Index: VirtualBox-6.1.26/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
===================================================================
--- VirtualBox-6.1.26.orig/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
+++ VirtualBox-6.1.26/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
@@ -76,6 +76,10 @@
 #define VBOXNETFLT_OS_SPECFIC 1
 #include "../VBoxNetFltInternal.h"
 
+# if defined(CONFIG_SUSE_VERSION) && CONFIG_SUSE_VERSION == 15 && CONFIG_SUSE_PATCHLEVEL == 2
+#  define OPENSUSE_152
+# endif
+
 typedef struct VBOXNETFLTNOTIFIER {
     struct notifier_block Notifier;
     PVBOXNETFLTINS pThis;
Index: VirtualBox-6.1.26/src/VBox/Additions/linux/drm/vbox_drv.c
===================================================================
--- VirtualBox-6.1.26.orig/src/VBox/Additions/linux/drm/vbox_drv.c
+++ VirtualBox-6.1.26/src/VBox/Additions/linux/drm/vbox_drv.c
@@ -310,12 +310,15 @@ static void vbox_master_drop(struct drm_
 }
 
 static struct drm_driver driver = {
-#if RTLNX_VER_MAX(5,4,0) && !RTLNX_RHEL_MAJ_PREREQ(8,3) && !RTLNX_SUSE_MAJ_PREREQ(15,3)
-	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_HAVE_IRQ |
+#if RTLNX_VER_MAX(5,4,0)
+	.driver_features =
+#if defined(OPENSUSE_152)
+	    DRIVER_PRIME |
+#endif
 # if RTLNX_VER_MAX(5,1,0) && !RTLNX_RHEL_MAJ_PREREQ(8,1)
 	    DRIVER_IRQ_SHARED |
 # endif
-	    DRIVER_PRIME,
+	    DRIVER_MODESET | DRIVER_GEM | DRIVER_HAVE_IRQ,
 #else  /* >= 5.4.0 && RHEL >= 8.3 && SLES >= 15-SP3 */
 		.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_HAVE_IRQ,
 #endif /* <  5.4.0 */
Index: VirtualBox-6.1.26/src/VBox/Additions/linux/drm/vbox_main.c
===================================================================
--- VirtualBox-6.1.26.orig/src/VBox/Additions/linux/drm/vbox_main.c
+++ VirtualBox-6.1.26/src/VBox/Additions/linux/drm/vbox_main.c
@@ -638,8 +638,12 @@ static inline u64 vbox_bo_mmap_offset(st
 #elif RTLNX_VER_MAX(3,12,0) && !RTLNX_RHEL_MAJ_PREREQ(7,0)
 	return bo->bo.addr_space_offset;
 #else
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
+	return drm_vma_node_offset_addr(&bo->bo.base.vma_node);
+#else
 	return drm_vma_node_offset_addr(&bo->bo.vma_node);
 #endif /* >= 5.4.0 */
+#endif
 }
 
 int
Index: VirtualBox-6.1.26/include/iprt/cdefs.h
===================================================================
--- VirtualBox-6.1.26.orig/include/iprt/cdefs.h
+++ VirtualBox-6.1.26/include/iprt/cdefs.h
@@ -1184,14 +1184,15 @@
  * Tell the compiler that we're falling through to the next case in a switch.
  * @sa RT_FALL_THRU  */
 #if RT_GNUC_PREREQ(7, 0)
-# define RT_FALL_THROUGH()      __attribute__((__fallthrough__))
+# define FALL_THROUGH		__attribute__((__fallthrough__))
 #else
-# define RT_FALL_THROUGH()      (void)0
+# define FALL_THROUGH      (void)0
 #endif
 /** @def RT_FALL_THRU
  * Tell the compiler that we're falling thru to the next case in a switch.
  * @sa RT_FALL_THROUGH */
-#define RT_FALL_THRU()          RT_FALL_THROUGH()
+#define RT_FALL_THRU()          FALL_THROUGH
+#define RT_FALL_THROUGH()	FALL_THROUGH
 
 
 /** @def RT_IPRT_FORMAT_ATTR
Index: VirtualBox-6.1.26/kBuild/header.kmk
===================================================================
--- VirtualBox-6.1.26.orig/kBuild/header.kmk
+++ VirtualBox-6.1.26/kBuild/header.kmk
@@ -754,7 +754,7 @@ RMDIR_EXT   := $(KBUILD_BIN_PATH)/kmk_rm
 RMDIR_INT   := kmk_builtin_rmdir
 RMDIR       := $(RMDIR_INT)
 
-SED_EXT     := $(KBUILD_BIN_PATH)/kmk_sed$(HOSTSUFF_EXE)
+SED_EXT     := /usr/bin/kmk_sed$(HOSTSUFF_EXE)
 SED_INT     := $(SED_EXT)
 SED         := $(SED_EXT)
 
Index: VirtualBox-6.1.26/configure
===================================================================
--- VirtualBox-6.1.26.orig/configure
+++ VirtualBox-6.1.26/configure
@@ -1881,7 +1881,7 @@ check_kbuild()
     fi
     echo "export PATH" >> $ENV
     echo "unset path_kbuild_bin path_dev_bin" >> $ENV
-    KBUILD_SED="$KBUILDDIR_BIN/kmk_sed"
+    KBUILD_SED="/usr/bin/kmk_sed"
   elif [ "$OS.$BUILD_MACHINE" = "darwin.amd64" ]; then
     # Currently there are no amd64 kBuild bins. So use the x86 variant in any case.
     KBUILDDIR_BIN="$KBUILDDIR/bin/$OS.x86"
@@ -1897,10 +1897,10 @@ check_kbuild()
     echo "echo \"\$PATH\" | grep -q \"\$path_dev_bin\" || PATH=\"\$path_dev_bin:\$PATH\"" >> $ENV
     echo "export PATH" >> $ENV
     echo "unset path_kbuild_bin path_dev_bin" >> $ENV
-    KBUILD_SED="$KBUILDDIR_BIN/kmk_sed"
+    KBUILD_SED="/usr/bin/kmk_sed"
   elif check_avail "kmk" KBUILDDIR really; then
     # check for installed kBuild
-    KBUILD_SED="`which_wrapper kmk_sed`"
+    KBUILD_SED="/usr/bin/kmk_sed"
   else
     fail
   fi
Index: VirtualBox-6.1.26/tools/bin/backport-commit.sh
===================================================================
--- VirtualBox-6.1.26.orig/tools/bin/backport-commit.sh
+++ VirtualBox-6.1.26/tools/bin/backport-commit.sh
@@ -19,7 +19,7 @@
 #
 # Determin script dir so we can source the common bits.
 #
-MY_SED=kmk_sed
+MY_SED=/usr/bin/kmk_sed
 MY_SCRIPT_DIR=`echo "$0" | "${MY_SED}" -e 's|\\\|/|g' -e 's|^\(.*\)/[^/][^/]*$|\1|'` # \ -> / is for windows.
 if test "${MY_SCRIPT_DIR}" = "$0"; then
     MY_SCRIPT_DIR=`pwd -L`
Index: VirtualBox-6.1.26/tools/bin/backport-common.sh
===================================================================
--- VirtualBox-6.1.26.orig/tools/bin/backport-common.sh
+++ VirtualBox-6.1.26/tools/bin/backport-common.sh
@@ -1,4 +1,4 @@
-# $Id: backport-common.sh $
+ $Id: backport-common.sh $
 ## @file
 # Common backport script bits.
 #
@@ -23,7 +23,7 @@
 MY_PRINTF=kmk_printf
     MY_RM=kmk_rm
    MY_SVN=svn
-   MY_SED=kmk_sed
+   MY_SED=/usr/bin/kmk_sed
 
 #
 # Functions.
Index: VirtualBox-6.1.26/tools/bin/backport-merge-and-commit.sh
===================================================================
--- VirtualBox-6.1.26.orig/tools/bin/backport-merge-and-commit.sh
+++ VirtualBox-6.1.26/tools/bin/backport-merge-and-commit.sh
@@ -19,7 +19,7 @@
 #
 # Determin script dir so we can invoke the two worker scripts.
 #
-MY_SED=kmk_sed
+MY_SED=/usr/bin/kmk_sed
 MY_SCRIPT_DIR=`echo "$0" | "${MY_SED}" -e 's|\\\|/|g' -e 's|^\(.*\)/[^/][^/]*$|\1|'` # \ -> / is for windows.
 if test "${MY_SCRIPT_DIR}" = "$0"; then
     MY_SCRIPT_DIR=`pwd -L`
Index: VirtualBox-6.1.26/tools/bin/backport-merge.sh
===================================================================
--- VirtualBox-6.1.26.orig/tools/bin/backport-merge.sh
+++ VirtualBox-6.1.26/tools/bin/backport-merge.sh
@@ -19,7 +19,7 @@
 #
 # Determin script dir so we can source the common bits.
 #
-MY_SED=kmk_sed
+MY_SED=/usr/bin/kmk_sed
 MY_SCRIPT_DIR=`echo "$0" | "${MY_SED}" -e 's|\\\|/|g' -e 's|^\(.*\)/[^/][^/]*$|\1|'` # \ -> / is for windows.
 if test "${MY_SCRIPT_DIR}" = "$0"; then
     MY_SCRIPT_DIR=`pwd -L`
Index: VirtualBox-6.1.26/tools/bin/gen-slickedit-workspace.sh
===================================================================
--- VirtualBox-6.1.26.orig/tools/bin/gen-slickedit-workspace.sh
+++ VirtualBox-6.1.26/tools/bin/gen-slickedit-workspace.sh
@@ -23,7 +23,7 @@ MY_CAT="kmk_cat"
 MY_CP="kmk_cp"
 MY_MKDIR="kmk_mkdir"
 MY_MV="kmk_mv"
-MY_SED="kmk_sed"
+MY_SED="/usr/bin/kmk_sed"
 MY_RM="kmk_rm"
 MY_SLEEP="kmk_sleep"
 MY_EXPR="kmk_expr"
Index: VirtualBox-6.1.26/src/VBox/Main/Makefile.kmk
===================================================================
--- VirtualBox-6.1.26.orig/src/VBox/Main/Makefile.kmk
+++ VirtualBox-6.1.26/src/VBox/Main/Makefile.kmk
@@ -235,7 +235,7 @@ $(VBOX_XIDL_FILE).ts +| $(VBOX_XIDL_FILE
 		| $$(dir $$@)
 	$(call KB_FN_AUTO_CMD_DEPS_COMMANDS)
 	$(QUIET)$(VBOX_XSLTPROC) -o $(VBOX_XIDL_FILE).ts-tmp $(VBOX_PATH_MAIN_SRC)/idl/docstrip.xsl $(VBOX_XIDL_FILE_SRC)
-	$(QUIET)$(SED)  -e 's/ *$(DOLLAR)//g'  -e '/^$(DOLLAR)/d' --output $(VBOX_XIDL_FILE).ts $(VBOX_XIDL_FILE).ts-tmp
+	/usr/bin/kmk_sed -e 's/ *$(DOLLAR)//g'  -e '/^$(DOLLAR)/d' --output $(VBOX_XIDL_FILE).ts $(VBOX_XIDL_FILE).ts-tmp
 	$(QUIET)$(RM) -- $(VBOX_XIDL_FILE).ts-tmp
 	$(QUIET)$(CP) --changed -fv -- $(VBOX_XIDL_FILE).ts $(VBOX_XIDL_FILE)
 
Index: VirtualBox-6.1.26/src/VBox/Runtime/Makefile.kmk
===================================================================
--- VirtualBox-6.1.26.orig/src/VBox/Runtime/Makefile.kmk
+++ VirtualBox-6.1.26/src/VBox/Runtime/Makefile.kmk
@@ -3662,6 +3662,7 @@ $(foreach lib,RuntimeR3 RuntimeBldProg V
 #
 # Generate the status code data.
 #
+SED = "/usr/bin/kmk_sed"
 $(IPRT_OUT_DIR)/errmsgdata.h: \
 		$(VBOX_PATH_RUNTIME_SRC)/common/err/errmsg.sed \
 		$(PATH_ROOT)/include/iprt/err.h \