From: Tejun Heo <htejun@gmail.com>
Date: Mon, 7 Apr 2008 13:47:21 +0000 (+0900)
Subject: libata: make SFF support optional
X-Git-Tag: v2.6.26-rc1~1150^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=127102aea2ea9ec4e9ca233e2b1a75c8d3b058c4;p=pandora-kernel.git

libata: make SFF support optional

Now that SFF support is completely separated out from the core layer,
it can be made optional.  Add CONFIG_ATA_SFF and let SFF drivers
depend on it.  If CONFIG_ATA_SFF isn't set, all codes in libata-sff.c
and data structures for SFF support are disabled.  This saves good
number of bytes for small systems.

Signed-off-by: Tejun Heo <htejun@gmail.com>
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