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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-11-10 11:22:32 -0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-02 21:21:55 -0800 |
| commit | 9b42078ed6edfe04e9dc9a59b946ad912aeef717 (patch) | |
| tree | d3d20e17aa85e1bb16b99397f98f151d197b3177 /include/linux | |
| parent | 89e7e57778ecd8744fee97491300f05a9fb1388a (diff) | |
| download | linux-9b42078ed6edfe04e9dc9a59b946ad912aeef717.tar.gz linux-9b42078ed6edfe04e9dc9a59b946ad912aeef717.tar.bz2 linux-9b42078ed6edfe04e9dc9a59b946ad912aeef717.zip | |
[DCCP]: Combine allocating & zeroing header space on skb
This is a code simplification:
it combines three often recurring operations into one inline function,
* allocate `len' bytes header space in skb
* fill these `len' bytes with zeroes
* cast the start of this header space as dccp_hdr
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dccp.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/dccp.h b/include/linux/dccp.h index 53553c99cad6..90d04ffddae8 100644 --- a/include/linux/dccp.h +++ b/include/linux/dccp.h @@ -256,6 +256,13 @@ static inline struct dccp_hdr *dccp_hdr(const struct sk_buff *skb) return (struct dccp_hdr *)skb->h.raw; } +static inline struct dccp_hdr *dccp_zeroed_hdr(struct sk_buff *skb, int headlen) +{ + skb->h.raw = skb_push(skb, headlen); + memset(skb->h.raw, 0, headlen); + return dccp_hdr(skb); +} + static inline struct dccp_hdr_ext *dccp_hdrx(const struct sk_buff *skb) { return (struct dccp_hdr_ext *)(skb->h.raw + sizeof(struct dccp_hdr)); |