linux-kernel - [PATCH v2] staging: r8188eu: use skb_put_data instead of skb

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Date:   Sun, 1 Sep 2019 22:53:01 +0300
From:   Ivan Safonov <insafonov@...il.com>
To:     Larry Finger <Larry.Finger@...inger.net>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Michael Straube <straube.linux@...il.com>,
        Sanjana Sanikommu <sanjana99reddy99@...il.com>,
        Vatsala Narang <vatsalanarang@...il.com>,
        Colin Ian King <colin.king@...onical.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] staging: r8188eu: use skb_put_data instead of
 skb_put/memcpy pair

skb_put_data is shorter and clear.

Signed-off-by: Ivan Safonov <insafonov@...il.com>
---
Changes in v2:
  - add "staging: " in message subject;
  - all code lines now have no breaks in the middle of a sentence.

drivers/staging/rtl8188eu/core/rtw_recv.c        | 6 +-----
 drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c | 3 +--
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index 620da6c003d8..d4278361e002 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -1373,11 +1373,7 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter,
 		/* append  to first fragment frame's tail (if privacy frame, pull the ICV) */
 		skb_trim(prframe->pkt, prframe->pkt->len - prframe->attrib.icv_len);
 
-		/* memcpy */
-		memcpy(skb_tail_pointer(prframe->pkt), pnfhdr->pkt->data,
-		       pnfhdr->pkt->len);
-
-		skb_put(prframe->pkt, pnfhdr->pkt->len);
+		skb_put_data(prframe->pkt, pnfhdr->pkt->data, pnfhdr->pkt->len);
 
 		prframe->attrib.icv_len = pnfhdr->attrib.icv_len;
 		plist = plist->next;
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
index eedf2cd831d1..aaab0d577453 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
@@ -122,8 +122,7 @@ static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb)
 			precvframe->pkt = pkt_copy;
 			skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
 			skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
-			memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
-			skb_put(precvframe->pkt, skb_len);
+			skb_put_data(pkt_copy, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
 		} else {
 			DBG_88E("%s: alloc_skb fail , drop frag frame\n",
 				__func__);
-- 
2.21.0