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kbuild: show warning if 'make headers_check' is used

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Since commit 7ecaf069da ("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>
This commit is contained in:
Masahiro Yamada 2021-03-02 23:26:14 +09:00
parent 805b2e1d42
commit 609bbb4de4
1 changed files with 5 additions and 1 deletions
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6
Makefile
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@ -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