Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK

From: H. Peter Anvin
Date: Wed Feb 27 2013 - 17:19:56 EST


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.

-hpa


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/