32-bit build warning cleanups

We need to cast pointers to uintptr_t first before casting to 64-bit,
or they complain about the differences in size.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

src/include/liburing.h

diff --git a/src/include/liburing.h b/src/include/liburing.h
index 105f5dc..b5aab6e 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -735,8 +735,9 @@
 					  const char *path,
 					  size_t len)
 {
-	io_uring_prep_rw(IORING_OP_GETXATTR, sqe, 0, name, len, (__u64) value);
-	sqe->addr3 = (__u64) path;
+	io_uring_prep_rw(IORING_OP_GETXATTR, sqe, 0, name, len,
+				(__u64) (uintptr_t) value);
+	sqe->addr3 = (__u64) (uintptr_t) path;
 	sqe->xattr_flags = 0;
 }
 
@@ -747,8 +748,9 @@
 					  int flags,
 					  size_t len)
 {
-	io_uring_prep_rw(IORING_OP_SETXATTR, sqe, 0, name, len, (__u64) value);
-	sqe->addr3 = (__u64) path;
+	io_uring_prep_rw(IORING_OP_SETXATTR, sqe, 0, name, len,
+				(__u64) (uintptr_t) value);
+	sqe->addr3 = (__u64) (uintptr_t) path;
 	sqe->xattr_flags = flags;
 }
 
@@ -758,7 +760,8 @@
 					   const char *value,
 					   size_t      len)
 {
-	io_uring_prep_rw(IORING_OP_FGETXATTR, sqe, fd, name, len, (__u64) value);
+	io_uring_prep_rw(IORING_OP_FGETXATTR, sqe, fd, name, len,
+				(__u64) (uintptr_t) value);
 	sqe->xattr_flags = 0;
 }
 
@@ -769,7 +772,8 @@
 					   int         flags,
 					   size_t      len)
 {
-	io_uring_prep_rw(IORING_OP_FSETXATTR, sqe, fd, name, len, (__u64) value);
+	io_uring_prep_rw(IORING_OP_FSETXATTR, sqe, fd, name, len,
+				(__u64) (uintptr_t) value);
 	sqe->xattr_flags = flags;
 }