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Date: Wed, 4 Mar 2020 15:53:52 +0800
From: YueHaibing <yuehaibing@...wei.com>
To: <axboe@...nel.dk>, <viro@...iv.linux.org.uk>
CC: <io-uring@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] io_uring: Fix unused function warnings
If CONFIG_NET is not set, gcc warns:
fs/io_uring.c:3110:12: warning: io_setup_async_msg defined but not used [-Wunused-function]
static int io_setup_async_msg(struct io_kiocb *req,
^~~~~~~~~~~~~~~~~~
There are many funcions wraped by CONFIG_NET, move them
together to simplify code, also fix this warning.
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
fs/io_uring.c | 98 ++++++++++++++++++++++++++++++++++-------------------------
1 file changed, 57 insertions(+), 41 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index b7c178f9..89cdc6e 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3420,6 +3420,7 @@ static int io_sync_file_range(struct io_kiocb *req, struct io_kiocb **nxt,
return 0;
}
+#if defined(CONFIG_NET)
static int io_setup_async_msg(struct io_kiocb *req,
struct io_async_msghdr *kmsg)
{
@@ -3437,7 +3438,6 @@ static int io_setup_async_msg(struct io_kiocb *req,
static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
-#if defined(CONFIG_NET)
struct io_sr_msg *sr = &req->sr_msg;
struct io_async_ctx *io = req->io;
int ret;
@@ -3463,15 +3463,11 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (!ret)
req->flags |= REQ_F_NEED_CLEANUP;
return ret;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int io_sendmsg(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
-#if defined(CONFIG_NET)
struct io_async_msghdr *kmsg = NULL;
struct socket *sock;
int ret;
@@ -3525,15 +3521,11 @@ static int io_sendmsg(struct io_kiocb *req, struct io_kiocb **nxt,
req_set_fail_links(req);
io_put_req_find_next(req, nxt);
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int io_send(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
-#if defined(CONFIG_NET)
struct socket *sock;
int ret;
@@ -3576,9 +3568,6 @@ static int io_send(struct io_kiocb *req, struct io_kiocb **nxt,
req_set_fail_links(req);
io_put_req_find_next(req, nxt);
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int __io_recvmsg_copy_hdr(struct io_kiocb *req, struct io_async_ctx *io)
@@ -3691,7 +3680,6 @@ static struct io_buffer *io_recv_buffer_select(struct io_kiocb *req,
static int io_recvmsg_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
-#if defined(CONFIG_NET)
struct io_sr_msg *sr = &req->sr_msg;
struct io_async_ctx *io = req->io;
int ret;
@@ -3716,15 +3704,11 @@ static int io_recvmsg_prep(struct io_kiocb *req,
if (!ret)
req->flags |= REQ_F_NEED_CLEANUP;
return ret;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int io_recvmsg(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
-#if defined(CONFIG_NET)
struct io_async_msghdr *kmsg = NULL;
struct socket *sock;
int ret, cflags = 0;
@@ -3785,15 +3769,11 @@ static int io_recvmsg(struct io_kiocb *req, struct io_kiocb **nxt,
req_set_fail_links(req);
io_put_req_find_next(req, nxt);
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int io_recv(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
-#if defined(CONFIG_NET)
struct io_buffer *kbuf = NULL;
struct socket *sock;
int ret, cflags = 0;
@@ -3850,15 +3830,10 @@ static int io_recv(struct io_kiocb *req, struct io_kiocb **nxt,
req_set_fail_links(req);
io_put_req_find_next(req, nxt);
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
-
static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
-#if defined(CONFIG_NET)
struct io_accept *accept = &req->accept;
if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
@@ -3870,12 +3845,8 @@ static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
accept->addr_len = u64_to_user_ptr(READ_ONCE(sqe->addr2));
accept->flags = READ_ONCE(sqe->accept_flags);
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
-#if defined(CONFIG_NET)
static int __io_accept(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
@@ -3910,12 +3881,10 @@ static void io_accept_finish(struct io_wq_work **workptr)
if (nxt)
io_wq_assign_next(workptr, nxt);
}
-#endif
static int io_accept(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
-#if defined(CONFIG_NET)
int ret;
ret = __io_accept(req, nxt, force_nonblock);
@@ -3924,14 +3893,10 @@ static int io_accept(struct io_kiocb *req, struct io_kiocb **nxt,
return -EAGAIN;
}
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
-#if defined(CONFIG_NET)
struct io_connect *conn = &req->connect;
struct io_async_ctx *io = req->io;
@@ -3948,15 +3913,11 @@ static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
return move_addr_to_kernel(conn->addr, conn->addr_len,
&io->connect.address);
-#else
- return -EOPNOTSUPP;
-#endif
}
static int io_connect(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
-#if defined(CONFIG_NET)
struct io_async_ctx __io, *io;
unsigned file_flags;
int ret;
@@ -3994,11 +3955,66 @@ static int io_connect(struct io_kiocb *req, struct io_kiocb **nxt,
io_cqring_add_event(req, ret);
io_put_req_find_next(req, nxt);
return 0;
+}
#else
+static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_sendmsg(struct io_kiocb *req, struct io_kiocb **nxt,
+ bool force_nonblock)
+{
return -EOPNOTSUPP;
-#endif
}
+static int io_send(struct io_kiocb *req, struct io_kiocb **nxt,
+ bool force_nonblock)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_recvmsg_prep(struct io_kiocb *req,
+ const struct io_uring_sqe *sqe)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_recvmsg(struct io_kiocb *req, struct io_kiocb **nxt,
+ bool force_nonblock)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_recv(struct io_kiocb *req, struct io_kiocb **nxt,
+ bool force_nonblock)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_accept(struct io_kiocb *req, struct io_kiocb **nxt,
+ bool force_nonblock)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
+{
+ return -EOPNOTSUPP;
+}
+
+static int io_connect(struct io_kiocb *req, struct io_kiocb **nxt,
+ bool force_nonblock)
+{
+ return -EOPNOTSUPP;
+}
+#endif
+
struct io_poll_table {
struct poll_table_struct pt;
struct io_kiocb *req;
--
2.7.4
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