mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 08:21:14 +00:00
31a06f8fcc
Use new patch from Sieng Piaw Liew. Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
56 lines
1.6 KiB
Diff
56 lines
1.6 KiB
Diff
From ca6be00ca1d3a2f5b8794894e2dae175e63768f5 Mon Sep 17 00:00:00 2001
|
|
From: Sieng Piaw Liew <liew.s.piaw@gmail.com>
|
|
Date: Tue, 16 Feb 2021 16:23:08 +0800
|
|
Subject: [PATCH] bcm63xx_enet: Fix sporadic kernel panic
|
|
|
|
In ndo_stop functions, netdev_completed_queue() is called during forced
|
|
tx reclaim, after netdev_reset_queue(). This may trigger kernel panic if
|
|
there is any tx skb left.
|
|
|
|
This patch moves netdev_reset_queue() to after tx reclaim, so BQL can
|
|
complete successfully then reset.
|
|
|
|
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
|
|
---
|
|
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 8 ++++++--
|
|
1 file changed, 6 insertions(+), 2 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
|
|
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
|
|
@@ -1193,7 +1193,6 @@ static int bcm_enet_stop(struct net_devi
|
|
kdev = &priv->pdev->dev;
|
|
|
|
netif_stop_queue(dev);
|
|
- netdev_reset_queue(dev);
|
|
napi_disable(&priv->napi);
|
|
if (priv->has_phy)
|
|
phy_stop(dev->phydev);
|
|
@@ -1232,6 +1231,9 @@ static int bcm_enet_stop(struct net_devi
|
|
if (priv->has_phy)
|
|
phy_disconnect(dev->phydev);
|
|
|
|
+ /* reset BQL after forced tx reclaim to not kernel panic */
|
|
+ netdev_reset_queue(dev);
|
|
+
|
|
return 0;
|
|
}
|
|
|
|
@@ -2348,7 +2350,6 @@ static int bcm_enetsw_stop(struct net_de
|
|
|
|
del_timer_sync(&priv->swphy_poll);
|
|
netif_stop_queue(dev);
|
|
- netdev_reset_queue(dev);
|
|
napi_disable(&priv->napi);
|
|
del_timer_sync(&priv->rx_timeout);
|
|
|
|
@@ -2376,6 +2377,9 @@ static int bcm_enetsw_stop(struct net_de
|
|
free_irq(priv->irq_tx, dev);
|
|
free_irq(priv->irq_rx, dev);
|
|
|
|
+ /* reset BQL after forced tx reclaim to not kernel panic */
|
|
+ netdev_reset_queue(dev);
|
|
+
|
|
return 0;
|
|
}
|
|
|