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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2011-07-03 09:53:12 -0600 |
|---|---|---|
| committer | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2011-07-04 12:37:40 -0600 |
| commit | 58fdea0f3170c13a3b875ef904d5b67cf73814be (patch) | |
| tree | 9cdaa4c22734531b21479dc594dadf6ffbcd36d4 | |
| parent | b4d5f4b2884625d13c7ef5b9fd085ec93bbf545c (diff) | |
| download | linux-stable-58fdea0f3170c13a3b875ef904d5b67cf73814be.tar.gz linux-stable-58fdea0f3170c13a3b875ef904d5b67cf73814be.tar.bz2 linux-stable-58fdea0f3170c13a3b875ef904d5b67cf73814be.zip | |
dccp ccid-2: Use existing function to test for data packets
This replaces a switch statement with a test, using the equivalent
function dccp_data_packet(skb). It also doubles the range of the field
`rx_num_data_pkts' by changing the type from `int' to `u32', avoiding
signed/unsigned comparison with the u16 field `dccps_r_ack_ratio'.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
| -rw-r--r-- | net/dccp/ccids/ccid2.c | 16 | ||||
| -rw-r--r-- | net/dccp/ccids/ccid2.h | 6 |
2 files changed, 11 insertions, 11 deletions
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index e96d5e810039..7d917981a4d1 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -627,18 +627,14 @@ static void ccid2_hc_tx_exit(struct sock *sk) static void ccid2_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb) { - const struct dccp_sock *dp = dccp_sk(sk); struct ccid2_hc_rx_sock *hc = ccid2_hc_rx_sk(sk); - switch (DCCP_SKB_CB(skb)->dccpd_type) { - case DCCP_PKT_DATA: - case DCCP_PKT_DATAACK: - hc->rx_data++; - if (hc->rx_data >= dp->dccps_r_ack_ratio) { - dccp_send_ack(sk); - hc->rx_data = 0; - } - break; + if (!dccp_data_packet(skb)) + return; + + if (++hc->rx_num_data_pkts >= dccp_sk(sk)->dccps_r_ack_ratio) { + dccp_send_ack(sk); + hc->rx_num_data_pkts = 0; } } diff --git a/net/dccp/ccids/ccid2.h b/net/dccp/ccids/ccid2.h index f17460a8fe7f..da021ebce9af 100644 --- a/net/dccp/ccids/ccid2.h +++ b/net/dccp/ccids/ccid2.h @@ -97,8 +97,12 @@ static inline u32 rfc3390_bytes_to_packets(const u32 smss) return smss <= 1095 ? 4 : (smss > 2190 ? 2 : 3); } +/** + * struct ccid2_hc_rx_sock - Receiving end of CCID-2 half-connection + * @rx_num_data_pkts: number of data packets received since last feedback + */ struct ccid2_hc_rx_sock { - int rx_data; + u32 rx_num_data_pkts; }; static inline struct ccid2_hc_tx_sock *ccid2_hc_tx_sk(const struct sock *sk) |