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Diffstat (limited to 'arch/um/os-Linux/drivers/ethertap_kern.c')
-rw-r--r--arch/um/os-Linux/drivers/ethertap_kern.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/arch/um/os-Linux/drivers/ethertap_kern.c b/arch/um/os-Linux/drivers/ethertap_kern.c
index 12689141414d..542bcc58354c 100644
--- a/arch/um/os-Linux/drivers/ethertap_kern.c
+++ b/arch/um/os-Linux/drivers/ethertap_kern.c
@@ -1,16 +1,15 @@
/*
- * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
+ * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
* James Leu (jleu@mindspring.net).
+ * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Copyright (C) 2001 by various other people who didn't put their name here.
* Licensed under the GPL.
*/
#include "linux/init.h"
-#include "linux/netdevice.h"
-#include "linux/etherdevice.h"
-#include "net_kern.h"
-#include "net_user.h"
+#include <linux/netdevice.h>
#include "etap.h"
+#include "net_kern.h"
struct ethertap_init {
char *dev_name;
@@ -42,27 +41,30 @@ static int etap_read(int fd, struct sk_buff **skb, struct uml_net_private *lp)
int len;
*skb = ether_adjust_skb(*skb, ETH_HEADER_ETHERTAP);
- if(*skb == NULL) return(-ENOMEM);
+ if (*skb == NULL)
+ return -ENOMEM;
len = net_recvfrom(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + 2 * ETH_HEADER_ETHERTAP);
- if(len <= 0) return(len);
+ if (len <= 0)
+ return len;
skb_pull(*skb, 2);
len -= 2;
- return(len);
+ return len;
}
static int etap_write(int fd, struct sk_buff **skb, struct uml_net_private *lp)
{
- if(skb_headroom(*skb) < 2){
+ if (skb_headroom(*skb) < 2) {
struct sk_buff *skb2;
skb2 = skb_realloc_headroom(*skb, 2);
dev_kfree_skb(*skb);
- if (skb2 == NULL) return(-ENOMEM);
+ if (skb2 == NULL)
+ return -ENOMEM;
*skb = skb2;
}
skb_push(*skb, 2);
- return(net_send(fd, (*skb)->data, (*skb)->len));
+ return net_send(fd, (*skb)->data, (*skb)->len);
}
const struct net_kern_info ethertap_kern_info = {
@@ -79,15 +81,15 @@ int ethertap_setup(char *str, char **mac_out, void *data)
*init = ((struct ethertap_init)
{ .dev_name = NULL,
.gate_addr = NULL });
- if(tap_setup_common(str, "ethertap", &init->dev_name, mac_out,
+ if (tap_setup_common(str, "ethertap", &init->dev_name, mac_out,
&init->gate_addr))
- return(0);
- if(init->dev_name == NULL){
- printk("ethertap_setup : Missing tap device name\n");
- return(0);
+ return 0;
+ if (init->dev_name == NULL) {
+ printk(KERN_ERR "ethertap_setup : Missing tap device name\n");
+ return 0;
}
- return(1);
+ return 1;
}
static struct transport ethertap_transport = {