kbuild: show warning if 'make headers_check' is used

Since commit 7ecaf06 ("kbuild: move headers_check rule to usr/include/Makefile"), 'make headers_check' is no-op. This stub target is remaining here in case some scripts still invoke it. In order to prompt people to remove stale code, show a noisy warning message if used. The stub will be really removed after the Linux 5.15 release. Signed-off-by: Masahiro Yamada <[email protected]>
bignaux · Apr 24, 2021 · 609bbb4 · 609bbb4
1 parent 805b2e1
commit 609bbb4
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/Makefile b/Makefile
@@ -1358,7 +1358,11 @@ headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
 # Deprecated. It is no-op now.
 PHONY += headers_check
 headers_check:
-	@:
+	@echo >&2 "=================== WARNING ==================="
+	@echo >&2 "Since Linux 5.5, 'make headers_check' is no-op,"
+	@echo >&2 "and will be removed after Linux 5.15 release."
+	@echo >&2 "Please remove headers_check from your scripts."
+	@echo >&2 "==============================================="
 
 ifdef CONFIG_HEADERS_INSTALL
 prepare: headers