svn commit: r353275 - head/sys/net

[Hans Petter Selasky]

Author: hselasky
Date: Mon Oct  7 14:24:59 2019
New Revision: 353275
URL: https://svnweb.freebsd.org/changeset/base/353275

Log:
  Compile time assert a valid subsystem for all VNET init and uninit functions.
  Using VNET init and uninit functions outside the given range has undefined
  behaviour.
  
  MFC after:	1 week
  Sponsored by:	Mellanox Technologies

Modified:
  head/sys/net/vnet.h

Modified: head/sys/net/vnet.h
==============================================================================
--- head/sys/net/vnet.h	Mon Oct  7 14:15:41 2019	(r353274)
+++ head/sys/net/vnet.h	Mon Oct  7 14:24:59 2019	(r353275)
@@ -326,6 +326,8 @@ struct vnet_sysinit {
 };
 
 #define	VNET_SYSINIT(ident, subsystem, order, func, arg)		\
+	CTASSERT((subsystem) > SI_SUB_VNET &&				\
+	    (subsystem) <= SI_SUB_VNET_DONE);				\
 	static struct vnet_sysinit ident ## _vnet_init = {		\
 		subsystem,						\
 		order,							\
@@ -338,6 +340,8 @@ struct vnet_sysinit {
 	    vnet_deregister_sysinit, &ident ## _vnet_init)
 
 #define	VNET_SYSUNINIT(ident, subsystem, order, func, arg)		\
+	CTASSERT((subsystem) > SI_SUB_VNET &&				\
+	    (subsystem) <= SI_SUB_VNET_DONE);				\
 	static struct vnet_sysinit ident ## _vnet_uninit = {		\
 		subsystem,						\
 		order,							\