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. -- 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-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
