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    SubjectRe: [PATCH bpf-next v3 2/2] bpf: Make BPF_JIT_DEFAULT_ON selectable in Kconfig
    On Tue, Feb 22, 2022 at 1:57 AM Tiezhu Yang <yangtiezhu@loongson.cn> wrote:
    >
    > Currently, only x86, arm64 and s390 select ARCH_WANT_DEFAULT_BPF_JIT,
    > the other archs do not select ARCH_WANT_DEFAULT_BPF_JIT. On the archs
    > without ARCH_WANT_DEFAULT_BPF_JIT, if we want to set bpf_jit_enable to
    > 1 by default, the only way is to enable CONFIG_BPF_JIT_ALWAYS_ON, then
    > the users can not change it to 0 or 2, it seems bad for some users. We
    > can select ARCH_WANT_DEFAULT_BPF_JIT for those archs if it is proper,
    > but at least for now, make BPF_JIT_DEFAULT_ON selectable can give them
    > a chance.
    >
    > Additionally, with this patch, under !BPF_JIT_ALWAYS_ON, we can disable
    > BPF_JIT_DEFAULT_ON on the archs with ARCH_WANT_DEFAULT_BPF_JIT when make
    > menuconfig, it seems flexible for some developers.
    >
    > Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>

    Acked-by: Song Liu <songliubraving@fb.com>

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