From: Mohammed Shafi Shajakhan Date: Fri, 4 Mar 2011 22:00:30 +0000 (+0100) Subject: ath9k: Fix ath9k prevents CPU to enter C3 states X-Git-Tag: v2.6.37.4~21 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ae96ec5efcee1c3a5d6665e714d2e7add9533ea;p=pandora-kernel.git ath9k: Fix ath9k prevents CPU to enter C3 states This is a backport of upstream commit 0f5cd45960173ba5b36727decbb4a241cbd35ef9. The DMA latency issue is observed only in Intel pinetrail platforms but in the driver we had a default PM-QOS value of 55. This caused unnecessary power consumption and battery drain in other platforms. Remove the pm-qos thing in the driver code and address the throughput issue in Intel pinetrail platfroms in user space using any one of the scripts in below links: http://www.kernel.org/pub/linux/kernel/people/mcgrof/scripts/cpudmalatency.c http://johannes.sipsolutions.net/files/netlatency.c.txt More details can be found in the following bugzilla link: https://bugzilla.kernel.org/show_bug.cgi?id=27532 Signed-off-by: Thomas Bächler Acked-by: Mohammed Shafi Shajakhan Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed