netdev - [PATCH] Replace a set of atomic

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Date:   Tue, 10 Nov 2020 14:58:11 +0800
From:   Yejune Deng <yejune.deng@...il.com>
To:     pizza@...ftnet.org, kvalo@...eaurora.org, davem@...emloft.net,
        kuba@...nel.org
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, yejune.deng@...il.com
Subject: [PATCH] Replace a set of atomic_add()

a set of atomic_inc() looks more readable

Signed-off-by: Yejune Deng <yejune.deng@...il.com>
---
 drivers/net/wireless/st/cw1200/bh.c  | 10 +++++-----
 drivers/net/wireless/st/cw1200/wsm.c |  8 ++++----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/st/cw1200/bh.c b/drivers/net/wireless/st/cw1200/bh.c
index 02efe84..c364a39 100644
--- a/drivers/net/wireless/st/cw1200/bh.c
+++ b/drivers/net/wireless/st/cw1200/bh.c
@@ -85,7 +85,7 @@ int cw1200_register_bh(struct cw1200_common *priv)
 
 void cw1200_unregister_bh(struct cw1200_common *priv)
 {
-	atomic_add(1, &priv->bh_term);
+	atomic_inc(&priv->bh_term);
 	wake_up(&priv->bh_wq);
 
 	flush_workqueue(priv->bh_workqueue);
@@ -107,7 +107,7 @@ void cw1200_irq_handler(struct cw1200_common *priv)
 	if (/* WARN_ON */(priv->bh_error))
 		return;
 
-	if (atomic_add_return(1, &priv->bh_rx) == 1)
+	if (atomic_inc_return(&priv->bh_rx) == 1)
 		wake_up(&priv->bh_wq);
 }
 EXPORT_SYMBOL_GPL(cw1200_irq_handler);
@@ -120,7 +120,7 @@ void cw1200_bh_wakeup(struct cw1200_common *priv)
 		return;
 	}
 
-	if (atomic_add_return(1, &priv->bh_tx) == 1)
+	if (atomic_inc_return(&priv->bh_tx) == 1)
 		wake_up(&priv->bh_wq);
 }
 
@@ -382,7 +382,7 @@ static int cw1200_bh_tx_helper(struct cw1200_common *priv,
 	BUG_ON(tx_len < sizeof(*wsm));
 	BUG_ON(__le16_to_cpu(wsm->len) != tx_len);
 
-	atomic_add(1, &priv->bh_tx);
+	atomic_inc(&priv->bh_tx);
 
 	tx_len = priv->hwbus_ops->align_size(
 		priv->hwbus_priv, tx_len);
@@ -537,7 +537,7 @@ static int cw1200_bh(void *arg)
 			pr_debug("[BH] Device resume.\n");
 			atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
 			wake_up(&priv->bh_evt_wq);
-			atomic_add(1, &priv->bh_rx);
+			atomic_inc(&priv->bh_rx);
 			goto done;
 		}
 
diff --git a/drivers/net/wireless/st/cw1200/wsm.c b/drivers/net/wireless/st/cw1200/wsm.c
index d9b6147..99624dd 100644
--- a/drivers/net/wireless/st/cw1200/wsm.c
+++ b/drivers/net/wireless/st/cw1200/wsm.c
@@ -1139,7 +1139,7 @@ static int wsm_cmd_send(struct cw1200_common *priv,
 			pr_err("Outstanding outgoing frames:  %d\n", priv->hw_bufs_used);
 
 			/* Kill BH thread to report the error to the top layer. */
-			atomic_add(1, &priv->bh_term);
+			atomic_inc(&priv->bh_term);
 			wake_up(&priv->bh_wq);
 			ret = -ETIMEDOUT;
 		}
@@ -1160,7 +1160,7 @@ static int wsm_cmd_send(struct cw1200_common *priv,
 void wsm_lock_tx(struct cw1200_common *priv)
 {
 	wsm_cmd_lock(priv);
-	if (atomic_add_return(1, &priv->tx_lock) == 1) {
+	if (atomic_inc_return(&priv->tx_lock) == 1) {
 		if (wsm_flush_tx(priv))
 			pr_debug("[WSM] TX is locked.\n");
 	}
@@ -1169,7 +1169,7 @@ void wsm_lock_tx(struct cw1200_common *priv)
 
 void wsm_lock_tx_async(struct cw1200_common *priv)
 {
-	if (atomic_add_return(1, &priv->tx_lock) == 1)
+	if (atomic_inc_return(&priv->tx_lock) == 1)
 		pr_debug("[WSM] TX is locked (async).\n");
 }
 
@@ -1223,7 +1223,7 @@ bool wsm_flush_tx(struct cw1200_common *priv)
 void wsm_unlock_tx(struct cw1200_common *priv)
 {
 	int tx_lock;
-	tx_lock = atomic_sub_return(1, &priv->tx_lock);
+	tx_lock = atomic_dec_return(&priv->tx_lock);
 	BUG_ON(tx_lock < 0);
 
 	if (tx_lock == 0) {
-- 
1.9.1