diff options
| -rw-r--r-- | samples/bpf/syscall_tp_user.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/samples/bpf/syscall_tp_user.c b/samples/bpf/syscall_tp_user.c index 18c94c7e8a40..7a09ac74fac0 100644 --- a/samples/bpf/syscall_tp_user.c +++ b/samples/bpf/syscall_tp_user.c @@ -48,7 +48,7 @@ static void verify_map(int map_id) static int test(char *filename, int nr_tests) { int map0_fds[nr_tests], map1_fds[nr_tests], fd, i, j = 0; - struct bpf_link *links[nr_tests * 4]; + struct bpf_link **links = NULL; struct bpf_object *objs[nr_tests]; struct bpf_program *prog; @@ -60,6 +60,19 @@ static int test(char *filename, int nr_tests) goto cleanup; } + /* One-time initialization */ + if (!links) { + int nr_progs = 0; + + bpf_object__for_each_program(prog, objs[i]) + nr_progs += 1; + + links = calloc(nr_progs * nr_tests, sizeof(struct bpf_link *)); + + if (!links) + goto cleanup; + } + /* load BPF program */ if (bpf_object__load(objs[i])) { fprintf(stderr, "loading BPF object file failed\n"); @@ -107,8 +120,12 @@ static int test(char *filename, int nr_tests) } cleanup: - for (j--; j >= 0; j--) - bpf_link__destroy(links[j]); + if (links) { + for (j--; j >= 0; j--) + bpf_link__destroy(links[j]); + + free(links); + } for (i--; i >= 0; i--) bpf_object__close(objs[i]); |