Hide iov_shorten() behind __KERNEL__ since it's a prototype only.  Use the
__inline__ form for iov_length() since it's usable by userspace.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 include/linux/uio.h |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/include/linux/uio.h b/include/linux/uio.h
index b7fe138..2faeea6 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -42,7 +42,7 @@ struct kvec {
  * segment lengths have been validated.  Because the individual lengths can
  * overflow a size_t when added together.
  */
-static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs)
+static __inline__ size_t iov_length(const struct iovec *iov, unsigned long nr_segs)
 {
 	unsigned long seg;
 	size_t ret = 0;
@@ -52,6 +52,8 @@ static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs)
 	return ret;
 }
 
+#ifdef __KERNEL__
 unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to);
+#endif
 
 #endif
-- 
1.6.0.6