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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2007-12-17 10:07:44 -0200
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:58:21 -0800
commit8e138e7949490eebdccbd65b1f660a0488149a6b (patch)
tree8013f8f699f3bac8daa9747183a704854150c496 /net/dccp/ccids/ccid3.c
parent17159b0b494ad27f397f914d6eab1b91faf57630 (diff)
[CCID3]: Use a function to update p_inv, and p is never used
This patch 1) concentrates previously scattered computation of p_inv into one function; 2) removes the `p' element of the CCID3 RX sock (it is redundant); 3) makes the tfrc_rx_info structure standalone, only used on demand. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/ccids/ccid3.c')
-rw-r--r--net/dccp/ccids/ccid3.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index cd9b9ffe2ec..e31560daa0b 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -917,6 +917,7 @@ static int ccid3_hc_rx_getsockopt(struct sock *sk, const int optname, int len,
u32 __user *optval, int __user *optlen)
{
const struct ccid3_hc_rx_sock *hcrx;
+ struct tfrc_rx_info rx_info;
const void *val;
/* Listen socks doesn't have a private CCID block */
@@ -926,10 +927,14 @@ static int ccid3_hc_rx_getsockopt(struct sock *sk, const int optname, int len,
hcrx = ccid3_hc_rx_sk(sk);
switch (optname) {
case DCCP_SOCKOPT_CCID_RX_INFO:
- if (len < sizeof(hcrx->ccid3hcrx_tfrc))
+ if (len < sizeof(rx_info))
return -EINVAL;
- len = sizeof(hcrx->ccid3hcrx_tfrc);
- val = &hcrx->ccid3hcrx_tfrc;
+ rx_info.tfrcrx_x_recv = hcrx->ccid3hcrx_x_recv;
+ rx_info.tfrcrx_rtt = hcrx->ccid3hcrx_rtt;
+ rx_info.tfrcrx_p = hcrx->ccid3hcrx_pinv == 0 ? ~0U :
+ scaled_div(1, hcrx->ccid3hcrx_pinv);
+ len = sizeof(rx_info);
+ val = &rx_info;
break;
default:
return -ENOPROTOOPT;