From: Dan Williams <dan.j.williams@intel.com>
Date: Thu, 7 Oct 2010 23:44:50 +0000 (-0700)
Subject: async_tx: make async_tx channel switching opt-in
X-Git-Tag: v2.6.37-rc1~79^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5fc6d897fde352bad5db5767e7260741a8cdd9e9;p=pandora-kernel.git

async_tx: make async_tx channel switching opt-in

The majority of drivers in drivers/dma/ will never establish cross
channel operation chains and do not need the extra overhead in struct
dma_async_tx_descriptor.  Make channel switching opt-in by default.

Cc: Anatolij Gustschin <agust@denx.de>
Cc: Ira Snyder <iws@ovro.caltech.edu>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---

Reading git-diff-tree failed