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authorDavid Ahern <dsa@cumulusnetworks.com>2015-08-27 16:07:01 -0700
committerDavid S. Miller <davem@davemloft.net>2015-08-28 13:32:36 -0700
commitd39d14ffa24cca9f0e44aa4a63315f4c44c56a93 (patch)
treed19cc95a22ad69e2164b9b46609ce67c577af77f /include/net/inetpeer.h
parent3abef286cf2f138de353fb0b54453621de961043 (diff)
downloadlinux-d39d14ffa24cca9f0e44aa4a63315f4c44c56a93.tar.bz2
net: Add helper function to compare inetpeer addresses
tcp_metrics and inetpeer both have functions to compare inetpeer addresses. Consolidate into 1 version. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inetpeer.h')
-rw-r--r--include/net/inetpeer.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index f75b9e7036a2..9d9b3446731d 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -121,6 +121,22 @@ static inline struct inet_peer *inet_getpeer_v6(struct inet_peer_base *base,
return inet_getpeer(base, &daddr, create);
}
+static inline int inetpeer_addr_cmp(const struct inetpeer_addr *a,
+ const struct inetpeer_addr *b)
+{
+ int i, n = (a->family == AF_INET ? 1 : 4);
+
+ for (i = 0; i < n; i++) {
+ if (a->addr.a6[i] == b->addr.a6[i])
+ continue;
+ if ((__force u32)a->addr.a6[i] < (__force u32)b->addr.a6[i])
+ return -1;
+ return 1;
+ }
+
+ return 0;
+}
+
/* can be called from BH context or outside */
void inet_putpeer(struct inet_peer *p);
bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout);