package/mac80211/patches/810-p54-fix-ps.patch

   1 From: Christian Lamparter <chunkeey@googlemail.com>
   2
   3 Michael reported that p54* never really entered power
   4 save mode, even tough it was enabled.
   5
   6 It turned out that upon a power save mode change the
   7 firmware will set a special flag onto the last outgoing
   8 frame tx status (which in this case is almost always the
   9 designated PSM nullfunc frame). This flag confused the
  10 driver; It erroneously reported transmission failures
  11 to the stack, which then generated the next nullfunc.
  12 and so on...
  13
  14 Cc: <stable@kernel.org>
  15 Reported-by: Michael Buesch <mb@bu3sch.de>
  16 Tested-by: Michael Buesch <mb@bu3sch.de>
  17 Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
  18 ---
  19 ---
  20  drivers/net/wireless/p54/txrx.c |    2 +-
  21  1 file changed, 1 insertion(+), 1 deletion(-)
  22
  23 --- compat-wireless-2010-07-29.orig/drivers/net/wireless/p54/txrx.c
  24 +++ compat-wireless-2010-07-29/drivers/net/wireless/p54/txrx.c
  25 @@ -446,7 +446,7 @@ static void p54_rx_frame_sent(struct p54
  26         }
  27
  28         if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
  29 -            (!payload->status))
  30 +            !(payload->status & P54_TX_FAILED))
  31                 info->flags |= IEEE80211_TX_STAT_ACK;
  32         if (payload->status & P54_TX_PSM_CANCELLED)
  33                 info->flags |= IEEE80211_TX_STAT_TX_FILTERED;