[PATCH 05/14] atm: use list_for_each_entry

From: Geliang Tang
Date: Fri Dec 18 2015 - 10:39:59 EST


Use list_for_each_entry() instead of list_for_each() to simplify
the code.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxx>
---
net/atm/ioctl.c | 5 ++---
net/atm/resources.c | 8 ++------
2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index bbd3b63..9feb293 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -53,7 +53,7 @@ static int do_vcc_ioctl(struct socket *sock, unsigned int cmd,
struct sock *sk = sock->sk;
struct atm_vcc *vcc;
int error;
- struct list_head *pos;
+ struct atm_ioctl *ic;
void __user *argp = (void __user *)arg;

vcc = ATM_SD(sock);
@@ -163,8 +163,7 @@ static int do_vcc_ioctl(struct socket *sock, unsigned int cmd,
error = -ENOIOCTLCMD;

mutex_lock(&ioctl_mutex);
- list_for_each(pos, &ioctl_list) {
- struct atm_ioctl *ic = list_entry(pos, struct atm_ioctl, list);
+ list_for_each_entry(ic, &ioctl_list, list) {
if (try_module_get(ic->owner)) {
error = ic->ioctl(sock, cmd, arg);
module_put(ic->owner);
diff --git a/net/atm/resources.c b/net/atm/resources.c
index 0447d5d..413d919 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -51,10 +51,8 @@ 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;
@@ -238,10 +236,8 @@ int atm_dev_ioctl(unsigned int cmd, void __user *arg, int compat)
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);
error = ((copy_to_user(buf, tmp_buf, size)) ||
put_user(size, iobuf_len))
--
2.5.0


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