[PATCH v3 net-next 09/12] net: mscc: ocelot: allow ocelot_stat_layout elements with no name

Vladimir Oltean
2023-01-17T09:04:32Z

We will add support for pMAC counters and MAC merge layer counters,
which are only reported via the structured stats, and the current
ocelot_get_strings() stands in our way, because it expects that the
statistics should be placed in the data array at the same index as found
in the ocelot_stats_layout array.

That is not true. Statistics which don't have a name should not be
exported to the unstructured ethtool -S, so we need to have different
indices into the ocelot_stats_layout array (i) and into the data array
(data itself).

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
v2->v3: none
v1->v2: patch is new (v1 was written for enetc)

drivers/net/ethernet/mscc/ocelot_stats.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot_stats.c b/drivers/net/ethernet/mscc/ocelot_stats.c
index 1478c3b21af1..01306172b7f7 100644
--- a/drivers/net/ethernet/mscc/ocelot_stats.c
+++ b/drivers/net/ethernet/mscc/ocelot_stats.c
@@ -315,8 +315,8 @@ void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data)
if (ocelot_stats_layout[i].name[0] == '\0')
continue;

- memcpy(data + i * ETH_GSTRING_LEN, ocelot_stats_layout[i].name,
- ETH_GSTRING_LEN);
+ memcpy(data, ocelot_stats_layout[i].name, ETH_GSTRING_LEN);
+ data += ETH_GSTRING_LEN;
}
}
EXPORT_SYMBOL(ocelot_get_strings);
--
2.34.1