[REGRESSION][v3.5] iwlwifi: include rssi as part of decision makingfor reduce txpower

From: Joseph Salisbury
Date: Fri Aug 03 2012 - 12:24:32 EST


Hello,

A bug[0] was reported against Ubuntu that reports a kernel panic when using the hotkey to disable then re-enable wifi on a Dell XPS 14z. A kernel bisect was performed, which indicated the following commit as the source of the regression:


commit dd551ab7b47ace14753b0d73f79437cc35adcf6b
Author: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
Date: Thu May 3 14:22:01 2012 -0700

iwlwifi: include rssi as part of decision making for reduce txpower

In bt coex, consider the average rssi as part of decision making process

Change-Id: I8d11d7f177a6875e2a9d08f7539d42253226fd7a
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
Reviewed-on: http://git-mwg.jer.intel.com/gerrit/1945
Tested-by: Jenkins
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>

A test kernel was created with this commit reverted, which stopped the kernel panic from occurring.

A bugzilla bug[1] has been opened.

Thanks,

Joe


[0] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1029547
[1] https://bugzilla.kernel.org/show_bug.cgi?id=45491
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