It uses EXPORT_SYMBOL.

arch/sh64/kernel/time.c:254: warning: type defaults to `int' in declaration of `EXPORT_SYMBOL'
arch/sh64/kernel/time.c:254: warning: parameter names (without types) in function declaration
arch/sh64/kernel/time.c:254: warning: data definition has no type or storage class
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>