DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95F78206B2
From:   YueHaibing <yuehaibing@huawei.com>
To:     Maya Erez <merez@codeaurora.org>, Kalle Valo <kvalo@codeaurora.org>
CC:     YueHaibing <yuehaibing@huawei.com>,
        <linux-wireless@vger.kernel.org>, <wil6210@qti.qualcomm.com>,
        <kernel-janitors@vger.kernel.org>, <netdev@vger.kernel.org>
Subject: [PATCH] wil6210: fix debugfs_simple_attr.cocci warnings
Date:   Fri, 5 Oct 2018 11:07:26 +0000
Message-ID: <1538737646-118337-1-git-send-email-yuehaibing@huawei.com>
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Sender: linux-wireless-owner@vger.kernel.org
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Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
for debugfs files.

Semantic patch information:
Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
imposes some significant overhead as compared to
DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().

Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/net/wireless/ath/wil6210/debugfs.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 66ffae2..aa50813 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -416,8 +416,8 @@ static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
-			wil_debugfs_iomem_x32_set, "0x%08llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
+			 wil_debugfs_iomem_x32_set, "0x%08llx\n");
 
 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
 						   umode_t mode,
@@ -432,7 +432,8 @@ static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
 	data->wil = wil;
 	data->offset = value;
 
-	file = debugfs_create_file(name, mode, parent, data, &fops_iomem_x32);
+	file = debugfs_create_file_unsafe(name, mode, parent, data,
+					  &fops_iomem_x32);
 	if (!IS_ERR_OR_NULL(file))
 		wil->dbg_data.iomem_data_count++;
 
@@ -451,14 +452,15 @@ static int wil_debugfs_ulong_get(void *data, u64 *val)
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
-			wil_debugfs_ulong_set, "0x%llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
+			 wil_debugfs_ulong_set, "0x%llx\n");
 
 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
 					       struct dentry *parent,
 					       ulong *value)
 {
-	return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
+	return debugfs_create_file_unsafe(name, mode, parent, value,
+					  &wil_fops_ulong);
 }
 
 /**