[PATCH] sparse: nfs partial annotation

fs/nfs/direct.c

@@ -475,7 +475,7 @@ nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t
 	struct address_space *mapping = file->f_mapping;
 	struct inode *inode = mapping->host;
 	struct iovec iov = {
-		.iov_base = (char *)buf,
+		.iov_base = buf,
 		.iov_len = count,
 	};
 

fs/nfs/idmap.c

@@ -75,9 +75,10 @@ struct idmap {
 	struct idmap_hashtable idmap_group_hash;
 };
 
-static ssize_t   idmap_pipe_upcall(struct file *, struct rpc_pipe_msg *, char *,
+static ssize_t   idmap_pipe_upcall(struct file *, struct rpc_pipe_msg *,
+		     char __user *, size_t);
+static ssize_t   idmap_pipe_downcall(struct file *, const char __user *,
 		     size_t);
-static ssize_t   idmap_pipe_downcall(struct file *, const char *, size_t);
 void             idmap_pipe_destroy_msg(struct rpc_pipe_msg *);
 
 static unsigned int fnvhash32(const void *, size_t);
@@ -332,7 +333,7 @@ nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h,
 /* RPC pipefs upcall/downcall routines */
 static ssize_t
 idmap_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg,
-    char *dst, size_t buflen)
+    char __user *dst, size_t buflen)
 {
         char *data = (char *)msg->data + msg->copied;
         ssize_t mlen = msg->len - msg->copied;
@@ -353,7 +354,7 @@ idmap_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg,
 }
 
 static ssize_t
-idmap_pipe_downcall(struct file *filp, const char *src, size_t mlen)
+idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
 {
         struct rpc_inode *rpci = RPC_I(filp->f_dentry->d_inode);
 	struct idmap *idmap = (struct idmap *)rpci->private;

include/linux/nfs4_mount.h

@@ -20,7 +20,7 @@
 
 struct nfs_string {
 	unsigned int len;
-	const char* data;
+	const char __user * data;
 };
 
 struct nfs4_mount_data {
@@ -45,14 +45,14 @@ struct nfs4_mount_data {
 	struct nfs_string hostname;		/* 1 */
 	/* Server IP address */
 	unsigned int host_addrlen;		/* 1 */
-	struct sockaddr* host_addr;		/* 1 */
+	struct sockaddr __user * host_addr;	/* 1 */
 
 	/* Transport protocol to use */
 	int proto;				/* 1 */
 
 	/* Pseudo-flavours to use for authentication. See RFC2623 */
 	int auth_flavourlen;			/* 1 */
-	int *auth_flavours;			/* 1 */
+	int __user *auth_flavours;		/* 1 */
 };
 
 /* bits in the flags field */