Date: Tue, 2 Jun 2020 09:45:44 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r361722 - head/sys/compat/linuxkpi/common/include/linux Message-ID: <202006020945.0529jiWs041821@repo.freebsd.org>
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Author: hselasky Date: Tue Jun 2 09:45:43 2020 New Revision: 361722 URL: https://svnweb.freebsd.org/changeset/base/361722 Log: Implement BUILD_BUG_ON_ZERO() in the LinuxKPI. Tested using gcc and clang. MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/include/linux/kernel.h Modified: head/sys/compat/linuxkpi/common/include/linux/kernel.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/kernel.h Tue Jun 2 03:44:22 2020 (r361721) +++ head/sys/compat/linuxkpi/common/include/linux/kernel.h Tue Jun 2 09:45:43 2020 (r361722) @@ -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) { \
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