patch 'distributor: fix potential overflow' has been queued to stable release 21.11.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 03/06/22. 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/32f77d388449d619264babe3e64d0aeca0a25c58

Thanks.

Kevin

---
>From 32f77d388449d619264babe3e64d0aeca0a25c58 Mon Sep 17 00:00:00 2001
From: Bruce Richardson <bruce.richardson at intel.com>
Date: Thu, 17 Feb 2022 15:02:39 +0000
Subject: [PATCH] distributor: fix potential overflow

[ upstream commit 9699b09803b799ddc11abedffb17af059c992e9a ]

Coverity flags the fact that the tag values used in distributor are
32-bit, which means that when we use bit-manipulation to convert a tag
match/no-match to a bit in an array, we need to typecast to a 64-bit
type before shifting past 32 bits.

Coverity issue: 375808
Fixes: 08ccf3faa6a9 ("distributor: new packet distributor library")

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
Acked-by: David Hunt <david.hunt at intel.com>
---
 lib/distributor/rte_distributor_single.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/distributor/rte_distributor_single.c b/lib/distributor/rte_distributor_single.c
index b653620688..60ca86152f 100644
--- a/lib/distributor/rte_distributor_single.c
+++ b/lib/distributor/rte_distributor_single.c
@@ -248,6 +248,5 @@ rte_distributor_process_single(struct rte_distributor_single *d,
 			 */
 			for (i = 0; i < d->num_workers; i++)
-				match |= (!(d->in_flight_tags[i] ^ new_tag)
-					<< i);
+				match |= ((uint64_t)!(d->in_flight_tags[i] ^ new_tag) << i);
 
 			/* Only turned-on bits are considered as match */
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-03-01 10:41:04.099678834 +0000
+++ 0100-distributor-fix-potential-overflow.patch	2022-03-01 10:41:01.484244135 +0000
@@ -1 +1 @@
-From 9699b09803b799ddc11abedffb17af059c992e9a Mon Sep 17 00:00:00 2001
+From 32f77d388449d619264babe3e64d0aeca0a25c58 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 9699b09803b799ddc11abedffb17af059c992e9a ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org
@@ -22 +23 @@
-index de90aa8bb5..2c77ac454a 100644
+index b653620688..60ca86152f 100644
@@ -25 +26 @@
-@@ -246,6 +246,5 @@ rte_distributor_process_single(struct rte_distributor_single *d,
+@@ -248,6 +248,5 @@ rte_distributor_process_single(struct rte_distributor_single *d,