linux-kernel - [PATCH v3 net-next 09/12] net: mscc: ocelot: allow ocelot_stat

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230117085947.2176464-10-vladimir.oltean@nxp.com>
Date:   Tue, 17 Jan 2023 10:59:44 +0200
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Michal Kubecek <mkubecek@...e.cz>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Xiaoliang Yang <xiaoliang.yang_1@....com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Rui Sousa <rui.sousa@....com>,
        Ferenc Fejes <ferenc.fejes@...csson.com>,
        Pranavi Somisetty <pranavi.somisetty@....com>,
        Harini Katakam <harini.katakam@....com>,
        Colin Foster <colin.foster@...advantage.com>,
        UNGLinuxDriver@...rochip.com,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH v3 net-next 09/12] net: mscc: ocelot: allow ocelot_stat_layout elements with no name

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@....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