diff mbox series

[v3,05/10] net/mvpp2: adjust retval when xstats is null of get xstats

Message ID 20220505080233.12737-6-fengchengwen@huawei.com (mailing list archive)
State Superseded, archived
Delegated to: Andrew Rybchenko
Headers
Series bugfix for ethdev telemetry |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Chengwen Feng May 5, 2022, 8:02 a.m. UTC 
  Many user (e.g. telemetry) invokes rte_eth_xstats_get(port_id, NULL, 0)
to retrieve the required number of elements, but currently mvpp2 PMD
returns zero when xstats is NULL.

This patch adjusts that the return value was the required number of
elements when stats is NULL.

Fixes: a77b5378cd41 ("net/mrvl: add extended statistics")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
 drivers/net/mvpp2/mrvl_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c
index f86701d248..9781a0a411 100644
--- a/drivers/net/mvpp2/mrvl_ethdev.c
+++ b/drivers/net/mvpp2/mrvl_ethdev.c
@@ -1629,7 +1629,7 @@  mrvl_xstats_get(struct rte_eth_dev *dev,
 	unsigned int i;
 
 	if (!stats)
-		return 0;
+		return RTE_DIM(mrvl_xstats_tbl);
 
 	pp2_ppio_get_statistics(priv->ppio, &ppio_stats, 0);
 	for (i = 0; i < n && i < RTE_DIM(mrvl_xstats_tbl); i++) {