[PATCH 3/4] io_uring/uring_cmd: get rid of io_uring_cmd_prep_setup()

[Jens Axboe <axboe@kernel.dk>]

It's a pretty pointless helper, just allocates and copies data. Fold it
into io_uring_cmd_prep().

Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 io_uring/uring_cmd.c | 34 +++++++++++++---------------------
 1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 929cad6ee326..e204f4941d72 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -181,8 +181,7 @@ void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, u64 res2,
 }
 EXPORT_SYMBOL_GPL(io_uring_cmd_done);
 
-static int io_uring_cmd_prep_setup(struct io_kiocb *req,
-				   const struct io_uring_sqe *sqe)
+int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 	struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
 	struct io_async_cmd *ac;
@@ -190,6 +189,18 @@ static int io_uring_cmd_prep_setup(struct io_kiocb *req,
 	/* see io_uring_cmd_get_async_data() */
 	BUILD_BUG_ON(offsetof(struct io_async_cmd, data) != 0);
 
+	if (sqe->__pad1)
+		return -EINVAL;
+
+	ioucmd->flags = READ_ONCE(sqe->uring_cmd_flags);
+	if (ioucmd->flags & ~IORING_URING_CMD_MASK)
+		return -EINVAL;
+
+	if (ioucmd->flags & IORING_URING_CMD_FIXED)
+		req->buf_index = READ_ONCE(sqe->buf_index);
+
+	ioucmd->cmd_op = READ_ONCE(sqe->cmd_op);
+
 	ac = io_uring_alloc_async_data(&req->ctx->cmd_cache, req);
 	if (!ac)
 		return -ENOMEM;
@@ -207,25 +218,6 @@ static int io_uring_cmd_prep_setup(struct io_kiocb *req,
 	return 0;
 }
 
-int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
-{
-	struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
-
-	if (sqe->__pad1)
-		return -EINVAL;
-
-	ioucmd->flags = READ_ONCE(sqe->uring_cmd_flags);
-	if (ioucmd->flags & ~IORING_URING_CMD_MASK)
-		return -EINVAL;
-
-	if (ioucmd->flags & IORING_URING_CMD_FIXED)
-		req->buf_index = READ_ONCE(sqe->buf_index);
-
-	ioucmd->cmd_op = READ_ONCE(sqe->cmd_op);
-
-	return io_uring_cmd_prep_setup(req, sqe);
-}
-
 int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags)
 {
 	struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
-- 
2.49.0