[VirtualBox-kmod] Fixes for kernel-6.5 copied from OpenSuse

commit 15442e50fc879d9cb0f713bd99000dc4e7e327d3 Author: Sérgio M. Basto <sergio(a)serjux.com&gt; Date: Sun Sep 10 22:19:23 2023 +0100 Fixes for kernel-6.5 copied from OpenSuse VirtualBox-kmod.spec | 7 +- kernel-6.5.patch | 441 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 447 insertions(+), 1 deletion(-) --- diff --git a/VirtualBox-kmod.spec b/VirtualBox-kmod.spec index 8fce7b6..cecc049 100644 --- a/VirtualBox-kmod.spec +++ b/VirtualBox-kmod.spec @@ -40,7 +40,7 @@ Name: VirtualBox-kmod Version: 7.0.10 -Release: 2%{?dist} +Release: 3%{?dist} #Release: 1%%{?prerel:.%%{prerel}}%%{?dist} Summary: Kernel module for VirtualBox @@ -50,6 +50,7 @@ URL: http://www.virtualbox.org/wiki/VirtualBox Source1: excludekernel-filter.txt Patch1: fix_7.0.6_locking_problems.patch Patch2: kernel-6.4.10.patch +Patch3: kernel-6.5.patch %global AkmodsBuildRequires %{_bindir}/kmodtool VirtualBox-kmodsrc = %{version} xz time elfutils-libelf-devel gcc @@ -74,6 +75,7 @@ pushd %{name}-%{version} %patch -P 1 -p1 %patch -P 2 -p1 popd +%patch -P 3 -p1 # error out if there was something wrong with kmodtool %{?kmodtool_check} @@ -135,6 +137,9 @@ DIRS=$(ls %{name}-%{version} |wc -l) [ $MODS = $DIRS ] || [ $MODS = 0 ] %changelog +* Sun Sep 10 2023 Sérgio Basto <sergio(a)serjux.com&gt; - 7.0.10-3 +- Fixes for kernel-6.5 copied from OpenSuse + * Sat Aug 12 2023 Sérgio Basto <sergio(a)serjux.com&gt; - 7.0.10-2 - Add fix for kernel-6.4.10 diff --git a/kernel-6.5.patch b/kernel-6.5.patch new file mode 100644 index 0000000..2b55196 --- /dev/null +++ b/kernel-6.5.patch @@ -0,0 +1,441 @@ +Only in VirtualBox-kmod-7.0.10: vboxnetadp +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxdrv/include/iprt/cdefs.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxdrv/include/iprt/cdefs.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxdrv/include/iprt/cdefs.h 2023-07-12 17:25:21.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxdrv/include/iprt/cdefs.h 2023-09-10 22:13:17.207356435 +0100 +@@ -38,8 +38,9 @@ + #ifndef RT_WITHOUT_PRAGMA_ONCE + # pragma once + #endif +- +- ++#if defined(DECLARE_FLEX_ARRAY) ++# include <linux/version.h> ++#endif + /** @defgroup grp_rt_cdefs IPRT Common Definitions and Macros + * @{ + */ +@@ -2960,6 +2961,12 @@ + * @note GCC does not permit using this in nested structures, where as MSC + * does. So, use RT_FLEXIBLE_ARRAY_NESTED for that. + * ++ * @note Linux kernels 6.5+ enforce field-spanning write operations ++ * and require flexible arrays to end with 'array[]' rather than array[1]. ++ * This construct fails with unions, but VB does not have any such unions. ++ * This header is used with both kernel- and user-mode code. In user-mode, ++ * the old method works. If DECLARE_FLEX_ARRAY is defined, we are ++ * building kernel-mode code and RT_FLEXIBLE_ARRAY is set to blank. + * @sa RT_FLEXIBLE_ARRAY_NESTED, RT_FLEXIBLE_ARRAY_IN_UNION + */ + #if RT_MSC_PREREQ(RT_MSC_VER_VS2005) /** @todo Probably much much earlier. */ \ +@@ -2975,10 +2982,18 @@ + # if __STDC_VERSION__ >= 1999901L + # define RT_FLEXIBLE_ARRAY + # else +-# define RT_FLEXIBLE_ARRAY 1 ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else ++# define RT_FLEXIBLE_ARRAY 1 ++# endif + # endif + #else ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else + # define RT_FLEXIBLE_ARRAY 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_EXTENSION +@@ -3007,7 +3022,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_NESTED RT_FLEXIBLE_ARRAY + #else ++# if !defined(DECLARE_FLEX_ARRAY) + # define RT_FLEXIBLE_ARRAY_NESTED 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_UNION +@@ -3023,7 +3040,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_UNION RT_FLEXIBLE_ARRAY + #else +-# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_NESTED_UNION +@@ -3036,7 +3055,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION RT_FLEXIBLE_ARRAY_NESTED + #else +-# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# endif + #endif + + /** @def RT_UNION_NM +Only in VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxdrv/include/iprt: cdefs.h.orig +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxguest/include/iprt/cdefs.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxguest/include/iprt/cdefs.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxguest/include/iprt/cdefs.h 2023-07-12 17:25:21.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxguest/include/iprt/cdefs.h 2023-09-10 22:12:41.853471376 +0100 +@@ -38,8 +38,9 @@ + #ifndef RT_WITHOUT_PRAGMA_ONCE + # pragma once + #endif +- +- ++#if defined(DECLARE_FLEX_ARRAY) ++# include <linux/version.h> ++#endif + /** @defgroup grp_rt_cdefs IPRT Common Definitions and Macros + * @{ + */ +@@ -2960,6 +2961,12 @@ + * @note GCC does not permit using this in nested structures, where as MSC + * does. So, use RT_FLEXIBLE_ARRAY_NESTED for that. + * ++ * @note Linux kernels 6.5+ enforce field-spanning write operations ++ * and require flexible arrays to end with 'array[]' rather than array[1]. ++ * This construct fails with unions, but VB does not have any such unions. ++ * This header is used with both kernel- and user-mode code. In user-mode, ++ * the old method works. If DECLARE_FLEX_ARRAY is defined, we are ++ * building kernel-mode code and RT_FLEXIBLE_ARRAY is set to blank. + * @sa RT_FLEXIBLE_ARRAY_NESTED, RT_FLEXIBLE_ARRAY_IN_UNION + */ + #if RT_MSC_PREREQ(RT_MSC_VER_VS2005) /** @todo Probably much much earlier. */ \ +@@ -2975,10 +2982,18 @@ + # if __STDC_VERSION__ >= 1999901L + # define RT_FLEXIBLE_ARRAY + # else +-# define RT_FLEXIBLE_ARRAY 1 ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else ++# define RT_FLEXIBLE_ARRAY 1 ++# endif + # endif + #else ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else + # define RT_FLEXIBLE_ARRAY 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_EXTENSION +@@ -3007,7 +3022,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_NESTED RT_FLEXIBLE_ARRAY + #else ++# if !defined(DECLARE_FLEX_ARRAY) + # define RT_FLEXIBLE_ARRAY_NESTED 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_UNION +@@ -3023,7 +3040,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_UNION RT_FLEXIBLE_ARRAY + #else +-# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_NESTED_UNION +@@ -3036,7 +3055,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION RT_FLEXIBLE_ARRAY_NESTED + #else +-# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# endif + #endif + + /** @def RT_UNION_NM +Only in VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxguest/include/iprt: cdefs.h.orig +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxguest/include/VBox/VBoxGuest.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxguest/include/VBox/VBoxGuest.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxguest/include/VBox/VBoxGuest.h 2023-07-12 17:25:14.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxguest/include/VBox/VBoxGuest.h 2023-09-10 22:15:25.028940841 +0100 +@@ -458,8 +458,12 @@ typedef struct VBGLIOCLOG + { + /** The log message. + * The length is determined from the input size and zero termination. */ +- char szMsg[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION]; +- } In; ++#if defined(DECLARE_FLEX_ARRAY) ++ DECLARE_FLEX_ARRAY(char, szMsg); ++#else ++ char szMsg[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION]; ++#endif ++ } In; + } u; + } VBGLIOCLOG, RT_FAR *PVBGLIOCLOG; + /** @} */ +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxnetadp/include/iprt/cdefs.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxnetadp/include/iprt/cdefs.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxnetadp/include/iprt/cdefs.h 2023-07-12 17:25:21.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxnetadp/include/iprt/cdefs.h 2023-09-10 22:12:28.116516034 +0100 +@@ -38,8 +38,9 @@ + #ifndef RT_WITHOUT_PRAGMA_ONCE + # pragma once + #endif +- +- ++#if defined(DECLARE_FLEX_ARRAY) ++# include <linux/version.h> ++#endif + /** @defgroup grp_rt_cdefs IPRT Common Definitions and Macros + * @{ + */ +@@ -2960,6 +2961,12 @@ + * @note GCC does not permit using this in nested structures, where as MSC + * does. So, use RT_FLEXIBLE_ARRAY_NESTED for that. + * ++ * @note Linux kernels 6.5+ enforce field-spanning write operations ++ * and require flexible arrays to end with 'array[]' rather than array[1]. ++ * This construct fails with unions, but VB does not have any such unions. ++ * This header is used with both kernel- and user-mode code. In user-mode, ++ * the old method works. If DECLARE_FLEX_ARRAY is defined, we are ++ * building kernel-mode code and RT_FLEXIBLE_ARRAY is set to blank. + * @sa RT_FLEXIBLE_ARRAY_NESTED, RT_FLEXIBLE_ARRAY_IN_UNION + */ + #if RT_MSC_PREREQ(RT_MSC_VER_VS2005) /** @todo Probably much much earlier. */ \ +@@ -2975,10 +2982,18 @@ + # if __STDC_VERSION__ >= 1999901L + # define RT_FLEXIBLE_ARRAY + # else +-# define RT_FLEXIBLE_ARRAY 1 ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else ++# define RT_FLEXIBLE_ARRAY 1 ++# endif + # endif + #else ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else + # define RT_FLEXIBLE_ARRAY 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_EXTENSION +@@ -3007,7 +3022,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_NESTED RT_FLEXIBLE_ARRAY + #else ++# if !defined(DECLARE_FLEX_ARRAY) + # define RT_FLEXIBLE_ARRAY_NESTED 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_UNION +@@ -3023,7 +3040,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_UNION RT_FLEXIBLE_ARRAY + #else +-# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_NESTED_UNION +@@ -3036,7 +3055,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION RT_FLEXIBLE_ARRAY_NESTED + #else +-# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# endif + #endif + + /** @def RT_UNION_NM +Only in VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxnetadp/include/iprt: cdefs.h.orig +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxnetflt/include/iprt/cdefs.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxnetflt/include/iprt/cdefs.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxnetflt/include/iprt/cdefs.h 2023-07-12 17:25:21.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxnetflt/include/iprt/cdefs.h 2023-09-10 22:13:08.768383873 +0100 +@@ -38,8 +38,9 @@ + #ifndef RT_WITHOUT_PRAGMA_ONCE + # pragma once + #endif +- +- ++#if defined(DECLARE_FLEX_ARRAY) ++# include <linux/version.h> ++#endif + /** @defgroup grp_rt_cdefs IPRT Common Definitions and Macros + * @{ + */ +@@ -2960,6 +2961,12 @@ + * @note GCC does not permit using this in nested structures, where as MSC + * does. So, use RT_FLEXIBLE_ARRAY_NESTED for that. + * ++ * @note Linux kernels 6.5+ enforce field-spanning write operations ++ * and require flexible arrays to end with 'array[]' rather than array[1]. ++ * This construct fails with unions, but VB does not have any such unions. ++ * This header is used with both kernel- and user-mode code. In user-mode, ++ * the old method works. If DECLARE_FLEX_ARRAY is defined, we are ++ * building kernel-mode code and RT_FLEXIBLE_ARRAY is set to blank. + * @sa RT_FLEXIBLE_ARRAY_NESTED, RT_FLEXIBLE_ARRAY_IN_UNION + */ + #if RT_MSC_PREREQ(RT_MSC_VER_VS2005) /** @todo Probably much much earlier. */ \ +@@ -2975,10 +2982,18 @@ + # if __STDC_VERSION__ >= 1999901L + # define RT_FLEXIBLE_ARRAY + # else +-# define RT_FLEXIBLE_ARRAY 1 ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else ++# define RT_FLEXIBLE_ARRAY 1 ++# endif + # endif + #else ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else + # define RT_FLEXIBLE_ARRAY 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_EXTENSION +@@ -3007,7 +3022,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_NESTED RT_FLEXIBLE_ARRAY + #else ++# if !defined(DECLARE_FLEX_ARRAY) + # define RT_FLEXIBLE_ARRAY_NESTED 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_UNION +@@ -3023,7 +3040,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_UNION RT_FLEXIBLE_ARRAY + #else +-# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_NESTED_UNION +@@ -3036,7 +3055,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION RT_FLEXIBLE_ARRAY_NESTED + #else +-# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# endif + #endif + + /** @def RT_UNION_NM +Only in VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxnetflt/include/iprt: cdefs.h.orig +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxsf/include/iprt/cdefs.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxsf/include/iprt/cdefs.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxsf/include/iprt/cdefs.h 2023-07-12 17:25:21.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxsf/include/iprt/cdefs.h 2023-09-10 22:13:26.540326093 +0100 +@@ -38,8 +38,9 @@ + #ifndef RT_WITHOUT_PRAGMA_ONCE + # pragma once + #endif +- +- ++#if defined(DECLARE_FLEX_ARRAY) ++# include <linux/version.h> ++#endif + /** @defgroup grp_rt_cdefs IPRT Common Definitions and Macros + * @{ + */ +@@ -2960,6 +2961,12 @@ + * @note GCC does not permit using this in nested structures, where as MSC + * does. So, use RT_FLEXIBLE_ARRAY_NESTED for that. + * ++ * @note Linux kernels 6.5+ enforce field-spanning write operations ++ * and require flexible arrays to end with 'array[]' rather than array[1]. ++ * This construct fails with unions, but VB does not have any such unions. ++ * This header is used with both kernel- and user-mode code. In user-mode, ++ * the old method works. If DECLARE_FLEX_ARRAY is defined, we are ++ * building kernel-mode code and RT_FLEXIBLE_ARRAY is set to blank. + * @sa RT_FLEXIBLE_ARRAY_NESTED, RT_FLEXIBLE_ARRAY_IN_UNION + */ + #if RT_MSC_PREREQ(RT_MSC_VER_VS2005) /** @todo Probably much much earlier. */ \ +@@ -2975,10 +2982,18 @@ + # if __STDC_VERSION__ >= 1999901L + # define RT_FLEXIBLE_ARRAY + # else +-# define RT_FLEXIBLE_ARRAY 1 ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else ++# define RT_FLEXIBLE_ARRAY 1 ++# endif + # endif + #else ++# if defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY ++# else + # define RT_FLEXIBLE_ARRAY 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_EXTENSION +@@ -3007,7 +3022,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_NESTED RT_FLEXIBLE_ARRAY + #else ++# if !defined(DECLARE_FLEX_ARRAY) + # define RT_FLEXIBLE_ARRAY_NESTED 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_UNION +@@ -3023,7 +3040,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_UNION RT_FLEXIBLE_ARRAY + #else +-# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_UNION 1 ++# endif + #endif + + /** @def RT_FLEXIBLE_ARRAY_IN_NESTED_UNION +@@ -3036,7 +3055,9 @@ + #ifdef _MSC_VER + # define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION RT_FLEXIBLE_ARRAY_NESTED + #else +-# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# if !defined(DECLARE_FLEX_ARRAY) ++# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION 1 ++# endif + #endif + + /** @def RT_UNION_NM +diff -urp VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxsf/include/VBox/VBoxGuest.h VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxsf/include/VBox/VBoxGuest.h +--- VirtualBox-kmod-7.0.10.orig/VirtualBox-kmod-7.0.10/vboxsf/include/VBox/VBoxGuest.h 2023-07-12 17:25:14.000000000 +0100 ++++ VirtualBox-kmod-7.0.10/VirtualBox-kmod-7.0.10/vboxsf/include/VBox/VBoxGuest.h 2023-09-10 22:15:34.166911131 +0100 +@@ -458,8 +458,12 @@ typedef struct VBGLIOCLOG + { + /** The log message. + * The length is determined from the input size and zero termination. */ +- char szMsg[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION]; +- } In; ++#if defined(DECLARE_FLEX_ARRAY) ++ DECLARE_FLEX_ARRAY(char, szMsg); ++#else ++ char szMsg[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION]; ++#endif ++ } In; + } u; + } VBGLIOCLOG, RT_FAR *PVBGLIOCLOG; + /** @} */