Always correct host settings instead of gating fixes behind flags

main.go

@@ -369,12 +369,10 @@ func main() {
 		rcvbuf   = flag.Int("rcvbuf", 64<<20, "SO_RCVBUFFORCE per rx socket")
 		txCPUs   = flag.String("txcpus", "", "comma-separated CPUs to pin tx workers to")
 		rxCPUs   = flag.String("rxcpus", "", "comma-separated CPUs to pin rx workers to")
-		tune     = flag.Bool("tune", true, "check host settings at startup and correct them; without this they are only reported")
 		governor = flag.String("governor", "performance", "required cpufreq governor")
 		coalesce = flag.Uint("coalesce-usecs", 25, "required fixed rx/tx coalesce usecs, with adaptive coalescing off")
 		rxRing   = flag.Uint("rx-ring", 8160, "required rx ring size, clamped to hardware maximum")
 		txRing   = flag.Uint("tx-ring", 4096, "required tx ring size, clamped to hardware maximum")
-		setRings = flag.Bool("set-rings", true, "allow ring resizing at startup, which resets the link")
 		color    = flag.String("color", "auto", "colored output: auto, always, never")
 	)
 	flag.Parse()
@@ -385,13 +383,11 @@ func main() {
 	}
 
 	tcfg := tuneConfig{
-		enabled:  *tune,
 		governor: *governor,
 		rxUsecs:  uint32(*coalesce),
 		txUsecs:  uint32(*coalesce),
 		rxRing:   uint32(*rxRing),
 		txRing:   uint32(*txRing),
-		setRings: *setRings,
 	}
 
 	if err := run(*aName, *bName, *sizesArg, *patArg, *fanout, *txCPUs, *rxCPUs,