC_OP_LED_ON                 BIT(9)
+#define SC_OP_SCANNING               BIT(10)
+#define SC_OP_TSF_RESET              BIT(11)
+#define SC_OP_BT_PRIORITY_DETECTED   BIT(12)
+
+/* Powersave flags */
+#define PS_WAIT_FOR_BEACON        BIT(0)
+#define PS_WAIT_FOR_CAB           BIT(1)
+#define PS_WAIT_FOR_PSPOLL_DATA   BIT(2)
+#define PS_WAIT_FOR_TX_ACK        BIT(3)
+#define PS_BEACON_SYNC            BIT(4)
+#define PS_NULLFUNC_COMPLETED     BIT(5)
+#define PS_ENABLED                BIT(6)
 
 struct ath_wiphy;
 struct ath_rate_table;
@@ -471,6 +473,7 @@ struct ath_softc {
 
         u32 intrstatus;
         u32 sc_flags; /* SC_OP_* */
+        u16 ps_flags; /* PS_* */
         u16 curtxpow;
         u8 nbcnvifs;
         u16 nvifs;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 48bd5d50f4d6..974de2056b4a 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -144,10 +144,10 @@ void ath9k_ps_restore(struct ath_softc *sc)
                 goto unlock;
 
         if (sc->ps_enabled &&
-            !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
-                              SC_OP_WAIT_FOR_CAB |
-                              SC_OP_WAIT_FOR_PSPOLL_DATA |
-                              SC_OP_WAIT_FOR_TX_ACK)))
+            !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
+                              PS_WAIT_FOR_CAB |
+                              PS_WAIT_FOR_PSPOLL_DATA |
+                              PS_WAIT_FOR_TX_ACK)))
                 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
 
  unlock:
@@ -424,7 +424,7 @@ void ath9k_tasklet(unsigned long data)
                  */
                 ath_print(common, ATH_DBG_PS,
                           "TSFOOR - Sync with next Beacon\n");
-                sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC;
+                sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
         }
 
         if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
@@ -525,7 +525,7 @@ irqreturn_t ath_isr(int irq, void *dev)
                          * receive frames */
                         ath9k_setpower(sc, ATH9K_PM_AWAKE);
                         ath9k_hw_setrxabort(sc->sc_ah, 0);
-                        sc->sc_flags |= SC_OP_WAIT_FOR_BEACON;
+                        sc->ps_flags |= PS_WAIT_FOR_BEACON;
                 }
 
 chip_reset:
@@ -833,7 +833,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
                  * on the receipt of the first Beacon frame (i.e.,
                  * after time sync with the AP).
                  */
-                sc->sc_flags |= SC_OP_BEACON_SYNC;
+                sc->ps_flags |= PS_BEACON_SYNC;
 
                 /* Configure the beacon */
                 ath_beacon_config(sc, vif);
@@ -1238,11 +1238,11 @@ static int ath9k_tx(struct ieee80211_hw *hw,
                 if (ieee80211_is_pspoll(hdr->frame_control)) {
                         ath_print(common, ATH_DBG_PS,
                                   "Sending PS-Poll to pick a buffered frame\n");
-                        sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA;
+                        sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
                 } else {
                         ath_print(common, ATH_DBG_PS,
                                   "Wake up to complete TX\n");
-                        sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK;
+                        sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
                 }
                 /*
                  * The actual restore operation will happen only after
@@ -1538,7 +1538,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
          */
         if (changed & IEEE80211_CONF_CHANGE_PS) {
                 if (conf->flags & IEEE80211_CONF_PS) {
-                        sc->sc_flags |= SC_OP_PS_ENABLED;
+                        sc->ps_flags |= PS_ENABLED;
                         if (!(ah->caps.hw_caps &
                               ATH9K_HW_CAP_AUTOSLEEP)) {
                                 if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) {
@@ -1551,23 +1551,23 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
                          * At this point we know hardware has received an ACK
                          * of a previously sent null data frame.
                          */
-                        if ((sc->sc_flags & SC_OP_NULLFUNC_COMPLETED)) {
-                                sc->sc_flags &= ~SC_OP_NULLFUNC_COMPLETED;
+                        if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) {
+                                sc->ps_flags &= ~PS_NULLFUNC_COMPLETED;
                                 sc->ps_enabled = true;
                                 ath9k_hw_setrxabort(sc->sc_ah, 1);
                         }
                 } else {
                         sc->ps_enabled = false;
-                        sc->sc_flags &= ~(SC_OP_PS_ENABLED |
-                                          SC_OP_NULLFUNC_COMPLETED);
+                        sc->ps_flags &= ~(PS_ENABLED |
+                                          PS_NULLFUNC_COMPLETED);
                         ath9k_setpower(sc, ATH9K_PM_AWAKE);
                         if (!(ah->caps.hw_caps &
                               ATH9K_HW_CAP_AUTOSLEEP)) {
                                 ath9k_hw_setrxabort(sc->sc_ah, 0);
-                                sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON |
-                                                  SC_OP_WAIT_FOR_CAB |
-                                                  SC_OP_WAIT_FOR_PSPOLL_DATA |
-                                                  SC_OP_WAIT_FOR_TX_ACK);
+                                sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
+                                                  PS_WAIT_FOR_CAB |
+                                                  PS_WAIT_FOR_PSPOLL_DATA |
+                                                  PS_WAIT_FOR_TX_ACK);
                                 if (sc->imask & ATH9K_INT_TIM_TIMER) {
                                         sc->imask &= ~ATH9K_INT_TIM_TIMER;
                                         ath9k_hw_set_interrupts(sc->sc_ah,
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 477365e5ae69..17b0a6dd8caf 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -364,10 +364,10 @@ static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb)
         if (memcmp(common->curbssid, mgmt->bssid, ETH_ALEN) != 0)
                 return; /* not from our current AP */
 
-        sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON;
+        sc->ps_flags &= ~PS_WAIT_FOR_BEACON;
 
-        if (sc->sc_flags & SC_OP_BEACON_SYNC) {
-                sc->sc_flags &= ~SC_OP_BEACON_SYNC;
+        if (sc->ps_flags & PS_BEACON_SYNC) {
+                sc->ps_flags &= ~PS_BEACON_SYNC;
                 ath_print(common, ATH_DBG_PS,
                           "Reconfigure Beacon timers based on "
                           "timestamp from the AP\n");
@@ -384,17 +384,17 @@ static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb)
                  */
                 ath_print(common, ATH_DBG_PS, "Received DTIM beacon indicating "
                           "buffered broadcast/multicast frame(s)\n");
-                sc->sc_flags |= SC_OP_WAIT_FOR_CAB | SC_OP_WAIT_FOR_BEACON;
+                sc->ps_flags |= PS_WAIT_FOR_CAB | PS_WAIT_FOR_BEACON;
                 return;
         }
 
-        if (sc->sc_flags & SC_OP_WAIT_FOR_CAB) {
+        if (sc->ps_flags & PS_WAIT_FOR_CAB) {
                 /*
                  * This can happen if a broadcast frame is dropped or the AP
                  * fails to send a frame indicating that all CAB frames have
                  * been delivered.
                  */
-                sc->sc_flags &= ~SC_OP_WAIT_FOR_CAB;
+                sc->ps_flags &= ~PS_WAIT_FOR_CAB;
                 ath_print(common, ATH_DBG_PS,
                           "PS wait for CAB frames timed out\n");
         }
@@ -408,10 +408,10 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb)
         hdr = (struct ieee80211_hdr *)skb->data;
 
         /* Process Beacon and CAB receive in PS state */
-        if ((sc->sc_flags & SC_OP_WAIT_FOR_BEACON) &&
+        if ((sc->ps_flags & PS_WAIT_FOR_BEACON) &&
             ieee80211_is_beacon(hdr->frame_control))
                 ath_rx_ps_beacon(sc, skb);
-        else if ((sc->sc_flags & SC_OP_WAIT_FOR_CAB) &&
+        else if ((sc->ps_flags & PS_WAIT_FOR_CAB) &&
                  (ieee80211_is_data(hdr->frame_control) ||
                   ieee80211_is_action(hdr->frame_control)) &&
                  is_multicast_ether_addr(hdr->addr1) &&
@@ -420,20 +420,20 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb)
                  * No more broadcast/multicast frames to be received at this
                  * point.
                  */
-                sc->sc_flags &= ~SC_OP_WAIT_FOR_CAB;
+                sc->ps_flags &= ~PS_WAIT_FOR_CAB;
                 ath_print(common, ATH_DBG_PS,
                           "All PS CAB frames received, back to sleep\n");
-        } else if ((sc->sc_flags & SC_OP_WAIT_FOR_PSPOLL_DATA) &&
+        } else if ((sc->ps_flags & PS_WAIT_FOR_PSPOLL_DATA) &&
                    !is_multicast_ether_addr(hdr->addr1) &&
                    !ieee80211_has_morefrags(hdr->frame_control)) {
-                sc->sc_flags &= ~SC_OP_WAIT_FOR_PSPOLL_DATA;
+                sc->ps_flags &= ~PS_WAIT_FOR_PSPOLL_DATA;
                 ath_print(common, ATH_DBG_PS,
                           "Going back to sleep after having received "
                           "PS-Poll data (0x%x)\n",
-                        sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
-                                        SC_OP_WAIT_FOR_CAB |
-                                        SC_OP_WAIT_FOR_PSPOLL_DATA |
-                                        SC_OP_WAIT_FOR_TX_ACK));
+                        sc->ps_flags & (PS_WAIT_FOR_BEACON |
+                                        PS_WAIT_FOR_CAB |
+                                        PS_WAIT_FOR_PSPOLL_DATA |
+                                        PS_WAIT_FOR_TX_ACK));
         }
 }
 
@@ -631,9 +631,9 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
                         sc->rx.rxotherant = 0;
                 }
 
-                if (unlikely(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
-                                             SC_OP_WAIT_FOR_CAB |
-                                             SC_OP_WAIT_FOR_PSPOLL_DATA)))
+                if (unlikely(sc->ps_flags & (PS_WAIT_FOR_BEACON |
+                                             PS_WAIT_FOR_CAB |
+                                             PS_WAIT_FOR_PSPOLL_DATA)))
                         ath_rx_ps(sc, skb);
 
                 ath_rx_send_to_mac80211(hw, sc, skb, rxs);
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index fa12b9060b0b..a821bb687b3b 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1648,7 +1648,7 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf,
         /* tag if this is a nullfunc frame to enable PS when AP acks it */
         if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc)) {
                 bf->bf_isnullfunc = true;
-                sc->sc_flags &= ~SC_OP_NULLFUNC_COMPLETED;
+                sc->ps_flags &= ~PS_NULLFUNC_COMPLETED;
         } else
                 bf->bf_isnullfunc = false;
 
@@ -1858,15 +1858,15 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
                 skb_pull(skb, padsize);
         }
 
-        if (sc->sc_flags & SC_OP_WAIT_FOR_TX_ACK) {
-                sc->sc_flags &= ~SC_OP_WAIT_FOR_TX_ACK;
+        if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) {
+                sc->ps_flags &= ~PS_WAIT_FOR_TX_ACK;
                 ath_print(common, ATH_DBG_PS,
                           "Going back to sleep after having "
                           "received TX status (0x%x)\n",
-                        sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
-                                        SC_OP_WAIT_FOR_CAB |
-                                        SC_OP_WAIT_FOR_PSPOLL_DATA |
-                                        SC_OP_WAIT_FOR_TX_ACK));
+                        sc->ps_flags & (PS_WAIT_FOR_BEACON |
+                                        PS_WAIT_FOR_CAB |
+                                        PS_WAIT_FOR_PSPOLL_DATA |
+                                        PS_WAIT_FOR_TX_ACK));
         }
 
         if (unlikely(tx_info->pad[0] & ATH_TX_INFO_FRAME_TYPE_INTERNAL))
@@ -2053,11 +2053,11 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
                  */
                 if (bf->bf_isnullfunc &&
                     (ds->ds_txstat.ts_status & ATH9K_TX_ACKED)) {
-                        if ((sc->sc_flags & SC_OP_PS_ENABLED)) {
+                        if ((sc->ps_flags & PS_ENABLED)) {
                                 sc->ps_enabled = true;
                                 ath9k_hw_setrxabort(sc->sc_ah, 1);
                         } else
-                                sc->sc_flags |= SC_OP_NULLFUNC_COMPLETED;
+                                sc->ps_flags |= PS_NULLFUNC_COMPLETED;
                 }
 
                 /*