[PATCH 4/4] io_uring/rw: open code io_prep_rw_setup()

[Pavel Begunkov <asml.silence@gmail.com>]

Open code io_prep_rw_setup() into its only caller, it doesn't provide
any meaningful abstraction anymore.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/rw.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/io_uring/rw.c b/io_uring/rw.c
index 0e0d2a19f21d..2e35e7e68ff8 100644
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -204,17 +204,6 @@ static int io_rw_alloc_async(struct io_kiocb *req)
 	return 0;
 }
 
-static int io_prep_rw_setup(struct io_kiocb *req, int ddir, bool do_import)
-{
-	struct io_async_rw *rw;
-
-	if (!do_import || io_do_buffer_select(req))
-		return 0;
-
-	rw = req->async_data;
-	return io_import_rw_buffer(ddir, req, rw, 0);
-}
-
 static inline void io_meta_save_state(struct io_async_rw *io)
 {
 	io->meta_state.seed = io->meta.seed;
@@ -287,10 +276,14 @@ static int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe,
 	rw->addr = READ_ONCE(sqe->addr);
 	rw->len = READ_ONCE(sqe->len);
 	rw->flags = READ_ONCE(sqe->rw_flags);
-	ret = io_prep_rw_setup(req, ddir, do_import);
 
-	if (unlikely(ret))
-		return ret;
+	if (do_import && !io_do_buffer_select(req)) {
+		struct io_async_rw *io = req->async_data;
+
+		ret = io_import_rw_buffer(ddir, req, io, 0);
+		if (unlikely(ret))
+			return ret;
+	}
 
 	attr_type_mask = READ_ONCE(sqe->attr_type_mask);
 	if (attr_type_mask) {
-- 
2.48.1