Messages in this thread |  | | Date | Wed, 24 Jul 2002 18:17:17 -0700 (PDT) | | From | Linus Torvalds <> | | Subject | Re: i810_audio.c cli/sti fix |
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On Wed, 24 Jul 2002, Greg KH wrote: > > Here's a small patch to get the i810_audio.c driver working again.
Hmm..
> @@ -2814,15 +2814,15 @@ > } > dmabuf->count = dmabuf->dmasize; > outb(31,card->iobase+dmabuf->write_channel->port+OFF_LVI); > - save_flags(flags); > - cli(); > + local_irq_save(flags); > + local_irq_disable();
First off, "local_irq_save()" does both the save and the disable (the same way "spin_lock_irqsave()" does), it's the "local_save_flags(") that is equivalent to the old plain save_flags. So this should just be
local_irq_save(flags);
However, I also wonder if the code doesn't want any SMP locking? Is it ok to just make it a non-spinlock local interrupt disable, and if so, why?
Linus
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