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author | David S. Miller <davem@davemloft.net> | 2008-04-03 01:35:23 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2008-04-03 01:35:23 -0400 |
commit | e1ec1b8ccdf0df6000faa8c2d985ca5f94157e5a (patch) | |
tree | 4e1ca325dde22f1ac21c9da0be509e87e922e604 /net/llc/llc_sap.c | |
parent | c0f39322c335412339dec16ebfd2a05ceba5ebcf (diff) | |
parent | 802fb176d8c635ae42da31b80841c26e8c7338a0 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/s2io.c
Diffstat (limited to 'net/llc/llc_sap.c')
-rw-r--r-- | net/llc/llc_sap.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c index 2525165e2e8f..e2ddde755019 100644 --- a/net/llc/llc_sap.c +++ b/net/llc/llc_sap.c | |||
@@ -24,20 +24,41 @@ | |||
24 | #include <net/tcp_states.h> | 24 | #include <net/tcp_states.h> |
25 | #include <linux/llc.h> | 25 | #include <linux/llc.h> |
26 | 26 | ||
27 | static int llc_mac_header_len(unsigned short devtype) | ||
28 | { | ||
29 | switch (devtype) { | ||
30 | case ARPHRD_ETHER: | ||
31 | case ARPHRD_LOOPBACK: | ||
32 | return sizeof(struct ethhdr); | ||
33 | #ifdef CONFIG_TR | ||
34 | case ARPHRD_IEEE802_TR: | ||
35 | return sizeof(struct trh_hdr); | ||
36 | #endif | ||
37 | } | ||
38 | return 0; | ||
39 | } | ||
40 | |||
27 | /** | 41 | /** |
28 | * llc_alloc_frame - allocates sk_buff for frame | 42 | * llc_alloc_frame - allocates sk_buff for frame |
29 | * @dev: network device this skb will be sent over | 43 | * @dev: network device this skb will be sent over |
44 | * @type: pdu type to allocate | ||
45 | * @data_size: data size to allocate | ||
30 | * | 46 | * |
31 | * Allocates an sk_buff for frame and initializes sk_buff fields. | 47 | * Allocates an sk_buff for frame and initializes sk_buff fields. |
32 | * Returns allocated skb or %NULL when out of memory. | 48 | * Returns allocated skb or %NULL when out of memory. |
33 | */ | 49 | */ |
34 | struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev) | 50 | struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev, |
51 | u8 type, u32 data_size) | ||
35 | { | 52 | { |
36 | struct sk_buff *skb = alloc_skb(128, GFP_ATOMIC); | 53 | int hlen = type == LLC_PDU_TYPE_U ? 3 : 4; |
54 | struct sk_buff *skb; | ||
55 | |||
56 | hlen += llc_mac_header_len(dev->type); | ||
57 | skb = alloc_skb(hlen + data_size, GFP_ATOMIC); | ||
37 | 58 | ||
38 | if (skb) { | 59 | if (skb) { |
39 | skb_reset_mac_header(skb); | 60 | skb_reset_mac_header(skb); |
40 | skb_reserve(skb, 50); | 61 | skb_reserve(skb, hlen); |
41 | skb_reset_network_header(skb); | 62 | skb_reset_network_header(skb); |
42 | skb_reset_transport_header(skb); | 63 | skb_reset_transport_header(skb); |
43 | skb->protocol = htons(ETH_P_802_2); | 64 | skb->protocol = htons(ETH_P_802_2); |