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authorEric Dumazet <edumazet@google.com>2021-11-15 09:23:03 -0800
committerJakub Kicinski <kuba@kernel.org>2021-11-16 19:07:54 -0800
commit49ecc2e9c3abd269951972fa8b23a4d081111b80 (patch)
treea80df702ca11dfc0473c23ed47b6552ce63f2a6a /net/ipv6/syncookies.c
parent7071732c26fe2cf141185ed16a8a85d02495ae8c (diff)
net: align static siphash keys
siphash keys use 16 bytes. Define siphash_aligned_key_t macro so that we can make sure they are not crossing a cache line boundary. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/syncookies.c')
-rw-r--r--net/ipv6/syncookies.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index e8cfb9e997bf..d1b61d00368e 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -20,7 +20,7 @@
#define COOKIEBITS 24 /* Upper bits store count */
#define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
-static siphash_key_t syncookie6_secret[2] __read_mostly;
+static siphash_aligned_key_t syncookie6_secret[2];
/* RFC 2460, Section 8.3:
* [ipv6 tcp] MSS must be computed as the maximum packet size minus 60 [..]