From 4389dded7767d24290463f2a8302ba3253ebdd56 Mon Sep 17 00:00:00 2001 From: Adam Langley Date: Sat, 19 Jul 2008 00:07:02 -0700 Subject: tcp: Remove redundant checks when setting eff_sacks Remove redundant checks when setting eff_sacks and make the number of SACKs a compile time constant. Now that the options code knows how many SACK blocks can fit in the header, we don't need to have the SACK code guessing at it. Signed-off-by: Adam Langley Signed-off-by: David S. Miller --- include/linux/tcp.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/tcp.h') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 07e79bdb9cd..2e2557388e3 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -224,6 +224,12 @@ struct tcp_options_received { u16 mss_clamp; /* Maximal mss, negotiated at connection setup */ }; +/* This is the max number of SACKS that we'll generate and process. It's safe + * to increse this, although since: + * size = TCPOLEN_SACK_BASE_ALIGNED (4) + n * TCPOLEN_SACK_PERBLOCK (8) + * only four options will fit in a standard TCP header */ +#define TCP_NUM_SACKS 4 + struct tcp_request_sock { struct inet_request_sock req; #ifdef CONFIG_TCP_MD5SIG -- cgit v1.2.3