minstrel_ht: fixed rate mode through debugfs

Found several threads about fixed rate mode in minstrel_ht for test
environments, but no patches for it.

This patch provides such a mode through debugfs.

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

1 files changed, 9 insertions, 0 deletions

diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 8adac67395f7..58a89554b788 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -532,12 +532,21 @@ minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
         mp->hw = hw;
         mp->update_interval = 100;
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+        mp->fixed_rate_idx = (u32) -1;
+        mp->dbg_fixed_rate = debugfs_create_u32("fixed_rate_idx",
+                        S_IRUGO | S_IWUGO, debugfsdir, &mp->fixed_rate_idx);
+#endif
+
         return mp;
 }
 
 static void
 minstrel_free(void *priv)
 {
+#ifdef CONFIG_MAC80211_DEBUGFS
+        debugfs_remove(((struct minstrel_priv *)priv)->dbg_fixed_rate);
+#endif
         kfree(priv);
 }