diff -urN VBoxGuestAdditions-amd64.orig/src/vboxguest-5.2.6/vboxguest/VBoxGuest-linux.c VBoxGuestAdditions-amd64/src/vboxguest-5.2.6/vboxguest/VBoxGuest-linux.c
--- VBoxGuestAdditions-amd64.orig/src/vboxguest-5.2.6/vboxguest/VBoxGuest-linux.c	2018-01-15 21:51:01.000000000 +0800
+++ VBoxGuestAdditions-amd64/src/vboxguest-5.2.6/vboxguest/VBoxGuest-linux.c	2018-01-19 23:51:11.000000000 +0800
@@ -1058,7 +1058,7 @@
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
 
 /** log and dbg_log parameter setter. */
-static int vgdrvLinuxParamLogGrpSet(const char *pszValue, struct kernel_param *pParam)
+static int vgdrvLinuxParamLogGrpSet(const char *pszValue, const struct kernel_param *pParam)
 {
     if (g_fLoggerCreated)
     {
@@ -1073,7 +1073,7 @@
 }
 
 /** log and dbg_log parameter getter. */
-static int vgdrvLinuxParamLogGrpGet(char *pszBuf, struct kernel_param *pParam)
+static int vgdrvLinuxParamLogGrpGet(char *pszBuf, const struct kernel_param *pParam)
 {
     PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
     *pszBuf = '\0';
@@ -1084,7 +1084,7 @@
 
 
 /** log and dbg_log_flags parameter setter. */
-static int vgdrvLinuxParamLogFlagsSet(const char *pszValue, struct kernel_param *pParam)
+static int vgdrvLinuxParamLogFlagsSet(const char *pszValue, const struct kernel_param *pParam)
 {
     if (g_fLoggerCreated)
     {
@@ -1098,7 +1098,7 @@
 }
 
 /** log and dbg_log_flags parameter getter. */
-static int vgdrvLinuxParamLogFlagsGet(char *pszBuf, struct kernel_param *pParam)
+static int vgdrvLinuxParamLogFlagsGet(char *pszBuf, const struct kernel_param *pParam)
 {
     PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
     *pszBuf = '\0';
@@ -1109,7 +1109,7 @@
 
 
 /** log and dbg_log_dest parameter setter. */
-static int vgdrvLinuxParamLogDstSet(const char *pszValue, struct kernel_param *pParam)
+static int vgdrvLinuxParamLogDstSet(const char *pszValue, const struct kernel_param *pParam)
 {
     if (g_fLoggerCreated)
     {
@@ -1123,7 +1123,7 @@
 }
 
 /** log and dbg_log_dest parameter getter. */
-static int vgdrvLinuxParamLogDstGet(char *pszBuf, struct kernel_param *pParam)
+static int vgdrvLinuxParamLogDstGet(char *pszBuf, const struct kernel_param *pParam)
 {
     PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
     *pszBuf = '\0';
@@ -1134,7 +1134,7 @@
 
 
 /** r3_log_to_host parameter setter. */
-static int vgdrvLinuxParamR3LogToHostSet(const char *pszValue, struct kernel_param *pParam)
+static int vgdrvLinuxParamR3LogToHostSet(const char *pszValue, const struct kernel_param *pParam)
 {
     if (    pszValue == NULL
         || *pszValue == '\0'
@@ -1152,7 +1152,7 @@
 }
 
 /** r3_log_to_host parameter getter. */
-static int vgdrvLinuxParamR3LogToHostGet(char *pszBuf, struct kernel_param *pParam)
+static int vgdrvLinuxParamR3LogToHostGet(char *pszBuf, const struct kernel_param *pParam)
 {
     strcpy(pszBuf, g_DevExt.fLoggingEnabled ? "enabled" : "disabled");
     return strlen(pszBuf);
diff -urN VBoxGuestAdditions-amd64.orig/src/vboxguest-5.2.6/vboxvideo/vbox_mode.c VBoxGuestAdditions-amd64/src/vboxguest-5.2.6/vboxvideo/vbox_mode.c
--- VBoxGuestAdditions-amd64.orig/src/vboxguest-5.2.6/vboxvideo/vbox_mode.c	2018-01-15 21:51:01.000000000 +0800
+++ VBoxGuestAdditions-amd64/src/vboxguest-5.2.6/vboxvideo/vbox_mode.c	2018-01-20 00:00:09.716758642 +0800
@@ -397,7 +397,7 @@
 
 	/* pick the encoder ids */
 	if (enc_id)
-		return drm_encoder_find(connector->dev, enc_id);
+		return drm_encoder_find(connector->dev, NULL, enc_id);
 
 	return NULL;
 }