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-rw-r--r--include/net/mctp.h12
-rw-r--r--net/mctp/device.c2
-rw-r--r--net/mctp/neigh.c2
-rw-r--r--net/mctp/route.c2
4 files changed, 14 insertions, 4 deletions
diff --git a/include/net/mctp.h b/include/net/mctp.h
index e80a4baf8379..d37268fe6825 100644
--- a/include/net/mctp.h
+++ b/include/net/mctp.h
@@ -40,11 +40,21 @@ struct mctp_hdr {
#define MCTP_INITIAL_DEFAULT_NET 1
-static inline bool mctp_address_ok(mctp_eid_t eid)
+static inline bool mctp_address_unicast(mctp_eid_t eid)
{
return eid >= 8 && eid < 255;
}
+static inline bool mctp_address_broadcast(mctp_eid_t eid)
+{
+ return eid == 255;
+}
+
+static inline bool mctp_address_null(mctp_eid_t eid)
+{
+ return eid == 0;
+}
+
static inline bool mctp_address_matches(mctp_eid_t match, mctp_eid_t eid)
{
return match == eid || match == MCTP_ADDR_ANY;
diff --git a/net/mctp/device.c b/net/mctp/device.c
index 02ddc0f1bd3e..9e097e61f23a 100644
--- a/net/mctp/device.c
+++ b/net/mctp/device.c
@@ -209,7 +209,7 @@ static int mctp_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh,
if (!mdev)
return -ENODEV;
- if (!mctp_address_ok(addr->s_addr))
+ if (!mctp_address_unicast(addr->s_addr))
return -EINVAL;
/* Prevent duplicates. Under RTNL so don't need to lock for reading */
diff --git a/net/mctp/neigh.c b/net/mctp/neigh.c
index 6ad3e33bd4d4..ffa0f9e0983f 100644
--- a/net/mctp/neigh.c
+++ b/net/mctp/neigh.c
@@ -143,7 +143,7 @@ static int mctp_rtm_newneigh(struct sk_buff *skb, struct nlmsghdr *nlh,
}
eid = nla_get_u8(tb[NDA_DST]);
- if (!mctp_address_ok(eid)) {
+ if (!mctp_address_unicast(eid)) {
NL_SET_ERR_MSG(extack, "Invalid neighbour EID");
return -EINVAL;
}
diff --git a/net/mctp/route.c b/net/mctp/route.c
index 0c4c56e1bd6e..6a11d78cfbab 100644
--- a/net/mctp/route.c
+++ b/net/mctp/route.c
@@ -962,7 +962,7 @@ static int mctp_route_add(struct mctp_dev *mdev, mctp_eid_t daddr_start,
struct net *net = dev_net(mdev->dev);
struct mctp_route *rt, *ert;
- if (!mctp_address_ok(daddr_start))
+ if (!mctp_address_unicast(daddr_start))
return -EINVAL;
if (daddr_extent > 0xff || daddr_start + daddr_extent >= 255)