linux-kernel - [PATCH v2 1/5] kbuild: uapi: rerun header tests when headers

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Message-Id: <20250813-kbuild-hdrtest-fixes-v2-1-8a7921ca3a03@linutronix.de>
Date: Wed, 13 Aug 2025 08:16:56 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Nathan Chancellor <nathan@...nel.org>, 
 Nicolas Schier <nicolas.schier@...ux.dev>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Nicolas Schier <nsc@...nel.org>, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH v2 1/5] kbuild: uapi: rerun header tests when
 headers_check.pl changes

If the checks change they need to be rerun.

Add a Makefile dependency so this happens.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Reviewed-by: Nicolas Schier <nsc@...nel.org>
---
 usr/include/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr/include/Makefile b/usr/include/Makefile
index f02f41941b60c88d921da2b955076bbff7884c1c..c7f164952b33acf6c7b8eb7ce91cd192bfc39ad2 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -85,7 +85,7 @@ quiet_cmd_hdrtest = HDRTEST $<
 		$(PERL) $(src)/headers_check.pl $(obj) $<; \
 		touch $@
 
-$(obj)/%.hdrtest: $(obj)/%.h FORCE
+$(obj)/%.hdrtest: $(obj)/%.h $(src)/headers_check.pl FORCE
 	$(call if_changed_dep,hdrtest)
 
 # Since GNU Make 4.3, $(patsubst $(obj)/%/,%,$(wildcard $(obj)/*/)) works.

-- 
2.50.1