patch 'eventdev: fix listing timer adapters with telemetry' has been queued to stable release 23.11.6

[Shani Peretz]

Hi,

FYI, your patch has been queued to stable release 23.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/26/25. 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/shanipr/dpdk-stable

This queued commit can be viewed at:
https://github.com/shanipr/dpdk-stable/commit/21194951848d37e2df3a76bc153be056a053e75b

Thanks.

Shani

---
>From 21194951848d37e2df3a76bc153be056a053e75b Mon Sep 17 00:00:00 2001
From: David Marchand <david.marchand at redhat.com>
Date: Fri, 4 Jul 2025 14:58:25 +0200
Subject: [PATCH] eventdev: fix listing timer adapters with telemetry

[ upstream commit 94b2ff7ee1976f80dd4822dab090bbbf693d12ca ]

If no timer adapter is created, listing with telemetry can lead to crash
and is reported by UBSan as an undefined behavior:

../lib/eventdev/rte_event_timer_adapter.c:1418:13:
	runtime error: applying zero offset to null pointer

../lib/eventdev/rte_event_timer_adapter.c:1464:13:
	runtime error: applying zero offset to null pointer

Fixes: 791dfec24d00 ("eventdev/timer: add telemetry")

Signed-off-by: David Marchand <david.marchand at redhat.com>
Acked-by: Chengwen Feng <fengchengwen at huawei.com>
---
 lib/eventdev/rte_event_timer_adapter.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/eventdev/rte_event_timer_adapter.c b/lib/eventdev/rte_event_timer_adapter.c
index 3f22e85173..b85ebd5263 100644
--- a/lib/eventdev/rte_event_timer_adapter.c
+++ b/lib/eventdev/rte_event_timer_adapter.c
@@ -1395,7 +1395,7 @@ handle_ta_info(const char *cmd __rte_unused, const char *params,
 
 	adapter_id = atoi(params);
 
-	if (adapter_id >= RTE_EVENT_TIMER_ADAPTER_NUM_MAX) {
+	if (adapters == NULL || adapter_id >= RTE_EVENT_TIMER_ADAPTER_NUM_MAX) {
 		EVTIM_LOG_ERR("Invalid timer adapter id %u", adapter_id);
 		return -EINVAL;
 	}
@@ -1441,7 +1441,7 @@ handle_ta_stats(const char *cmd __rte_unused, const char *params,
 
 	adapter_id = atoi(params);
 
-	if (adapter_id >= RTE_EVENT_TIMER_ADAPTER_NUM_MAX) {
+	if (adapters == NULL || adapter_id >= RTE_EVENT_TIMER_ADAPTER_NUM_MAX) {
 		EVTIM_LOG_ERR("Invalid timer adapter id %u", adapter_id);
 		return -EINVAL;
 	}
-- 
2.43.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-12-21 16:54:17.806642000 +0200
+++ 0008-eventdev-fix-listing-timer-adapters-with-telemetry.patch	2025-12-21 16:54:16.650059000 +0200
@@ -1 +1 @@
-From 94b2ff7ee1976f80dd4822dab090bbbf693d12ca Mon Sep 17 00:00:00 2001
+From 21194951848d37e2df3a76bc153be056a053e75b Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 94b2ff7ee1976f80dd4822dab090bbbf693d12ca ]
+
@@ -16 +17,0 @@
-Cc: stable at dpdk.org
@@ -25 +26 @@
-index 06ce478d90..af98b1d9f6 100644
+index 3f22e85173..b85ebd5263 100644
@@ -28 +29 @@
-@@ -1410,7 +1410,7 @@ handle_ta_info(const char *cmd __rte_unused, const char *params,
+@@ -1395,7 +1395,7 @@ handle_ta_info(const char *cmd __rte_unused, const char *params,
@@ -37 +38 @@
-@@ -1456,7 +1456,7 @@ handle_ta_stats(const char *cmd __rte_unused, const char *params,
+@@ -1441,7 +1441,7 @@ handle_ta_stats(const char *cmd __rte_unused, const char *params,