fs/vboxsf/super.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/fs/vboxsf/super.c b/fs/vboxsf/super.c
index 4f5e59f06284..37dd3fe5b1e9 100644
--- a/fs/vboxsf/super.c
+++ b/fs/vboxsf/super.c
@@ -21,10 +21,7 @@
 
 #define VBOXSF_SUPER_MAGIC 0x786f4256 /* 'VBox' little endian */
 
-#define VBSF_MOUNT_SIGNATURE_BYTE_0 ('\000')
-#define VBSF_MOUNT_SIGNATURE_BYTE_1 ('\377')
-#define VBSF_MOUNT_SIGNATURE_BYTE_2 ('\376')
-#define VBSF_MOUNT_SIGNATURE_BYTE_3 ('\375')
+static const unsigned char VBSF_MOUNT_SIGNATURE[4] = "\000\377\376\375";
 
 static int follow_symlinks;
 module_param(follow_symlinks, int, 0444);
@@ -386,12 +383,7 @@ static int vboxsf_setup(void)
 
 static int vboxsf_parse_monolithic(struct fs_context *fc, void *data)
 {
-	unsigned char *options = data;
-
-	if (options && options[0] == VBSF_MOUNT_SIGNATURE_BYTE_0 &&
-		       options[1] == VBSF_MOUNT_SIGNATURE_BYTE_1 &&
-		       options[2] == VBSF_MOUNT_SIGNATURE_BYTE_2 &&
-		       options[3] == VBSF_MOUNT_SIGNATURE_BYTE_3) {
+	if (data && !memcmp(data, VBSF_MOUNT_SIGNATURE, 4)) {
 		vbg_err("vboxsf: Old binary mount data not supported, remove obsolete mount.vboxsf and/or update your VBoxService.\n");
 		return -EINVAL;
 	}