mac80211: Add new API for rate selection

This patch adds a new API for setting a TX rate mask in
drivers that have rate control in either the firmware or hardware.
This can be used for various purposes, for example, masking out the
11b rates in P2P operation.

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

1 files changed, 6 insertions, 9 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a9ddaf63ee14..12d52cec9515 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1633,16 +1633,13 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-        int i;
-
-        /*
-         * This _could_ be supported by providing a hook for
-         * drivers for this function, but at this point it
-         * doesn't seem worth bothering.
-         */
-        if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
-                return -EOPNOTSUPP;
+        int i, ret;
 
+        if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
+                ret = drv_set_bitrate_mask(local, sdata, mask);
+                if (ret)
+                        return ret;
+        }
 
         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;