From: James Hogan <james.hogan@imgtec.com>
Date: Fri, 23 Nov 2012 16:13:05 +0000 (+0000)
Subject: asm-generic/io.h: check CONFIG_VIRT_TO_BUS
X-Git-Tag: v3.9-rc1~7^2~60
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c93d03123169357afde2d9b20dfbf9675295668f;p=pandora-kernel.git

asm-generic/io.h: check CONFIG_VIRT_TO_BUS

Make asm-generic/io.h check CONFIG_VIRT_TO_BUS before defining
virt_to_bus() and bus_to_virt(), otherwise it's easy to accidentally
have a silently failing incorrect direct mapped definition rather then
no definition at all.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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