linux-kernel - [PATCH net] ethtool: Fix get module eeprom fallback

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Message-Id: <20220616160856.3623273-1-ivecera@redhat.com>
Date:   Thu, 16 Jun 2022 18:08:55 +0200
From:   Ivan Vecera <ivecera@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Michal Kubecek <mkubecek@...e.cz>,
        Ido Schimmel <idosch@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Vladyslav Tarasiuk <vladyslavt@...dia.com>,
        Andrew Lunn <andrew@...n.ch>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net] ethtool: Fix get module eeprom fallback

Function fallback_set_params() checks if the module type returned
by a driver is ETH_MODULE_SFF_8079 and in this case it assumes
that buffer returns a concatenated content of page  A0h and A2h.
The check is wrong because the correct type is ETH_MODULE_SFF_8472.

Fixes: 96d971e307cc ("ethtool: Add fallback to get_module_eeprom from netlink command")
Cc: Ido Schimmel <idosch@...dia.com>
Signed-off-by: Ivan Vecera <ivecera@...hat.com>
---
 net/ethtool/eeprom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ethtool/eeprom.c b/net/ethtool/eeprom.c
index 7e6b37a54add..1c94bb8ea03f 100644
--- a/net/ethtool/eeprom.c
+++ b/net/ethtool/eeprom.c
@@ -36,7 +36,7 @@ static int fallback_set_params(struct eeprom_req_info *request,
 	if (request->page)
 		offset = request->page * ETH_MODULE_EEPROM_PAGE_LEN + offset;
 
-	if (modinfo->type == ETH_MODULE_SFF_8079 &&
+	if (modinfo->type == ETH_MODULE_SFF_8472 &&
 	    request->i2c_address == 0x51)
 		offset += ETH_MODULE_EEPROM_PAGE_LEN * 2;
 
-- 
2.35.1