sys: fix typo in ETHTOOLGCHANNELS const and diagnose such cases

1 files changed, 8 insertions, 0 deletions

diff --git a/sys/syz-sysgen/sysgen.go b/sys/syz-sysgen/sysgen.go
index c1a6caf27..903361af6 100644
--- a/sys/syz-sysgen/sysgen.go
+++ b/sys/syz-sysgen/sysgen.go
@@ -55,6 +55,7 @@ func main() {
 	logf(1, "Parse system call descriptions")
 	desc := Parse(r)
 
+	unsupportedFlags := make(map[string]int)
 	consts := make(map[string]map[string]uint64)
 	for _, arch := range archs {
 		logf(0, "generating %v...", arch.Name)
@@ -71,6 +72,7 @@ func main() {
 					} else {
 						if !unsupported[val] {
 							unsupported[val] = true
+							unsupportedFlags[val]++
 							logf(0, "unsupported flag: %v", val)
 						}
 					}
@@ -91,6 +93,12 @@ func main() {
 		logf(0, "")
 	}
 
+	for flag, count := range unsupportedFlags {
+		if count == len(archs) {
+			failf("flag %v is unsupported on all arches (typo?)", flag)
+		}
+	}
+
 	generateExecutorSyscalls(desc.Syscalls, consts)
 
 	if *flagMemProfile != "" {