netdev - [PATCH v2 bpf-next 09/10] selftests: xsk: remove struct xsk_socket_info::outstanding

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Date:   Tue, 14 Jun 2022 19:47:48 +0200
From:   Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To:     bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net
Cc:     netdev@...r.kernel.org, magnus.karlsson@...el.com,
        bjorn@...nel.org, Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH v2 bpf-next 09/10] selftests: xsk: remove struct xsk_socket_info::outstanding_tx

Previous change makes xsk->outstanding_tx a dead code, so let's remove
it.

Acked-by: Magnus Karlsson <magnus.karlsson@...el.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
---
 tools/testing/selftests/bpf/xdpxceiver.c | 20 +++-----------------
 tools/testing/selftests/bpf/xdpxceiver.h |  1 -
 2 files changed, 3 insertions(+), 18 deletions(-)

diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index 13a3b2ac2399..ade9d87e7a7c 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -815,7 +815,7 @@ static void kick_rx(struct xsk_socket_info *xsk)
 		exit_with_error(errno);
 }
 
-static int complete_pkts(struct xsk_socket_info *xsk, int batch_size)
+static void complete_pkts(struct xsk_socket_info *xsk, int batch_size)
 {
 	unsigned int rcvd;
 	u32 idx;
@@ -824,20 +824,8 @@ static int complete_pkts(struct xsk_socket_info *xsk, int batch_size)
 		kick_tx(xsk);
 
 	rcvd = xsk_ring_cons__peek(&xsk->umem->cq, batch_size, &idx);
-	if (rcvd) {
-		if (rcvd > xsk->outstanding_tx) {
-			u64 addr = *xsk_ring_cons__comp_addr(&xsk->umem->cq, idx + rcvd - 1);
-
-			ksft_print_msg("[%s] Too many packets completed\n", __func__);
-			ksft_print_msg("Last completion address: %llx\n", addr);
-			return TEST_FAILURE;
-		}
-
+	if (rcvd)
 		xsk_ring_cons__release(&xsk->umem->cq, rcvd);
-		xsk->outstanding_tx -= rcvd;
-	}
-
-	return TEST_PASS;
 }
 
 static int receive_pkts(struct ifobject *ifobj, struct pollfd *fds)
@@ -955,9 +943,7 @@ static int __send_pkts(struct ifobject *ifobject, u32 *pkt_nb)
 	pthread_mutex_unlock(&pacing_mutex);
 
 	xsk_ring_prod__submit(&xsk->tx, i);
-	xsk->outstanding_tx += valid_pkts;
-	if (complete_pkts(xsk, i))
-		return TEST_FAILURE;
+	complete_pkts(xsk, i);
 
 	usleep(10);
 	return TEST_PASS;
diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h
index f364a92675f8..12b792004163 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.h
+++ b/tools/testing/selftests/bpf/xdpxceiver.h
@@ -104,7 +104,6 @@ struct xsk_socket_info {
 	struct xsk_ring_prod tx;
 	struct xsk_umem_info *umem;
 	struct xsk_socket *xsk;
-	u32 outstanding_tx;
 	u32 rxqsize;
 };
 
-- 
2.27.0