diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 1a7e102686b3..1ffbc1ff782c 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -5010,20 +5010,14 @@ static unsigned int binder_poll(struct file *filp,
 	return 0;
 }
 
-static int binder_ioctl_write_read(struct file *filp,
-				unsigned int cmd, unsigned long arg,
+static int binder_ioctl_write_read(struct file *filp, unsigned long arg,
 				struct binder_thread *thread)
 {
 	int ret = 0;
 	struct binder_proc *proc = filp->private_data;
-	unsigned int size = _IOC_SIZE(cmd);
 	void __user *ubuf = (void __user *)arg;
 	struct binder_write_read bwr;
 
-	if (size != sizeof(struct binder_write_read)) {
-		ret = -EINVAL;
-		goto out;
-	}
 	if (copy_from_user(&bwr, ubuf, sizeof(bwr))) {
 		ret = -EFAULT;
 		goto out;
@@ -5300,7 +5294,6 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	int ret;
 	struct binder_proc *proc = filp->private_data;
 	struct binder_thread *thread;
-	unsigned int size = _IOC_SIZE(cmd);
 	void __user *ubuf = (void __user *)arg;
 
 	/*pr_info("binder_ioctl: %d:%d %x %lx\n",
@@ -5322,7 +5315,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 	switch (cmd) {
 	case BINDER_WRITE_READ:
-		ret = binder_ioctl_write_read(filp, cmd, arg, thread);
+		ret = binder_ioctl_write_read(filp, arg, thread);
 		if (ret)
 			goto err;
 		break;
@@ -5365,10 +5358,6 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case BINDER_VERSION: {
 		struct binder_version __user *ver = ubuf;
 
-		if (size != sizeof(struct binder_version)) {
-			ret = -EINVAL;
-			goto err;
-		}
 		if (put_user(BINDER_CURRENT_PROTOCOL_VERSION,
 			     &ver->protocol_version)) {
 			ret = -EINVAL;