diff options
Diffstat (limited to 'net/dccp/ackvec.c')
| -rw-r--r-- | net/dccp/ackvec.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c index 2c77dafbd091..348374005db0 100644 --- a/net/dccp/ackvec.c +++ b/net/dccp/ackvec.c @@ -20,6 +20,10 @@ int dccp_insert_option_ackvec(struct sock *sk, struct sk_buff *skb) { struct dccp_sock *dp = dccp_sk(sk); +#ifdef CONFIG_IP_DCCP_DEBUG + const char *debug_prefix = dp->dccps_role == DCCP_ROLE_CLIENT ? + "CLIENT tx: " : "server tx: "; +#endif struct dccp_ackvec *av = dp->dccps_hc_rx_ackvec; int len = av->dccpav_vec_len + 2; struct timeval now; @@ -90,21 +94,13 @@ int dccp_insert_option_ackvec(struct sock *sk, struct sk_buff *skb) return -1; } -struct dccp_ackvec *dccp_ackvec_alloc(const unsigned int len, - const gfp_t priority) +struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority) { - struct dccp_ackvec *av; - - BUG_ON(len == 0); - - if (len > DCCP_MAX_ACKVEC_LEN) - return NULL; + struct dccp_ackvec *av = kmalloc(sizeof(*av), priority); - av = kmalloc(sizeof(*av) + len, priority); if (av != NULL) { - av->dccpav_buf_len = len; av->dccpav_buf_head = - av->dccpav_buf_tail = av->dccpav_buf_len - 1; + av->dccpav_buf_tail = DCCP_MAX_ACKVEC_LEN - 1; av->dccpav_buf_ackno = av->dccpav_ack_ackno = av->dccpav_ack_seqno = ~0LLU; av->dccpav_buf_nonce = av->dccpav_buf_nonce = 0; @@ -146,7 +142,7 @@ static inline int dccp_ackvec_set_buf_head_state(struct dccp_ackvec *av, unsigned int gap; long new_head; - if (av->dccpav_vec_len + packets > av->dccpav_buf_len) + if (av->dccpav_vec_len + packets > DCCP_MAX_ACKVEC_LEN) return -ENOBUFS; gap = packets - 1; @@ -158,7 +154,7 @@ static inline int dccp_ackvec_set_buf_head_state(struct dccp_ackvec *av, gap + new_head + 1); gap = -new_head; } - new_head += av->dccpav_buf_len; + new_head += DCCP_MAX_ACKVEC_LEN; } av->dccpav_buf_head = new_head; @@ -251,7 +247,7 @@ int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk, goto out_duplicate; delta -= len + 1; - if (++index == av->dccpav_buf_len) + if (++index == DCCP_MAX_ACKVEC_LEN) index = 0; } } |