IDE module problem

[Jun Sun <jsun@mvista.com>]

If you configure IDE support as a module (CONFIG_IDE), you
will soon find that ide-std.o and ide-no.o are missing.
This is because arch/mips/lib/Makefile says:

obj-$(CONFIG_IDE)               += ide-std.o ide-no.o


Here are the possible fixes.  I'd like to hear your feedbacks.

1) change config-shared.in file so that CONFIG_IDE only
has a binary state (y or n)

2) change Makefile so that ide-std.o and ide-no.o are always
included.  Waste about 1K for systems don't use them at all.

3) use some smart trick in Makefile so that we include those
two files only if CONFIG_IDE is 'y' or 'm'.  (How?)

Jun