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    Subject[RESEND PATCH bpf-next 0/2] Jit BPF_CALL to direct call when possible
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    Currently BPF_CALL is always jited to indirect call, but when target is
    in the range of direct call, a BPF_CALL can be jited to direct call.

    For example, the following BPF_CALL

    call __htab_map_lookup_elem

    is always jited to an indirect call:

    mov x10, #0xffffffffffff18f4
    movk x10, #0x821, lsl #16
    movk x10, #0x8000, lsl #32
    blr x10

    When the target is in the range of a direct call, it can be jited to:

    bl 0xfffffffffd33bc98

    This patchset does such jit.

    Xu Kuohai (2):
    bpf, arm64: Jit BPF_CALL to direct call when possible
    bpf, arm64: Eliminate false -EFBIG error in bpf trampoline

    arch/arm64/net/bpf_jit_comp.c | 136 ++++++++++++++++++++++------------
    1 file changed, 87 insertions(+), 49 deletions(-)

    --
    2.30.2

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