linux-kernel - [PATCH -next] s390/mm: Convert to DEFINE_SHOW

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Message-ID: <20200716090703.14315-1-miaoqinglang@huawei.com>
Date:   Thu, 16 Jul 2020 17:07:03 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>
CC:     <linux-s390@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] s390/mm: Convert to DEFINE_SHOW_ATTRIBUTE

From: Chen Huang <chenhuang5@...wei.com>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Chen Huang <chenhuang5@...wei.com>
---
 arch/s390/mm/dump_pagetables.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 9adb10a05..ce65bea17 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -261,17 +261,7 @@ static int ptdump_show(struct seq_file *m, void *v)
 	return 0;
 }
 
-static int ptdump_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, ptdump_show, NULL);
-}
-
-static const struct file_operations ptdump_fops = {
-	.open		= ptdump_open,
-	.read_iter		= seq_read_iter,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(ptdump);
 
 static int pt_dump_init(void)
 {
-- 
2.17.1