Author: hselasky
Date: Mon Nov 11 14:41:05 2019
New Revision: 354609
URL: https://svnweb.freebsd.org/changeset/base/354609
Log:
MFC r353275:
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.
Sponsored by: Mellanox Technologies
Modified:
stable/12/sys/net/vnet.h
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/net/vnet.h
==============================================================================
--- stable/12/sys/net/vnet.h Mon Nov 11 14:07:11 2019 (r354608)
+++ stable/12/sys/net/vnet.h Mon Nov 11 14:41:05 2019 (r354609)
@@ -325,6 +325,8 @@ 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, \
@@ -337,6 +339,8 @@ 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, \
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