The get_next_frame() function in psock_tpacket.c was missing a return statement in its default switch case, leading to a compiler warning.

This was caused by a `bug_on(1)` call, which is defined as an `assert()`, being compiled out because NDEBUG is defined during the build.

Instead of adding a `return NULL;` which would silently hide the error and could lead to crashes later, this change restores the original author's intent. By adding `#undef NDEBUG` before including <assert.h>, we ensure the assertion is active and will cause the test to abort if this unreachable code is ever executed.

Signed-off-by: Wake Liu wakel@google.com --- tools/testing/selftests/net/psock_tpacket.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/net/psock_tpacket.c b/tools/testing/selftests/net/psock_tpacket.c index 0dd909e325d9..2938045c5cf9 100644 --- a/tools/testing/selftests/net/psock_tpacket.c +++ b/tools/testing/selftests/net/psock_tpacket.c @@ -22,6 +22,7 @@ * - TPACKET_V3: RX_RING */

+#undef NDEBUG #include <stdio.h> #include <stdlib.h> #include <sys/types.h>