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authorJohannes Berg <johannes@sipsolutions.net>2008-05-12 20:48:31 -0700
committerDavid S. Miller <davem@davemloft.net>2008-05-12 20:48:31 -0700
commitf5184d267c1aedb9b7a8cc44e08ff6b8d382c3b5 (patch)
tree5ccce7558f9e1e53e5b189d6e2fe62a667988ac8 /net/ipv4
parent8388e3da34edb141362bb42811ee487dfec15525 (diff)
net: Allow netdevices to specify needed head/tailroom
This patch adds needed_headroom/needed_tailroom members to struct net_device and updates many places that allocate sbks to use them. Not all of them can be converted though, and I'm sure I missed some (I mostly grepped for LL_RESERVED_SPACE) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/arp.c2
-rw-r--r--net/ipv4/igmp.c4
-rw-r--r--net/ipv4/ipconfig.c6
-rw-r--r--net/ipv4/raw.c10
4 files changed, 10 insertions, 12 deletions
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 68b72a7a1806..418862f1bf22 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -570,7 +570,7 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
* Allocate a buffer
*/
- skb = alloc_skb(arp_hdr_len(dev) + LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+ skb = alloc_skb(arp_hdr_len(dev) + LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
if (skb == NULL)
return NULL;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 6250f4239b61..2769dc4a4c84 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -292,7 +292,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
struct iphdr *pip;
struct igmpv3_report *pig;
- skb = alloc_skb(size + LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+ skb = alloc_skb(size + LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
if (skb == NULL)
return NULL;
@@ -653,7 +653,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
return -1;
}
- skb=alloc_skb(IGMP_SIZE+LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+ skb=alloc_skb(IGMP_SIZE+LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
if (skb == NULL) {
ip_rt_put(rt);
return -1;
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 89dee4346f60..ed45037ce9be 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -710,14 +710,14 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
struct net_device *dev = d->dev;
struct sk_buff *skb;
struct bootp_pkt *b;
- int hh_len = LL_RESERVED_SPACE(dev);
struct iphdr *h;
/* Allocate packet */
- skb = alloc_skb(sizeof(struct bootp_pkt) + hh_len + 15, GFP_KERNEL);
+ skb = alloc_skb(sizeof(struct bootp_pkt) + LL_ALLOCATED_SPACE(dev) + 15,
+ GFP_KERNEL);
if (!skb)
return;
- skb_reserve(skb, hh_len);
+ skb_reserve(skb, LL_RESERVED_SPACE(dev));
b = (struct bootp_pkt *) skb_put(skb, sizeof(struct bootp_pkt));
memset(b, 0, sizeof(struct bootp_pkt));
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 11d7f753a820..fead049daf43 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -322,7 +322,6 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
unsigned int flags)
{
struct inet_sock *inet = inet_sk(sk);
- int hh_len;
struct iphdr *iph;
struct sk_buff *skb;
unsigned int iphlen;
@@ -336,13 +335,12 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
if (flags&MSG_PROBE)
goto out;
- hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
- skb = sock_alloc_send_skb(sk, length+hh_len+15,
- flags&MSG_DONTWAIT, &err);
+ skb = sock_alloc_send_skb(sk,
+ length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15,
+ flags & MSG_DONTWAIT, &err);
if (skb == NULL)
goto error;
- skb_reserve(skb, hh_len);
+ skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev));
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;

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