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| author | Joonwoo Park <joonwpark81@gmail.com> | 2008-03-31 21:02:47 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-31 21:02:47 -0700 |
| commit | f83f1768f833cb45bc93429fdc552252a4f55ac3 (patch) | |
| tree | 15de7d2df2fc3a35e0a6b933bb37aefcba2cc3ef /include/net | |
| parent | b50660f1fe4ebd6129064e4fba0bd882b60c2425 (diff) | |
| download | linux-stable-f83f1768f833cb45bc93429fdc552252a4f55ac3.tar.gz linux-stable-f83f1768f833cb45bc93429fdc552252a4f55ac3.tar.bz2 linux-stable-f83f1768f833cb45bc93429fdc552252a4f55ac3.zip | |
[LLC]: skb allocation size for responses
Allocate the skb for llc responses with the received packet size by
using the size adjustable llc_frame_alloc.
Don't allocate useless extra payload.
Cleanup magic numbers.
So, this fixes oops.
Reported by Jim Westfall:
kernel: skb_over_panic: text:c0541fc7 len:1000 put:997 head:c166ac00 data:c166ac2f tail:0xc166b017 end:0xc166ac80 dev:eth0
kernel: ------------[ cut here ]------------
kernel: kernel BUG at net/core/skbuff.c:95!
Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/llc_pdu.h | 4 | ||||
| -rw-r--r-- | include/net/llc_sap.h | 7 |
2 files changed, 7 insertions, 4 deletions
diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h index 4a8f58b17e43..75b8e2968c9b 100644 --- a/include/net/llc_pdu.h +++ b/include/net/llc_pdu.h @@ -381,7 +381,7 @@ static inline void llc_pdu_init_as_xid_cmd(struct sk_buff *skb, xid_info->fmt_id = LLC_XID_FMT_ID; /* 0x81 */ xid_info->type = svcs_supported; xid_info->rw = rx_window << 1; /* size of receive window */ - skb_put(skb, 3); + skb_put(skb, sizeof(struct llc_xid_info)); } /** @@ -406,7 +406,7 @@ static inline void llc_pdu_init_as_xid_rsp(struct sk_buff *skb, xid_info->fmt_id = LLC_XID_FMT_ID; xid_info->type = svcs_supported; xid_info->rw = rx_window << 1; - skb_put(skb, 3); + skb_put(skb, sizeof(struct llc_xid_info)); } /* LLC Type 2 FRMR response information field format */ diff --git a/include/net/llc_sap.h b/include/net/llc_sap.h index 2c56dbece729..ed25bec2f648 100644 --- a/include/net/llc_sap.h +++ b/include/net/llc_sap.h @@ -1,5 +1,8 @@ #ifndef LLC_SAP_H #define LLC_SAP_H + +#include <asm/types.h> + /* * Copyright (c) 1997 by Procom Technology,Inc. * 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br> @@ -19,8 +22,8 @@ struct sock; extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb); extern void llc_save_primitive(struct sock *sk, struct sk_buff* skb, unsigned char prim); -extern struct sk_buff *llc_alloc_frame(struct sock *sk, - struct net_device *dev); +extern struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev, + u8 type, u32 data_size); extern void llc_build_and_send_test_pkt(struct llc_sap *sap, struct sk_buff *skb, |