netdev - [RESNED] sunrpc: convert to DEFINE_SHOW

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Message-Id: <20181221155936.32638-1-tiny.windzz@gmail.com>
Date:   Fri, 21 Dec 2018 10:59:36 -0500
From:   Yangtao Li <tiny.windzz@...il.com>
To:     trond.myklebust@...merspace.com, anna.schumaker@...app.com,
        bfields@...ldses.org, jlayton@...nel.org, davem@...emloft.net
Cc:     linux-nfs@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yangtao Li <tiny.windzz@...il.com>
Subject: [RESNED] sunrpc: convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
---
 net/sunrpc/rpc_pipe.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 4fda18d47e2c..69663681bf9d 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1266,7 +1266,7 @@ static const struct rpc_pipe_ops gssd_dummy_pipe_ops = {
  * that this file will be there and have a certain format.
  */
 static int
-rpc_show_dummy_info(struct seq_file *m, void *v)
+rpc_dummy_info_show(struct seq_file *m, void *v)
 {
 	seq_printf(m, "RPC server: %s\n", utsname()->nodename);
 	seq_printf(m, "service: foo (1) version 0\n");
@@ -1275,25 +1275,12 @@ rpc_show_dummy_info(struct seq_file *m, void *v)
 	seq_printf(m, "port: 0\n");
 	return 0;
 }
-
-static int
-rpc_dummy_info_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, rpc_show_dummy_info, NULL);
-}
-
-static const struct file_operations rpc_dummy_info_operations = {
-	.owner		= THIS_MODULE,
-	.open		= rpc_dummy_info_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(rpc_dummy_info);
 
 static const struct rpc_filelist gssd_dummy_info_file[] = {
 	[0] = {
 		.name = "info",
-		.i_fop = &rpc_dummy_info_operations,
+		.i_fop = &rpc_dummy_info_fops,
 		.mode = S_IFREG | 0400,
 	},
 };
-- 
2.17.0