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kbuild: unset sub_make_done before calling kselftest build system

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The kselftest build system may recourse back into kbuild when building
test modules. In that case kbuild needs to parse the new flags passed
from the command line, instead of using the ones inherited from the
kbuild invocation.

Force that command line reevaluation.

The same was done for scripts/install.sh in commit 14ccc638b0
("kbuild: cancel sub_make_done for the install target to fix DKMS")

Reported-by: Zelin Deng <zelin.deng@linux.alibaba.com>
Closes: https://lore.kernel.org/all/20260525083721.27857-1-zelin.deng@linux.alibaba.com/
Fixes: c9bb03ac2c ("kbuild: reduce output spam when building out of tree")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Petr Mladek <pmladek@suse.com>
Tested-by: Zelin Deng <zelin.deng@linux.alibaba.com>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Link: https://patch.msgid.link/20260703-makefile-unset-submake-done-v1-1-6899248f3d6a@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Thomas Weißschuh 2026-07-03 08:04:08 +02:00 committed by Petr Mladek
parent 1a38fd13c3
commit e77f165d26
1 changed files with 2 additions and 2 deletions
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4
Makefile
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@ -1570,10 +1570,10 @@ tools/%: FORCE
PHONY += kselftest
kselftest: headers
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
$(Q)unset sub_make_done; $(MAKE) -C $(srctree)/tools/testing/selftests run_tests
kselftest-%: headers FORCE
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests $*
$(Q)unset sub_make_done; $(MAKE) -C $(srctree)/tools/testing/selftests $*
PHONY += kselftest-merge
kselftest-merge: