Re: linux-next: build warning after merge of the tip tree

Stephen Rothwell
2020-03-31T21:58:02Z

[-- Attachment #1: Type: text/plain, Size: 828 bytes --]

Hi all,

On Mon, 30 Mar 2020 13:47:46 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Hi all,
>
> After merging the tip tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
>
> kernel/futex.c: In function 'do_futex':
> kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
> 1676 | return oldval == cmparg;
> | ~~~~~~~^~~~~~~~~
> kernel/futex.c:1652:6: note: 'oldval' was declared here
> 1652 | int oldval, ret;
> | ^~~~~~
>
> Introduced by commit
>
> a08971e9488d ("futex: arch_futex_atomic_op_inuser() calling conventions change")
>
> but I don't see how it makes this difference :-(

I now get this warning from building Linus' tree :-(

--
Cheers,
Stephen Rothwell

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]