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| author | Colin Ian King <colin.king@canonical.com> | 2018-07-17 17:12:39 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-18 15:11:09 -0700 |
| commit | 169dc027fb02492ea37a0575db6a658cf922b854 (patch) | |
| tree | bdce1d5bf96d8b9d66439aa0088590e08167afb9 /include/net | |
| parent | 3ee593adbbb46d9e1bb1320915943926f4744483 (diff) | |
| download | lwn-169dc027fb02492ea37a0575db6a658cf922b854.tar.gz lwn-169dc027fb02492ea37a0575db6a658cf922b854.zip | |
ipv6: fix useless rol32 call on hash
The rol32 call is currently rotating hash but the rol'd value is
being discarded. I believe the current code is incorrect and hash
should be assigned the rotated value returned from rol32.
Thanks to David Lebrun for spotting this.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ipv6.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 7528632bcf2a..8f73be494503 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -823,7 +823,7 @@ static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb, * to minimize possbility that any useful information to an * attacker is leaked. Only lower 20 bits are relevant. */ - rol32(hash, 16); + hash = rol32(hash, 16); flowlabel = (__force __be32)hash & IPV6_FLOWLABEL_MASK; |