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    SubjectRe: Being more anal about iospace accesses..
    On Wed, Sep 15, 2004 at 10:57:25AM -0700, Linus Torvalds wrote:
    > So you can absolutely still continue with
    > struct mydev_iolayout {
    > __u32 status;
    > __u32 irqmask;
    > ...
    > struct mydev_iolayout __iomem *regs = pci_map(...);
    > status = ioread32(&regs.status);
    > which is often a lot more readable, and thus in fact _preferred_. It also
    > adds another level of type-checking, so I applaud drivers that do this.

    Currently a few drivers do:
    status = readl(&regs.status);
    which causes sparse warnings.

    How should that code be changed to prevent this? Convert them all to
    ioread32()? Or figure out a way to supress the warning for readl()?


    greg k-h
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