diff --git a/src/VBox/Additions/common/VBoxGuest/VBoxGuest-linux.c b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-linux.c
index bd81000..aa9d6b0 100644
--- a/src/VBox/Additions/common/VBoxGuest/VBoxGuest-linux.c
+++ b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-linux.c
@@ -958,7 +958,7 @@ EXPORT_SYMBOL(VBoxGuestIDCCall);
 #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)
     {
@@ -973,7 +973,7 @@ static int vgdrvLinuxParamLogGrpSet(const char *pszValue, struct kernel_param *p
 }
 
 /** 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';
@@ -984,7 +984,7 @@ static int vgdrvLinuxParamLogGrpGet(char *pszBuf, struct kernel_param *pParam)
 
 
 /** 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)
     {
@@ -998,7 +998,7 @@ static int vgdrvLinuxParamLogFlagsSet(const char *pszValue, struct kernel_param
 }
 
 /** 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';
@@ -1009,7 +1009,7 @@ static int vgdrvLinuxParamLogFlagsGet(char *pszBuf, struct kernel_param *pParam)
 
 
 /** 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)
     {
@@ -1023,7 +1023,7 @@ static int vgdrvLinuxParamLogDstSet(const char *pszValue, struct kernel_param *p
 }
 
 /** 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';
@@ -1034,7 +1034,7 @@ static int vgdrvLinuxParamLogDstGet(char *pszBuf, struct kernel_param *pParam)
 
 
 /** 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'
@@ -1052,7 +1052,7 @@ static int vgdrvLinuxParamR3LogToHostSet(const char *pszValue, struct kernel_par
 }
 
 /** 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);