Re: [PATCH v2 1/2] MIPS: ebpf jit: Implement DADDI workarounds

[Philippe Mathieu-Daudé]

On 28/2/23 12:33, Jiaxun Yang wrote:
> For DADDI errata we just workaround by disable immediate operation
> for BPF_ADD / BPF_SUB to avoid generation of DADDIU.
>
> All other use cases in JIT won't cause overflow thus they are all safe.
>
> Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> ---
> v2: Drop 64BIT ifdef
> ---
>   arch/mips/Kconfig            | 1 -
>   arch/mips/net/bpf_jit_comp.c | 4 ++++
>   2 files changed, 4 insertions(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>