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Commit 0eec32ff authored by Changli Gao's avatar Changli Gao Committed by David S. Miller
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net_sched: act_csum: coding style cleanup

parent 7abac686
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+38 −39
Original line number Original line Diff line number Diff line
@@ -73,7 +73,8 @@ static int tcf_csum_init(struct nlattr *nla, struct nlattr *est,


	pc = tcf_hash_check(parm->index, a, bind, &csum_hash_info);
	pc = tcf_hash_check(parm->index, a, bind, &csum_hash_info);
	if (!pc) {
	if (!pc) {
		pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind, &csum_idx_gen, &csum_hash_info);
		pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
				     &csum_idx_gen, &csum_hash_info);
		if (IS_ERR(pc))
		if (IS_ERR(pc))
			return PTR_ERR(pc);
			return PTR_ERR(pc);
		p = to_tcf_csum(pc);
		p = to_tcf_csum(pc);
@@ -230,8 +231,9 @@ static int tcf_csum_ipv4_udp(struct sk_buff *skb, struct iphdr *iph,
	struct udphdr *udph;
	struct udphdr *udph;
	u16 ul;
	u16 ul;


	/* Support both UDP and UDPLITE checksum algorithms,
	/*
	 * Don't use udph->len to get the real length without any protocol check,
	 * Support both UDP and UDPLITE checksum algorithms, Don't use
	 * udph->len to get the real length without any protocol check,
	 * UDPLITE uses udph->len for another thing,
	 * UDPLITE uses udph->len for another thing,
	 * Use iph->tot_len, or just ipl.
	 * Use iph->tot_len, or just ipl.
	 */
	 */
@@ -249,10 +251,8 @@ static int tcf_csum_ipv4_udp(struct sk_buff *skb, struct iphdr *iph,
		if (udplite) {
		if (udplite) {
			if (ul == 0)
			if (ul == 0)
				skb->csum = csum_partial(udph, ipl - ihl, 0);
				skb->csum = csum_partial(udph, ipl - ihl, 0);

			else if ((ul >= sizeof(*udph)) && (ul <= ipl - ihl))
			else if ((ul >= sizeof(*udph)) && (ul <= ipl - ihl))
				skb->csum = csum_partial(udph, ul, 0);
				skb->csum = csum_partial(udph, ul, 0);

			else
			else
				goto ignore_obscure_skb;
				goto ignore_obscure_skb;
		} else {
		} else {
@@ -282,8 +282,9 @@ static int tcf_csum_ipv6_udp(struct sk_buff *skb, struct ipv6hdr *ip6h,
	struct udphdr *udph;
	struct udphdr *udph;
	u16 ul;
	u16 ul;


	/* Support both UDP and UDPLITE checksum algorithms,
	/*
	 * Don't use udph->len to get the real length without any protocol check,
	 * Support both UDP and UDPLITE checksum algorithms, Don't use
	 * udph->len to get the real length without any protocol check,
	 * UDPLITE uses udph->len for another thing,
	 * UDPLITE uses udph->len for another thing,
	 * Use ip6h->payload_len + sizeof(*ip6h) ... , or just ipl.
	 * Use ip6h->payload_len + sizeof(*ip6h) ... , or just ipl.
	 */
	 */
@@ -340,32 +341,32 @@ static int tcf_csum_ipv4(struct sk_buff *skb, u32 update_flags)
	switch (iph->frag_off & htons(IP_OFFSET) ? 0 : iph->protocol) {
	switch (iph->frag_off & htons(IP_OFFSET) ? 0 : iph->protocol) {
	case IPPROTO_ICMP:
	case IPPROTO_ICMP:
		if (update_flags & TCA_CSUM_UPDATE_FLAG_ICMP)
		if (update_flags & TCA_CSUM_UPDATE_FLAG_ICMP)
			if (!tcf_csum_ipv4_icmp(skb,
			if (!tcf_csum_ipv4_icmp(skb, iph->ihl * 4,
						iph->ihl * 4, ntohs(iph->tot_len)))
						ntohs(iph->tot_len)))
				goto fail;
				goto fail;
		break;
		break;
	case IPPROTO_IGMP:
	case IPPROTO_IGMP:
		if (update_flags & TCA_CSUM_UPDATE_FLAG_IGMP)
		if (update_flags & TCA_CSUM_UPDATE_FLAG_IGMP)
			if (!tcf_csum_ipv4_igmp(skb,
			if (!tcf_csum_ipv4_igmp(skb, iph->ihl * 4,
						iph->ihl * 4, ntohs(iph->tot_len)))
						ntohs(iph->tot_len)))
				goto fail;
				goto fail;
		break;
		break;
	case IPPROTO_TCP:
	case IPPROTO_TCP:
		if (update_flags & TCA_CSUM_UPDATE_FLAG_TCP)
		if (update_flags & TCA_CSUM_UPDATE_FLAG_TCP)
			if (!tcf_csum_ipv4_tcp(skb, iph,
			if (!tcf_csum_ipv4_tcp(skb, iph, iph->ihl * 4,
					       iph->ihl * 4, ntohs(iph->tot_len)))
					       ntohs(iph->tot_len)))
				goto fail;
				goto fail;
		break;
		break;
	case IPPROTO_UDP:
	case IPPROTO_UDP:
		if (update_flags & TCA_CSUM_UPDATE_FLAG_UDP)
		if (update_flags & TCA_CSUM_UPDATE_FLAG_UDP)
			if (!tcf_csum_ipv4_udp(skb, iph,
			if (!tcf_csum_ipv4_udp(skb, iph, iph->ihl * 4,
					       iph->ihl * 4, ntohs(iph->tot_len), 0))
					       ntohs(iph->tot_len), 0))
				goto fail;
				goto fail;
		break;
		break;
	case IPPROTO_UDPLITE:
	case IPPROTO_UDPLITE:
		if (update_flags & TCA_CSUM_UPDATE_FLAG_UDPLITE)
		if (update_flags & TCA_CSUM_UPDATE_FLAG_UDPLITE)
			if (!tcf_csum_ipv4_udp(skb, iph,
			if (!tcf_csum_ipv4_udp(skb, iph, iph->ihl * 4,
					       iph->ihl * 4, ntohs(iph->tot_len), 1))
					       ntohs(iph->tot_len), 1))
				goto fail;
				goto fail;
		break;
		break;
	}
	}
@@ -395,8 +396,7 @@ static int tcf_csum_ipv6_hopopts(struct ipv6_opt_hdr *ip6xh,
	len = ixhl - off;
	len = ixhl - off;


	while (len > 1) {
	while (len > 1) {
		switch (xh[off])
		switch (xh[off]) {
		{
		case IPV6_TLV_PAD0:
		case IPV6_TLV_PAD0:
			optlen = 1;
			optlen = 1;
			break;
			break;
@@ -476,14 +476,14 @@ static int tcf_csum_ipv6(struct sk_buff *skb, u32 update_flags)
			goto done;
			goto done;
		case IPPROTO_UDP:
		case IPPROTO_UDP:
			if (update_flags & TCA_CSUM_UPDATE_FLAG_UDP)
			if (update_flags & TCA_CSUM_UPDATE_FLAG_UDP)
				if (!tcf_csum_ipv6_udp(skb, ip6h,
				if (!tcf_csum_ipv6_udp(skb, ip6h, hl,
						       hl, pl + sizeof(*ip6h), 0))
						       pl + sizeof(*ip6h), 0))
					goto fail;
					goto fail;
			goto done;
			goto done;
		case IPPROTO_UDPLITE:
		case IPPROTO_UDPLITE:
			if (update_flags & TCA_CSUM_UPDATE_FLAG_UDPLITE)
			if (update_flags & TCA_CSUM_UPDATE_FLAG_UDPLITE)
				if (!tcf_csum_ipv6_udp(skb, ip6h,
				if (!tcf_csum_ipv6_udp(skb, ip6h, hl,
						       hl, pl + sizeof(*ip6h), 1))
						       pl + sizeof(*ip6h), 1))
					goto fail;
					goto fail;
			goto done;
			goto done;
		default:
		default:
@@ -544,7 +544,6 @@ static int tcf_csum_dump(struct sk_buff *skb,
	struct tcf_csum *p = a->priv;
	struct tcf_csum *p = a->priv;
	struct tc_csum opt = {
	struct tc_csum opt = {
		.update_flags = p->update_flags,
		.update_flags = p->update_flags,

		.index   = p->tcf_index,
		.index   = p->tcf_index,
		.action  = p->tcf_action,
		.action  = p->tcf_action,
		.refcnt  = p->tcf_refcnt - ref,
		.refcnt  = p->tcf_refcnt - ref,