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selftests/mm: report the configuration check on stderr

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The mm Makefile includes local_config.mk, which is generated by a rule
that announces itself with "CHK [config] local_config.mk" on standard
output, which make -s does not suppress. When make has to regenerate the
file while it reads the Makefile for emit_tests, for example on a fresh
tree or when the selftests are installed with make -B, the message
becomes part of the emit_tests output that the selftests install target
appends to kselftest-list.txt, so the runlist gains a line that is not a
test.

Print the message on standard error. With V=1 the message is empty and
only the redirection of an empty command remains.

Link: https://lore.kernel.org/20261014200137.1364121-1-sashal@kernel.org
Fixes: 04cf82a741 ("selftests/mm: suppress compiler error in liburing check")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Wang <li.wang@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
This commit is contained in:
Sasha Levin 2026-10-14 16:01:37 -04:00 committed by Andrew Morton
parent 4425c67300
commit 4a0ef60787
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/mm/Makefile
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@ -266,7 +266,7 @@ $(OUTPUT)/migration: LDLIBS += -lnuma
$(OUTPUT)/rmap: LDLIBS += -lnuma
local_config.mk local_config.h_gen: check_config.sh
$(call msg,CHK,config,$@)
@{ $(patsubst @%,%,$(call msg,CHK,config,$@)) :; } >&2
$(Q)CC="$(CC)" CFLAGS="$(CFLAGS)" ./check_config.sh
EXTRA_CLEAN += local_config.mk local_config.h_gen