[PATCH net-next 1/6] s390/qeth: don't call INIT_LIST_HEAD() on iob's list entry

Julian Wiedmann
2020-12-07T13:13:25Z

INIT_LIST_HEAD() only needs to be called on actual list heads.
While at it clarify the naming of the field.

Suggested-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
---
drivers/s390/net/qeth_core.h | 2 +-
drivers/s390/net/qeth_core_main.c | 9 ++++-----
2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 0e9af2fbaa76..69b474f8735e 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -624,7 +624,7 @@ struct qeth_reply {
};

struct qeth_cmd_buffer {
- struct list_head list;
+ struct list_head list_entry;
struct completion done;
spinlock_t lock;
unsigned int length;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 319190824cd2..8171b9d3a70e 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -615,7 +615,7 @@ static void qeth_enqueue_cmd(struct qeth_card *card,
struct qeth_cmd_buffer *iob)
{
spin_lock_irq(&card->lock);
- list_add_tail(&iob->list, &card->cmd_waiter_list);
+ list_add_tail(&iob->list_entry, &card->cmd_waiter_list);
spin_unlock_irq(&card->lock);
}

@@ -623,7 +623,7 @@ static void qeth_dequeue_cmd(struct qeth_card *card,
struct qeth_cmd_buffer *iob)
{
spin_lock_irq(&card->lock);
- list_del(&iob->list);
+ list_del(&iob->list_entry);
spin_unlock_irq(&card->lock);
}

@@ -977,7 +977,7 @@ static void qeth_clear_ipacmd_list(struct qeth_card *card)
QETH_CARD_TEXT(card, 4, "clipalst");

spin_lock_irqsave(&card->lock, flags);
- list_for_each_entry(iob, &card->cmd_waiter_list, list)
+ list_for_each_entry(iob, &card->cmd_waiter_list, list_entry)
qeth_notify_cmd(iob, -ECANCELED);
spin_unlock_irqrestore(&card->lock, flags);
}
@@ -1047,7 +1047,6 @@ struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,

init_completion(&iob->done);
spin_lock_init(&iob->lock);
- INIT_LIST_HEAD(&iob->list);
refcount_set(&iob->ref_count, 1);
iob->channel = channel;
iob->timeout = timeout;
@@ -1094,7 +1093,7 @@ static void qeth_issue_next_read_cb(struct qeth_card *card,

/* match against pending cmd requests */
spin_lock_irqsave(&card->lock, flags);
- list_for_each_entry(tmp, &card->cmd_waiter_list, list) {
+ list_for_each_entry(tmp, &card->cmd_waiter_list, list_entry) {
if (tmp->match && tmp->match(tmp, iob)) {
request = tmp;
/* take the object outside the lock */
--
2.17.1