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



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