[ath9k-devel] [NOT FOR MERGE] ath9k: work around key cache corruption

[Antonio Quartulli <a@unstable.cc>]

Hello,

I am trying to understand what's required by this patch to be merged upstream.
Sven Eckelmann commented in another email by saying:

"The patch itself has (at least) one big problem. It is using some mac80211
internals in ath_key_config_iter to make sure that the uploaded keys were
actually programmed in the hardware. Without this check the keys could end up
in the lower slots and thus break all connections."


Does anybody else have any other additional comment?
(Please keep me in CC as I am not registered to the ath9k ML).

Cheers,

On Tue, Oct 18, 2016 at 04:35:52PM +0800, Antonio Quartulli wrote:
> From: Antonio Quartulli <antonio@open-mesh.com>
> 
> This patch was crafted long time ago to work around a key cache
> corruption problem on ath9k chipsets.
> 
> The workaround consists in periodically triggering a worker that
> uploads all the keys to the HW cache. The worker is triggered also
> when the vif detects 21 undecryptable packets.
> 
> 
> This patch is based on top compat-wireless-2015-10-26.
> 
> 
> I was asked to release this code to the public and, since it is
> GPL, I am now doing it.
> 
> 
> Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>

-- 
Antonio Quartulli
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