1 files changed, 13 insertions, 16 deletions

diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index d75f17b56f0e..999eee1ed61c 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -60,7 +60,7 @@ rpc_unregister_sysctl(void)
 }
 
 static int proc_do_xprt(struct ctl_table *table, int write,
-			void __user *buffer, size_t *lenp, loff_t *ppos)
+			void *buffer, size_t *lenp, loff_t *ppos)
 {
 	char tmpbuf[256];
 	size_t len;
@@ -70,15 +70,15 @@ static int proc_do_xprt(struct ctl_table *table, int write,
 		return 0;
 	}
 	len = svc_print_xprts(tmpbuf, sizeof(tmpbuf));
-	return simple_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len);
+	return memory_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len);
 }
 
 static int
-proc_dodebug(struct ctl_table *table, int write,
-				void __user *buffer, size_t *lenp, loff_t *ppos)
+proc_dodebug(struct ctl_table *table, int write, void *buffer, size_t *lenp,
+	     loff_t *ppos)
 {
-	char		tmpbuf[20], c, *s = NULL;
-	char __user *p;
+	char		tmpbuf[20], *s = NULL;
+	char *p;
 	unsigned int	value;
 	size_t		left, len;
 
@@ -90,18 +90,17 @@ proc_dodebug(struct ctl_table *table, int write,
 	left = *lenp;
 
 	if (write) {
-		if (!access_ok(buffer, left))
-			return -EFAULT;
 		p = buffer;
-		while (left && __get_user(c, p) >= 0 && isspace(c))
-			left--, p++;
+		while (left && isspace(*p)) {
+			left--;
+			p++;
+		}
 		if (!left)
 			goto done;
 
 		if (left > sizeof(tmpbuf) - 1)
 			return -EINVAL;
-		if (copy_from_user(tmpbuf, p, left))
-			return -EFAULT;
+		memcpy(tmpbuf, p, left);
 		tmpbuf[left] = '\0';
 
 		value = simple_strtol(tmpbuf, &s, 0);
@@ -121,11 +120,9 @@ proc_dodebug(struct ctl_table *table, int write,
 		len = sprintf(tmpbuf, "0x%04x", *(unsigned int *) table->data);
 		if (len > left)
 			len = left;
-		if (copy_to_user(buffer, tmpbuf, len))
-			return -EFAULT;
+		memcpy(buffer, tmpbuf, len);
 		if ((left -= len) > 0) {
-			if (put_user('\n', (char __user *)buffer + len))
-				return -EFAULT;
+			*((char *)buffer + len) = '\n';
 			left--;
 		}
 	}