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Commit 4f3608b7 authored by Al Viro's avatar Al Viro Committed by David S. Miller
Browse files

[TCP] net/ipv4/tcp_input.c: trivial annotations

parent 39dccd9d
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+7 −7
Original line number Original line Diff line number Diff line
@@ -2629,7 +2629,7 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx,
	  			switch(opcode) {
	  			switch(opcode) {
				case TCPOPT_MSS:
				case TCPOPT_MSS:
					if(opsize==TCPOLEN_MSS && th->syn && !estab) {
					if(opsize==TCPOLEN_MSS && th->syn && !estab) {
						u16 in_mss = ntohs(get_unaligned((__u16 *)ptr));
						u16 in_mss = ntohs(get_unaligned((__be16 *)ptr));
						if (in_mss) {
						if (in_mss) {
							if (opt_rx->user_mss && opt_rx->user_mss < in_mss)
							if (opt_rx->user_mss && opt_rx->user_mss < in_mss)
								in_mss = opt_rx->user_mss;
								in_mss = opt_rx->user_mss;
@@ -2657,8 +2657,8 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx,
						if ((estab && opt_rx->tstamp_ok) ||
						if ((estab && opt_rx->tstamp_ok) ||
						    (!estab && sysctl_tcp_timestamps)) {
						    (!estab && sysctl_tcp_timestamps)) {
							opt_rx->saw_tstamp = 1;
							opt_rx->saw_tstamp = 1;
							opt_rx->rcv_tsval = ntohl(get_unaligned((__u32 *)ptr));
							opt_rx->rcv_tsval = ntohl(get_unaligned((__be32 *)ptr));
							opt_rx->rcv_tsecr = ntohl(get_unaligned((__u32 *)(ptr+4)));
							opt_rx->rcv_tsecr = ntohl(get_unaligned((__be32 *)(ptr+4)));
						}
						}
					}
					}
					break;
					break;
@@ -2695,8 +2695,8 @@ static int tcp_fast_parse_options(struct sk_buff *skb, struct tcphdr *th,
		return 0;
		return 0;
	} else if (tp->rx_opt.tstamp_ok &&
	} else if (tp->rx_opt.tstamp_ok &&
		   th->doff == (sizeof(struct tcphdr)>>2)+(TCPOLEN_TSTAMP_ALIGNED>>2)) {
		   th->doff == (sizeof(struct tcphdr)>>2)+(TCPOLEN_TSTAMP_ALIGNED>>2)) {
		__u32 *ptr = (__u32 *)(th + 1);
		__be32 *ptr = (__be32 *)(th + 1);
		if (*ptr == ntohl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
		if (*ptr == htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
				  | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
				  | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
			tp->rx_opt.saw_tstamp = 1;
			tp->rx_opt.saw_tstamp = 1;
			++ptr;
			++ptr;
@@ -3911,10 +3911,10 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,


		/* Check timestamp */
		/* Check timestamp */
		if (tcp_header_len == sizeof(struct tcphdr) + TCPOLEN_TSTAMP_ALIGNED) {
		if (tcp_header_len == sizeof(struct tcphdr) + TCPOLEN_TSTAMP_ALIGNED) {
			__u32 *ptr = (__u32 *)(th + 1);
			__be32 *ptr = (__be32 *)(th + 1);


			/* No? Slow path! */
			/* No? Slow path! */
			if (*ptr != ntohl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
			if (*ptr != htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
					  | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP))
					  | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP))
				goto slow_path;
				goto slow_path;