On Mon, 10 Jan 2022 12:29:42 +0000, Christophe Leroy wrote:
> BPF_REG_5, BPF_REG_AX and TMP_REG are mapped on non volatile registers
> because there are not enough volatile registers, but they don't need
> to be preserved on function calls.
>
> So when some volatile registers become available, those registers can
> always be reallocated regardless of whether SEEN_FUNC is set or not.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/bpf: Always reallocate BPF_REG_5, BPF_REG_AX and TMP_REG when
possible
https://git.kernel.org/powerpc/c/a8936569a07bf27cc9cfc2a39a1e5ea91273b2d4
cheers
