Andi Kleen <[EMAIL PROTECTED]> wrote: > Actually gcc is free to reorder it > (often it will not when it cannot prove that they don't alias, but sometimes > it can)
Yeah... I have mentioned the fact that compilers can reorder too, but obviously not enough. > You're not supposed to do it this way anyways. The official way to access > MMIO space is using read/write[bwlq] True, I suppose. I should make it clear that these accessor functions imply memory barriers, if indeed they do, and that you should use them rather than accessing I/O registers directly (at least, outside the arch you should). David - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
