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wgengine: remove unused singleflight group 

Signed-off-by: James Tucker <james@tailscale.com>
pull/5477/head
James Tucker 2022-08-29 17:39:32 -07:00 committed by James Tucker
parent 2c18517121
commit 90dc0e1702
1 changed files with 0 additions and 5 deletions
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5
wgengine/userspace.go
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@ -44,7 +44,6 @@ import (
"tailscale.com/util/clientmetric"
"tailscale.com/util/deephash"
"tailscale.com/util/mak"
"tailscale.com/util/singleflight"
"tailscale.com/version"
"tailscale.com/wgengine/filter"
"tailscale.com/wgengine/magicsock"
@ -146,10 +145,6 @@ type userspaceEngine struct {
// value of the ICMP identifer and sequence number concatenated.
icmpEchoResponseCallback map[uint32]func()
// this singleflight is used to deduplicate calls to getStatus when we
// don't care if the data is perfectly fresh
getStatusSf singleflight.Group[struct{}, *Status]
// Lock ordering: magicsock.Conn.mu, wgLock, then mu.
}