On 02/27/13 14:55, H. Peter Anvin wrote: > On 02/27/2013 02:52 PM, Stephen Boyd wrote: >> On 02/27/13 14:19, H. Peter Anvin wrote: >>> On 02/27/2013 12:42 PM, Stephen Boyd wrote: >>>>> It's fine to do your patch as a first step though, which would not >>>>> change the behavior. >>>> A lot of arches seem to not want to enable it because false positives >>>> are everywhere. It really depends on how good the compiler is at doing >>>> constant propagation and dead code removal. >>>> >>> Although some of the cases I have seen being flagged as "false >>> positives" have been real bugs. >> There were so many false-positives on x86_64 that Andrew eventually >> dropped my patch to add support for this option to the copy_from_user() >> function there. >> > I would probably have taken it, especially if it came with more x86-64 > to i386 unification. > > It's an option, though. You acked the patch[1]. Will you pick it up? [1] https://patchwork.kernel.org/patch/833192/ -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
