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