Re: [PATCH v6] introduce macro spin_event_timeout()

[Timur Tabi <timur@freescale.com>]

On Mon, Apr 27, 2009 at 2:05 PM, Timur Tabi <timur@freescale.com> wrote:
> The macro spin_event_timeout() takes a condition and timeout value
> (in microseconds) as parameters. =A0It spins until either the condition i=
s true
> or the timeout expires. =A0It returns the result of the condition when th=
e loop
> was terminated.
>
> This primary purpose of this macro is to poll on a hardware register unti=
l a
> status bit changes. =A0The timeout ensures that the loop still terminates=
 if the
> bit doesn't change as expected. =A0This macro makes it easier for driver
> developers to perform this kind of operation properly.

Any comments on this patch?  I'd like to see this macro added to 2.6.31.

--=20
Timur Tabi
Linux kernel developer at Freescale