From 75cde1f872a4dc2187e6d172e5a5e69a2b3a59cf Mon Sep 17 00:00:00 2001
From: Mateusz Guzik <mjg@FreeBSD.org>
Date: Thu, 17 Feb 2022 16:48:45 +0000
Subject: [PATCH] vnet: add CURVNET_ASSERT_SET

Reviewed by:	kp
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D34312
---
 sys/net/vnet.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/net/vnet.h b/sys/net/vnet.h
index dcfcb5f99064..86ddd444fc09 100644
--- a/sys/net/vnet.h
+++ b/sys/net/vnet.h
@@ -238,6 +238,10 @@ void vnet_log_recursion(struct vnet *, const char *, int);
 	curvnet = saved_vnet;
 #endif /* VNET_DEBUG */
 
+#define	CURVNET_ASSERT_SET()						\
+	VNET_ASSERT(curvnet != NULL, ("vnet is not set at %s:%d %s()",  \
+	    __FILE__, __LINE__, __func__))
+
 extern struct vnet *vnet0;
 #define	IS_DEFAULT_VNET(arg)	((arg) == vnet0)