ath10k: remove wmi pending count limit

It is no longer used nor necessary since WMI
commands can block.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

1 files changed, 0 insertions, 32 deletions

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 9152daea9d96..b29d2b954c0e 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -23,30 +23,6 @@
 #include "wmi.h"
 #include "mac.h"
 
-void ath10k_wmi_flush_tx(struct ath10k *ar)
-{
-        int ret;
-
-        lockdep_assert_held(&ar->conf_mutex);
-
-        if (ar->state == ATH10K_STATE_WEDGED) {
-                ath10k_warn("wmi flush skipped - device is wedged anyway\n");
-                return;
-        }
-
-        ret = wait_event_timeout(ar->wmi.wq,
-                                 atomic_read(&ar->wmi.pending_tx_count) == 0,
-                                 5*HZ);
-        if (atomic_read(&ar->wmi.pending_tx_count) == 0)
-                return;
-
-        if (ret == 0)
-                ret = -ETIMEDOUT;
-
-        if (ret < 0)
-                ath10k_warn("wmi flush failed (%d)\n", ret);
-}
-
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
 {
         int ret;
@@ -85,9 +61,6 @@ static struct sk_buff *ath10k_wmi_alloc_skb(u32 len)
 static void ath10k_wmi_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
 {
         dev_kfree_skb(skb);
-
-        if (atomic_sub_return(1, &ar->wmi.pending_tx_count) == 0)
-                wake_up(&ar->wmi.wq);
 }
 
 static int ath10k_wmi_cmd_send_nowait(struct ath10k *ar, struct sk_buff *skb,
@@ -1243,7 +1216,6 @@ int ath10k_wmi_attach(struct ath10k *ar)
 {
         init_completion(&ar->wmi.service_ready);
         init_completion(&ar->wmi.unified_ready);
-        init_waitqueue_head(&ar->wmi.wq);
         init_waitqueue_head(&ar->wmi.tx_credits_wq);
 
         skb_queue_head_init(&ar->wmi.wmi_event_list);
@@ -1254,10 +1226,6 @@ int ath10k_wmi_attach(struct ath10k *ar)
 
 void ath10k_wmi_detach(struct ath10k *ar)
 {
-        /* HTC should've drained the packets already */
-        if (WARN_ON(atomic_read(&ar->wmi.pending_tx_count) > 0))
-                ath10k_warn("there are still pending packets\n");
-
         cancel_work_sync(&ar->wmi.wmi_event_work);
         skb_queue_purge(&ar->wmi.wmi_event_list);
 }