On Thu, Jun 07, 2018 at 02:40:25PM +0530, Viresh Kumar wrote: > On 07-06-18, 11:03, Bernd Petrovitsch wrote: > > On Thu, 2018-06-07 at 14:08 +0530, Viresh Kumar wrote: > > > On 07-06-18, 15:46, Du, Changbin wrote: > > > > I think if the destination is not a null terminated string (If I understand your > > > > description below), memcpy can be used to get rid of such warning. The warning > > > > makes sense in general as explained in mannual. Thanks! > > > > > > The destination should be a null terminated string eventually, but we first need > > > to make sure src is a null terminated string. > > > > Is there strnlen() or memchr() in the kernel? > > Then check the source before copying it. > > It would be extra work, but memchr can be used to work around this I believe. > > @Johan ?? If you want to work around the warning and think you can do it in some non-contrived way, then go for it. Clearing the request buffer, checking for termination using strnlen, and then using memcpy might not be too bad. But after all, it is a false positive, so leaving things as they stand is fine too. Thanks, Johan -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
