linux-kernel - [PATCH] kbuild: save overridden KERNELRELEASE in include/config/kernel.release

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Message-Id: <20230127161942.543483-1-masahiroy@kernel.org>
Date:   Sat, 28 Jan 2023 01:19:42 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>
Subject: [PATCH] kbuild: save overridden KERNELRELEASE in include/config/kernel.release

${KERNELRELEASE} is used as a part of the installation path.
(INSTALL_DTBS_PATH, MODLIB, etc.)

When KERNELRELEASE is overridden from the command line, it should be
saved in include/config/kernel.release, so that it will be consistently
used for the installation steps.

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

This patch will replace the buggy
 https://lore.kernel.org/linux-kbuild/20230122141428.115372-6-masahiroy@kernel.org/T/#u

 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 203b86e95197..aeea900eff71 100644
--- a/Makefile
+++ b/Makefile
@@ -1258,7 +1258,11 @@ vmlinux: vmlinux.o $(KBUILD_LDS) modpost
 # make sure no implicit rule kicks in
 $(sort $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS)): . ;
 
+ifeq ($(origin KERNELRELEASE),file)
 filechk_kernel.release = $(srctree)/scripts/setlocalversion $(srctree)
+else
+filechk_kernel.release = echo $(KERNELRELEASE)
+endif
 
 # Store (new) KERNELRELEASE string in include/config/kernel.release
 include/config/kernel.release: FORCE
-- 
2.34.1