io_uring: kill io_rw_buffer_select() wrapper

After the recent changes, this is direct call to io_buffer_select()
anyway. With this change, there are no wrappers left for provided
buffer selection.

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

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 2b87c89d23751d63fa854ce27bc391ed8c46100c..e13316969e9ecb003f9a6cb7f5189b11c1c020d9 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3486,12 +3486,6 @@ static void __user *io_buffer_select(struct io_kiocb *req, size_t *len,
        return ERR_PTR(-ENOBUFS);
 }
 
-static void __user *io_rw_buffer_select(struct io_kiocb *req, size_t *len,
-                                       unsigned int issue_flags)
-{
-       return io_buffer_select(req, len, req->buf_index, issue_flags);
-}
-
 #ifdef CONFIG_COMPAT
 static ssize_t io_compat_import(struct io_kiocb *req, struct iovec *iov,
                                unsigned int issue_flags)
@@ -3499,7 +3493,7 @@ static ssize_t io_compat_import(struct io_kiocb *req, struct iovec *iov,
        struct compat_iovec __user *uiov;
        compat_ssize_t clen;
        void __user *buf;
-       ssize_t len;
+       size_t len;
 
        uiov = u64_to_user_ptr(req->rw.addr);
        if (!access_ok(uiov, sizeof(*uiov)))
@@ -3510,7 +3504,7 @@ static ssize_t io_compat_import(struct io_kiocb *req, struct iovec *iov,
                return -EINVAL;
 
        len = clen;
-       buf = io_rw_buffer_select(req, &len, issue_flags);
+       buf = io_buffer_select(req, &len, req->buf_index, issue_flags);
        if (IS_ERR(buf))
                return PTR_ERR(buf);
        iov[0].iov_base = buf;
@@ -3532,7 +3526,7 @@ static ssize_t __io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,
        len = iov[0].iov_len;
        if (len < 0)
                return -EINVAL;
-       buf = io_rw_buffer_select(req, &len, issue_flags);
+       buf = io_buffer_select(req, &len, req->buf_index, issue_flags);
        if (IS_ERR(buf))
                return PTR_ERR(buf);
        iov[0].iov_base = buf;
@@ -3588,7 +3582,8 @@ static struct iovec *__io_import_iovec(int rw, struct io_kiocb *req,
 
        if (opcode == IORING_OP_READ || opcode == IORING_OP_WRITE) {
                if (req->flags & REQ_F_BUFFER_SELECT) {
-                       buf = io_rw_buffer_select(req, &sqe_len, issue_flags);
+                       buf = io_buffer_select(req, &sqe_len, req->buf_index,
+                                               issue_flags);
                        if (IS_ERR(buf))
                                return ERR_CAST(buf);
                        req->rw.len = sqe_len;