From 238cfa4a31bade7c4cd99622b29ba2e6db6be8b7 Mon Sep 17 00:00:00 2001
From: wenquan1 <wenquan1@xiaomi.com>
Date: Thu, 25 Dec 2025 21:37:02 +0800
Subject: [PATCH] net/pkt: fix scheduling when receiving MSG_ERRQUEUE

Fix a scheduling issue where MSG_ERRQUEUE readiness was
not properly waking poll waiters in pkt_netpoll.c.


Signed-off-by: wenquan1 <wenquan1@xiaomi.com>
---
 net/pkt/pkt_netpoll.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/pkt/pkt_netpoll.c b/net/pkt/pkt_netpoll.c
index e04e74b23f0..4adf8eaff2d 100644
--- a/net/pkt/pkt_netpoll.c
+++ b/net/pkt/pkt_netpoll.c
@@ -277,6 +277,15 @@ int pkt_pollsetup(FAR struct socket *psock, FAR struct pollfd *fds)
       eventset |= POLLWRNORM;
     }
 
+  /* Check for timestamping data */
+
+#ifdef CONFIG_NET_TIMESTAMPING
+  if (!IOB_QEMPTY(&conn->errahead))
+    {
+      eventset |= POLLPRI | POLLERR;
+    }
+#endif
+
   /* Check if any requested events are already in effect */
 
   poll_notify(&fds, 1, eventset);