From cc65965cbb24d2ca2bb70f26cac9d7243349e7e3 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Thu, 14 May 2009 21:28:48 +0300 Subject: [PATCH] ath9k: Fix PS mode operation to receive buffered broadcast/multicast frames The previous implementation was moving back to NETWORK SLEEP state immediately after receiving a Beacon frame. This means that we are unlikely to receive all the buffered broadcast/multicast frames that would be sent after DTIM Beacon frames. Fix this by parsing the Beacon frame and remaining awake, if needed, to receive the buffered broadcast/multicast frames. The last buffered frame will trigger the move back into NETWORK SLEEP state. If the last broadcast/multicast frame is not received properly (or if the AP fails to send it), the next Beacon frame will work as a backup trigger for returning into NETWORK SLEEP. A new debug type, PS (debug=0x800 module parameter), is added to make it easier to debug potential power save issues in the future. Currently, this is only used for the Beacon frame and buffered broadcast/multicast receiving. Signed-off-by: Jouni Malinen Signed-off-by: John W. Linville --- Reading git-format-patch failed