Messages in this thread | | | Date | Thu, 7 Jun 2018 11:18:16 +0200 | From | Johan Hovold <> | Subject | Re: [PATCH v5 2/4] kernel hacking: new config NO_AUTO_INLINE to disable compiler auto-inline optimizations |
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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
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