This is a note to let you know that I've just added the patch titled
ibmvnic: Call napi_disable instead of napi_enable in failure path
to the 4.9-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:
ibmvnic-call-napi_disable-instead-of-napi_enable-in-failure-path.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Jun 15 11:12:23 CEST 2017
From: Nathan Fontenot <nfont@xxxxxxxxxxxxxxxxxx>
Date: Tue, 23 May 2017 21:53:38 -0400
Subject: ibmvnic: Call napi_disable instead of napi_enable in failure path
From: Nathan Fontenot <nfont@xxxxxxxxxxxxxxxxxx>
[ Upstream commit e722af6391949e8851310441bb0cec157d25611d ]
The failure path in ibmvnic_open() mistakenly makes a second call
to napi_enable instead of calling napi_disable. This can result
in a BUG_ON for any queues that were enabled in the previous call
to napi_enable.
Signed-off-by: Nathan Fontenot <nfont@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/ibm/ibmvnic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -505,7 +505,7 @@ rx_pool_alloc_failed:
adapter->rx_pool = NULL;
rx_pool_arr_alloc_failed:
for (i = 0; i < adapter->req_rx_queues; i++)
- napi_enable(&adapter->napi[i]);
+ napi_disable(&adapter->napi[i]);
alloc_napi_failed:
return -ENOMEM;
}
Patches currently in stable-queue which might be from nfont@xxxxxxxxxxxxxxxxxx are
queue-4.9/ibmvnic-call-napi_disable-instead-of-napi_enable-in-failure-path.patch
queue-4.9/ibmvnic-initialize-completion-variables-before-starting-work.patch