From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 27 Oct 2009 19:18:46 +0000 (-0400)
Subject: USB: don't use a fixed DMA mapping for hub status URBs
X-Git-Tag: v2.6.33-rc1~315^2~93
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d697cdda43939a80432863e2e26df6701ce72b63;p=pandora-kernel.git

USB: don't use a fixed DMA mapping for hub status URBs

This patch (as1296) gets rid of the fixed DMA-buffer mapping used by
the hub driver for its status URB.  This URB doesn't get used much --
mainly when a device is plugged in or unplugged -- so the dynamic
mapping overhead is minimal.  And most systems have many fewer
external hubs than root hubs, which don't need a mapped buffer anyway.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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