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| author |   Eric Dumazet <edumazet@google.com> | 2021-11-15 09:23:03 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2021-11-16 19:07:54 -0800 |
| commit | 49ecc2e9c3abd269951972fa8b23a4d081111b80 (patch) | |
| tree | a80df702ca11dfc0473c23ed47b6552ce63f2a6a /net/ipv6 | |
| parent | net: use .data.once section in netdev_level_once() (diff) | |
| download | linux-dev-49ecc2e9c3abd269951972fa8b23a4d081111b80.tar.xz linux-dev-49ecc2e9c3abd269951972fa8b23a4d081111b80.zip | |
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')
| -rw-r--r-- | net/ipv6/route.c | 2 | ||||
| -rw-r--r-- | net/ipv6/syncookies.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3ae25b8ffbd6..5e8f2f15607d 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1485,7 +1485,7 @@ static void rt6_exception_remove_oldest(struct rt6_exception_bucket *bucket) static u32 rt6_exception_hash(const struct in6_addr *dst, const struct in6_addr *src) { - static siphash_key_t rt6_exception_key __read_mostly; + static siphash_aligned_key_t rt6_exception_key; struct { struct in6_addr dst; struct in6_addr src; 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 [..] |