With latest clang, I got the following compilation errors:
.../prog_tests/test_tunnel.c:291:6: error: variable 'local_ip_map_fd' is used uninitialized
whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
if (attach_tc_prog(&tc_hook, -1, set_dst_prog_fd))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.../bpf/prog_tests/test_tunnel.c:312:6: note: uninitialized use occurs here
if (local_ip_map_fd >= 0)
^~~~~~~~~~~~~~~
...
.../prog_tests/kprobe_multi_test.c:346:6: error: variable 'err' is used uninitialized
whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
if (IS_ERR(map))
^~~~~~~~~~~
.../prog_tests/kprobe_multi_test.c:388:6: note: uninitialized use occurs here
if (err) {
^~~
This patch fixed the above compilation errors.
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20220511184735.3670214-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
return -EINVAL;
map = hashmap__new(symbol_hash, symbol_equal, NULL);
- if (IS_ERR(map))
+ if (IS_ERR(map)) {
+ err = libbpf_get_error(map);
goto error;
+ }
while (fgets(buf, sizeof(buf), f)) {
/* skip modules */
{
struct test_tunnel_kern *skel = NULL;
struct nstoken *nstoken;
- int local_ip_map_fd;
+ int local_ip_map_fd = -1;
int set_src_prog_fd, get_src_prog_fd;
int set_dst_prog_fd;
int key = 0, ifindex = -1;
{
struct test_tunnel_kern *skel = NULL;
struct nstoken *nstoken;
- int local_ip_map_fd;
+ int local_ip_map_fd = -1;
int set_src_prog_fd, get_src_prog_fd;
int set_dst_prog_fd;
int key = 0, ifindex = -1;