linux-kernel - [PATCH 2/2] kbuild: re-run modpost stage when scripts/mod/modpost is updated

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Message-Id: <20220906193436.2135744-2-masahiroy@kernel.org>
Date:   Wed,  7 Sep 2022 04:34:36 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH 2/2] kbuild: re-run modpost stage when scripts/mod/modpost is updated

vmlinux depends on .vmlinux.export.c, modules depend on *.mod.c.

They are output from modpost, so the modpost stage must be re-run
when the modpost code is updated.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 scripts/Makefile.modpost | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 87821a5fe16b..1afe50971f3b 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -120,7 +120,7 @@ quiet_cmd_modpost = MODPOST $@
 	sed 's/ko$$/o/' $(or $(modorder-if-needed), /dev/null) | $(MODPOST) $(modpost-args-y) $(vmlinux.o-if-present) -T - -o $@
 
 targets += $(output-symdump)
-$(output-symdump): $(modorder-if-needed) $(vmlinux.o-if-present) $(moudle.symvers-if-present) FORCE
+$(output-symdump): $(modorder-if-needed) $(vmlinux.o-if-present) $(moudle.symvers-if-present) $(MODPOST) FORCE
 	$(call if_changed,modpost)
 
 __modpost: $(output-symdump)
-- 
2.34.1