Since commit 7ecaf069da52 ("kbuild: move headers_check rule to usr/include/Makefile"), the headers_check target is no-op. This stub target is remaining here in case some scripts still invoke 'make headers_check'. 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@xxxxxxxxxx> --- Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index f9b54da2fca0..a3336d9b4a22 100644 --- a/Makefile +++ b/Makefile @@ -1339,7 +1339,11 @@ 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 -- 2.27.0