diff options
| author |   Jakub Kicinski <kuba@kernel.org> | 2021-08-26 13:45:47 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-08-26 17:57:57 -0700 |
| commit | 97c78d0af55fff206947a5f2b85b690b5acf28ce (patch) | |
| tree | 9799b7594e0f4429919882a684d36ba649e0408b /net/ipv6/route.c | |
| parent | Merge branch 'LiteETH-driver' (diff) | |
| parent | Merge tag 'nfsd-5.14-1' of git://linux-nfs.org/~bfields/linux (diff) | |
| download | linux-dev-97c78d0af55fff206947a5f2b85b690b5acf28ce.tar.xz linux-dev-97c78d0af55fff206947a5f2b85b690b5acf28ce.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/wwan/mhi_wwan_mbim.c - drop the extra arg.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 6cf4bb89ca69..f34137d5bf85 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -41,6 +41,7 @@ #include <linux/nsproxy.h> #include <linux/slab.h> #include <linux/jhash.h> +#include <linux/siphash.h> #include <net/net_namespace.h> #include <net/snmp.h> #include <net/ipv6.h> @@ -1484,17 +1485,24 @@ 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 u32 seed __read_mostly; - u32 val; + static siphash_key_t rt6_exception_key __read_mostly; + struct { + struct in6_addr dst; + struct in6_addr src; + } __aligned(SIPHASH_ALIGNMENT) combined = { + .dst = *dst, + }; + u64 val; - net_get_random_once(&seed, sizeof(seed)); - val = jhash2((const u32 *)dst, sizeof(*dst)/sizeof(u32), seed); + net_get_random_once(&rt6_exception_key, sizeof(rt6_exception_key)); #ifdef CONFIG_IPV6_SUBTREES if (src) - val = jhash2((const u32 *)src, sizeof(*src)/sizeof(u32), val); + combined.src = *src; #endif - return hash_32(val, FIB6_EXCEPTION_BUCKET_SIZE_SHIFT); + val = siphash(&combined, sizeof(combined), &rt6_exception_key); + + return hash_64(val, FIB6_EXCEPTION_BUCKET_SIZE_SHIFT); } /* Helper function to find the cached rt in the hash table |