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, 22 insertions, 37 deletions

diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 793cc396562..78e46365f69 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -2556,6 +2556,20 @@ init_failure:
         return err;
 }
 
+/* Write the short and long frame retry limit values. */
+static void b43legacy_set_retry_limits(struct b43legacy_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);
+
+        b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
+        b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
+}
+
 static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
                                    u32 changed)
 {
@@ -2577,6 +2591,14 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
         dev = wl->current_dev;
         phy = &dev->phy;
 
+        if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+                b43legacy_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;
+
         /* Switch the PHY mode (if necessary). */
         switch (conf->channel->band) {
         case IEEE80211_BAND_2GHZ:
@@ -2989,20 +3011,6 @@ static void b43legacy_imcfglo_timeouts_workaround(struct b43legacy_wldev *dev)
 #endif /* CONFIG_SSB_DRIVER_PCICORE */
 }
 
-/* Write the short and long frame retry limit values. */
-static void b43legacy_set_retry_limits(struct b43legacy_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);
-
-        b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
-        b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
-}
-
 static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
                                           bool idle) {
         u16 pu_delay = 1050;
@@ -3367,28 +3375,6 @@ static void b43legacy_op_stop(struct ieee80211_hw *hw)
         mutex_unlock(&wl->mutex);
 }
 
-static int b43legacy_op_set_retry_limit(struct ieee80211_hw *hw,
-                                        u32 short_retry_limit,
-                                        u32 long_retry_limit)
-{
-        struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
-        struct b43legacy_wldev *dev;
-        int err = 0;
-
-        mutex_lock(&wl->mutex);
-        dev = wl->current_dev;
-        if (unlikely(!dev ||
-                     (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED))) {
-                err = -ENODEV;
-                goto out_unlock;
-        }
-        b43legacy_set_retry_limits(dev, short_retry_limit, long_retry_limit);
-out_unlock:
-        mutex_unlock(&wl->mutex);
-
-        return err;
-}
-
 static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
                                        struct ieee80211_sta *sta, bool set)
 {
@@ -3414,7 +3400,6 @@ static const struct ieee80211_ops b43legacy_hw_ops = {
         .get_tx_stats           = b43legacy_op_get_tx_stats,
         .start                  = b43legacy_op_start,
         .stop                   = b43legacy_op_stop,
-        .set_retry_limit        = b43legacy_op_set_retry_limit,
         .set_tim                = b43legacy_op_beacon_set_tim,
 };