mac80211: make retry limits part of hw config

Instead of having a separate callback, use the HW config callback
with a new flag to change retry limits.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 23 insertions, 37 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 2e81af1022e4..9aeeb6553a91 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3320,6 +3320,22 @@ init_failure:
         return err;
 }
 
+/* Write the short and long frame retry limit values. */
+static void b43_set_retry_limits(struct b43_wldev *dev,
+                                 unsigned int short_retry,
+                                 unsigned int long_retry)
+{
+        /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
+         * the chip-internal counter. */
+        short_retry = min(short_retry, (unsigned int)0xF);
+        long_retry = min(long_retry, (unsigned int)0xF);
+
+        b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
+                        short_retry);
+        b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
+                        long_retry);
+}
+
 static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
 {
         struct b43_wl *wl = hw_to_b43_wl(hw);
@@ -3340,6 +3356,13 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
         dev = wl->current_dev;
         phy = &dev->phy;
 
+        if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+                b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
+                                          conf->long_frame_max_tx_count);
+        changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
+        if (!changed)
+                goto out_unlock_mutex;
+
         /* Disable IRQs while reconfiguring the device.
          * This makes it possible to drop the spinlock throughout
          * the reconfiguration process. */
@@ -3859,22 +3882,6 @@ static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
 #endif /* CONFIG_SSB_DRIVER_PCICORE */
 }
 
-/* Write the short and long frame retry limit values. */
-static void b43_set_retry_limits(struct b43_wldev *dev,
-                                 unsigned int short_retry,
-                                 unsigned int long_retry)
-{
-        /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
-         * the chip-internal counter. */
-        short_retry = min(short_retry, (unsigned int)0xF);
-        long_retry = min(long_retry, (unsigned int)0xF);
-
-        b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
-                        short_retry);
-        b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
-                        long_retry);
-}
-
 static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
 {
         u16 pu_delay;
@@ -4195,26 +4202,6 @@ static void b43_op_stop(struct ieee80211_hw *hw)
         cancel_work_sync(&(wl->txpower_adjust_work));
 }
 
-static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
-                                  u32 short_retry_limit, u32 long_retry_limit)
-{
-        struct b43_wl *wl = hw_to_b43_wl(hw);
-        struct b43_wldev *dev;
-        int err = 0;
-
-        mutex_lock(&wl->mutex);
-        dev = wl->current_dev;
-        if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
-                err = -ENODEV;
-                goto out_unlock;
-        }
-        b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
-out_unlock:
-        mutex_unlock(&wl->mutex);
-
-        return err;
-}
-
 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
                                  struct ieee80211_sta *sta, bool set)
 {
@@ -4251,7 +4238,6 @@ static const struct ieee80211_ops b43_hw_ops = {
         .get_tx_stats           = b43_op_get_tx_stats,
         .start                  = b43_op_start,
         .stop                   = b43_op_stop,
-        .set_retry_limit        = b43_op_set_retry_limit,
         .set_tim                = b43_op_beacon_set_tim,
         .sta_notify             = b43_op_sta_notify,
 };