BPF_R1           1447 kernel/bpf/core.c 		BPF_R0 = (__bpf_call_base + insn->imm)(BPF_R1, BPF_R2, BPF_R3,
BPF_R1           1452 kernel/bpf/core.c 		BPF_R0 = (__bpf_call_base_args + insn->imm)(BPF_R1, BPF_R2,
BPF_R1           1587 kernel/bpf/core.c 	BPF_R1 = r1; \