ionic: use ee->offset when returning sprom data

[ Upstream commit b096d62ba1323391b2db98b7704e2468cf3b1588 ]

Some calls into ionic_get_module_eeprom() don't use a single
full buffer size, but instead multiple calls with an offset.
Teach our driver to use the offset correctly so we can
respond appropriately to the caller.

Fixes: 4d03e00a2140 ("ionic: Add initial ethtool support")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20241212213157.12212-4-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
index 8e5b01af85ed21a38f815fda352952f91080d04b..d0a613fac9ff301fd3706ee795163381875d47e0 100644 (file)
--- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
@@ -835,8 +835,8 @@ static int ionic_get_module_eeprom(struct net_device *netdev,
        len = min_t(u32, sizeof(xcvr->sprom), ee->len);
 
        do {
-               memcpy(data, xcvr->sprom, len);
-               memcpy(tbuf, xcvr->sprom, len);
+               memcpy(data, &xcvr->sprom[ee->offset], len);
+               memcpy(tbuf, &xcvr->sprom[ee->offset], len);
 
                /* Let's make sure we got a consistent copy */
                if (!memcmp(data, tbuf, len))