netfilter: xt_sctp: use WORD_ROUND macro to calculate length of multiple of 4 bytes
Use WORD_ROUND to round an int up to the next multiple of 4. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
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1 changed files with 2 additions and 1 deletions
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@ -3,6 +3,7 @@
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#include <linux/skbuff.h>
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#include <net/ip.h>
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#include <net/ipv6.h>
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#include <net/sctp/sctp.h>
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#include <linux/sctp.h>
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#include <linux/netfilter/x_tables.h>
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@ -67,7 +68,7 @@ match_packet(const struct sk_buff *skb,
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++i, offset, sch->type, htons(sch->length),
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sch->flags);
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#endif
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offset += (ntohs(sch->length) + 3) & ~3;
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offset += WORD_ROUND(ntohs(sch->length));
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pr_debug("skb->len: %d\toffset: %d\n", skb->len, offset);
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