bpf_strtol 437 kernel/bpf/helpers.c BPF_CALL_4(bpf_strtol, const char *, buf, size_t, buf_len, u64, flags, bpf_strtol 453 kernel/bpf/helpers.c .func = bpf_strtol, bpf_strtol 221 tools/testing/selftests/bpf/bpf_helpers.h static int (*bpf_strtol)(const char *buf, unsigned long long buf_len,