Hi,
please backport
> powerpc: Always initialize input array when calling epapr_hypercall()
> Several callers to epapr_hypercall() pass an uninitialized stack
> allocated array for the input arguments, presumably because they
> have no input arguments. However this can produce errors like
> this one
>
> arch/powerpc/include/asm/epapr_hcalls.h:470:42: error: 'in' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> unsigned long register r3 asm("r3") = in[0];
> ~~^~~
>
> Fix callers to this function to always zero-initialize the input
> arguments array to prevent this.
>
> Signed-off-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>
> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=186b8f1587c79c2fa04bfa392fdf084443e398c1
to
- 4.14.x
- 4.9.x
- 4.4.x
Downstream-Bug: https://bugs.gentoo.org/675334
--
Regards,
Thomas Deutschmann / Gentoo Linux Developer
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