Drop the fatal flag now that every failed check is fatal

system.go

@@ -126,7 +126,6 @@ func clearFlowRules(fd int, ifname string) checkResult {
 	locs, _, err := allRuleLocations(fd, ifname)
 	if err != nil {
 		res.err = err
-		res.fatal = true
 		return res
 	}
 	n := 0
@@ -136,7 +135,6 @@ func clearFlowRules(fd int, ifname string) checkResult {
 		}
 		if err := deleteRule(fd, ifname, loc); err != nil {
 			res.err = fmt.Errorf("deleting rule %d: %w", loc, err)
-			res.fatal = true
 			return res
 		}
 		n++
@@ -151,25 +149,21 @@ func checkFlowRules(fd int, ifname string, ethertypes []uint16) checkResult {
 	rings, err := rxRings(fd, ifname)
 	if err != nil {
 		res.err = err
-		res.fatal = true
 		return res
 	}
 	if uint64(len(ethertypes)) > rings {
 		res.err = fmt.Errorf("%d streams needs %d rx rings, only %d available",
 			len(ethertypes), len(ethertypes), rings)
-		res.fatal = true
 		return res
 	}
 
 	locs, capacity, err := allRuleLocations(fd, ifname)
 	if err != nil {
 		res.err = err
-		res.fatal = true
 		return res
 	}
 	if capacity < uint32(len(ethertypes)) {
 		res.err = fmt.Errorf("filter capacity %d is below %d streams", capacity, len(ethertypes))
-		res.fatal = true
 		return res
 	}
 	taken := make(map[uint32]bool, len(locs))
@@ -185,7 +179,6 @@ func checkFlowRules(fd int, ifname string, ethertypes []uint16) checkResult {
 		if err := insertEtherRule(fd, ifname, et, uint64(i), next); err != nil {
 			res.err = fmt.Errorf("steering ethertype 0x%04x to queue %d at location %d: %w",
 				et, i, next, err)
-			res.fatal = true
 			return res
 		}
 		taken[next] = true
@@ -258,7 +251,6 @@ type checkResult struct {
 	item  string
 	state string
 	fixed bool
-	fatal bool
 	err   error
 }
 
@@ -285,18 +277,18 @@ func (r checkResult) detail() string {
 
 func reportChecks(title string, results []checkResult) error {
 	var rows [][]string
-	var fatal []string
+	var failed []string
 	for _, r := range results {
 		rows = append(rows, []string{r.item, r.status(), r.detail()})
-		if r.fatal {
-			fatal = append(fatal, r.item)
+		if r.err != nil {
+			failed = append(failed, r.item)
 		}
 	}
 	fmt.Println(renderBox(title,
 		[]string{"CHECK", "STATUS", "DETAIL"},
 		[]bool{false, false, false}, rows))
-	if len(fatal) > 0 {
-		return fmt.Errorf("cannot test with %s in this state", strings.Join(fatal, ", "))
+	if len(failed) > 0 {
+		return fmt.Errorf("cannot test with %s in this state", strings.Join(failed, ", "))
 	}
 	return nil
 }
@@ -462,7 +454,6 @@ func checkGovernor(want string) checkResult {
 	paths, err := filepath.Glob("/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor")
 	if err != nil || len(paths) == 0 {
 		res.err = fmt.Errorf("no cpufreq governors found")
-		res.fatal = true
 		return res
 	}
 	var wrong []string
@@ -471,7 +462,6 @@ func checkGovernor(want string) checkResult {
 		b, err := os.ReadFile(p)
 		if err != nil {
 			res.err = err
-			res.fatal = true
 			return res
 		}
 		got := strings.TrimSpace(string(b))
@@ -492,7 +482,6 @@ func checkGovernor(want string) checkResult {
 		if err := os.WriteFile(p, []byte(want), 0o644); err != nil {
 			res.err = err
 			res.state = fmt.Sprintf("could not set %s", p)
-			res.fatal = true
 			return res
 		}
 	}
@@ -509,7 +498,6 @@ func checkLinkUp(fd int, ifname string) checkResult {
 		uintptr(unix.SIOCGIFFLAGS), uintptr(unsafe.Pointer(&ifr)))
 	if errno != 0 {
 		res.err = errno
-		res.fatal = true
 		return res
 	}
 	if ifr.flags&unix.IFF_UP != 0 {
@@ -522,7 +510,6 @@ func checkLinkUp(fd int, ifname string) checkResult {
 	if errno != 0 {
 		res.err = errno
 		res.state = "could not set IFF_UP"
-		res.fatal = true
 		return res
 	}
 	res.fixed = true
@@ -535,7 +522,6 @@ func checkCoalesce(fd int, ifname string, rxUsecs, txUsecs uint32) checkResult {
 	ec, err := getCoalesce(fd, ifname)
 	if err != nil {
 		res.err = err
-		res.fatal = true
 		return res
 	}
 	desc := func(e ethtoolCoalesce) string {
@@ -556,7 +542,6 @@ func checkCoalesce(fd int, ifname string, rxUsecs, txUsecs uint32) checkResult {
 	if err := ethtoolCall(fd, ifname, unsafe.Pointer(&ec)); err != nil {
 		res.err = err
 		res.state = "could not set"
-		res.fatal = true
 		return res
 	}
 	res.fixed = true
@@ -569,7 +554,6 @@ func checkRings(fd int, ifname string, rxWant, txWant uint32) checkResult {
 	rp, err := getRings(fd, ifname)
 	if err != nil {
 		res.err = err
-		res.fatal = true
 		return res
 	}
 	rx := min(rxWant, rp.rxMaxPending)
@@ -585,7 +569,6 @@ func checkRings(fd int, ifname string, rxWant, txWant uint32) checkResult {
 	if err := ethtoolCall(fd, ifname, unsafe.Pointer(&rp)); err != nil {
 		res.err = err
 		res.state = "could not set"
-		res.fatal = true
 		return res
 	}
 	res.fixed = true
@@ -596,7 +579,7 @@ func checkRings(fd int, ifname string, rxWant, txWant uint32) checkResult {
 func withIoctlSocket(fn func(fd int) []checkResult) []checkResult {
 	fd, err := unix.Socket(unix.AF_INET, unix.SOCK_DGRAM, 0)
 	if err != nil {
-		return []checkResult{{item: "ioctl socket", err: err, fatal: true}}
+		return []checkResult{{item: "ioctl socket", err: err}}
 	}
 	defer unix.Close(fd)
 	return fn(fd)