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staging: wfx: drop struct wfx_queue_stats

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There is no reason to keep the intermediate struct wfx_queue_stats.
Relocate its members to struct wfx_dev.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200401110405.80282-25-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jérôme Pouiller 2020-04-01 13:03:57 +02:00 committed by Greg Kroah-Hartman
parent 41c5dfcdbc
commit d32cedbec0
4 changed files with 18 additions and 28 deletions
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36
drivers/staging/wfx/queue.c
View file

@ -121,12 +121,11 @@ void wfx_tx_queues_clear(struct wfx_dev *wdev)
int i;
struct sk_buff *item;
struct sk_buff_head gc_list;
struct wfx_queue_stats *stats = &wdev->tx_queue_stats;
skb_queue_head_init(&gc_list);
for (i = 0; i < IEEE80211_NUM_ACS; ++i)
wfx_tx_queue_clear(wdev, &wdev->tx_queue[i], &gc_list);
wake_up(&stats->wait_link_id_empty);
wake_up(&wdev->tx_dequeue);
while ((item = skb_dequeue(&gc_list)) != NULL)
wfx_skb_dtor(wdev, item);
}
@ -135,10 +134,9 @@ void wfx_tx_queues_init(struct wfx_dev *wdev)
{
int i;
memset(&wdev->tx_queue_stats, 0, sizeof(wdev->tx_queue_stats));
memset(wdev->tx_queue, 0, sizeof(wdev->tx_queue));
skb_queue_head_init(&wdev->tx_queue_stats.pending);
init_waitqueue_head(&wdev->tx_queue_stats.wait_link_id_empty);
skb_queue_head_init(&wdev->tx_pending);
init_waitqueue_head(&wdev->tx_dequeue);
for (i = 0; i < IEEE80211_NUM_ACS; ++i) {
skb_queue_head_init(&wdev->tx_queue[i].normal);
@ -148,7 +146,7 @@ void wfx_tx_queues_init(struct wfx_dev *wdev)
void wfx_tx_queues_deinit(struct wfx_dev *wdev)
{
WARN_ON(!skb_queue_empty(&wdev->tx_queue_stats.pending));
WARN_ON(!skb_queue_empty(&wdev->tx_pending));
wfx_tx_queues_clear(wdev);
}
@ -165,28 +163,26 @@ void wfx_tx_queue_put(struct wfx_dev *wdev, struct wfx_queue *queue,
int wfx_pending_requeue(struct wfx_dev *wdev, struct sk_buff *skb)
{
struct wfx_queue_stats *stats = &wdev->tx_queue_stats;
struct wfx_queue *queue = &wdev->tx_queue[skb_get_queue_mapping(skb)];
WARN_ON(skb_get_queue_mapping(skb) > 3);
WARN_ON(!atomic_read(&queue->pending_frames));
atomic_dec(&queue->pending_frames);
skb_unlink(skb, &stats->pending);
skb_unlink(skb, &wdev->tx_pending);
wfx_tx_queue_put(wdev, queue, skb);
return 0;
}
int wfx_pending_remove(struct wfx_dev *wdev, struct sk_buff *skb)
{
struct wfx_queue_stats *stats = &wdev->tx_queue_stats;
struct wfx_queue *queue = &wdev->tx_queue[skb_get_queue_mapping(skb)];
WARN_ON(skb_get_queue_mapping(skb) > 3);
WARN_ON(!atomic_read(&queue->pending_frames));
atomic_dec(&queue->pending_frames);
skb_unlink(skb, &stats->pending);
skb_unlink(skb, &wdev->tx_pending);
wfx_skb_dtor(wdev, skb);
return 0;
@ -196,32 +192,30 @@ struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id)
{
struct sk_buff *skb;
struct hif_req_tx *req;
struct wfx_queue_stats *stats = &wdev->tx_queue_stats;
spin_lock_bh(&stats->pending.lock);
skb_queue_walk(&stats->pending, skb) {
spin_lock_bh(&wdev->tx_pending.lock);
skb_queue_walk(&wdev->tx_pending, skb) {
req = wfx_skb_txreq(skb);
if (req->packet_id == packet_id) {
spin_unlock_bh(&stats->pending.lock);
spin_unlock_bh(&wdev->tx_pending.lock);
return skb;
}
}
spin_unlock_bh(&stats->pending.lock);
spin_unlock_bh(&wdev->tx_pending.lock);
WARN(1, "cannot find packet in pending queue");
return NULL;
}
void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms)
{
struct wfx_queue_stats *stats = &wdev->tx_queue_stats;
ktime_t now = ktime_get();
struct wfx_tx_priv *tx_priv;
struct hif_req_tx *req;
struct sk_buff *skb;
bool first = true;
spin_lock_bh(&stats->pending.lock);
skb_queue_walk(&stats->pending, skb) {
spin_lock_bh(&wdev->tx_pending.lock);
skb_queue_walk(&wdev->tx_pending, skb) {
tx_priv = wfx_skb_tx_priv(skb);
req = wfx_skb_txreq(skb);
if (ktime_after(now, ktime_add_ms(tx_priv->xmit_timestamp,
@ -236,7 +230,7 @@ void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms)
ktime_ms_delta(now, tx_priv->xmit_timestamp));
}
}
spin_unlock_bh(&stats->pending.lock);
spin_unlock_bh(&wdev->tx_pending.lock);
}
unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev,
@ -377,9 +371,9 @@ struct hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev)
skb = wfx_tx_queues_get_skb(wdev);
if (!skb)
return NULL;
skb_queue_tail(&wdev->tx_queue_stats.pending, skb);
skb_queue_tail(&wdev->tx_pending, skb);
if (wfx_tx_queues_empty(wdev))
wake_up(&wdev->tx_queue_stats.wait_link_id_empty);
wake_up(&wdev->tx_dequeue);
// FIXME: is it useful?
if (wfx_handle_tx_data(wdev, skb))
continue;

5
drivers/staging/wfx/queue.h
View file

@ -25,11 +25,6 @@ struct wfx_queue {
atomic_t pending_frames;
};
struct wfx_queue_stats {
struct sk_buff_head pending;
wait_queue_head_t wait_link_id_empty;
};
void wfx_tx_lock(struct wfx_dev *wdev);
void wfx_tx_unlock(struct wfx_dev *wdev);
void wfx_tx_flush(struct wfx_dev *wdev);

2
drivers/staging/wfx/sta.c
View file

@ -323,7 +323,7 @@ static int __wfx_flush(struct wfx_dev *wdev, bool drop)
for (;;) {
if (drop)
wfx_tx_queues_clear(wdev);
if (wait_event_timeout(wdev->tx_queue_stats.wait_link_id_empty,
if (wait_event_timeout(wdev->tx_dequeue,
wfx_tx_queues_empty(wdev),
2 * HZ) <= 0)
return -ETIMEDOUT;

3
drivers/staging/wfx/wfx.h
View file

@ -50,7 +50,8 @@ struct wfx_dev {
struct wfx_hif_cmd hif_cmd;
struct wfx_queue tx_queue[4];
struct wfx_queue_stats tx_queue_stats;
struct sk_buff_head tx_pending;
wait_queue_head_t tx_dequeue;
atomic_t tx_lock;
atomic_t packet_id;