Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux

[cascardo/linux.git] / net / dccp / options.c

diff --git a/net/dccp/options.c b/net/dccp/options.c
index 07395f8..bfda087 100644 (file)
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -299,9 +299,8 @@ static inline u8 dccp_ndp_len(const u64 ndp)
        return likely(ndp <= USHRT_MAX) ? 2 : (ndp <= UINT_MAX ? 4 : 6);
 }
 
-int dccp_insert_option(struct sock *sk, struct sk_buff *skb,
-                       const unsigned char option,
-                       const void *value, const unsigned char len)
+int dccp_insert_option(struct sk_buff *skb, const unsigned char option,
+                      const void *value, const unsigned char len)
 {
        unsigned char *to;
 
@@ -354,8 +353,7 @@ static inline int dccp_elapsed_time_len(const u32 elapsed_time)
        return elapsed_time == 0 ? 0 : elapsed_time <= 0xFFFF ? 2 : 4;
 }
 
-int dccp_insert_option_elapsed_time(struct sock *sk, struct sk_buff *skb,
-                                   u32 elapsed_time)
+int dccp_insert_option_elapsed_time(struct sk_buff *skb, u32 elapsed_time)
 {
        const int elapsed_time_len = dccp_elapsed_time_len(elapsed_time);
        const int len = 2 + elapsed_time_len;
@@ -386,13 +384,13 @@ int dccp_insert_option_elapsed_time(struct sock *sk, struct sk_buff *skb,
 
 EXPORT_SYMBOL_GPL(dccp_insert_option_elapsed_time);
 
-int dccp_insert_option_timestamp(struct sock *sk, struct sk_buff *skb)
+int dccp_insert_option_timestamp(struct sk_buff *skb)
 {
        __be32 now = htonl(dccp_timestamp());
        /* yes this will overflow but that is the point as we want a
         * 10 usec 32 bit timer which mean it wraps every 11.9 hours */
 
-       return dccp_insert_option(sk, skb, DCCPO_TIMESTAMP, &now, sizeof(now));
+       return dccp_insert_option(skb, DCCPO_TIMESTAMP, &now, sizeof(now));
 }
 
 EXPORT_SYMBOL_GPL(dccp_insert_option_timestamp);
@@ -531,9 +529,9 @@ int dccp_insert_options(struct sock *sk, struct sk_buff *skb)
                if (DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_REQUEST) {
                        /*
                         * Obtain RTT sample from Request/Response exchange.
-                        * This is currently used in CCID 3 initialisation.
+                        * This is currently used for TFRC initialisation.
                         */
-                       if (dccp_insert_option_timestamp(sk, skb))
+                       if (dccp_insert_option_timestamp(skb))
                                return -1;
 
                } else if (dp->dccps_hc_rx_ackvec != NULL &&
@@ -564,6 +562,10 @@ int dccp_insert_options_rsk(struct dccp_request_sock *dreq, struct sk_buff *skb)
        if (dccp_feat_insert_opts(NULL, dreq, skb))
                return -1;
 
+       /* Obtain RTT sample from Response/Ack exchange (used by TFRC). */
+       if (dccp_insert_option_timestamp(skb))
+               return -1;
+
        if (dreq->dreq_timestamp_echo != 0 &&
            dccp_insert_option_timestamp_echo(NULL, dreq, skb))
                return -1;