patch 'net/tap: fix file descriptor check in isolated flow' has been queued to stable release 21.11.8

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.8

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/28/24. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/a599aacf12d5804af8ea8b01c67780f3cbb1f2dc

Thanks.

Kevin

---
>From a599aacf12d5804af8ea8b01c67780f3cbb1f2dc Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen at networkplumber.org>
Date: Tue, 21 May 2024 13:12:46 -0700
Subject: [PATCH] net/tap: fix file descriptor check in isolated flow

[ upstream commit e9e6089a41c275f3dcd7491f4df903a284653bb9 ]

The check for receive queue FD in flow_isolate is incorrect.
If queue has not been setup then FD will be -1 not 0.

Fixes: f503d2694825 ("net/tap: support flow API isolated mode")

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
Acked-by: Ferruh Yigit <ferruh.yigit at amd.com>
---
 drivers/net/tap/tap_flow.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/tap/tap_flow.c b/drivers/net/tap/tap_flow.c
index b4879d3f93..44ef948ae3 100644
--- a/drivers/net/tap/tap_flow.c
+++ b/drivers/net/tap/tap_flow.c
@@ -1598,5 +1598,5 @@ tap_flow_isolate(struct rte_eth_dev *dev,
 	 * Otherwise it will be set when bringing up the netdevice (tun_alloc).
 	 */
-	if (!process_private->rxq_fds[0])
+	if (process_private->rxq_fds[0] == -1)
 		return 0;
 	if (set) {
-- 
2.46.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-08-23 17:18:10.491658948 +0100
+++ 0016-net-tap-fix-file-descriptor-check-in-isolated-flow.patch	2024-08-23 17:18:09.635429808 +0100
@@ -1 +1 @@
-From e9e6089a41c275f3dcd7491f4df903a284653bb9 Mon Sep 17 00:00:00 2001
+From a599aacf12d5804af8ea8b01c67780f3cbb1f2dc Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit e9e6089a41c275f3dcd7491f4df903a284653bb9 ]
+
@@ -10 +11,0 @@
-Cc: stable at dpdk.org
@@ -19 +20 @@
-index fa50fe45d7..79cd6a12ca 100644
+index b4879d3f93..44ef948ae3 100644
@@ -22 +23 @@
-@@ -1596,5 +1596,5 @@ tap_flow_isolate(struct rte_eth_dev *dev,
+@@ -1598,5 +1598,5 @@ tap_flow_isolate(struct rte_eth_dev *dev,