mac80211: add multi-rate retry support

This patch adjusts the rate control API to allow multi-rate retry
if supported by the driver. The ieee80211_hw struct specifies how
many alternate rate selections the driver supports.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 9fb1421cbec2..c66d57560e7c 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3710,6 +3710,7 @@ static int b43legacy_wireless_init(struct ssb_device *dev)
                 BIT(NL80211_IFTYPE_WDS) |
                 BIT(NL80211_IFTYPE_ADHOC);
         hw->queues = 1; /* FIXME: hardware has more queues */
+        hw->max_altrates = 1;
         SET_IEEE80211_DEV(hw, dev->dev);
         if (is_valid_ether_addr(sprom->et1mac))
                 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index a894169411c5..65e833781608 100644
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -210,7 +210,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 
         rate = tx_rate->hw_value;
         rate_ofdm = b43legacy_is_ofdm_rate(rate);
-        rate_fb = ieee80211_get_alt_retry_rate(dev->wl->hw, info) ? : tx_rate;
+        rate_fb = ieee80211_get_alt_retry_rate(dev->wl->hw, info, 0) ? : tx_rate;
         rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb->hw_value);
 
         txhdr->mac_frame_ctl = wlhdr->frame_control;