jit_sysctl 199 tools/testing/selftests/bpf/test_progs.c const char *jit_sysctl = "/proc/sys/net/core/bpf_jit_enable"; jit_sysctl 203 tools/testing/selftests/bpf/test_progs.c sysctl_fd = open(jit_sysctl, 0, O_RDONLY);