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, \
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