linux-kernel - [PATCH] staging: rtl8723bs: replace rtw_netdev

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Date:   Sun,  2 Aug 2020 15:42:50 +0300
From:   Ivan Safonov <insafonov@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Lukasz Szczesny <luk@...cz.pl>,
        Larry Finger <Larry.Finger@...inger.net>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Cc:     Ivan Safonov <insafonov@...il.com>
Subject: [PATCH] staging: rtl8723bs: replace rtw_netdev_priv define with inline function

The function guarantees type checking of arguments and return value.

Result of rtw_netdev_priv macro can be assigned to pointer
with incompatible type without warning. The function allow compiler
to perform this check.

Signed-off-by: Ivan Safonov <insafonov@...il.com>
---
 drivers/staging/rtl8723bs/include/osdep_service_linux.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8723bs/include/osdep_service_linux.h b/drivers/staging/rtl8723bs/include/osdep_service_linux.h
index 1710fa3eeb71..4a5bdb93e75d 100644
--- a/drivers/staging/rtl8723bs/include/osdep_service_linux.h
+++ b/drivers/staging/rtl8723bs/include/osdep_service_linux.h
@@ -129,8 +129,6 @@ static inline void rtw_netif_stop_queue(struct net_device *pnetdev)
 
 #define rtw_signal_process(pid, sig) kill_pid(find_vpid((pid)), (sig), 1)
 
-#define rtw_netdev_priv(netdev) (((struct rtw_netdev_priv_indicator *)netdev_priv(netdev))->priv)
-
 #define NDEV_FMT "%s"
 #define NDEV_ARG(ndev) ndev->name
 #define ADPT_FMT "%s"
@@ -144,6 +142,12 @@ struct rtw_netdev_priv_indicator {
 	void *priv;
 	u32 sizeof_priv;
 };
+
+static inline struct adapter *rtw_netdev_priv(struct net_device *netdev)
+{
+	return ((struct rtw_netdev_priv_indicator *)netdev_priv(netdev))->priv;
+}
+
 struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv, void *old_priv);
 extern struct net_device * rtw_alloc_etherdev(int sizeof_priv);
 
-- 
2.26.2