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From e4568eac0464ae6d5b361b186b1ee6eb7bf0bdbb Mon Sep 17 00:00:00 2001
From: Erik Stromdahl <erik.stromdahl@gmail.com>
Date: Mon, 18 Jun 2018 17:01:29 +0300
Subject: [PATCH] ath10k: replace hardcoded constant with define
Git-commit: e4568eac0464ae6d5b361b186b1ee6eb7bf0bdbb
Patch-mainline: v4.19-rc1
References: FATE#326906

The hardcoded values used in ath10k_mac_tx_push_pending and
ath10k_mac_op_wake_tx_queue set an upper limit of how many packets that
can be consumed from the TX queue.

HTC_HOST_MAX_MSG_PER_TX_BUNDLE is a proper name for this constant, as
the value effectively limits the number of messages that can be consumed
in one step. Thus, the value is an upper limit of the number of messages
that can be added to a TX message bundle.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/ath/ath10k/htc.h | 1 +
 drivers/net/wireless/ath/ath10k/mac.c | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
index e60fbea698a9..d69bb83049c4 100644
--- a/drivers/net/wireless/ath/ath10k/htc.h
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -51,6 +51,7 @@ struct ath10k;
  */
 
 #define HTC_HOST_MAX_MSG_PER_RX_BUNDLE        8
+#define HTC_HOST_MAX_MSG_PER_TX_BUNDLE        16
 
 enum ath10k_htc_tx_flags {
 	ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE = 0x01,
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index a6a34486eca3..1cfb774be2eb 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4026,7 +4026,7 @@ void ath10k_mac_tx_push_pending(struct ath10k *ar)
 				   drv_priv);
 
 		/* Prevent aggressive sta/tid taking over tx queue */
-		max = 16;
+		max = HTC_HOST_MAX_MSG_PER_TX_BUNDLE;
 		ret = 0;
 		while (ath10k_mac_tx_can_push(hw, txq) && max--) {
 			ret = ath10k_mac_tx_push_txq(hw, txq);
@@ -4288,7 +4288,7 @@ static void ath10k_mac_op_wake_tx_queue(struct ieee80211_hw *hw,
 	struct ieee80211_txq *f_txq;
 	struct ath10k_txq *f_artxq;
 	int ret = 0;
-	int max = 16;
+	int max = HTC_HOST_MAX_MSG_PER_TX_BUNDLE;
 
 	spin_lock_bh(&ar->txqs_lock);
 	if (list_empty(&artxq->list))
-- 
2.19.2