linux-kernel - [PATCH v2 2/3] Staging: ks7010: hostif: Convert SME queue macros to real functions.

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Date:   Mon, 19 Feb 2018 22:35:37 -0800
From:   Quytelda Kahja <quytelda@...alin.org>
To:     gregkh@...uxfoundation.org, wsa@...-dreams.de
Cc:     driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, Quytelda Kahja <quytelda@...alin.org>
Subject: [PATCH v2 2/3] Staging: ks7010: hostif: Convert SME queue macros to real functions.

Convert the unsafe macros into inline functions.

Signed-off-by: Quytelda Kahja <quytelda@...alin.org>
---
 drivers/staging/ks7010/ks_hostif.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/ks7010/ks_hostif.c b/drivers/staging/ks7010/ks_hostif.c
index 975dbbb3abd0..f554477fe6bc 100644
--- a/drivers/staging/ks7010/ks_hostif.c
+++ b/drivers/staging/ks7010/ks_hostif.c
@@ -21,13 +21,22 @@
 /* Include Wireless Extension definition and check version */
 #include <net/iw_handler.h>	/* New driver API */
 
-/* macro */
-#define inc_smeqhead(priv) \
-	(priv->sme_i.qhead = (priv->sme_i.qhead + 1) % SME_EVENT_BUFF_SIZE)
-#define inc_smeqtail(priv) \
-	(priv->sme_i.qtail = (priv->sme_i.qtail + 1) % SME_EVENT_BUFF_SIZE)
-#define cnt_smeqbody(priv) \
-	(((priv->sme_i.qtail + SME_EVENT_BUFF_SIZE) - (priv->sme_i.qhead)) % SME_EVENT_BUFF_SIZE)
+static inline void inc_smeqhead(struct ks_wlan_private *priv)
+{
+	priv->sme_i.qhead = (priv->sme_i.qhead + 1) % SME_EVENT_BUFF_SIZE;
+}
+
+static inline void inc_smeqtail(struct ks_wlan_private *priv)
+{
+	priv->sme_i.qtail = (priv->sme_i.qtail + 1) % SME_EVENT_BUFF_SIZE;
+}
+
+static inline unsigned int cnt_smeqbody(struct ks_wlan_private *priv)
+{
+	unsigned int sme_cnt = priv->sme_i.qtail - priv->sme_i.qhead;
+
+	return (sme_cnt + SME_EVENT_BUFF_SIZE) % SME_EVENT_BUFF_SIZE;
+}
 
 #define KS_WLAN_MEM_FLAG (GFP_ATOMIC)
 
-- 
2.16.2