[PATCH bpf v2 1/1] selftests/bpf: Actuate tx_metadata_len in xdp_hw_metadata

[Song Yoong Siang]

set XDP_UMEM_TX_METADATA_LEN flag to reserve tx_metadata_len bytes of
per-chunk metadata.

Fixes: d5e726d9143c ("xsk: Require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len")
Cc: stable@xxxxxxxxxxxxxxx # v6.11
Signed-off-by: Song Yoong Siang <yoong.siang.song@xxxxxxxxx>
Acked-by: Stanislav Fomichev <sdf@xxxxxxxxxxx>
---
v1: https://patchwork.kernel.org/project/netdevbpf/patch/20241204115715.3148412-1-yoong.siang.song@xxxxxxxxx/

v1->v2 changelog:
 - Add Fixes tag (Stanislav).
 - Add stable@xxxxxxxxxxxxxxx in email cc list.
 - Separate the patch into two, current one submit to bpf,
   another one submit to bpf-next.
 - Update the commit title.
---
 tools/testing/selftests/bpf/xdp_hw_metadata.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c
index 6f9956eed797..ad6c08dfd6c8 100644
--- a/tools/testing/selftests/bpf/xdp_hw_metadata.c
+++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c
@@ -79,7 +79,7 @@ static int open_xsk(int ifindex, struct xsk *xsk, __u32 queue_id)
 		.fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
 		.comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
 		.frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE,
-		.flags = XSK_UMEM__DEFAULT_FLAGS,
+		.flags = XDP_UMEM_TX_METADATA_LEN,
 		.tx_metadata_len = sizeof(struct xsk_tx_metadata),
 	};
 	__u32 idx = 0;
-- 
2.34.1