diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 7f2c2bb73815c72fa61f05f748cebfa9d597c3e1..7af9e34ec261bfbc16483ac72c75383abdcaa8de 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -92,6 +92,9 @@
 
 #define __no_sanitize_undefined __attribute__((__no_sanitize_undefined__))
 
+/*
+ * Only supported since gcc >= 12
+ */
 #if defined(CONFIG_KCOV) && __has_attribute(__no_sanitize_coverage__)
 #define __no_sanitize_coverage __attribute__((__no_sanitize_coverage__))
 #else