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mac80211: Retry null data frame for power save

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commit 375177bf35 upstream.

Even if the null data frame is not acked by the AP, mac80211
goes into power save. This might lead to loss of frames
from the AP.
Prevent this by restarting dynamic_ps_timer when ack is not
received for null data frames.

Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Vivek Natarajan
2010-03-11 13:10:03 -08:00
committed by Greg Kroah-Hartman
parent 525ad99558
commit 10275a53c5
4 changed files with 35 additions and 5 deletions
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4
include/net/mac80211.h
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@@ -908,6 +908,9 @@ enum ieee80211_tkip_key_type {
* @IEEE80211_HW_BEACON_FILTER:
* Hardware supports dropping of irrelevant beacon frames to
* avoid waking up cpu.
* @IEEE80211_HW_REPORTS_TX_ACK_STATUS:
* Hardware can provide ack status reports of Tx frames to
* the stack.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_RX_INCLUDES_FCS = 1<<1,
@@ -924,6 +927,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_DYNAMIC_PS = 1<<12,
IEEE80211_HW_MFP_CAPABLE = 1<<13,
IEEE80211_HW_BEACON_FILTER = 1<<14,
IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<15,
};
/**