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authorEric Dumazet <eric.dumazet@gmail.com>2011-10-21 11:22:42 +0200
committerDavid S. Miller <davem@davemloft.net>2011-10-21 11:22:42 +0200
commitcf533ea53ebfae41be15b103d78e7ebec30b9969 (patch)
tree51ed3c69f4a15117fefe5cbd291a75010beb0f4b /net/core
parentdev: use name hash for dev_seq_ops (diff)
downloadlinux-cf533ea53ebfae41be15b103d78e7ebec30b9969.tar.xz
linux-cf533ea53ebfae41be15b103d78e7ebec30b9969.zip
tcp: add const qualifiers where possible
Adding const qualifiers to pointers can ease code review, and spot some bugs. It might allow compiler to optimize code further. For example, is it legal to temporary write a null cksum into tcphdr in tcp_md5_hash_header() ? I am afraid a sniffer could catch the temporary null value... Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/secure_seq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 45329d7c9dd9..025233de25f9 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -35,7 +35,7 @@ static u32 seq_scale(u32 seq)
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-__u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr,
+__u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr,
__be16 sport, __be16 dport)
{
u32 secret[MD5_MESSAGE_BYTES / 4];