Re: [PATCH 5 of 13] ipath - use proper address translation routine
From: Bryan O'Sullivan
Date: Mon May 01 2006 - 15:02:56 EST
On Mon, 2006-05-01 at 11:50 -0700, Roland Dreier wrote:
> Bryan> Move away from an obsolete, unportable routine for
> Bryan> translating physical addresses.
>
> This change:
>
> > - isge->vaddr = bus_to_virt(sge->addr);
> > + isge->vaddr = phys_to_virt(sge->addr);
>
> is really wrong. bus_to_virt() is really what you want, because in
> this case the address is a bus address that came from dma_map_xxx().
Well, bus_to_virt is not portable, so we definitely can't use it. I'll
have to do some thinking about this.
<b
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/