linux-kernel - [PATCH net-next] atm: Use list_for_each_entry() to simplify code in resources.c

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Date:   Thu, 10 Jun 2021 21:03:55 +0800
From:   Wang Hai <wanghai38@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <gustavoars@...nel.org>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next] atm: Use list_for_each_entry() to simplify code in resources.c

Convert list_for_each() to list_for_each_entry() where
applicable. This simplifies the code.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 net/atm/resources.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/net/atm/resources.c b/net/atm/resources.c
index 53236986dfe0..2b2d33eeaf20 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -52,10 +52,8 @@ static struct atm_dev *__alloc_atm_dev(const char *type)
 static struct atm_dev *__atm_dev_lookup(int number)
 {
 	struct atm_dev *dev;
-	struct list_head *p;
 
-	list_for_each(p, &atm_devs) {
-		dev = list_entry(p, struct atm_dev, dev_list);
+	list_for_each_entry(dev, &atm_devs, dev_list) {
 		if (dev->number == number) {
 			atm_dev_hold(dev);
 			return dev;
@@ -215,8 +213,7 @@ int atm_getnames(void __user *buf, int __user *iobuf_len)
 		return -ENOMEM;
 	}
 	tmp_p = tmp_buf;
-	list_for_each(p, &atm_devs) {
-		dev = list_entry(p, struct atm_dev, dev_list);
+	list_for_each_entry(dev, &atm_devs, dev_list) {
 		*tmp_p++ = dev->number;
 	}
 	mutex_unlock(&atm_dev_mutex);
-- 
2.17.1