openwrt/target/linux/armsr/patches-6.1/701-v6.2-0001-net-dpaa2-eth-don-t-use-ENOTSUPP-error-code.patch

From f3763a0c1b07273218cbf5886bdf8df9df501111 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <[email protected]>
Date: Tue, 29 Nov 2022 16:12:10 +0200
Subject: [PATCH 03/14] net: dpaa2-eth: don't use -ENOTSUPP error code

dpaa2_eth_setup_dpni() is called from the probe path and
dpaa2_eth_set_link_ksettings() is propagated to user space.

include/linux/errno.h says that ENOTSUPP is "Defined for the NFSv3
protocol". Conventional wisdom has it to not use it in networking
drivers. Replace it with -EOPNOTSUPP.

Signed-off-by: Vladimir Oltean <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Ioana Ciornei <[email protected]>
Tested-by: Ioana Ciornei <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c     | 2 +-
 drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -3614,7 +3614,7 @@ static int dpaa2_eth_setup_dpni(struct f
 		dev_err(dev, "DPNI version %u.%u not supported, need >= %u.%u\n",
 			priv->dpni_ver_major, priv->dpni_ver_minor,
 			DPNI_VER_MAJOR, DPNI_VER_MINOR);
-		err = -ENOTSUPP;
+		err = -EOPNOTSUPP;
 		goto close;
 	}
 
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
@@ -118,7 +118,7 @@ dpaa2_eth_set_link_ksettings(struct net_
 	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
 
 	if (!dpaa2_eth_is_type_phy(priv))
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings);
 }