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From:   Ivan Safonov <insafonov@gmail.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Hans de Goede <hdegoede@redhat.com>,
        Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
        Nishka Dasgupta <nishkadg.linux@gmail.com>,
        Lukasz Szczesny <luk@wybcz.pl>, R Veera Kumar <vkor@vkten.in>,
        Hariprasad Kelam <hariprasad.kelam@gmail.com>,
        YueHaibing <yuehaibing@huawei.com>,
        Shobhit Kukreti <shobhitkukreti@gmail.com>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        Pascal Terjan <pterjan@google.com>, devel@driverdev.osuosl.org,
        linux-kernel@vger.kernel.org, Ivan Safonov <insafonov@gmail.com>
Subject: [PATCH v2] staging:r8723bs: remove wrappers around skb_clone() and remove unnecessary in_interrupt() call
Date:   Sun, 31 May 2020 21:17:52 +0300
Message-Id: <20200531181751.41830-1-insafonov@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Wrappers around skb_clone() do not simplify the driver code.

The skb_clone() is always called from an interrupt handler,
so use GFP_ATOMIC allocation only.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
---
Changes in v2:
  - in_interrupt() removal has been described.

 drivers/staging/rtl8723bs/include/osdep_service.h | 3 ---
 drivers/staging/rtl8723bs/os_dep/osdep_service.c  | 5 -----
 drivers/staging/rtl8723bs/os_dep/recv_linux.c     | 2 +-
 3 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/staging/rtl8723bs/include/osdep_service.h b/drivers/staging/rtl8723bs/include/osdep_service.h
index 5f681899bbec..be34e279670b 100644
--- a/drivers/staging/rtl8723bs/include/osdep_service.h
+++ b/drivers/staging/rtl8723bs/include/osdep_service.h
@@ -94,7 +94,6 @@ void _kfree(u8 *pbuf, u32 sz);
 
 struct sk_buff *_rtw_skb_alloc(u32 sz);
 struct sk_buff *_rtw_skb_copy(const struct sk_buff *skb);
-struct sk_buff *_rtw_skb_clone(struct sk_buff *skb);
 int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb);
 
 #define rtw_malloc(sz)			_rtw_malloc((sz))
@@ -103,9 +102,7 @@ int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb);
 #define rtw_skb_alloc(size) _rtw_skb_alloc((size))
 #define rtw_skb_alloc_f(size, mstat_f)	_rtw_skb_alloc((size))
 #define rtw_skb_copy(skb)	_rtw_skb_copy((skb))
-#define rtw_skb_clone(skb)	_rtw_skb_clone((skb))
 #define rtw_skb_copy_f(skb, mstat_f)	_rtw_skb_copy((skb))
-#define rtw_skb_clone_f(skb, mstat_f)	_rtw_skb_clone((skb))
 #define rtw_netif_rx(ndev, skb) _rtw_netif_rx(ndev, skb)
 
 extern void _rtw_init_queue(struct __queue	*pqueue);
diff --git a/drivers/staging/rtl8723bs/os_dep/osdep_service.c b/drivers/staging/rtl8723bs/os_dep/osdep_service.c
index 4238209ec175..6d443197a0cf 100644
--- a/drivers/staging/rtl8723bs/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8723bs/os_dep/osdep_service.c
@@ -47,11 +47,6 @@ inline struct sk_buff *_rtw_skb_copy(const struct sk_buff *skb)
 	return skb_copy(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
 }
 
-inline struct sk_buff *_rtw_skb_clone(struct sk_buff *skb)
-{
-	return skb_clone(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
-}
-
 inline int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb)
 {
 	skb->dev = ndev;
diff --git a/drivers/staging/rtl8723bs/os_dep/recv_linux.c b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
index eb4d1c3008fe..b2a1bbb30df6 100644
--- a/drivers/staging/rtl8723bs/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
@@ -110,7 +110,7 @@ void rtw_os_recv_indicate_pkt(struct adapter *padapter, _pkt *pkt, struct rx_pkt
 			if (memcmp(pattrib->dst, myid(&padapter->eeprompriv), ETH_ALEN)) {
 				if (bmcast) {
 					psta = rtw_get_bcmc_stainfo(padapter);
-					pskb2 = rtw_skb_clone(pkt);
+					pskb2 = skb_clone(pkt, GFP_ATOMIC);
 				} else {
 					psta = rtw_get_stainfo(pstapriv, pattrib->dst);
 				}
-- 
2.26.2