This is a note to let you know that I've just added the patch titled
qeth: delete napi struct when removing a qeth device
to the 4.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
qeth-delete-napi-struct-when-removing-a-qeth-device.patch
and it can be found in the queue-4.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7831b4ff0d926e0deeaabef9db8800ed069a2757 Mon Sep 17 00:00:00 2001
From: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>
Date: Mon, 4 Jul 2016 14:07:16 +0200
Subject: qeth: delete napi struct when removing a qeth device
From: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>
commit 7831b4ff0d926e0deeaabef9db8800ed069a2757 upstream.
A qeth_card contains a napi_struct linked to the net_device during
device probing. This struct must be deleted when removing the qeth
device, otherwise Panic on oops can occur when qeth devices are
repeatedly removed and added.
Fixes: a1c3ed4c9ca ("qeth: NAPI support for l2 and l3 discipline")
Signed-off-by: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>
Tested-by: Alexander Klein <ALKL@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/s390/net/qeth_l2_main.c | 1 +
drivers/s390/net/qeth_l3_main.c | 1 +
2 files changed, 2 insertions(+)
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -1051,6 +1051,7 @@ static void qeth_l2_remove_device(struct
qeth_l2_set_offline(cgdev);
if (card->dev) {
+ netif_napi_del(&card->napi);
unregister_netdev(card->dev);
card->dev = NULL;
}
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3226,6 +3226,7 @@ static void qeth_l3_remove_device(struct
qeth_l3_set_offline(cgdev);
if (card->dev) {
+ netif_napi_del(&card->napi);
unregister_netdev(card->dev);
card->dev = NULL;
}
Patches currently in stable-queue which might be from ubraun@xxxxxxxxxxxxxxxxxx are
queue-4.6/qeth-delete-napi-struct-when-removing-a-qeth-device.patch
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