net: manual clean code which call skb_put_[data:zero]

Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 4 insertions, 8 deletions

diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
index 4534326e20ac..11ba6e3eea22 100644
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -426,7 +426,6 @@ static int cfhsi_rx_desc(struct cfhsi_desc *desc, struct cfhsi *cfhsi)
         /* Check for embedded CAIF frame. */
         if (desc->offset) {
                 struct sk_buff *skb;
-                u8 *dst = NULL;
                 int len = 0;
                 pfrm = ((u8 *)desc) + desc->offset;
 
@@ -454,7 +453,7 @@ static int cfhsi_rx_desc(struct cfhsi_desc *desc, struct cfhsi *cfhsi)
                 }
                 caif_assert(skb != NULL);
 
-                dst = skb_put_data(skb, pfrm, len);
+                skb_put_data(skb, pfrm, len);
 
                 skb->protocol = htons(ETH_P_CAIF);
                 skb_reset_mac_header(skb);
@@ -555,7 +554,6 @@ static int cfhsi_rx_pld(struct cfhsi_desc *desc, struct cfhsi *cfhsi)
         /* Parse payload. */
         while (nfrms < CFHSI_MAX_PKTS && *plen) {
                 struct sk_buff *skb;
-                u8 *dst = NULL;
                 u8 *pcffrm = NULL;
                 int len;
 
@@ -584,7 +582,7 @@ static int cfhsi_rx_pld(struct cfhsi_desc *desc, struct cfhsi *cfhsi)
                 }
                 caif_assert(skb != NULL);
 
-                dst = skb_put_data(skb, pcffrm, len);
+                skb_put_data(skb, pcffrm, len);
 
                 skb->protocol = htons(ETH_P_CAIF);
                 skb_reset_mac_header(skb);
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 5c57be2082ba..709838e4c062 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -171,7 +171,6 @@ static void ldisc_receive(struct tty_struct *tty, const u8 *data,
         struct sk_buff *skb = NULL;
         struct ser_device *ser;
         int ret;
-        u8 *p;
 
         ser = tty->disc_data;
 
@@ -198,7 +197,7 @@ static void ldisc_receive(struct tty_struct *tty, const u8 *data,
         skb = netdev_alloc_skb(ser->dev, count+1);
         if (skb == NULL)
                 return;
-        p = skb_put_data(skb, data, count);
+        skb_put_data(skb, data, count);
 
         skb->protocol = htons(ETH_P_CAIF);
         skb_reset_mac_header(skb);
diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c
index 24a5f5ca2037..207cb8423de0 100644
--- a/drivers/net/caif/caif_spi.c
+++ b/drivers/net/caif/caif_spi.c
@@ -526,7 +526,6 @@ int cfspi_rxfrm(struct cfspi *cfspi, u8 *buf, size_t len)
                 struct sk_buff *skb = NULL;
                 int spad = 0;
                 int epad = 0;
-                u8 *dst = NULL;
                 int pkt_len = 0;
 
                 /*
@@ -548,7 +547,7 @@ int cfspi_rxfrm(struct cfspi *cfspi, u8 *buf, size_t len)
                 skb = netdev_alloc_skb(cfspi->ndev, pkt_len + 1);
                 caif_assert(skb != NULL);
 
-                dst = skb_put_data(skb, src, pkt_len);
+                skb_put_data(skb, src, pkt_len);
                 src += pkt_len;
 
                 skb->protocol = htons(ETH_P_CAIF);