This is a note to let you know that I've just added the patch titled
net: eth: altera: fix napi poll_list corruption
to the 4.2-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:
net-eth-altera-fix-napi-poll_list-corruption.patch
and it can be found in the queue-4.2 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 Wed Sep 30 05:25:07 CEST 2015
From: Atsushi Nemoto <nemoto@xxxxxxxxxxxxxxxxxx>
Date: Wed, 2 Sep 2015 17:49:29 +0900
Subject: net: eth: altera: fix napi poll_list corruption
From: Atsushi Nemoto <nemoto@xxxxxxxxxxxxxxxxxx>
[ Upstream commit 4548a697e4969d695047cebd6d9af5e2f6cc728e ]
tse_poll() calls __napi_complete() with irq enabled. This leads napi
poll_list corruption and may stop all napi drivers working.
Use napi_complete() instead of __napi_complete().
Signed-off-by: Atsushi Nemoto <nemoto@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/altera/altera_tse_main.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -511,8 +511,7 @@ static int tse_poll(struct napi_struct *
if (rxcomplete < budget) {
- napi_gro_flush(napi, false);
- __napi_complete(napi);
+ napi_complete(napi);
netdev_dbg(priv->dev,
"NAPI Complete, did %d packets with budget %d\n",
Patches currently in stable-queue which might be from nemoto@xxxxxxxxxxxxxxxxxx are
queue-4.2/net-eth-altera-fix-napi-poll_list-corruption.patch
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