Re: NAK new drivers without proper power management?

[Geert Uytterhoeven <geert@linux-m68k.org>]

On Sat, 10 Feb 2007, Rafael J. Wysocki wrote:
> What about this:
> 
> "If the device requires that, implement .suspend and .resume or at least
                                                                  ^^^^^^^^
> define .suspend that will always return -ENOSYS (then people will know they
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> have to unload the driver before the suspend).  Similarly, if you aren't sure
> whether or not the device requires .suspend and .resume, define .suspend that
                                                           ^^^^^^^^^^^^^^^^^^^^
> will always return -ENOSYS."
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Can't the upper layer just assume -ENOSYS if .resume/.suspend is NULL?
It's nicer if you don't have to implement dummy functions at all.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/