The patch titled Subject: selftests: proc: fix proc-empty-vm build error on non x86_64 has been added to the -mm mm-nonmm-unstable branch. Its filename is selftests-proc-fix-proc-empty-vm-build-error-on-non-x86_64.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-proc-fix-proc-empty-vm-build-error-on-non-x86_64.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Punit Agrawal <punit.agrawal@xxxxxxxxxxxxx> Subject: selftests: proc: fix proc-empty-vm build error on non x86_64 Date: Wed, 9 Nov 2022 22:11:03 +0000 The proc-empty-vm test is implemented for x86_64 and fails to build for other architectures. Rather then emitting a compiler error it would be preferable to only build the test on supported architectures. Mark proc-empty-vm as a test for x86_64 and customise the Makefile to build it only when building for this target architecture. Link: https://lkml.kernel.org/r/20221109221104.1797802-1-punit.agrawal@xxxxxxxxxxxxx Fixes: 5bc73bb3451b ("proc: test how it holds up with mapping'less process") Signed-off-by: Punit Agrawal <punit.agrawal@xxxxxxxxxxxxx> Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/proc/Makefile | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/tools/testing/selftests/proc/Makefile~selftests-proc-fix-proc-empty-vm-build-error-on-non-x86_64 +++ a/tools/testing/selftests/proc/Makefile @@ -1,14 +1,16 @@ # SPDX-License-Identifier: GPL-2.0-only + +# When ARCH not overridden for crosscompiling, lookup machine +ARCH ?= $(shell uname -m 2>/dev/null || echo not) + CFLAGS += -Wall -O2 -Wno-unused-function CFLAGS += -D_GNU_SOURCE LDFLAGS += -pthread -TEST_GEN_PROGS := TEST_GEN_PROGS += fd-001-lookup TEST_GEN_PROGS += fd-002-posix-eq TEST_GEN_PROGS += fd-003-kthread TEST_GEN_PROGS += proc-loadavg-001 -TEST_GEN_PROGS += proc-empty-vm TEST_GEN_PROGS += proc-pid-vm TEST_GEN_PROGS += proc-self-map-files-001 TEST_GEN_PROGS += proc-self-map-files-002 @@ -26,4 +28,8 @@ TEST_GEN_PROGS += thread-self TEST_GEN_PROGS += proc-multiple-procfs TEST_GEN_PROGS += proc-fsconfig-hidepid +TEST_GEN_PROGS_x86_64 += proc-empty-vm + +TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(ARCH)) + include ../lib.mk _ Patches currently in -mm which might be from punit.agrawal@xxxxxxxxxxxxx are selftests-proc-fix-proc-empty-vm-build-error-on-non-x86_64.patch selftests-proc-mark-proc-pid-vm-as-x86_64-only.patch