Nowdays you can ask for an IRQ to be allocated but not enabled, when PCMCIA
was written this was not true and this feature is thus not used
[linux@dominikbrodowski.net: add comment and ifdef to avoid compilation
breakage at least on alpha] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>