linux-kernel - [PATCH -next] crypto: caam: Convert to DEFINE_SHOW

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Message-ID: <20200716090403.13507-1-miaoqinglang@huawei.com>
Date:   Thu, 16 Jul 2020 17:04:03 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Horia Geantă <horia.geanta@....com>,
        Aymen Sghaier <aymen.sghaier@....com>
CC:     <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] crypto: caam: Convert to DEFINE_SHOW_ATTRIBUTE

From: Liu Shixin <liushixin2@...wei.com>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
 drivers/crypto/caam/dpseci-debugfs.c | 23 ++---------------------
 1 file changed, 2 insertions(+), 21 deletions(-)

diff --git a/drivers/crypto/caam/dpseci-debugfs.c b/drivers/crypto/caam/dpseci-debugfs.c
index aa10841b6..0eca8c2fd 100644
--- a/drivers/crypto/caam/dpseci-debugfs.c
+++ b/drivers/crypto/caam/dpseci-debugfs.c
@@ -44,33 +44,14 @@ static int dpseci_dbg_fqs_show(struct seq_file *file, void *offset)
 	return 0;
 }
 
-static int dpseci_dbg_fqs_open(struct inode *inode, struct file *file)
-{
-	int err;
-	struct dpaa2_caam_priv *priv;
-
-	priv = (struct dpaa2_caam_priv *)inode->i_private;
-
-	err = single_open(file, dpseci_dbg_fqs_show, priv);
-	if (err < 0)
-		dev_err(priv->dev, "single_open() failed\n");
-
-	return err;
-}
-
-static const struct file_operations dpseci_dbg_fq_ops = {
-	.open = dpseci_dbg_fqs_open,
-	.read_iter = seq_read_iter,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(dpseci_dbg_fqs);
 
 void dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv)
 {
 	priv->dfs_root = debugfs_create_dir(dev_name(priv->dev), NULL);
 
 	debugfs_create_file("fq_stats", 0444, priv->dfs_root, priv,
-			    &dpseci_dbg_fq_ops);
+			    &dpseci_dbg_fqs_fops);
 }
 
 void dpaa2_dpseci_debugfs_exit(struct dpaa2_caam_priv *priv)
-- 
2.17.1