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Tue, 31 Mar 2026 04:02:24 +0000 (UTC) Received: from fedora-laptop-x1.redhat.com (unknown [10.72.112.121]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 166BC30001A2; Tue, 31 Mar 2026 04:02:18 +0000 (UTC) From: Li Wang To: akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, shuah@kernel.org Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/4] selftests/mm: fix cow/gup_longterm link failures when liburing flags are missing Date: Tue, 31 Mar 2026 12:01:56 +0800 Message-ID: <20260331040156.119158-4-liwang@redhat.com> In-Reply-To: <20260331040156.119158-1-liwang@redhat.com> References: <20260331040156.119158-1-liwang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-MFC-PROC-ID: YfC_WdApSGTFiQHyqQqN_FP3cys5NgJHWzt2PY_YiaI_1774929744 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspam-User: X-Rspamd-Queue-Id: BF40640006 X-Stat-Signature: 5inpsmfz3mn5pyjom57hrnkbtxro1hwj X-Rspamd-Server: rspam06 X-HE-Tag: 1774929751-169966 X-HE-Meta: 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 ceag3TiD iBr8a3WRk1L62WPv1/qzoNCPRdVKTh24wtlw0j62XqoOlrV0lorv4N2UC7vPHAoBx6GIK4blI55uqn5iV7gjPuyhg591BGKgHfT/XF6iM9PZ/Nr3oFobLiIeRzPMQPFhj3BO4fo9gRnNsUZqAaqJKlNnl6BaixxMpOeGU8K1aevDf2jLANEX6PAwa2aPpFdcP2U3QMbMBtuHTSOsxI153mbZup9GSRIUVQqGYtNSWLmVhl1MCDOOJW6tZC5Pqa1+8hRrDg/hY2W16+yaPoHrTb1MQR2vKS5dkfwCqsVI1bxmiyKyuX6X9S8bWInTN6Ok3UC/ZZTyNp9GNawOlrr2rFu7tCTwWidmaudCNtQ6gzHHV+2uZDeYPX9bu4WmirdvhmP38oUea5XnnBms= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: mm selftests rely on IOURING_EXTRA_LIBS (typically from local_config.mk) to link io_uring-based tests (cow and gup_longterm). On some systems with liburing installed, IOURING_EXTRA_LIBS can still be empty, causing link failures with unresolved io_uring symbols. Add a fallback detection: IOURING_EXTRA_LIBS := $(shell pkg-config --libs liburing) when IOURING_EXTRA_LIBS was not set by local_config.mk. Also gate io_uring-dependent test binaries (cow and gup_longterm) on IOURING_EXTRA_LIBS being non-empty, so missing liburing support cleanly skips those tests instead of failing the build. Signed-off-by: Li Wang --- tools/testing/selftests/mm/Makefile | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile index 78496f705386..01bdd25e04e4 100644 --- a/tools/testing/selftests/mm/Makefile +++ b/tools/testing/selftests/mm/Makefile @@ -10,6 +10,11 @@ LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h include local_config.mk +PKG_CONFIG ?= pkg-config +ifeq ($(IOURING_EXTRA_LIBS),) +IOURING_EXTRA_LIBS := $(shell $(PKG_CONFIG) --libs liburing 2>/dev/null) +endif + ifeq ($(ARCH),) ifeq ($(CROSS_COMPILE),) @@ -55,10 +60,12 @@ else PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first" endif -TEST_GEN_FILES = cow -TEST_GEN_FILES += compaction_test -TEST_GEN_FILES += gup_longterm +TEST_GEN_FILES = compaction_test TEST_GEN_FILES += gup_test +ifneq ($(IOURING_EXTRA_LIBS),) +TEST_GEN_FILES += cow +TEST_GEN_FILES += gup_longterm +endif TEST_GEN_FILES += hmm-tests TEST_GEN_FILES += hugetlb-madvise TEST_GEN_FILES += hugetlb-read-hwpoison -- 2.53.0