Re: [PATCH][ATM] assorted he driver cleanup

From: Alan Cox (
Date: Sun Jun 01 2003 - 15:00:15 EST

On Sul, 2003-06-01 at 19:57, chas williams wrote:
> In message <>,Arnaldo Carvalho de Melo writes:
> >Sure thing, but hey, spin_lock_irqsave and friends take care of how to behave
> >when in up or smp, i.e. its how all the other drivers use spinlocks 8)
> but on a single processor machine (i.e. #undef CONFIG_SMP) there is no
> chance that there will be reads/writes from other processors so i dont
> need any locking OR protection from interrupts. so the degenerate case
> of spin_lock_irqsave() isnt quite as dengerate as i would like for this
> particular spin lock.

Then why are you using spin_lock_irqsave ?

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