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    SubjectRe: [PATCH] NVMe: Fix compilation on architecturs without readq/writeq
    On Mon, Jan 30, 2012 at 7:03 PM, Linus Torvalds
    <torvalds@linux-foundation.org> wrote:
    >  val |= readl(addr+4) << 32;

    Oops. That needs a cast to u64 before the shift, of course.

    Take all code I write in emails with a pinch of salt - think of it
    more as pseudo-code than something that necessarily would work as-is.

    Linus
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