openwrt/target/linux/armsr/patches-6.1/701-v6.2-0006-net-dpaa2-switch-assign-port_priv-mac-after-dpaa2_ma.patch
Mathew McBride 587b8b8e32 kernel/armsr: Restore kernel files for v6.1
This is an automatically generated commit which aids following Kernel patch history,
as git will see the move and copy as a rename thus defeating the purpose.

See: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html
for the original discussion.

Signed-off-by: Mathew McBride <matt@traverse.com.au>
2024-05-07 13:01:19 +01:00

74 lines
2.1 KiB
Diff

From a5e7f7e277bd4403c45c1c7922d56d0eb08dbc7c Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Tue, 29 Nov 2022 16:12:15 +0200
Subject: [PATCH 08/14] net: dpaa2-switch: assign port_priv->mac after
dpaa2_mac_connect() call
The dpaa2-switch has the exact same locking requirements when connected
to a DPMAC, so it needs port_priv->mac to always point either to NULL,
or to a DPMAC with a fully initialized phylink instance.
Make the same preparatory change in the dpaa2-switch driver as in the
dpaa2-eth one.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
.../ethernet/freescale/dpaa2/dpaa2-switch.c | 21 +++++++++++--------
1 file changed, 12 insertions(+), 9 deletions(-)
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
@@ -1450,9 +1450,8 @@ static int dpaa2_switch_port_connect_mac
err = dpaa2_mac_open(mac);
if (err)
goto err_free_mac;
- port_priv->mac = mac;
- if (dpaa2_switch_port_is_type_phy(port_priv)) {
+ if (dpaa2_mac_is_type_phy(mac)) {
err = dpaa2_mac_connect(mac);
if (err) {
netdev_err(port_priv->netdev,
@@ -1462,11 +1461,12 @@ static int dpaa2_switch_port_connect_mac
}
}
+ port_priv->mac = mac;
+
return 0;
err_close_mac:
dpaa2_mac_close(mac);
- port_priv->mac = NULL;
err_free_mac:
kfree(mac);
return err;
@@ -1474,15 +1474,18 @@ err_free_mac:
static void dpaa2_switch_port_disconnect_mac(struct ethsw_port_priv *port_priv)
{
- if (dpaa2_switch_port_is_type_phy(port_priv))
- dpaa2_mac_disconnect(port_priv->mac);
+ struct dpaa2_mac *mac = port_priv->mac;
+
+ port_priv->mac = NULL;
- if (!dpaa2_switch_port_has_mac(port_priv))
+ if (!mac)
return;
- dpaa2_mac_close(port_priv->mac);
- kfree(port_priv->mac);
- port_priv->mac = NULL;
+ if (dpaa2_mac_is_type_phy(mac))
+ dpaa2_mac_disconnect(mac);
+
+ dpaa2_mac_close(mac);
+ kfree(mac);
}
static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg)