On 02/27/2013 03:19 PM, Stephen Boyd wrote: > 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/ > I can, although I would prefer if it came with the uaccess/usercopy unification. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
