svn commit: r362315 - stable/11/sys/compat/linuxkpi/common/include/linux

[Hans Petter Selasky]

Author: hselasky
Date: Thu Jun 18 10:46:05 2020
New Revision: 362315
URL: https://svnweb.freebsd.org/changeset/base/362315

Log:
  MFC r361722:
  Implement BUILD_BUG_ON_ZERO() in the LinuxKPI.
  Tested using gcc and clang.
  
  Sponsored by:	Mellanox Technologies

Modified:
  stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h
==============================================================================
--- stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h	Thu Jun 18 10:45:30 2020	(r362314)
+++ stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h	Thu Jun 18 10:46:05 2020	(r362315)
@@ -94,6 +94,9 @@
 #define	BUILD_BUG_ON_NOT_POWER_OF_2(x)	BUILD_BUG_ON(!powerof2(x))
 #define	BUILD_BUG_ON_INVALID(expr)	while (0) { (void)(expr); }
 
+extern const volatile int lkpi_build_bug_on_zero;
+#define	BUILD_BUG_ON_ZERO(x)	((x) ? lkpi_build_bug_on_zero : 0)
+
 #define	BUG()			panic("BUG at %s:%d", __FILE__, __LINE__)
 #define	BUG_ON(cond)		do {				\
 	if (cond) {						\