From 253ff51635ad6690276ef065d59523c4bd1cd584 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 26 Aug 2014 12:55:53 +0200 Subject: [PATCH] tcp: syncookies: mark cookie_secret read_mostly only written once. Signed-off-by: Florian Westphal Signed-off-by: David S. Miller --- net/ipv4/syncookies.c | 2 +- net/ipv6/syncookies.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index c0c75688896e..0431a8f3c8f4 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -25,7 +25,7 @@ extern int sysctl_tcp_syncookies; -static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS]; +static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly; #define COOKIEBITS 24 /* Upper bits store count */ #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1) diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index 83cea1d39466..c643dc907ce7 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -24,7 +24,7 @@ #define COOKIEBITS 24 /* Upper bits store count */ #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1) -static u32 syncookie6_secret[2][16-4+SHA_DIGEST_WORDS]; +static u32 syncookie6_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly; /* RFC 2460, Section 8.3: * [ipv6 tcp] MSS must be computed as the maximum packet size minus 60 [..] -- 2.20.1