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kbuild: deb-pkg: don't set KBUILD_BUILD_VERSION unconditionally

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In ThinPro, we use the convention <upstream_ver>+hp<patchlevel> for
the kernel package. This does not have a dash in the name or version.
This is built by editing ".version" before a build, and setting
EXTRAVERSION="+hp" and KDEB_PKGVERSION make variables:

    echo 68 > .version
    make -j<n> EXTRAVERSION="+hp" bindeb-pkg KDEB_PKGVERSION=6.12.2+hp69

    .deb name: linux-image-6.12.2+hp_6.12.2+hp69_amd64.deb

Since commit 7d4f07d5cb71 ("kbuild: deb-pkg: squash
scripts/package/deb-build-option to debian/rules"), this no longer
works. The deb build logic changed, even though, the commit message
implies that the logic should be unmodified.

Before, KBUILD_BUILD_VERSION was not set if the KDEB_PKGVERSION did
not contain a dash. After the change KBUILD_BUILD_VERSION is always
set to KDEB_PKGVERSION. Since this determines UTS_VERSION, the uname
output to look off:

    (now)      uname -a: version 6.12.2+hp ... #6.12.2+hp69
    (expected) uname -a: version 6.12.2+hp ... #69

Update the debian/rules logic to restore the original behavior.

Fixes: 7d4f07d5cb71 ("kbuild: deb-pkg: squash scripts/package/deb-build-option to debian/rules")
Signed-off-by: Alexandru Gagniuc <alexandru.gagniuc@hp.com>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Alexandru Gagniuc 2025-03-14 13:10:53 +00:00 committed by Masahiro Yamada
parent 6c6c1fc09d
commit 6260406362
1 changed files with 4 additions and 2 deletions
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6
scripts/package/debian/rules
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@ -21,9 +21,11 @@ ifeq ($(origin KBUILD_VERBOSE),undefined)
endif
endif
revision = $(lastword $(subst -, ,$(shell dpkg-parsechangelog -S Version)))
revision = $(shell dpkg-parsechangelog -S Version | sed -n 's/.*-//p')
CROSS_COMPILE ?= $(filter-out $(DEB_BUILD_GNU_TYPE)-, $(DEB_HOST_GNU_TYPE)-)
make-opts = ARCH=$(ARCH) KERNELRELEASE=$(KERNELRELEASE) KBUILD_BUILD_VERSION=$(revision) $(addprefix CROSS_COMPILE=,$(CROSS_COMPILE))
make-opts = ARCH=$(ARCH) KERNELRELEASE=$(KERNELRELEASE) \
$(addprefix KBUILD_BUILD_VERSION=,$(revision)) \
$(addprefix CROSS_COMPILE=,$(CROSS_COMPILE))
binary-targets := $(addprefix binary-, image image-dbg headers libc-dev)