[PATCH] visws build fix

Fix this:

> Subject    : CONFIG_X86_VISWS=3Dy, CONFIG_SMP=3Dn compile error
> References : http://lkml.org/lkml/2006/10/7/51


> Submitter  : Jesper Juhl <jesper.juhl@gmail.com>
> Caused-By  : David Howells <dhowells@redhat.com>
>              commit 7d12e780
> Status     : unknown

Via undescribed means.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>