Dmitry Torokhov wrote:
On 10/6/06, Ingo Molnar <[EMAIL PROTECTED]> wrote:
* Jeff Garzik <[EMAIL PROTECTED]> wrote:
> >but pt_regs is alot less frequently used than irq - and where it's
> >used they arent "drivers" but mostly arch level code like hw-timer
> >handlers.
>
> Nonetheless the -vast majority- of drivers don't use the argument at
> all, and the minority that do use it are not modern drivers.
i'm all for changing that too :)
What drivers use irq argument? I know i8042 does but only to detect
whether interrupt routine was called because irq was raised or it was
called manually and I can use dev_id for that...
Ancient ISA legacys, a few powermac drivers, and a lot of printk's.
Your gut instinct is correct -- outside of printk, it is largely used to
differentiate callers.
Jeff
-
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
