- Linux-kselftest-mirror - lists.linaro.org

[PATCH] lib: Move KUnit tests into tests/ subdirectory

by Kees Cook

Following from the recent KUnit file naming discussion[1], move all KUnit tests in lib/ into lib/tests/. Link: https://lore.kernel.org/lkml/20240720165441.it.320-kees@kernel.org/ [1] Signed-off-by: Kees Cook <kees(a)kernel.org> --- I can carry this in the hardening tree. To disrupt people as little as possible, I'm hoping to send this either at the end of -rc1 or early in -rc2. Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: Yury Norov <yury.norov(a)gmail.com> Cc: Rasmus Villemoes <linux(a)rasmusvillemoes.dk> Cc: David Gow <davidgow(a)google.com> Cc: "Jason A. Donenfeld" <Jason(a)zx2c4.com> Cc: Andy Shevchenko <andy(a)kernel.org> Cc: "Naveen N. Rao" <naveen.n.rao(a)linux.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy(a)intel.com> Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mark Brown <broonie(a)kernel.org> Cc: Matti Vaittinen <mazziesaccount(a)gmail.com> Cc: linux-hardening(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Cc: kunit-dev(a)googlegroups.com Cc: linux-trace-kernel(a)vger.kernel.org --- MAINTAINERS | 18 ++++++------- lib/Makefile | 35 +----------------------- lib/tests/Makefile | 37 ++++++++++++++++++++++++++ lib/{ => tests}/bitfield_kunit.c | 0 lib/{ => tests}/checksum_kunit.c | 0 lib/{ => tests}/cmdline_kunit.c | 0 lib/{ => tests}/cpumask_kunit.c | 0 lib/{ => tests}/fortify_kunit.c | 0 lib/{ => tests}/hashtable_test.c | 0 lib/{ => tests}/is_signed_type_kunit.c | 0 lib/{ => tests}/kunit_iov_iter.c | 0 lib/{ => tests}/list-test.c | 0 lib/{ => tests}/memcpy_kunit.c | 0 lib/{ => tests}/overflow_kunit.c | 0 lib/{ => tests}/siphash_kunit.c | 0 lib/{ => tests}/slub_kunit.c | 0 lib/{ => tests}/stackinit_kunit.c | 0 lib/{ => tests}/string_helpers_kunit.c | 0 lib/{ => tests}/string_kunit.c | 0 lib/{ => tests}/test_bits.c | 0 lib/{ => tests}/test_fprobe.c | 0 lib/{ => tests}/test_hash.c | 0 lib/{ => tests}/test_kprobes.c | 0 lib/{ => tests}/test_linear_ranges.c | 0 lib/{ => tests}/test_list_sort.c | 0 lib/{ => tests}/test_sort.c | 0 26 files changed, 47 insertions(+), 43 deletions(-) create mode 100644 lib/tests/Makefile rename lib/{ => tests}/bitfield_kunit.c (100%) rename lib/{ => tests}/checksum_kunit.c (100%) rename lib/{ => tests}/cmdline_kunit.c (100%) rename lib/{ => tests}/cpumask_kunit.c (100%) rename lib/{ => tests}/fortify_kunit.c (100%) rename lib/{ => tests}/hashtable_test.c (100%) rename lib/{ => tests}/is_signed_type_kunit.c (100%) rename lib/{ => tests}/kunit_iov_iter.c (100%) rename lib/{ => tests}/list-test.c (100%) rename lib/{ => tests}/memcpy_kunit.c (100%) rename lib/{ => tests}/overflow_kunit.c (100%) rename lib/{ => tests}/siphash_kunit.c (100%) rename lib/{ => tests}/slub_kunit.c (100%) rename lib/{ => tests}/stackinit_kunit.c (100%) rename lib/{ => tests}/string_helpers_kunit.c (100%) rename lib/{ => tests}/string_kunit.c (100%) rename lib/{ => tests}/test_bits.c (100%) rename lib/{ => tests}/test_fprobe.c (100%) rename lib/{ => tests}/test_hash.c (100%) rename lib/{ => tests}/test_kprobes.c (100%) rename lib/{ => tests}/test_linear_ranges.c (100%) rename lib/{ => tests}/test_list_sort.c (100%) rename lib/{ => tests}/test_sort.c (100%) diff --git a/MAINTAINERS b/MAINTAINERS index 8754ac2c259d..3f4b9d007cbb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3737,10 +3737,10 @@ F: include/vdso/bits.h F: lib/bitmap-str.c F: lib/bitmap.c F: lib/cpumask.c -F: lib/cpumask_kunit.c F: lib/find_bit.c F: lib/find_bit_benchmark.c F: lib/test_bitmap.c +F: lib/tests/cpumask_kunit.c F: tools/include/linux/bitfield.h F: tools/include/linux/bitmap.h F: tools/include/linux/bits.h @@ -8618,9 +8618,9 @@ L: linux-hardening(a)vger.kernel.org S: Supported T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening F: include/linux/fortify-string.h -F: lib/fortify_kunit.c -F: lib/memcpy_kunit.c F: lib/test_fortify/* +F: lib/tests/fortify_kunit.c +F: lib/tests/memcpy_kunit.c F: scripts/test_fortify.sh K: \b__NO_FORTIFY\b @@ -9246,9 +9246,9 @@ F: include/linux/string.h F: include/linux/string_choices.h F: include/linux/string_helpers.h F: lib/string.c -F: lib/string_kunit.c F: lib/string_helpers.c -F: lib/string_helpers_kunit.c +F: lib/tests/string_helpers_kunit.c +F: lib/tests/string_kunit.c F: scripts/coccinelle/api/string_choices.cocci GENERIC UIO DRIVER FOR PCI DEVICES @@ -12347,7 +12347,7 @@ F: Documentation/trace/kprobes.rst F: include/asm-generic/kprobes.h F: include/linux/kprobes.h F: kernel/kprobes.c -F: lib/test_kprobes.c +F: lib/tests/test_kprobes.c F: samples/kprobes KS0108 LCD CONTROLLER DRIVER @@ -12697,7 +12697,7 @@ M: Mark Brown <broonie(a)kernel.org> R: Matti Vaittinen <mazziesaccount(a)gmail.com> F: include/linux/linear_range.h F: lib/linear_ranges.c -F: lib/test_linear_ranges.c +F: lib/tests/test_linear_ranges.c LINUX FOR POWER MACINTOSH L: linuxppc-dev(a)lists.ozlabs.org @@ -12824,7 +12824,7 @@ M: David Gow <davidgow(a)google.com> L: linux-kselftest(a)vger.kernel.org L: kunit-dev(a)googlegroups.com S: Maintained -F: lib/list-test.c +F: lib/tests/list-test.c LITEX PLATFORM M: Karol Gugala <kgugala(a)antmicro.com> @@ -20498,7 +20498,7 @@ M: Jason A. Donenfeld <Jason(a)zx2c4.com> S: Maintained F: include/linux/siphash.h F: lib/siphash.c -F: lib/siphash_kunit.c +F: lib/tests/siphash_kunit.c SIS 190 ETHERNET DRIVER M: Francois Romieu <romieu(a)fr.zoreil.com> diff --git a/lib/Makefile b/lib/Makefile index 3b1769045651..f00fe120ee9e 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -49,9 +49,7 @@ obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \ percpu-refcount.o rhashtable.o base64.o \ once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \ generic-radix-tree.o bitmap-str.o -obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o obj-y += string_helpers.o -obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o obj-y += hexdump.o obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o obj-y += kstrtox.o @@ -62,22 +60,17 @@ obj-$(CONFIG_TEST_DHRY) += test_dhry.o obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o obj-$(CONFIG_TEST_BITOPS) += test_bitops.o CFLAGS_test_bitops.o += -Werror -obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o -obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o -obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o obj-$(CONFIG_TEST_IDA) += test_ida.o obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o -obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o obj-$(CONFIG_TEST_LKM) += test_module.o obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o -obj-$(CONFIG_TEST_SORT) += test_sort.o obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o @@ -104,10 +97,7 @@ obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o obj-$(CONFIG_TEST_HMM) += test_hmm.o obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o -obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o -CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE) -obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o obj-$(CONFIG_TEST_OBJPOOL) += test_objpool.o obj-$(CONFIG_TEST_FPU) += test_fpu.o @@ -129,7 +119,7 @@ endif obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any) -obj-y += math/ crypto/ +obj-y += math/ crypto/ tests/ obj-$(CONFIG_GENERIC_IOMAP) += iomap.o obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o @@ -366,29 +356,6 @@ obj-$(CONFIG_OBJAGG) += objagg.o # pldmfw library obj-$(CONFIG_PLDMFW) += pldmfw/ -# KUnit tests -CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN) -obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o -obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o -obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o -obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o -obj-$(CONFIG_BITS_TEST) += test_bits.o -obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o -obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o -obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o -obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o -CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare) -obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o -CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable) -obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o -CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced) -CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread) -CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation) -CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN) -obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o -obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o - obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o obj-$(CONFIG_FIRMWARE_TABLE) += fw_table.o diff --git a/lib/tests/Makefile b/lib/tests/Makefile new file mode 100644 index 000000000000..c6a14cc8663e --- /dev/null +++ b/lib/tests/Makefile @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for tests of kernel library functions. + +# KUnit tests +CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN) +obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o +obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o +obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o +obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o +CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced) +CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread) +CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation) +CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN) +obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o +CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE) +obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o +obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o +obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o +obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o +obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o +obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o +obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o +obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o +CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare) +obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o +obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o +obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o +obj-$(CONFIG_TEST_SORT) += test_sort.o +CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable) +obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o +obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o +obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o + diff --git a/lib/bitfield_kunit.c b/lib/tests/bitfield_kunit.c similarity index 100% rename from lib/bitfield_kunit.c rename to lib/tests/bitfield_kunit.c diff --git a/lib/checksum_kunit.c b/lib/tests/checksum_kunit.c similarity index 100% rename from lib/checksum_kunit.c rename to lib/tests/checksum_kunit.c diff --git a/lib/cmdline_kunit.c b/lib/tests/cmdline_kunit.c similarity index 100% rename from lib/cmdline_kunit.c rename to lib/tests/cmdline_kunit.c diff --git a/lib/cpumask_kunit.c b/lib/tests/cpumask_kunit.c similarity index 100% rename from lib/cpumask_kunit.c rename to lib/tests/cpumask_kunit.c diff --git a/lib/fortify_kunit.c b/lib/tests/fortify_kunit.c similarity index 100% rename from lib/fortify_kunit.c rename to lib/tests/fortify_kunit.c diff --git a/lib/hashtable_test.c b/lib/tests/hashtable_test.c similarity index 100% rename from lib/hashtable_test.c rename to lib/tests/hashtable_test.c diff --git a/lib/is_signed_type_kunit.c b/lib/tests/is_signed_type_kunit.c similarity index 100% rename from lib/is_signed_type_kunit.c rename to lib/tests/is_signed_type_kunit.c diff --git a/lib/kunit_iov_iter.c b/lib/tests/kunit_iov_iter.c similarity index 100% rename from lib/kunit_iov_iter.c rename to lib/tests/kunit_iov_iter.c diff --git a/lib/list-test.c b/lib/tests/list-test.c similarity index 100% rename from lib/list-test.c rename to lib/tests/list-test.c diff --git a/lib/memcpy_kunit.c b/lib/tests/memcpy_kunit.c similarity index 100% rename from lib/memcpy_kunit.c rename to lib/tests/memcpy_kunit.c diff --git a/lib/overflow_kunit.c b/lib/tests/overflow_kunit.c similarity index 100% rename from lib/overflow_kunit.c rename to lib/tests/overflow_kunit.c diff --git a/lib/siphash_kunit.c b/lib/tests/siphash_kunit.c similarity index 100% rename from lib/siphash_kunit.c rename to lib/tests/siphash_kunit.c diff --git a/lib/slub_kunit.c b/lib/tests/slub_kunit.c similarity index 100% rename from lib/slub_kunit.c rename to lib/tests/slub_kunit.c diff --git a/lib/stackinit_kunit.c b/lib/tests/stackinit_kunit.c similarity index 100% rename from lib/stackinit_kunit.c rename to lib/tests/stackinit_kunit.c diff --git a/lib/string_helpers_kunit.c b/lib/tests/string_helpers_kunit.c similarity index 100% rename from lib/string_helpers_kunit.c rename to lib/tests/string_helpers_kunit.c diff --git a/lib/string_kunit.c b/lib/tests/string_kunit.c similarity index 100% rename from lib/string_kunit.c rename to lib/tests/string_kunit.c diff --git a/lib/test_bits.c b/lib/tests/test_bits.c similarity index 100% rename from lib/test_bits.c rename to lib/tests/test_bits.c diff --git a/lib/test_fprobe.c b/lib/tests/test_fprobe.c similarity index 100% rename from lib/test_fprobe.c rename to lib/tests/test_fprobe.c diff --git a/lib/test_hash.c b/lib/tests/test_hash.c similarity index 100% rename from lib/test_hash.c rename to lib/tests/test_hash.c diff --git a/lib/test_kprobes.c b/lib/tests/test_kprobes.c similarity index 100% rename from lib/test_kprobes.c rename to lib/tests/test_kprobes.c diff --git a/lib/test_linear_ranges.c b/lib/tests/test_linear_ranges.c similarity index 100% rename from lib/test_linear_ranges.c rename to lib/tests/test_linear_ranges.c diff --git a/lib/test_list_sort.c b/lib/tests/test_list_sort.c similarity index 100% rename from lib/test_list_sort.c rename to lib/tests/test_list_sort.c diff --git a/lib/test_sort.c b/lib/tests/test_sort.c similarity index 100% rename from lib/test_sort.c rename to lib/tests/test_sort.c -- 2.34.1

1 year

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[PATCH v2 0/1] Add KUnit tests for kfifo

by Diego Vieira

Hi all, This is part of a hackathon organized by LKCAMP [1], focused on writing tests using KUnit. We reached out a while ago asking for advice on what would be a useful contribution [2] and ended up choosing data structures that did not yet have tests. This patch series depends on the patch that moves the KUnit tests on lib/ into lib/tests/ [3]. This patch adds tests for the kfifo data structure, defined in include/linux/kfifo.h, and is inspired by the KUnit tests for the doubly linked list in lib/tests/list-test.c (previously at lib/list-test.c) [4]. [1] https://lkcamp.dev/about/ [2] https://lore.kernel.org/all/Zktnt7rjKryTh9-N@arch/ [3] https://lore.kernel.org/all/20240720181025.work.002-kees@kernel.org/ [4] https://elixir.bootlin.com/linux/latest/source/lib/list-test.c --- Changes in v2: - Add MODULE_DESCRIPTION() - Move the tests from lib/kfifo-test.c to lib/tests/kfifo_kunit.c Diego Vieira (1): lib/tests/kfifo_kunit.c: add tests for the kfifo structure lib/Kconfig.debug | 14 +++ lib/tests/Makefile | 1 + lib/tests/kfifo_kunit.c | 224 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 239 insertions(+) create mode 100644 lib/tests/kfifo_kunit.c -- 2.34.1

1 year

5
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[PATCH,bpf-next v2 0/4] selftests/bpf: migrate and remove cgroup/tracing related tests

by Daniel T. Lee

The BPF testing framework has evolved significantly over time. However, some legacy tests in the samples/bpf directory have not kept up with these changes. These outdated tests can cause confusion and increase maintenance efforts. This patchset focuses on migrating outdated cgroup and tracing-related tests from samples/bpf to selftests/bpf, ensuring the BPF test suite remains current and efficient. Tests that are already covered by selftests/bpf are removed, while those not yet covered are migrated. This includes cgroup sock create tests for setting socket attributes and blocking socket creation, as well as the removal of redundant cgroup and tracing tests that have been replaced by newer tests. This patchset covers the following cgroup/tracing tests: - test_overhead: tests the overhead of BPF programs with task_rename, now covered by selftests and benchmark tests (rename-*). [1] - test_override_return: tests the return override functionality, now handled by kprobe_multi_override in selftests. - test_probe_write_user: tests the probe_write_user functionality, now replaced by the probe_user test in selftests. - test_cgrp2_sock: tests cgroup BPF's ability to set sk_bound_dev_if, mark, and priority during socket creation. Migrated to selftests as 'sock_create' since no existing tests fully cover this. - test_cgrp2_sock2: tests blocking socket creation for specific types (AF_INET{6}, SOCK_DGRAM, IPPROTO_ICMP{V6}). Migrated to selftests in 'sock_create' test for coverage. - test_current_task_under_cgroup: tests bpf_current_task_under_cgroup() to check if a task belongs to a cgroup. Already covered by task_under_cgroup at selftest and other cgroup ID tests. - test_cgrp2_tc: tests bpf_skb_under_cgroup() to filter packets based on cgroup. This behavior is now validated by cgroup_skb_sk_lookup, which uses bpf_skb_cgroup_id, making this test redundant. [1]: https://patchwork.kernel.org/cover/13759916 Daniel T. Lee (4): selftests/bpf: migrate cgroup sock create test for setting iface/mark/prio selftests/bpf: migrate cgroup sock create tests for prohibitig sockets samples/bpf: remove obsolete cgroup related tests samples/bpf: remove obsolete tracing related tests --- Changes in v2: - commit message fix samples/bpf/Makefile | 24 -- samples/bpf/sock_flags.bpf.c | 47 --- samples/bpf/test_cgrp2_array_pin.c | 106 ------ samples/bpf/test_cgrp2_attach.c | 177 ---------- samples/bpf/test_cgrp2_sock.c | 296 ---------------- samples/bpf/test_cgrp2_sock.sh | 137 ------- samples/bpf/test_cgrp2_sock2.c | 95 ----- samples/bpf/test_cgrp2_sock2.sh | 103 ------ samples/bpf/test_cgrp2_tc.bpf.c | 56 --- samples/bpf/test_cgrp2_tc.sh | 187 ---------- .../bpf/test_current_task_under_cgroup.bpf.c | 43 --- .../bpf/test_current_task_under_cgroup_user.c | 115 ------ samples/bpf/test_overhead_kprobe.bpf.c | 41 --- samples/bpf/test_overhead_raw_tp.bpf.c | 17 - samples/bpf/test_overhead_tp.bpf.c | 23 -- samples/bpf/test_overhead_user.c | 225 ------------ samples/bpf/test_override_return.sh | 16 - samples/bpf/test_probe_write_user.bpf.c | 52 --- samples/bpf/test_probe_write_user_user.c | 108 ------ samples/bpf/tracex7.bpf.c | 15 - samples/bpf/tracex7_user.c | 56 --- .../selftests/bpf/prog_tests/sock_create.c | 333 ++++++++++++++++++ 22 files changed, 333 insertions(+), 1939 deletions(-) delete mode 100644 samples/bpf/sock_flags.bpf.c delete mode 100644 samples/bpf/test_cgrp2_array_pin.c delete mode 100644 samples/bpf/test_cgrp2_attach.c delete mode 100644 samples/bpf/test_cgrp2_sock.c delete mode 100755 samples/bpf/test_cgrp2_sock.sh delete mode 100644 samples/bpf/test_cgrp2_sock2.c delete mode 100755 samples/bpf/test_cgrp2_sock2.sh delete mode 100644 samples/bpf/test_cgrp2_tc.bpf.c delete mode 100755 samples/bpf/test_cgrp2_tc.sh delete mode 100644 samples/bpf/test_current_task_under_cgroup.bpf.c delete mode 100644 samples/bpf/test_current_task_under_cgroup_user.c delete mode 100644 samples/bpf/test_overhead_kprobe.bpf.c delete mode 100644 samples/bpf/test_overhead_raw_tp.bpf.c delete mode 100644 samples/bpf/test_overhead_tp.bpf.c delete mode 100644 samples/bpf/test_overhead_user.c delete mode 100755 samples/bpf/test_override_return.sh delete mode 100644 samples/bpf/test_probe_write_user.bpf.c delete mode 100644 samples/bpf/test_probe_write_user_user.c delete mode 100644 samples/bpf/tracex7.bpf.c delete mode 100644 samples/bpf/tracex7_user.c create mode 100644 tools/testing/selftests/bpf/prog_tests/sock_create.c -- 2.43.0

1 year

1
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[bpf-next 0/4] selftests/bpf: migrate and remove cgroup/tracing related tests

by Daniel T. Lee

The BPF testing framework has evolved significantly over time. However, some legacy tests in the samples/bpf directory have not kept up with these changes. These outdated tests can cause confusion and increase maintenance efforts. This patchset focuses on migrating outdated cgroup and tracing-related tests from samples/bpf to selftests/bpf, ensuring the BPF test suite remains current and efficient. Tests that are already covered by selftests/bpf are removed, while those not yet covered are migrated. This includes cgroup sock create tests for setting socket attributes and blocking socket creation, as well as the removal of redundant cgroup and tracing tests that have been replaced by newer tests. This patchset covers the following cgroup/tracing tests: - test_overhead: tests the overhead of BPF programs with task_rename, now covered by selftests and benchmark tests (rename-*). [1] - test_override_return: tests the return override functionality, now handled by kprobe_multi_override in selftests. - test_probe_write_user: tests the probe_write_user functionality, now replaced by the probe_user test in selftests. - test_cgrp2_sock: tests cgroup BPF's ability to set sk_bound_dev_if, mark, and priority during socket creation. Migrated to selftests as 'sock_create' since no existing tests fully cover this. - test_cgrp2_sock2: tests blocking socket creation for specific types (AF_INET{6}, SOCK_DGRAM, IPPROTO_ICMP{V6}). Migrated to selftests in 'sock_create' test for coverage. - test_current_task_under_cgroup: tests bpf_current_task_under_cgroup() to check if a task belongs to a cgroup. Already covered by task_under_cgroup at selftest and other cgroup ID tests. - test_cgrp2_tc: tests bpf_skb_under_cgroup() to filter packets based on cgroup. This behavior is now validated by cgroup_skb_sk_lookup, which uses bpf_skb_cgroup_id, making this test redundant. Daniel T. Lee (4): selftests/bpf: migrate cgroup sock create test for setting iface/mark/prio selftests/bpf: migrate sock create tests for prohibitig sockets samples/bpf: remove obsolete cgroup related tests samples/bpf: remove obsolete tracing related tests samples/bpf/Makefile | 24 -- samples/bpf/sock_flags.bpf.c | 47 --- samples/bpf/test_cgrp2_array_pin.c | 106 ------ samples/bpf/test_cgrp2_attach.c | 177 ---------- samples/bpf/test_cgrp2_sock.c | 296 ---------------- samples/bpf/test_cgrp2_sock.sh | 137 ------- samples/bpf/test_cgrp2_sock2.c | 95 ----- samples/bpf/test_cgrp2_sock2.sh | 103 ------ samples/bpf/test_cgrp2_tc.bpf.c | 56 --- samples/bpf/test_cgrp2_tc.sh | 187 ---------- .../bpf/test_current_task_under_cgroup.bpf.c | 43 --- .../bpf/test_current_task_under_cgroup_user.c | 115 ------ samples/bpf/test_overhead_kprobe.bpf.c | 41 --- samples/bpf/test_overhead_raw_tp.bpf.c | 17 - samples/bpf/test_overhead_tp.bpf.c | 23 -- samples/bpf/test_overhead_user.c | 225 ------------ samples/bpf/test_override_return.sh | 16 - samples/bpf/test_probe_write_user.bpf.c | 52 --- samples/bpf/test_probe_write_user_user.c | 108 ------ samples/bpf/tracex7.bpf.c | 15 - samples/bpf/tracex7_user.c | 56 --- .../selftests/bpf/prog_tests/sock_create.c | 333 ++++++++++++++++++ 22 files changed, 333 insertions(+), 1939 deletions(-) delete mode 100644 samples/bpf/sock_flags.bpf.c delete mode 100644 samples/bpf/test_cgrp2_array_pin.c delete mode 100644 samples/bpf/test_cgrp2_attach.c delete mode 100644 samples/bpf/test_cgrp2_sock.c delete mode 100755 samples/bpf/test_cgrp2_sock.sh delete mode 100644 samples/bpf/test_cgrp2_sock2.c delete mode 100755 samples/bpf/test_cgrp2_sock2.sh delete mode 100644 samples/bpf/test_cgrp2_tc.bpf.c delete mode 100755 samples/bpf/test_cgrp2_tc.sh delete mode 100644 samples/bpf/test_current_task_under_cgroup.bpf.c delete mode 100644 samples/bpf/test_current_task_under_cgroup_user.c delete mode 100644 samples/bpf/test_overhead_kprobe.bpf.c delete mode 100644 samples/bpf/test_overhead_raw_tp.bpf.c delete mode 100644 samples/bpf/test_overhead_tp.bpf.c delete mode 100644 samples/bpf/test_overhead_user.c delete mode 100755 samples/bpf/test_override_return.sh delete mode 100644 samples/bpf/test_probe_write_user.bpf.c delete mode 100644 samples/bpf/test_probe_write_user_user.c delete mode 100644 samples/bpf/tracex7.bpf.c delete mode 100644 samples/bpf/tracex7_user.c create mode 100644 tools/testing/selftests/bpf/prog_tests/sock_create.c -- 2.43.0

1 year

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[PATCH] selftests/bpf: Removed redundant fd after close in bpf_prog_load_log_buf

by Zhu Jun

Removed unnecessary `fd = -1` assignments after closing file descriptors. because it will be assigned by the function bpf_prog_load().This improves code readability and removes redundant operations. Signed-off-by: Zhu Jun <zhujun2(a)cmss.chinamobile.com> --- tools/testing/selftests/bpf/prog_tests/log_buf.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/log_buf.c b/tools/testing/selftests/bpf/prog_tests/log_buf.c index 27676a04d0b6..169ce689b97c 100644 --- a/tools/testing/selftests/bpf/prog_tests/log_buf.c +++ b/tools/testing/selftests/bpf/prog_tests/log_buf.c @@ -169,7 +169,6 @@ static void bpf_prog_load_log_buf(void) ASSERT_GE(fd, 0, "good_fd1"); if (fd >= 0) close(fd); - fd = -1; /* log_level == 2 should always fill log_buf, even for good prog */ log_buf[0] = '\0'; @@ -180,7 +179,6 @@ static void bpf_prog_load_log_buf(void) ASSERT_GE(fd, 0, "good_fd2"); if (fd >= 0) close(fd); - fd = -1; /* log_level == 0 should fill log_buf for bad prog */ log_buf[0] = '\0'; @@ -191,7 +189,6 @@ static void bpf_prog_load_log_buf(void) ASSERT_LT(fd, 0, "bad_fd"); if (fd >= 0) close(fd); - fd = -1; free(log_buf); } -- 2.17.1

1 year

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[PATCH bpf v1] selftests/bpf: Fix cross-compiling urandom_read

by Tony Ambardar

Linking of urandom_read and liburandom_read.so prefers LLVM's 'ld.lld' but falls back to using 'ld' if unsupported. However, this fallback discards any existing makefile macro for LD and can break cross-compilation. Fix by changing the fallback to use the target linker $(LD), passed via '-fuse-ld=' using an absolute path rather than a linker "flavour". Fixes: 08c79c9cd67f ("selftests/bpf: Don't force lld on non-x86 architectures") Signed-off-by: Tony Ambardar <tony.ambardar(a)gmail.com> --- tools/testing/selftests/bpf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 5e366f2fc02a..f2a0f912e038 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -263,7 +263,7 @@ $(OUTPUT)/%:%.c ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) LLD := lld else -LLD := ld +LLD := $(shell command -v $(LD)) endif # Filter out -static for liburandom_read.so and its dependent targets so that static builds -- 2.34.1

1 year

2
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[PATCH bpf v1 1/2] bpf: fix unpopulated path_size when uprobe_multi fields unset

by Tyrone Wu

Previously when retrieving `bpf_link_info.uprobe_multi` with `path` and `path_size` fields unset, the `path_size` field is not populated (remains 0). This behavior was inconsistent with how other input/output string buffer fields work, as the field should be populated in cases when: - both buffer and length are set (currently works as expected) - both buffer and length are unset (not working as expected) This patch now fills the `path_size` field when `path` and `path_size` are unset. Fixes: e56fdbfb06e2 ("bpf: Add link_info support for uprobe multi link") Signed-off-by: Tyrone Wu <wudevelops(a)gmail.com> --- kernel/trace/bpf_trace.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index a582cd25ca87..ba34e4f3fa8f 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -3133,7 +3133,8 @@ static int bpf_uprobe_multi_link_fill_link_info(const struct bpf_link *link, struct bpf_uprobe_multi_link *umulti_link; u32 ucount = info->uprobe_multi.count; int err = 0, i; - long left; + char *p, *buf; + long left = 0; if (!upath ^ !upath_size) return -EINVAL; @@ -3147,26 +3148,24 @@ static int bpf_uprobe_multi_link_fill_link_info(const struct bpf_link *link, info->uprobe_multi.pid = umulti_link->task ? task_pid_nr_ns(umulti_link->task, task_active_pid_ns(current)) : 0; - if (upath) { - char *p, *buf; - - upath_size = min_t(u32, upath_size, PATH_MAX); + upath_size = upath_size ? min_t(u32, upath_size, PATH_MAX) : PATH_MAX; + buf = kmalloc(upath_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = d_path(&umulti_link->path, buf, upath_size); + if (IS_ERR(p)) { + kfree(buf); + return PTR_ERR(p); + } + upath_size = buf + upath_size - p; - buf = kmalloc(upath_size, GFP_KERNEL); - if (!buf) - return -ENOMEM; - p = d_path(&umulti_link->path, buf, upath_size); - if (IS_ERR(p)) { - kfree(buf); - return PTR_ERR(p); - } - upath_size = buf + upath_size - p; + if (upath) { left = copy_to_user(upath, p, upath_size); - kfree(buf); - if (left) - return -EFAULT; - info->uprobe_multi.path_size = upath_size; } + kfree(buf); + if (left) + return -EFAULT; + info->uprobe_multi.path_size = upath_size; if (!uoffsets && !ucookies && !uref_ctr_offsets) return 0; -- 2.43.0

1 year

3
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kselftest/fixes kselftest-cpufreq: 3 runs, 2 regressions (linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed)

by kernelci.org bot

kselftest/fixes kselftest-cpufreq: 3 runs, 2 regressions (linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 sun50i-a64-pine64-plus | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux_kselftest… Test: kselftest-cpufreq Tree: kselftest Branch: fixes Describe: linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: e26e42b5679edf8c1226970325366f962555e58f Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6708676e7a41ae1109c86861 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-12 (aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0) Plain log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… HTML log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bookworm-kselftest/2024031… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/6708676e7a41ae1109c86862 failing since 1 day (last pass: v6.12-rc1-5-g45a8897db67d4, first fail: linux_kselftest-fixes-6.12-rc2-4-g34d5b600172b) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ sun50i-a64-pine64-plus | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/67086a1a7942f7bc76c86875 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-12 (aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0) Plain log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… HTML log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bookworm-kselftest/2024031… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/67086a1a7942f7bc76c86876 failing since 1 day (last pass: v6.12-rc1-5-g45a8897db67d4, first fail: linux_kselftest-fixes-6.12-rc2-4-g34d5b600172b)

1 year

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kselftest/fixes kselftest-lib: 2 runs, 1 regressions (linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed)

by kernelci.org bot

kselftest/fixes kselftest-lib: 2 runs, 1 regressions (linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux_kselftest… Test: kselftest-lib Tree: kselftest Branch: fixes Describe: linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: e26e42b5679edf8c1226970325366f962555e58f Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/670867935b7b683c98c86855 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-12 (aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0) Plain log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… HTML log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bookworm-kselftest/2024031… * kselftest-lib.login: https://kernelci.org/test/case/id/670867935b7b683c98c86856 failing since 1 day (last pass: v6.12-rc1-5-g45a8897db67d4, first fail: linux_kselftest-fixes-6.12-rc2-4-g34d5b600172b)

1 year

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kselftest/fixes kselftest-seccomp: 2 runs, 1 regressions (linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed)

by kernelci.org bot

kselftest/fixes kselftest-seccomp: 2 runs, 1 regressions (linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux_kselftest… Test: kselftest-seccomp Tree: kselftest Branch: fixes Describe: linux_kselftest-fixes-6.12-rc2-6-ge26e42b5679ed URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: e26e42b5679edf8c1226970325366f962555e58f Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-12 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/670866b6913f5044d0c86896 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-12 (aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0) Plain log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… HTML log: https://storage.kernelci.org//kselftest/fixes/linux_kselftest-fixes-6.12-rc… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bookworm-kselftest/2024031… * kselftest-seccomp.login: https://kernelci.org/test/case/id/670866b6913f5044d0c86897 failing since 1 day (last pass: v6.12-rc1-5-g45a8897db67d4, first fail: linux_kselftest-fixes-6.12-rc2-4-g34d5b600172b)

1 year

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