>From 23d440a413208983ed8b17ac7048516f8bb9ed74 Mon Sep 17 00:00:00 2001
From: Ivo van Doorn <IvDoorn@xxxxxxxxx>
Date: Fri, 27 Jul 2007 13:58:18 +0200
Subject: [PATCH 01/24] rt2x00: Remove rt73usb_get_tsf
The get_tsf function must be atomic according to mac80211,
this means that rt73usb is not capable of supporting this feature
since all USB register access functions require sleeping.
Place rt73usb_get_tsf between #if 0 statements to disable it,
so that it can be easily readded when the atomic requirement
has been removed.
Signed-off-by: Ivo van Doorn <IvDoorn@xxxxxxxxx>
---
drivers/net/wireless/rt73usb.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/rt73usb.c b/drivers/net/wireless/rt73usb.c
index 3d838d1..bc9b56c 100644
--- a/drivers/net/wireless/rt73usb.c
+++ b/drivers/net/wireless/rt73usb.c
@@ -1723,6 +1723,13 @@ static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
return 0;
}
+#if 0
+/*
+ * Mac80211 demands get_tsf must be atomic.
+ * This is not possible for rt73usb since all register access
+ * functions require sleeping. Untill mac80211 no longer needs
+ * get_tsf to be atomic, this function should be disabled.
+ */
static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
@@ -1736,6 +1743,7 @@ static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
return tsf;
}
+#endif
static void rt73usb_reset_tsf(struct ieee80211_hw *hw)
{
@@ -1757,7 +1765,12 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = {
.set_retry_limit = rt73usb_set_retry_limit,
.conf_tx = rt2x00lib_conf_tx,
.get_tx_stats = rt2x00lib_get_tx_stats,
+#if 0
+/*
+ * See comment at the rt73usb_get_tsf function.
+ */
.get_tsf = rt73usb_get_tsf,
+#endif
.reset_tsf = rt73usb_reset_tsf,
.beacon_update = rt2x00usb_beacon_update,
};
--
1.5.2.4
-
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