在 2025-07-03星期四的 20:31 +0800，Hengqi Chen写道： > On Tue, Jul 1, 2025 at 3:41 PM Haoran Jiang < > jianghaoran@xxxxxxxxxx > > wrote: > > 1,Fix the jmp_offset calculation error in the > > emit_bpf_tail_call function. > > 2,Fix the issue that MAX_TAIL_CALL_CNT limit bypass in hybrid > > tailcall and BPF-to-BPF call > > > > After applying this patch, testing results are as follows: > > > > ./test_progs --allow=tailcalls/tailcall_bpf2bpf_hierarchy_1 > > 413/18 tailcalls/tailcall_bpf2bpf_hierarchy_1:OK > > 413 tailcalls:OK > > Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED > > > > ./test_progs --allow=tailcalls/tailcall_bpf2bpf_hierarchy_2 > > 413/23 tailcalls/tailcall_bpf2bpf_hierarchy_2:OK > > 413 tailcalls:OK > > Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED > > > > ./test_progs --allow=tailcalls/tailcall_bpf2bpf_hierarchy_3 > > 413/24 tailcalls/tailcall_bpf2bpf_hierarchy_3:OK > > 413 tailcalls:OK > > Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED > > > > Thanks for the fixes. Will review this series soon. > BTW, do you test other tailcall test cases ? > > Cheers, > --- > Hengqi > tailcall_1/tailcall_2/tailcall_3/tailcall_4/tailcall_5/tailcall_6/t ailcall_bpf2bpf_1/tailcall_bpf2bpf_2/tailcall_bpf2bpf_3/tailcall_bp f2bpf_4/tailcall_bpf2bpf_5/tailcall_bpf2bpf_6 /tailcall_bpf2bpf_hierarchy_1/tailcall_bpf2bpf_hierarchy_2/tailcall _bpf2bpf_hierarchy_3/tailcall_failure These test cases passed tailcall_bpf2bpf_fentry/tailcall_bpf2bpf_fexit/tailcall_bpf2bpf_fen try_fexit/tailcall_bpf2bpf_fentry_entry/tailcall_bpf2bpf_hierarchy_ fentry/tailcall_bpf2bpf_hierarchy_fexit /tailcall_bpf2bpf_hierarchy_fentry_fexit/tailcall_bpf2bpf_hierarchy _fentry_entry/tailcall_freplace/tailcall_bpf2bpf_freplace These test cases depend on the trampoline capability, which is currently under review in the Linux kernel. These two patches are relatively independent. Could we prioritize reviewing the fixes above first? Trampoline-dependent changes will be implemented after trampoline is merged. thanks > > > Haoran Jiang (2): > > LoongArch: BPF: Optimize the calculation method of jmp_offset in the > > emit_bpf_tail_call function > > LoongArch: BPF: Fix tailcall hierarchy > > > > arch/loongarch/net/bpf_jit.c | 140 ++++++++++++++++++++--------------- > > 1 file changed, 80 insertions(+), 60 deletions(-) > > > > -- > > 2.43.0 > >
