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authorMichael Büsch <mb@bu3sch.de>2010-08-25 13:46:40 +0000
committerMichael Büsch <mb@bu3sch.de>2010-08-25 13:46:40 +0000
commit5106eb903abb9b14491e2b3eb7c79afe578d2642 (patch)
tree0dc98e10f168505fb9ea362a3be474ee5410285b
parent05cf68cf4c22bc503c5f76304788e219d9079761 (diff)
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p54: Fix powersave mode
SVN-Revision: 22797
-rw-r--r--package/mac80211/patches/810-p54-fix-ps.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/package/mac80211/patches/810-p54-fix-ps.patch b/package/mac80211/patches/810-p54-fix-ps.patch
new file mode 100644
index 0000000..04f033f
--- /dev/null
+++ b/package/mac80211/patches/810-p54-fix-ps.patch
@@ -0,0 +1,33 @@
+From: Christian Lamparter <chunkeey@googlemail.com>
+
+Michael reported that p54* never really entered power
+save mode, even tough it was enabled.
+
+It turned out that upon a power save mode change the
+firmware will set a special flag onto the last outgoing
+frame tx status (which in this case is almost always the
+designated PSM nullfunc frame). This flag confused the
+driver; It erroneously reported transmission failures
+to the stack, which then generated the next nullfunc.
+and so on...
+
+Cc: <stable@kernel.org>
+Reported-by: Michael Buesch <mb@bu3sch.de>
+Tested-by: Michael Buesch <mb@bu3sch.de>
+Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
+---
+---
+ drivers/net/wireless/p54/txrx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- compat-wireless-2010-07-29.orig/drivers/net/wireless/p54/txrx.c
++++ compat-wireless-2010-07-29/drivers/net/wireless/p54/txrx.c
+@@ -446,7 +446,7 @@ static void p54_rx_frame_sent(struct p54
+ }
+
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+- (!payload->status))
++ !(payload->status & P54_TX_FAILED))
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ if (payload->status & P54_TX_PSM_CANCELLED)
+ info->flags |= IEEE80211_TX_STAT_TX_FILTERED;