asm-generic/io.h: Remove I/O port accessors for HAS_IOPORT=n

With all subsystems and drivers either declaring their dependence on
HAS_IOPORT or fencing I/O port specific code sections we can finally
make inb()/outb() and friends compile-time dependent on HAS_IOPORT as
suggested by Linus in the linked mail. The main benefit of this is that
on platforms such as s390 which have no meaningful way of implementing
inb()/outb() their use without the proper HAS_IOPORT dependency will
result in easy to catch and fix compile-time errors instead of compiling
code that can never work.

Link: https://lore.kernel.org/lkml/CAHk-=wg80je=K7madF4e7WrRNp37e3qh6y10Svhdc7O8SZ_-8g@mail.gmail.com/
Co-developed-by: Arnd Bergmann <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Niklas Schnelle <[email protected]>
Reviewed-by: Takashi Iwai <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Acked-by: Lucas De Marchi <[email protected]>
Acked-by: Maciej W. Rozycki <[email protected]>
Acked-by: Damien Le Moal <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Acked-by: Johannes Berg <[email protected]> # for ARCH=um
Acked-by: Geert Uytterhoeven <[email protected]>
Acked-by: Kalle Valo <[email protected]>
Acked-by: Jakub Kicinski <[email protected]>
Acked-by: Corey Minyard <[email protected]>
Acked-by: Guenter Roeck <[email protected]>
Acked-by: Damien Le Moal <[email protected]>
Acked-by: Sebastian Reichel <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

0 files changed, 0 insertions, 0 deletions