From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Thu, 18 Apr 2013 11:33:50 +0000 (+0300)
Subject: wil6210: Use cached copy of Rx descriptor
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~43^2^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33e611690e6478ebb095e4eb755010343374a2a3;p=pandora-kernel.git

wil6210: Use cached copy of Rx descriptor

Rx descriptors stored in non-cacheable memory area for DMA.
Non-cacheable memory causes long access time from CPU.

Copy rx descriptor to the skb->cb, and use this copy.
It provides faster memory access, and will be usefull to keep
Rx information for later processing (BACK reorder)

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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