On Tue, Dec 20, 2016 at 11:34 AM, David Binderman <[email protected]>
wrote:
>
> Hello there,
>
>> From: Alexei Starovoitov <[email protected]>
>> I've tried 4.9 and 5.2 and don't see this warning.
>
> As expected - I used a development version of gcc.
> Latest released version is 6.2
>
>> Is this 6.x gcc?
>
> 7.0 would be more accurate.
>
>> I suspect it will have such warnings all over the kernel.
>
> Indeed it has hundreds, but the subject under discussion is file
> kernel/bpf/verifier.c.
>
> I am still not sure if I have found a fallthrough bug or not.
You haven't, this is intended so is a useless warning. Thanks,
Josef