diff options
Diffstat (limited to 'src/net/interface.go')
| -rw-r--r-- | src/net/interface.go | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/net/interface.go b/src/net/interface.go index 301a5cfd22..b3297f249d 100644 --- a/src/net/interface.go +++ b/src/net/interface.go @@ -172,6 +172,9 @@ func InterfaceByName(name string) (*Interface, error) { // An ipv6ZoneCache represents a cache holding partial network // interface information. It is used for reducing the cost of IPv6 // addressing scope zone resolution. +// +// Multiple names sharing the index are managed by first-come +// first-served basis for consistency. type ipv6ZoneCache struct { sync.RWMutex // guard the following lastFetched time.Time // last time routing information was fetched @@ -202,7 +205,9 @@ func (zc *ipv6ZoneCache) update(ift []Interface) { zc.toName = make(map[int]string, len(ift)) for _, ifi := range ift { zc.toIndex[ifi.Name] = ifi.Index - zc.toName[ifi.Index] = ifi.Name + if _, ok := zc.toName[ifi.Index]; !ok { + zc.toName[ifi.Index] = ifi.Name + } } } |