Hi, The simple patchset tries to enable kfunc call for arm64. Patch #1 just overrides bpf_jit_supports_kfunc_call() to enable kfunc call and patch #2 add a test to ensure s32 is sufficient for kfunc offset. Change Log: v2: * add a test to check whether imm will be overflowed for kfunc call v1: https://lore.kernel.org/bpf/20220119144942.305568-1-houtao1@xxxxxxxxxx Hou Tao (2): bpf, arm64: enable kfunc call selftests/bpf: check whether s32 is sufficient for kfunc offset arch/arm64/net/bpf_jit_comp.c | 5 ++ .../selftests/bpf/prog_tests/ksyms_module.c | 72 +++++++++++++++++++ 2 files changed, 77 insertions(+) -- 2.27.0