[ewg] Re: [PATCH 2/14] nes: device structures and defines
Jeff Garzik
jeff at garzik.org
Wed Aug 8 09:25:14 PDT 2007
Roland Dreier wrote:
> > But there are indeed a few cases that look wrong.
>
> yes...
>
> > arch/x86_64/kernel/pci-calgary.c: writel(cpu_to_be32(val), target);
>
> eg this almost certainly wants to be
>
> writel(swab32(val), target);
>
> or something equivalent like
>
> __raw_writel(cpu_to_be32(val), target);
> /* plus some suffficent memory ordering */
Precisely. Some of those cases are "we know the underlying writel()
swaps... we want to swap in this case anyway"
Jeff
More information about the ewg
mailing list