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| author |   Jérôme Pouiller <jerome.pouiller@silabs.com> | 2020-04-01 13:03:42 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-13 08:55:34 +0200 |
| commit | f42483f9efefd9ea0ea4eb054cd1e1923626e414 (patch) | |
| tree | d2ea157143622e39173fcb8de76ee763099c0c7e /drivers/staging/wfx/queue.c | |
| parent | staging: wfx: simplify hif_handle_tx_data() (diff) | |
| download | linux-dev-f42483f9efefd9ea0ea4eb054cd1e1923626e414.tar.xz linux-dev-f42483f9efefd9ea0ea4eb054cd1e1923626e414.zip | |
staging: wfx: simplify wfx_tx_queues_empty()
Thanks to skb_queue_empty_lockless(), it is not necessary to acquire the
spin_lock before to check if the queue is empty.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200401110405.80282-10-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wfx/queue.c')
| -rw-r--r-- | drivers/staging/wfx/queue.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c index 8647731e02c0..09f823929fb6 100644 --- a/drivers/staging/wfx/queue.c +++ b/drivers/staging/wfx/queue.c @@ -303,20 +303,14 @@ unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, return ktime_us_delta(now, tx_priv->xmit_timestamp); } -bool wfx_tx_queues_is_empty(struct wfx_dev *wdev) +bool wfx_tx_queues_empty(struct wfx_dev *wdev) { int i; - struct sk_buff_head *queue; - bool ret = true; - - for (i = 0; i < IEEE80211_NUM_ACS; i++) { - queue = &wdev->tx_queue[i].queue; - spin_lock_bh(&queue->lock); - if (!skb_queue_empty(queue)) - ret = false; - spin_unlock_bh(&queue->lock); - } - return ret; + + for (i = 0; i < IEEE80211_NUM_ACS; i++) + if (!skb_queue_empty_lockless(&wdev->tx_queue[i].queue)) + return false; + return true; } static bool wfx_handle_tx_data(struct wfx_dev *wdev, struct sk_buff *skb) |