From 609bbb4de4f85b7ef45d81a88e6b7dfe3bf5ccea Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Tue, 2 Mar 2021 23:26:14 +0900
Subject: [PATCH] kbuild: show warning if 'make headers_check' is used
Since commit 7ecaf069da52 ("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 <masahiroy@kernel.org>
---
Makefile | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index d79823428cd75..80c82155ebb6f 100644
--- 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
--
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