Using __user with compat_uptr_t

[David Howells]

Hi Linus,

I've added a couple of structures for dealing with 32-bit -> 64-bit upgrade of
NFS4 mounts. They represent the NFS4 mount information provided by userspace
and they contain some pointers to further userspace data. Should these further
userspace pointers be labelled __user?

For example, is this right?:

	struct compat_nfs_string {
		compat_uint_t len;
		compat_uptr_t __user data;
	};

Or is this right?:

	struct compat_nfs_string {
		compat_uint_t len;
		compat_uptr_t data;
	};

Now it makes no difference to the compiler, but it might affect the checker
tool.

David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/