[PATCH bpf-next v3 14/15] selftests/xsk: automatically restore packet stream

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From: Magnus Karlsson <magnus.karlsson@xxxxxxxxx>

Automatically restore the default packet stream if needed at the end
of each test. This so that test writers do not forget to do this.

Signed-off-by: Magnus Karlsson <magnus.karlsson@xxxxxxxxx>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
---
 tools/testing/selftests/bpf/xskxceiver.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index 11e4f29d40f7..66863504c76a 100644
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -1501,8 +1501,6 @@ static void testapp_stats_tx_invalid_descs(struct test_spec *test)
 	pkt_stream_replace_half(test, XSK_UMEM__INVALID_FRAME_SIZE, 0);
 	test->ifobj_tx->validation_func = validate_tx_invalid_descs;
 	testapp_validate_traffic(test);
-
-	pkt_stream_restore_default(test);
 }
 
 static void testapp_stats_rx_full(struct test_spec *test)
@@ -1518,8 +1516,6 @@ static void testapp_stats_rx_full(struct test_spec *test)
 	test->ifobj_rx->release_rx = false;
 	test->ifobj_rx->validation_func = validate_rx_full;
 	testapp_validate_traffic(test);
-
-	pkt_stream_restore_default(test);
 }
 
 static void testapp_stats_fill_empty(struct test_spec *test)
@@ -1534,8 +1530,6 @@ static void testapp_stats_fill_empty(struct test_spec *test)
 	test->ifobj_rx->use_fill_ring = false;
 	test->ifobj_rx->validation_func = validate_fill_empty;
 	testapp_validate_traffic(test);
-
-	pkt_stream_restore_default(test);
 }
 
 /* Simple test */
@@ -1568,7 +1562,6 @@ static bool testapp_unaligned(struct test_spec *test)
 	test->ifobj_rx->pkt_stream->use_addr_for_fill = true;
 	testapp_validate_traffic(test);
 
-	pkt_stream_restore_default(test);
 	return true;
 }
 
@@ -1578,7 +1571,6 @@ static void testapp_single_pkt(struct test_spec *test)
 
 	pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts));
 	testapp_validate_traffic(test);
-	pkt_stream_restore_default(test);
 }
 
 static void testapp_invalid_desc(struct test_spec *test)
@@ -1619,7 +1611,6 @@ static void testapp_invalid_desc(struct test_spec *test)
 
 	pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts));
 	testapp_validate_traffic(test);
-	pkt_stream_restore_default(test);
 }
 
 static void testapp_xdp_drop(struct test_spec *test)
@@ -1640,7 +1631,6 @@ static void testapp_xdp_drop(struct test_spec *test)
 	pkt_stream_receive_half(test);
 	testapp_validate_traffic(test);
 
-	pkt_stream_restore_default(test);
 	xsk_detach_xdp_program(ifobj->ifindex, ifobj->xdp_flags);
 	err = xsk_attach_xdp_program(ifobj->xdp_progs->progs.xsk_def_prog, ifobj->ifindex,
 				     ifobj->xdp_flags);
@@ -1659,8 +1649,6 @@ static void testapp_poll_txq_tmout(struct test_spec *test)
 	test->ifobj_tx->umem->frame_size = 2048;
 	pkt_stream_replace(test, 2 * DEFAULT_PKT_CNT, 2048);
 	testapp_validate_traffic_single_thread(test, test->ifobj_tx);
-
-	pkt_stream_restore_default(test);
 }
 
 static void testapp_poll_rxq_tmout(struct test_spec *test)
@@ -1766,8 +1754,6 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_
 		test->ifobj_rx->umem->frame_size = 2048;
 		pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE);
 		testapp_validate_traffic(test);
-
-		pkt_stream_restore_default(test);
 		break;
 	case TEST_TYPE_RX_POLL:
 		test->ifobj_rx->use_poll = true;
@@ -1822,6 +1808,7 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_
 	if (!test->fail)
 		ksft_test_result_pass("PASS: %s %s%s\n", mode_string(test), busy_poll_string(test),
 				      test->name);
+	pkt_stream_restore_default(test);
 }
 
 static struct ifobject *ifobject_create(void)
-- 
2.34.1




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