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| author | Mohammed Shafi Shajakhan <mshajakhan@atheros.com> | 2011-03-04 23:00:30 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-14 14:17:33 -0700 |
| commit | 4ae96ec5efcee1c3a5d6665e714d2e7add9533ea (patch) | |
| tree | 1542f0e30b963ddb54439e45456e00f4e12219de /net/lapb/lapb_iface.c | |
| parent | 5f7d5448e9d9b8f7edd354289a4acc0852a7178d (diff) | |
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 <thomas@archlinux.org>
Acked-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/lapb/lapb_iface.c')
0 files changed, 0 insertions, 0 deletions