February 2022 - Linux-kselftest-mirror

[PATCH] selftests/resctrl: Add missing SPDX license to Makefile

by Shaopeng Tan

Add the missing SPDX(SPDX-License-Identifier) license header to tools/testing/selftests/resctrl/Makefile. Signed-off-by: Shaopeng Tan <tan.shaopeng(a)jp.fujitsu.com> --- tools/testing/selftests/resctrl/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/resctrl/Makefile b/tools/testing/selftests/resctrl/Makefile index de26638540ba..d661eb2df19b 100644 --- a/tools/testing/selftests/resctrl/Makefile +++ b/tools/testing/selftests/resctrl/Makefile @@ -1,3 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 + CFLAGS += -g -Wall -O2 -D_FORTIFY_SOURCE=2 TEST_GEN_PROGS := resctrl_tests -- 2.27.0

2 years, 2 months

2
2
0 0

[PATCH] um: Allow builds with Clang

by Kees Cook

Add x86-64 target for Clang+um and update user-offsets.c to use Clang-friendly assembler, similar to the fix from commit cf0c3e68aa81 ("kbuild: fix asm-offset generation to work with clang"). This lets me run KUnit tests with Clang: $ ./tools/testing/kunit/kunit.py config --make_options LLVM=1 ... $ ./tools/testing/kunit/kunit.py run --make_options LLVM=1 ... Cc: Jeff Dike <jdike(a)addtoit.com> Cc: Richard Weinberger <richard(a)nod.at> Cc: Anton Ivanov <anton.ivanov(a)cambridgegreys.com> Cc: Masahiro Yamada <masahiroy(a)kernel.org> Cc: Nick Desaulniers <ndesaulniers(a)google.com> Cc: Nathan Chancellor <nathan(a)kernel.org> Cc: David Gow <davidgow(a)google.com> Cc: linux-um(a)lists.infradead.org Cc: linux-kbuild(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Cc: kunit-dev(a)googlegroups.com Cc: llvm(a)lists.linux.dev Signed-off-by: Kees Cook <keescook(a)chromium.org> --- arch/x86/um/user-offsets.c | 4 ++-- scripts/Makefile.clang | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c index bae61554abcc..d9071827b515 100644 --- a/arch/x86/um/user-offsets.c +++ b/arch/x86/um/user-offsets.c @@ -10,10 +10,10 @@ #include <asm/types.h> #define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + asm volatile("\n.ascii \"->" #sym " %0 " #val "\"": : "i" (val)) #define DEFINE_LONGS(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long))) + asm volatile("\n.ascii \"->" #sym " %0 " #val "\"": : "i" (val/sizeof(unsigned long))) void foo(void) { diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang index 51fc23e2e9e5..857b23de51c6 100644 --- a/scripts/Makefile.clang +++ b/scripts/Makefile.clang @@ -10,6 +10,7 @@ CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu +CLANG_TARGET_FLAGS_um := x86_64-linux-gnu CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(SRCARCH)) ifeq ($(CROSS_COMPILE),) -- 2.30.2

2 years, 3 months

4
5
0 0

[GIT PULL] Kselftest fixes update for Linux 5.17-rc5

by Shuah Khan

Hi Linus, Please pull the following Kselftest fixes update for Linux 5.17-rc5. This Kselftest fixes update for Linux 5.17-rc5 consists of fixes to ftrace, exec, and seccomp tests build, run-time and install bugs. These bugs are in the way of running the tests. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 183f80fd72db42c9cc483aa7a5e8e881355d0b03: selftests/ir: fix build with ancient kernel headers (2022-02-04 13:14:41 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-5.17-rc5 for you to fetch changes up to 6fec1ab67f8d60704cc7de64abcfd389ab131542: selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT (2022-02-14 13:28:17 -0700) ---------------------------------------------------------------- linux-kselftest-fixes-5.17-rc5 This Kselftest fixes update for Linux 5.17-rc5 consists of fixes to ftrace, exec, and seccomp tests build, run-time and install bugs. These bugs are in the way of running the tests. ---------------------------------------------------------------- Krzysztof Kozlowski (1): selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT Muhammad Usama Anjum (1): selftests/exec: Add non-regular to TEST_GEN_PROGS Sherry Yang (1): selftests/seccomp: Fix seccomp failure by adding missing headers tools/testing/selftests/exec/Makefile | 4 ++-- tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc | 2 +- tools/testing/selftests/seccomp/Makefile | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) ----------------------------------------------------------------

2 years, 3 months

2
1
0 0

[PATCH] lib: overflow: Convert to Kunit

by Kees Cook

Convert overflow unit tests to KUnit, for better integration into the kernel self test framework. Includes a rename of test_overflow.c to overflow_kunit.c, and CONFIG_TEST_OVERFLOW to CONFIG_OVERFLOW_KUNIT_TEST. $ ./tools/testing/kunit/kunit.py config ... $ ./tools/testing/kunit/kunit.py run overflow ... [14:33:51] Starting KUnit Kernel (1/1)... [14:33:51] ============================================================ [14:33:51] ================== overflow (11 subtests) ================== [14:33:51] [PASSED] u8_overflow_test [14:33:51] [PASSED] s8_overflow_test [14:33:51] [PASSED] u16_overflow_test [14:33:51] [PASSED] s16_overflow_test [14:33:51] [PASSED] u32_overflow_test [14:33:51] [PASSED] s32_overflow_test [14:33:51] [PASSED] u64_overflow_test [14:33:51] [PASSED] s64_overflow_test [14:33:51] [PASSED] overflow_shift_test [14:33:51] [PASSED] overflow_allocation_test [14:33:51] [PASSED] overflow_size_helpers_test [14:33:51] ==================== [PASSED] overflow ===================== [14:33:51] ============================================================ [14:33:51] Testing complete. Passed: 11, Failed: 0, Crashed: 0, Skipped: 0, Errors: 0 [14:33:51] Elapsed time: 12.525s total, 0.001s configuring, 12.402s building, 0.101s running Cc: David Gow <davidgow(a)google.com> Cc: Vitor Massaru Iha <vitor(a)massaru.org> Cc: Rasmus Villemoes <linux(a)rasmusvillemoes.dk> Cc: Nick Desaulniers <ndesaulniers(a)google.com> Co-developed-by: Vitor Massaru Iha <vitor(a)massaru.org> Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> Link: https://lore.kernel.org/lkml/20200720224418.200495-1-vitor@massaru.org/ Signed-off-by: Kees Cook <keescook(a)chromium.org> --- Assuming no one objects, I'll carry this in my for-next/overflow tree. :) --- lib/Kconfig.debug | 16 +- lib/Makefile | 2 +- lib/{test_overflow.c => overflow_kunit.c} | 562 ++++++++++------------ 3 files changed, 270 insertions(+), 310 deletions(-) rename lib/{test_overflow.c => overflow_kunit.c} (54%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 14b89aa37c5c..14d90d03bc8d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2214,9 +2214,6 @@ config TEST_UUID config TEST_XARRAY tristate "Test the XArray code at runtime" -config TEST_OVERFLOW - tristate "Test check_*_overflow() functions at runtime" - config TEST_RHASHTABLE tristate "Perform selftest on resizable hash table" help @@ -2501,6 +2498,19 @@ config MEMCPY_KUNIT_TEST If unsure, say N. +config OVERFLOW_KUNIT_TEST + tristate "Test check_*_overflow() functions at runtime" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Builds unit tests for the check_*_overflow(), size_*(), allocation, and + related functions. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index 300f569c626b..fdfcbfaff32f 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -77,7 +77,6 @@ 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-$(CONFIG_TEST_OVERFLOW) += test_overflow.o obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o obj-$(CONFIG_TEST_SORT) += test_sort.o obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o @@ -363,6 +362,7 @@ 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-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o diff --git a/lib/test_overflow.c b/lib/overflow_kunit.c similarity index 54% rename from lib/test_overflow.c rename to lib/overflow_kunit.c index f6530fce799d..4cc27b9926a1 100644 --- a/lib/test_overflow.c +++ b/lib/overflow_kunit.c @@ -1,9 +1,13 @@ // SPDX-License-Identifier: GPL-2.0 OR MIT /* - * Test cases for arithmetic overflow checks. + * Test cases for arithmetic overflow checks. See: + * https://www.kernel.org/doc/html/latest/dev-tools/kunit/kunit-tool.html#conf… + * ./tools/testing/kunit/kunit.py config + * ./tools/testing/kunit/kunit.py run overflow [--raw_output] */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <kunit/test.h> #include <linux/device.h> #include <linux/init.h> #include <linux/kernel.h> @@ -19,7 +23,7 @@ t a, b; \ t sum, diff, prod; \ bool s_of, d_of, p_of; \ - } t ## _tests[] __initconst + } t ## _tests[] DEFINE_TEST_ARRAY(u8) = { {0, 0, 0, 0, 0, false, false, false}, @@ -220,43 +224,31 @@ DEFINE_TEST_ARRAY(s64) = { bool _of; \ \ _of = check_ ## op ## _overflow(a, b, &_r); \ - if (_of != of) { \ - pr_warn("expected "fmt" "sym" "fmt \ - " to%s overflow (type %s)\n", \ - a, b, of ? "" : " not", #t); \ - err = 1; \ - } \ - if (_r != r) { \ - pr_warn("expected "fmt" "sym" "fmt" == " \ - fmt", got "fmt" (type %s)\n", \ - a, b, r, _r, #t); \ - err = 1; \ - } \ + KUNIT_EXPECT_EQ_MSG(test, _of, of, \ + "expected "fmt" "sym" "fmt" to%s overflow (type %s)\n", \ + a, b, of ? "" : " not", #t); \ + KUNIT_EXPECT_EQ_MSG(test, _r, r, \ + "expected "fmt" "sym" "fmt" == "fmt", got "fmt" (type %s)\n", \ + a, b, r, _r, #t); \ } while (0) #define DEFINE_TEST_FUNC(t, fmt) \ -static int __init do_test_ ## t(const struct test_ ## t *p) \ +static void do_test_ ## t(struct kunit *test, const struct test_ ## t *p) \ { \ - int err = 0; \ - \ check_one_op(t, fmt, add, "+", p->a, p->b, p->sum, p->s_of); \ check_one_op(t, fmt, add, "+", p->b, p->a, p->sum, p->s_of); \ check_one_op(t, fmt, sub, "-", p->a, p->b, p->diff, p->d_of); \ check_one_op(t, fmt, mul, "*", p->a, p->b, p->prod, p->p_of); \ check_one_op(t, fmt, mul, "*", p->b, p->a, p->prod, p->p_of); \ - \ - return err; \ } \ \ -static int __init test_ ## t ## _overflow(void) { \ - int err = 0; \ +static void t ## _overflow_test(struct kunit *test) { \ unsigned i; \ \ for (i = 0; i < ARRAY_SIZE(t ## _tests); ++i) \ - err |= do_test_ ## t(&t ## _tests[i]); \ - pr_info("%zu %s arithmetic tests finished\n", \ + do_test_ ## t(test, &t ## _tests[i]); \ + kunit_info(test, "%zu %s arithmetic tests finished\n", \ ARRAY_SIZE(t ## _tests), #t); \ - return err; \ } DEFINE_TEST_FUNC(u8, "%d"); @@ -270,198 +262,176 @@ DEFINE_TEST_FUNC(u64, "%llu"); DEFINE_TEST_FUNC(s64, "%lld"); #endif -static int __init test_overflow_calculation(void) -{ - int err = 0; - - err |= test_u8_overflow(); - err |= test_s8_overflow(); - err |= test_u16_overflow(); - err |= test_s16_overflow(); - err |= test_u32_overflow(); - err |= test_s32_overflow(); -#if BITS_PER_LONG == 64 - err |= test_u64_overflow(); - err |= test_s64_overflow(); -#endif - - return err; -} - -static int __init test_overflow_shift(void) +static void overflow_shift_test(struct kunit *test) { - int err = 0; int count = 0; /* Args are: value, shift, type, expected result, overflow expected */ -#define TEST_ONE_SHIFT(a, s, t, expect, of) ({ \ - int __failed = 0; \ +#define TEST_ONE_SHIFT(a, s, t, expect, of) do { \ typeof(a) __a = (a); \ typeof(s) __s = (s); \ t __e = (expect); \ t __d; \ bool __of = check_shl_overflow(__a, __s, &__d); \ if (__of != of) { \ - pr_warn("expected (%s)(%s << %s) to%s overflow\n", \ + KUNIT_EXPECT_EQ_MSG(test, __of, of, \ + "expected (%s)(%s << %s) to%s overflow\n", \ #t, #a, #s, of ? "" : " not"); \ - __failed = 1; \ } else if (!__of && __d != __e) { \ - pr_warn("expected (%s)(%s << %s) == %s\n", \ + KUNIT_EXPECT_EQ_MSG(test, __d, __e, \ + "expected (%s)(%s << %s) == %s\n", \ #t, #a, #s, #expect); \ if ((t)-1 < 0) \ - pr_warn("got %lld\n", (s64)__d); \ + kunit_info(test, "got %lld\n", (s64)__d); \ else \ - pr_warn("got %llu\n", (u64)__d); \ - __failed = 1; \ + kunit_info(test, "got %llu\n", (u64)__d); \ } \ count++; \ - __failed; \ -}) +} while (0) /* Sane shifts. */ - err |= TEST_ONE_SHIFT(1, 0, u8, 1 << 0, false); - err |= TEST_ONE_SHIFT(1, 4, u8, 1 << 4, false); - err |= TEST_ONE_SHIFT(1, 7, u8, 1 << 7, false); - err |= TEST_ONE_SHIFT(0xF, 4, u8, 0xF << 4, false); - err |= TEST_ONE_SHIFT(1, 0, u16, 1 << 0, false); - err |= TEST_ONE_SHIFT(1, 10, u16, 1 << 10, false); - err |= TEST_ONE_SHIFT(1, 15, u16, 1 << 15, false); - err |= TEST_ONE_SHIFT(0xFF, 8, u16, 0xFF << 8, false); - err |= TEST_ONE_SHIFT(1, 0, int, 1 << 0, false); - err |= TEST_ONE_SHIFT(1, 16, int, 1 << 16, false); - err |= TEST_ONE_SHIFT(1, 30, int, 1 << 30, false); - err |= TEST_ONE_SHIFT(1, 0, s32, 1 << 0, false); - err |= TEST_ONE_SHIFT(1, 16, s32, 1 << 16, false); - err |= TEST_ONE_SHIFT(1, 30, s32, 1 << 30, false); - err |= TEST_ONE_SHIFT(1, 0, unsigned int, 1U << 0, false); - err |= TEST_ONE_SHIFT(1, 20, unsigned int, 1U << 20, false); - err |= TEST_ONE_SHIFT(1, 31, unsigned int, 1U << 31, false); - err |= TEST_ONE_SHIFT(0xFFFFU, 16, unsigned int, 0xFFFFU << 16, false); - err |= TEST_ONE_SHIFT(1, 0, u32, 1U << 0, false); - err |= TEST_ONE_SHIFT(1, 20, u32, 1U << 20, false); - err |= TEST_ONE_SHIFT(1, 31, u32, 1U << 31, false); - err |= TEST_ONE_SHIFT(0xFFFFU, 16, u32, 0xFFFFU << 16, false); - err |= TEST_ONE_SHIFT(1, 0, u64, 1ULL << 0, false); - err |= TEST_ONE_SHIFT(1, 40, u64, 1ULL << 40, false); - err |= TEST_ONE_SHIFT(1, 63, u64, 1ULL << 63, false); - err |= TEST_ONE_SHIFT(0xFFFFFFFFULL, 32, u64, - 0xFFFFFFFFULL << 32, false); + TEST_ONE_SHIFT(1, 0, u8, 1 << 0, false); + TEST_ONE_SHIFT(1, 4, u8, 1 << 4, false); + TEST_ONE_SHIFT(1, 7, u8, 1 << 7, false); + TEST_ONE_SHIFT(0xF, 4, u8, 0xF << 4, false); + TEST_ONE_SHIFT(1, 0, u16, 1 << 0, false); + TEST_ONE_SHIFT(1, 10, u16, 1 << 10, false); + TEST_ONE_SHIFT(1, 15, u16, 1 << 15, false); + TEST_ONE_SHIFT(0xFF, 8, u16, 0xFF << 8, false); + TEST_ONE_SHIFT(1, 0, int, 1 << 0, false); + TEST_ONE_SHIFT(1, 16, int, 1 << 16, false); + TEST_ONE_SHIFT(1, 30, int, 1 << 30, false); + TEST_ONE_SHIFT(1, 0, s32, 1 << 0, false); + TEST_ONE_SHIFT(1, 16, s32, 1 << 16, false); + TEST_ONE_SHIFT(1, 30, s32, 1 << 30, false); + TEST_ONE_SHIFT(1, 0, unsigned int, 1U << 0, false); + TEST_ONE_SHIFT(1, 20, unsigned int, 1U << 20, false); + TEST_ONE_SHIFT(1, 31, unsigned int, 1U << 31, false); + TEST_ONE_SHIFT(0xFFFFU, 16, unsigned int, 0xFFFFU << 16, false); + TEST_ONE_SHIFT(1, 0, u32, 1U << 0, false); + TEST_ONE_SHIFT(1, 20, u32, 1U << 20, false); + TEST_ONE_SHIFT(1, 31, u32, 1U << 31, false); + TEST_ONE_SHIFT(0xFFFFU, 16, u32, 0xFFFFU << 16, false); + TEST_ONE_SHIFT(1, 0, u64, 1ULL << 0, false); + TEST_ONE_SHIFT(1, 40, u64, 1ULL << 40, false); + TEST_ONE_SHIFT(1, 63, u64, 1ULL << 63, false); + TEST_ONE_SHIFT(0xFFFFFFFFULL, 32, u64, 0xFFFFFFFFULL << 32, false); /* Sane shift: start and end with 0, without a too-wide shift. */ - err |= TEST_ONE_SHIFT(0, 7, u8, 0, false); - err |= TEST_ONE_SHIFT(0, 15, u16, 0, false); - err |= TEST_ONE_SHIFT(0, 31, unsigned int, 0, false); - err |= TEST_ONE_SHIFT(0, 31, u32, 0, false); - err |= TEST_ONE_SHIFT(0, 63, u64, 0, false); + TEST_ONE_SHIFT(0, 7, u8, 0, false); + TEST_ONE_SHIFT(0, 15, u16, 0, false); + TEST_ONE_SHIFT(0, 31, unsigned int, 0, false); + TEST_ONE_SHIFT(0, 31, u32, 0, false); + TEST_ONE_SHIFT(0, 63, u64, 0, false); /* Sane shift: start and end with 0, without reaching signed bit. */ - err |= TEST_ONE_SHIFT(0, 6, s8, 0, false); - err |= TEST_ONE_SHIFT(0, 14, s16, 0, false); - err |= TEST_ONE_SHIFT(0, 30, int, 0, false); - err |= TEST_ONE_SHIFT(0, 30, s32, 0, false); - err |= TEST_ONE_SHIFT(0, 62, s64, 0, false); + TEST_ONE_SHIFT(0, 6, s8, 0, false); + TEST_ONE_SHIFT(0, 14, s16, 0, false); + TEST_ONE_SHIFT(0, 30, int, 0, false); + TEST_ONE_SHIFT(0, 30, s32, 0, false); + TEST_ONE_SHIFT(0, 62, s64, 0, false); /* Overflow: shifted the bit off the end. */ - err |= TEST_ONE_SHIFT(1, 8, u8, 0, true); - err |= TEST_ONE_SHIFT(1, 16, u16, 0, true); - err |= TEST_ONE_SHIFT(1, 32, unsigned int, 0, true); - err |= TEST_ONE_SHIFT(1, 32, u32, 0, true); - err |= TEST_ONE_SHIFT(1, 64, u64, 0, true); + TEST_ONE_SHIFT(1, 8, u8, 0, true); + TEST_ONE_SHIFT(1, 16, u16, 0, true); + TEST_ONE_SHIFT(1, 32, unsigned int, 0, true); + TEST_ONE_SHIFT(1, 32, u32, 0, true); + TEST_ONE_SHIFT(1, 64, u64, 0, true); /* Overflow: shifted into the signed bit. */ - err |= TEST_ONE_SHIFT(1, 7, s8, 0, true); - err |= TEST_ONE_SHIFT(1, 15, s16, 0, true); - err |= TEST_ONE_SHIFT(1, 31, int, 0, true); - err |= TEST_ONE_SHIFT(1, 31, s32, 0, true); - err |= TEST_ONE_SHIFT(1, 63, s64, 0, true); + TEST_ONE_SHIFT(1, 7, s8, 0, true); + TEST_ONE_SHIFT(1, 15, s16, 0, true); + TEST_ONE_SHIFT(1, 31, int, 0, true); + TEST_ONE_SHIFT(1, 31, s32, 0, true); + TEST_ONE_SHIFT(1, 63, s64, 0, true); /* Overflow: high bit falls off unsigned types. */ /* 10010110 */ - err |= TEST_ONE_SHIFT(150, 1, u8, 0, true); + TEST_ONE_SHIFT(150, 1, u8, 0, true); /* 1000100010010110 */ - err |= TEST_ONE_SHIFT(34966, 1, u16, 0, true); + TEST_ONE_SHIFT(34966, 1, u16, 0, true); /* 10000100000010001000100010010110 */ - err |= TEST_ONE_SHIFT(2215151766U, 1, u32, 0, true); - err |= TEST_ONE_SHIFT(2215151766U, 1, unsigned int, 0, true); + TEST_ONE_SHIFT(2215151766U, 1, u32, 0, true); + TEST_ONE_SHIFT(2215151766U, 1, unsigned int, 0, true); /* 1000001000010000010000000100000010000100000010001000100010010110 */ - err |= TEST_ONE_SHIFT(9372061470395238550ULL, 1, u64, 0, true); + TEST_ONE_SHIFT(9372061470395238550ULL, 1, u64, 0, true); /* Overflow: bit shifted into signed bit on signed types. */ /* 01001011 */ - err |= TEST_ONE_SHIFT(75, 1, s8, 0, true); + TEST_ONE_SHIFT(75, 1, s8, 0, true); /* 0100010001001011 */ - err |= TEST_ONE_SHIFT(17483, 1, s16, 0, true); + TEST_ONE_SHIFT(17483, 1, s16, 0, true); /* 01000010000001000100010001001011 */ - err |= TEST_ONE_SHIFT(1107575883, 1, s32, 0, true); - err |= TEST_ONE_SHIFT(1107575883, 1, int, 0, true); + TEST_ONE_SHIFT(1107575883, 1, s32, 0, true); + TEST_ONE_SHIFT(1107575883, 1, int, 0, true); /* 0100000100001000001000000010000001000010000001000100010001001011 */ - err |= TEST_ONE_SHIFT(4686030735197619275LL, 1, s64, 0, true); + TEST_ONE_SHIFT(4686030735197619275LL, 1, s64, 0, true); /* Overflow: bit shifted past signed bit on signed types. */ /* 01001011 */ - err |= TEST_ONE_SHIFT(75, 2, s8, 0, true); + TEST_ONE_SHIFT(75, 2, s8, 0, true); /* 0100010001001011 */ - err |= TEST_ONE_SHIFT(17483, 2, s16, 0, true); + TEST_ONE_SHIFT(17483, 2, s16, 0, true); /* 01000010000001000100010001001011 */ - err |= TEST_ONE_SHIFT(1107575883, 2, s32, 0, true); - err |= TEST_ONE_SHIFT(1107575883, 2, int, 0, true); + TEST_ONE_SHIFT(1107575883, 2, s32, 0, true); + TEST_ONE_SHIFT(1107575883, 2, int, 0, true); /* 0100000100001000001000000010000001000010000001000100010001001011 */ - err |= TEST_ONE_SHIFT(4686030735197619275LL, 2, s64, 0, true); + TEST_ONE_SHIFT(4686030735197619275LL, 2, s64, 0, true); /* Overflow: values larger than destination type. */ - err |= TEST_ONE_SHIFT(0x100, 0, u8, 0, true); - err |= TEST_ONE_SHIFT(0xFF, 0, s8, 0, true); - err |= TEST_ONE_SHIFT(0x10000U, 0, u16, 0, true); - err |= TEST_ONE_SHIFT(0xFFFFU, 0, s16, 0, true); - err |= TEST_ONE_SHIFT(0x100000000ULL, 0, u32, 0, true); - err |= TEST_ONE_SHIFT(0x100000000ULL, 0, unsigned int, 0, true); - err |= TEST_ONE_SHIFT(0xFFFFFFFFUL, 0, s32, 0, true); - err |= TEST_ONE_SHIFT(0xFFFFFFFFUL, 0, int, 0, true); - err |= TEST_ONE_SHIFT(0xFFFFFFFFFFFFFFFFULL, 0, s64, 0, true); + TEST_ONE_SHIFT(0x100, 0, u8, 0, true); + TEST_ONE_SHIFT(0xFF, 0, s8, 0, true); + TEST_ONE_SHIFT(0x10000U, 0, u16, 0, true); + TEST_ONE_SHIFT(0xFFFFU, 0, s16, 0, true); + TEST_ONE_SHIFT(0x100000000ULL, 0, u32, 0, true); + TEST_ONE_SHIFT(0x100000000ULL, 0, unsigned int, 0, true); + TEST_ONE_SHIFT(0xFFFFFFFFUL, 0, s32, 0, true); + TEST_ONE_SHIFT(0xFFFFFFFFUL, 0, int, 0, true); + TEST_ONE_SHIFT(0xFFFFFFFFFFFFFFFFULL, 0, s64, 0, true); /* Nonsense: negative initial value. */ - err |= TEST_ONE_SHIFT(-1, 0, s8, 0, true); - err |= TEST_ONE_SHIFT(-1, 0, u8, 0, true); - err |= TEST_ONE_SHIFT(-5, 0, s16, 0, true); - err |= TEST_ONE_SHIFT(-5, 0, u16, 0, true); - err |= TEST_ONE_SHIFT(-10, 0, int, 0, true); - err |= TEST_ONE_SHIFT(-10, 0, unsigned int, 0, true); - err |= TEST_ONE_SHIFT(-100, 0, s32, 0, true); - err |= TEST_ONE_SHIFT(-100, 0, u32, 0, true); - err |= TEST_ONE_SHIFT(-10000, 0, s64, 0, true); - err |= TEST_ONE_SHIFT(-10000, 0, u64, 0, true); + TEST_ONE_SHIFT(-1, 0, s8, 0, true); + TEST_ONE_SHIFT(-1, 0, u8, 0, true); + TEST_ONE_SHIFT(-5, 0, s16, 0, true); + TEST_ONE_SHIFT(-5, 0, u16, 0, true); + TEST_ONE_SHIFT(-10, 0, int, 0, true); + TEST_ONE_SHIFT(-10, 0, unsigned int, 0, true); + TEST_ONE_SHIFT(-100, 0, s32, 0, true); + TEST_ONE_SHIFT(-100, 0, u32, 0, true); + TEST_ONE_SHIFT(-10000, 0, s64, 0, true); + TEST_ONE_SHIFT(-10000, 0, u64, 0, true); /* Nonsense: negative shift values. */ - err |= TEST_ONE_SHIFT(0, -5, s8, 0, true); - err |= TEST_ONE_SHIFT(0, -5, u8, 0, true); - err |= TEST_ONE_SHIFT(0, -10, s16, 0, true); - err |= TEST_ONE_SHIFT(0, -10, u16, 0, true); - err |= TEST_ONE_SHIFT(0, -15, int, 0, true); - err |= TEST_ONE_SHIFT(0, -15, unsigned int, 0, true); - err |= TEST_ONE_SHIFT(0, -20, s32, 0, true); - err |= TEST_ONE_SHIFT(0, -20, u32, 0, true); - err |= TEST_ONE_SHIFT(0, -30, s64, 0, true); - err |= TEST_ONE_SHIFT(0, -30, u64, 0, true); + TEST_ONE_SHIFT(0, -5, s8, 0, true); + TEST_ONE_SHIFT(0, -5, u8, 0, true); + TEST_ONE_SHIFT(0, -10, s16, 0, true); + TEST_ONE_SHIFT(0, -10, u16, 0, true); + TEST_ONE_SHIFT(0, -15, int, 0, true); + TEST_ONE_SHIFT(0, -15, unsigned int, 0, true); + TEST_ONE_SHIFT(0, -20, s32, 0, true); + TEST_ONE_SHIFT(0, -20, u32, 0, true); + TEST_ONE_SHIFT(0, -30, s64, 0, true); + TEST_ONE_SHIFT(0, -30, u64, 0, true); /* Overflow: shifted at or beyond entire type's bit width. */ - err |= TEST_ONE_SHIFT(0, 8, u8, 0, true); - err |= TEST_ONE_SHIFT(0, 9, u8, 0, true); - err |= TEST_ONE_SHIFT(0, 8, s8, 0, true); - err |= TEST_ONE_SHIFT(0, 9, s8, 0, true); - err |= TEST_ONE_SHIFT(0, 16, u16, 0, true); - err |= TEST_ONE_SHIFT(0, 17, u16, 0, true); - err |= TEST_ONE_SHIFT(0, 16, s16, 0, true); - err |= TEST_ONE_SHIFT(0, 17, s16, 0, true); - err |= TEST_ONE_SHIFT(0, 32, u32, 0, true); - err |= TEST_ONE_SHIFT(0, 33, u32, 0, true); - err |= TEST_ONE_SHIFT(0, 32, int, 0, true); - err |= TEST_ONE_SHIFT(0, 33, int, 0, true); - err |= TEST_ONE_SHIFT(0, 32, s32, 0, true); - err |= TEST_ONE_SHIFT(0, 33, s32, 0, true); - err |= TEST_ONE_SHIFT(0, 64, u64, 0, true); - err |= TEST_ONE_SHIFT(0, 65, u64, 0, true); - err |= TEST_ONE_SHIFT(0, 64, s64, 0, true); - err |= TEST_ONE_SHIFT(0, 65, s64, 0, true); + TEST_ONE_SHIFT(0, 8, u8, 0, true); + TEST_ONE_SHIFT(0, 9, u8, 0, true); + TEST_ONE_SHIFT(0, 8, s8, 0, true); + TEST_ONE_SHIFT(0, 9, s8, 0, true); + TEST_ONE_SHIFT(0, 16, u16, 0, true); + TEST_ONE_SHIFT(0, 17, u16, 0, true); + TEST_ONE_SHIFT(0, 16, s16, 0, true); + TEST_ONE_SHIFT(0, 17, s16, 0, true); + TEST_ONE_SHIFT(0, 32, u32, 0, true); + TEST_ONE_SHIFT(0, 33, u32, 0, true); + TEST_ONE_SHIFT(0, 32, int, 0, true); + TEST_ONE_SHIFT(0, 33, int, 0, true); + TEST_ONE_SHIFT(0, 32, s32, 0, true); + TEST_ONE_SHIFT(0, 33, s32, 0, true); + TEST_ONE_SHIFT(0, 64, u64, 0, true); + TEST_ONE_SHIFT(0, 65, u64, 0, true); + TEST_ONE_SHIFT(0, 64, s64, 0, true); + TEST_ONE_SHIFT(0, 65, s64, 0, true); /* * Corner case: for unsigned types, we fail when we've shifted @@ -472,17 +442,14 @@ static int __init test_overflow_shift(void) * signed bit). So, for now, we will test this condition but * mark it as not expected to overflow. */ - err |= TEST_ONE_SHIFT(0, 7, s8, 0, false); - err |= TEST_ONE_SHIFT(0, 15, s16, 0, false); - err |= TEST_ONE_SHIFT(0, 31, int, 0, false); - err |= TEST_ONE_SHIFT(0, 31, s32, 0, false); - err |= TEST_ONE_SHIFT(0, 63, s64, 0, false); - - pr_info("%d shift tests finished\n", count); + TEST_ONE_SHIFT(0, 7, s8, 0, false); + TEST_ONE_SHIFT(0, 15, s16, 0, false); + TEST_ONE_SHIFT(0, 31, int, 0, false); + TEST_ONE_SHIFT(0, 31, s32, 0, false); + TEST_ONE_SHIFT(0, 63, s64, 0, false); + kunit_info(test, "%d shift tests finished\n", count); #undef TEST_ONE_SHIFT - - return err; } /* @@ -502,7 +469,7 @@ static int __init test_overflow_shift(void) #define TEST_SIZE (5 * 4096) #define DEFINE_TEST_ALLOC(func, free_func, want_arg, want_gfp, want_node)\ -static int __init test_ ## func (void *arg) \ +static void test_ ## func (struct kunit *test, void *arg) \ { \ volatile size_t a = TEST_SIZE; \ volatile size_t b = (SIZE_MAX / TEST_SIZE) + 1; \ @@ -510,30 +477,28 @@ static int __init test_ ## func (void *arg) \ \ /* Tiny allocation test. */ \ ptr = alloc ## want_arg ## want_gfp ## want_node (func, arg, 1);\ - if (!ptr) { \ - pr_warn(#func " failed regular allocation?!\n"); \ - return 1; \ - } \ + KUNIT_EXPECT_FALSE_MSG(test, !ptr, \ + #func " failed regular allocation?!\n"); \ + if (!ptr) \ + return; \ free ## want_arg (free_func, arg, ptr); \ \ /* Wrapped allocation test. */ \ ptr = alloc ## want_arg ## want_gfp ## want_node (func, arg, \ a * b); \ - if (!ptr) { \ - pr_warn(#func " unexpectedly failed bad wrapping?!\n"); \ - return 1; \ - } \ + KUNIT_EXPECT_FALSE_MSG(test, !ptr, \ + #func " unexpectedly failed bad wrapping?!\n"); \ + if (!ptr) \ + return; \ free ## want_arg (free_func, arg, ptr); \ \ /* Saturated allocation test. */ \ ptr = alloc ## want_arg ## want_gfp ## want_node (func, arg, \ array_size(a, b)); \ - if (ptr) { \ - pr_warn(#func " missed saturation!\n"); \ + KUNIT_EXPECT_FALSE_MSG(test, ptr, \ + #func " missed saturation!\n"); \ + if (ptr) \ free ## want_arg (free_func, arg, ptr); \ - return 1; \ - } \ - return 0; \ } /* @@ -554,44 +519,38 @@ DEFINE_TEST_ALLOC(kvzalloc_node, kvfree, 0, 1, 1); DEFINE_TEST_ALLOC(devm_kmalloc, devm_kfree, 1, 1, 0); DEFINE_TEST_ALLOC(devm_kzalloc, devm_kfree, 1, 1, 0); -static int __init test_overflow_allocation(void) +static void overflow_allocation_test(struct kunit *test) { const char device_name[] = "overflow-test"; struct device *dev; int count = 0; - int err = 0; -#define check_allocation_overflow(alloc) ({ \ +#define check_allocation_overflow(alloc) do { \ count++; \ - test_ ## alloc(dev); \ -}) + test_ ## alloc(test, dev); \ +} while (0) /* Create dummy device for devm_kmalloc()-family tests. */ dev = root_device_register(device_name); - if (IS_ERR(dev)) { - pr_warn("Cannot register test device\n"); - return 1; - } - - err |= check_allocation_overflow(kmalloc); - err |= check_allocation_overflow(kmalloc_node); - err |= check_allocation_overflow(kzalloc); - err |= check_allocation_overflow(kzalloc_node); - err |= check_allocation_overflow(__vmalloc); - err |= check_allocation_overflow(kvmalloc); - err |= check_allocation_overflow(kvmalloc_node); - err |= check_allocation_overflow(kvzalloc); - err |= check_allocation_overflow(kvzalloc_node); - err |= check_allocation_overflow(devm_kmalloc); - err |= check_allocation_overflow(devm_kzalloc); + KUNIT_ASSERT_FALSE_MSG(test, IS_ERR(dev), + "Cannot register test device\n"); + + check_allocation_overflow(kmalloc); + check_allocation_overflow(kmalloc_node); + check_allocation_overflow(kzalloc); + check_allocation_overflow(kzalloc_node); + check_allocation_overflow(__vmalloc); + check_allocation_overflow(kvmalloc); + check_allocation_overflow(kvmalloc_node); + check_allocation_overflow(kvzalloc); + check_allocation_overflow(kvzalloc_node); + check_allocation_overflow(devm_kmalloc); + check_allocation_overflow(devm_kzalloc); device_unregister(dev); - pr_info("%d allocation overflow tests finished\n", count); - + kunit_info(test, "%d allocation overflow tests finished\n", count); #undef check_allocation_overflow - - return err; } struct __test_flex_array { @@ -600,127 +559,118 @@ struct __test_flex_array { unsigned long data[]; }; -static int __init test_overflow_size_helpers(void) +static void overflow_size_helpers_test(struct kunit *test) { /* Make sure struct_size() can be used in a constant expression. */ u8 ce_array[struct_size((struct __test_flex_array *)0, data, 55)]; struct __test_flex_array *obj; int count = 0; - int err = 0; int var; volatile int unconst = 0; /* Verify constant expression against runtime version. */ var = 55; OPTIMIZER_HIDE_VAR(var); - err |= sizeof(ce_array) != struct_size(obj, data, var); + KUNIT_EXPECT_EQ(test, sizeof(ce_array), struct_size(obj, data, var)); -#define check_one_size_helper(expected, func, args...) ({ \ - bool __failure = false; \ - size_t _r; \ - \ - _r = func(args); \ - if (_r != (expected)) { \ - pr_warn("expected " #func "(" #args ") " \ - "to return %zu but got %zu instead\n", \ - (size_t)(expected), _r); \ - __failure = true; \ - } \ +#define check_one_size_helper(expected, func, args...) do { \ + size_t _r = func(args); \ + KUNIT_EXPECT_EQ_MSG(test, _r, expected, \ + "expected " #func "(" #args ") to return %zu but got %zu instead\n", \ + (size_t)(expected), _r); \ count++; \ - __failure; \ -}) +} while (0) var = 4; - err |= check_one_size_helper(20, size_mul, var++, 5); - err |= check_one_size_helper(20, size_mul, 4, var++); - err |= check_one_size_helper(0, size_mul, 0, 3); - err |= check_one_size_helper(0, size_mul, 3, 0); - err |= check_one_size_helper(6, size_mul, 2, 3); - err |= check_one_size_helper(SIZE_MAX, size_mul, SIZE_MAX, 1); - err |= check_one_size_helper(SIZE_MAX, size_mul, SIZE_MAX, 3); - err |= check_one_size_helper(SIZE_MAX, size_mul, SIZE_MAX, -3); + check_one_size_helper(20, size_mul, var++, 5); + check_one_size_helper(20, size_mul, 4, var++); + check_one_size_helper(0, size_mul, 0, 3); + check_one_size_helper(0, size_mul, 3, 0); + check_one_size_helper(6, size_mul, 2, 3); + check_one_size_helper(SIZE_MAX, size_mul, SIZE_MAX, 1); + check_one_size_helper(SIZE_MAX, size_mul, SIZE_MAX, 3); + check_one_size_helper(SIZE_MAX, size_mul, SIZE_MAX, -3); var = 4; - err |= check_one_size_helper(9, size_add, var++, 5); - err |= check_one_size_helper(9, size_add, 4, var++); - err |= check_one_size_helper(9, size_add, 9, 0); - err |= check_one_size_helper(9, size_add, 0, 9); - err |= check_one_size_helper(5, size_add, 2, 3); - err |= check_one_size_helper(SIZE_MAX, size_add, SIZE_MAX, 1); - err |= check_one_size_helper(SIZE_MAX, size_add, SIZE_MAX, 3); - err |= check_one_size_helper(SIZE_MAX, size_add, SIZE_MAX, -3); + check_one_size_helper(9, size_add, var++, 5); + check_one_size_helper(9, size_add, 4, var++); + check_one_size_helper(9, size_add, 9, 0); + check_one_size_helper(9, size_add, 0, 9); + check_one_size_helper(5, size_add, 2, 3); + check_one_size_helper(SIZE_MAX, size_add, SIZE_MAX, 1); + check_one_size_helper(SIZE_MAX, size_add, SIZE_MAX, 3); + check_one_size_helper(SIZE_MAX, size_add, SIZE_MAX, -3); var = 4; - err |= check_one_size_helper(1, size_sub, var--, 3); - err |= check_one_size_helper(1, size_sub, 4, var--); - err |= check_one_size_helper(1, size_sub, 3, 2); - err |= check_one_size_helper(9, size_sub, 9, 0); - err |= check_one_size_helper(SIZE_MAX, size_sub, 9, -3); - err |= check_one_size_helper(SIZE_MAX, size_sub, 0, 9); - err |= check_one_size_helper(SIZE_MAX, size_sub, 2, 3); - err |= check_one_size_helper(SIZE_MAX, size_sub, SIZE_MAX, 0); - err |= check_one_size_helper(SIZE_MAX, size_sub, SIZE_MAX, 10); - err |= check_one_size_helper(SIZE_MAX, size_sub, 0, SIZE_MAX); - err |= check_one_size_helper(SIZE_MAX, size_sub, 14, SIZE_MAX); - err |= check_one_size_helper(SIZE_MAX - 2, size_sub, SIZE_MAX - 1, 1); - err |= check_one_size_helper(SIZE_MAX - 4, size_sub, SIZE_MAX - 1, 3); - err |= check_one_size_helper(1, size_sub, SIZE_MAX - 1, -3); + check_one_size_helper(1, size_sub, var--, 3); + check_one_size_helper(1, size_sub, 4, var--); + check_one_size_helper(1, size_sub, 3, 2); + check_one_size_helper(9, size_sub, 9, 0); + check_one_size_helper(SIZE_MAX, size_sub, 9, -3); + check_one_size_helper(SIZE_MAX, size_sub, 0, 9); + check_one_size_helper(SIZE_MAX, size_sub, 2, 3); + check_one_size_helper(SIZE_MAX, size_sub, SIZE_MAX, 0); + check_one_size_helper(SIZE_MAX, size_sub, SIZE_MAX, 10); + check_one_size_helper(SIZE_MAX, size_sub, 0, SIZE_MAX); + check_one_size_helper(SIZE_MAX, size_sub, 14, SIZE_MAX); + check_one_size_helper(SIZE_MAX - 2, size_sub, SIZE_MAX - 1, 1); + check_one_size_helper(SIZE_MAX - 4, size_sub, SIZE_MAX - 1, 3); + check_one_size_helper(1, size_sub, SIZE_MAX - 1, -3); var = 4; - err |= check_one_size_helper(4 * sizeof(*obj->data), - flex_array_size, obj, data, var++); - err |= check_one_size_helper(5 * sizeof(*obj->data), - flex_array_size, obj, data, var++); - err |= check_one_size_helper(0, flex_array_size, obj, data, 0 + unconst); - err |= check_one_size_helper(sizeof(*obj->data), - flex_array_size, obj, data, 1 + unconst); - err |= check_one_size_helper(7 * sizeof(*obj->data), - flex_array_size, obj, data, 7 + unconst); - err |= check_one_size_helper(SIZE_MAX, - flex_array_size, obj, data, -1 + unconst); - err |= check_one_size_helper(SIZE_MAX, - flex_array_size, obj, data, SIZE_MAX - 4 + unconst); + check_one_size_helper(4 * sizeof(*obj->data), + flex_array_size, obj, data, var++); + check_one_size_helper(5 * sizeof(*obj->data), + flex_array_size, obj, data, var++); + check_one_size_helper(0, flex_array_size, obj, data, 0 + unconst); + check_one_size_helper(sizeof(*obj->data), + flex_array_size, obj, data, 1 + unconst); + check_one_size_helper(7 * sizeof(*obj->data), + flex_array_size, obj, data, 7 + unconst); + check_one_size_helper(SIZE_MAX, + flex_array_size, obj, data, -1 + unconst); + check_one_size_helper(SIZE_MAX, + flex_array_size, obj, data, SIZE_MAX - 4 + unconst); var = 4; - err |= check_one_size_helper(sizeof(*obj) + (4 * sizeof(*obj->data)), - struct_size, obj, data, var++); - err |= check_one_size_helper(sizeof(*obj) + (5 * sizeof(*obj->data)), - struct_size, obj, data, var++); - err |= check_one_size_helper(sizeof(*obj), struct_size, obj, data, 0 + unconst); - err |= check_one_size_helper(sizeof(*obj) + sizeof(*obj->data), - struct_size, obj, data, 1 + unconst); - err |= check_one_size_helper(SIZE_MAX, - struct_size, obj, data, -3 + unconst); - err |= check_one_size_helper(SIZE_MAX, - struct_size, obj, data, SIZE_MAX - 3 + unconst); - - pr_info("%d overflow size helper tests finished\n", count); - - return err; + check_one_size_helper(sizeof(*obj) + (4 * sizeof(*obj->data)), + struct_size, obj, data, var++); + check_one_size_helper(sizeof(*obj) + (5 * sizeof(*obj->data)), + struct_size, obj, data, var++); + check_one_size_helper(sizeof(*obj), struct_size, obj, data, 0 + unconst); + check_one_size_helper(sizeof(*obj) + sizeof(*obj->data), + struct_size, obj, data, 1 + unconst); + check_one_size_helper(SIZE_MAX, + struct_size, obj, data, -3 + unconst); + check_one_size_helper(SIZE_MAX, + struct_size, obj, data, SIZE_MAX - 3 + unconst); + + kunit_info(test, "%d overflow size helper tests finished\n", count); +#undef check_one_size_helper } -static int __init test_module_init(void) -{ - int err = 0; - - err |= test_overflow_calculation(); - err |= test_overflow_shift(); - err |= test_overflow_size_helpers(); - err |= test_overflow_allocation(); - - if (err) { - pr_warn("FAIL!\n"); - err = -EINVAL; - } else { - pr_info("all tests passed\n"); - } +static struct kunit_case overflow_test_cases[] = { + KUNIT_CASE(u8_overflow_test), + KUNIT_CASE(s8_overflow_test), + KUNIT_CASE(u16_overflow_test), + KUNIT_CASE(s16_overflow_test), + KUNIT_CASE(u32_overflow_test), + KUNIT_CASE(s32_overflow_test), +#if BITS_PER_LONG == 64 + KUNIT_CASE(u64_overflow_test), + KUNIT_CASE(s64_overflow_test), +#endif + KUNIT_CASE(overflow_shift_test), + KUNIT_CASE(overflow_allocation_test), + KUNIT_CASE(overflow_size_helpers_test), + {} +}; - return err; -} +static struct kunit_suite overflow_test_suite = { + .name = "overflow", + .test_cases = overflow_test_cases, +}; -static void __exit test_module_exit(void) -{ } +kunit_test_suite(overflow_test_suite); -module_init(test_module_init); -module_exit(test_module_exit); MODULE_LICENSE("Dual MIT/GPL"); -- 2.30.2

2 years, 3 months

4
5
0 0

[PATCH net-next 0/5] net: ping6: support setting basic SOL_IPV6 options via cmsg

by Jakub Kicinski

Support for IPV6_HOPLIMIT, IPV6_TCLASS, IPV6_DONTFRAG on ICMPv6 sockets and associated tests. I have no immediate plans to implement IPV6_FLOWINFO and all the extension header stuff. Jakub Kicinski (5): net: ping6: support setting basic SOL_IPV6 options via cmsg selftests: net: test IPV6_DONTFRAG selftests: net: test IPV6_TCLASS selftests: net: test IPV6_HOPLIMIT selftests: net: basic test for IPV6_2292* net/ipv6/ip6_output.c | 1 + net/ipv6/ping.c | 21 ++- tools/testing/selftests/net/cmsg_ipv6.sh | 156 ++++++++++++++++++++ tools/testing/selftests/net/cmsg_sender.c | 170 +++++++++++++++++++--- 4 files changed, 320 insertions(+), 28 deletions(-) create mode 100755 tools/testing/selftests/net/cmsg_ipv6.sh -- 2.34.1

2 years, 3 months

2
6
0 0

[PATCH] selftest/vm: Fix map_fixed_noreplace test failure

by Aneesh Kumar K.V

On the latest RHEL the test fails due to executable mapped at 256MB address # ./map_fixed_noreplace mmap() @ 0x10000000-0x10050000 p=0xffffffffffffffff result=File exists 10000000-10010000 r-xp 00000000 fd:04 34905657 /root/rpmbuild/BUILD/kernel-5.14.0-56.el9/linux-5.14.0-56.el9.ppc64le/tools/testing/selftests/vm/map_fixed_noreplace 10010000-10020000 r--p 00000000 fd:04 34905657 /root/rpmbuild/BUILD/kernel-5.14.0-56.el9/linux-5.14.0-56.el9.ppc64le/tools/testing/selftests/vm/map_fixed_noreplace 10020000-10030000 rw-p 00010000 fd:04 34905657 /root/rpmbuild/BUILD/kernel-5.14.0-56.el9/linux-5.14.0-56.el9.ppc64le/tools/testing/selftests/vm/map_fixed_noreplace 10029b90000-10029bc0000 rw-p 00000000 00:00 0 [heap] 7fffbb510000-7fffbb750000 r-xp 00000000 fd:04 24534 /usr/lib64/libc.so.6 7fffbb750000-7fffbb760000 r--p 00230000 fd:04 24534 /usr/lib64/libc.so.6 7fffbb760000-7fffbb770000 rw-p 00240000 fd:04 24534 /usr/lib64/libc.so.6 7fffbb780000-7fffbb7a0000 r--p 00000000 00:00 0 [vvar] 7fffbb7a0000-7fffbb7b0000 r-xp 00000000 00:00 0 [vdso] 7fffbb7b0000-7fffbb800000 r-xp 00000000 fd:04 24514 /usr/lib64/ld64.so.2 7fffbb800000-7fffbb810000 r--p 00040000 fd:04 24514 /usr/lib64/ld64.so.2 7fffbb810000-7fffbb820000 rw-p 00050000 fd:04 24514 /usr/lib64/ld64.so.2 7fffd93f0000-7fffd9420000 rw-p 00000000 00:00 0 [stack] Error: couldn't map the space we need for the test Fix this by finding a free address using mmap instead of hardcoding BASE_ADDRESS. Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Jann Horn <jannh(a)google.com> Cc: Shuah Khan <shuah(a)kernel.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Aneesh Kumar K.V <aneesh.kumar(a)linux.ibm.com> --- .../selftests/vm/map_fixed_noreplace.c | 49 ++++++++++++++----- 1 file changed, 37 insertions(+), 12 deletions(-) diff --git a/tools/testing/selftests/vm/map_fixed_noreplace.c b/tools/testing/selftests/vm/map_fixed_noreplace.c index d91bde511268..eed44322d1a6 100644 --- a/tools/testing/selftests/vm/map_fixed_noreplace.c +++ b/tools/testing/selftests/vm/map_fixed_noreplace.c @@ -17,9 +17,6 @@ #define MAP_FIXED_NOREPLACE 0x100000 #endif -#define BASE_ADDRESS (256ul * 1024 * 1024) - - static void dump_maps(void) { char cmd[32]; @@ -28,18 +25,46 @@ static void dump_maps(void) system(cmd); } +static unsigned long find_base_addr(unsigned long size) +{ + void *addr; + unsigned long flags; + + flags = MAP_PRIVATE | MAP_ANONYMOUS; + addr = mmap(NULL, size, PROT_NONE, flags, -1, 0); + if (addr == MAP_FAILED) { + printf("Error: couldn't map the space we need for the test\n"); + return 0; + } + + if (munmap(addr, size) != 0) { + printf("Error: couldn't map the space we need for the test\n"); + return 0; + } + return (unsigned long)addr; +} + int main(void) { + unsigned long base_addr; unsigned long flags, addr, size, page_size; char *p; page_size = sysconf(_SC_PAGE_SIZE); + //let's find a base addr that is free before we start the tests + size = 5 * page_size; + base_addr = find_base_addr(size); + if (!base_addr) { + printf("Error: couldn't map the space we need for the test\n"); + return 1; + } + flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE; // Check we can map all the areas we need below errno = 0; - addr = BASE_ADDRESS; + addr = base_addr; size = 5 * page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); @@ -60,7 +85,7 @@ int main(void) printf("unmap() successful\n"); errno = 0; - addr = BASE_ADDRESS + page_size; + addr = base_addr + page_size; size = 3 * page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -80,7 +105,7 @@ int main(void) * +4 | free | new */ errno = 0; - addr = BASE_ADDRESS; + addr = base_addr; size = 5 * page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -101,7 +126,7 @@ int main(void) * +4 | free | */ errno = 0; - addr = BASE_ADDRESS + (2 * page_size); + addr = base_addr + (2 * page_size); size = page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -121,7 +146,7 @@ int main(void) * +4 | free | new */ errno = 0; - addr = BASE_ADDRESS + (3 * page_size); + addr = base_addr + (3 * page_size); size = 2 * page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -141,7 +166,7 @@ int main(void) * +4 | free | */ errno = 0; - addr = BASE_ADDRESS; + addr = base_addr; size = 2 * page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -161,7 +186,7 @@ int main(void) * +4 | free | */ errno = 0; - addr = BASE_ADDRESS; + addr = base_addr; size = page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -181,7 +206,7 @@ int main(void) * +4 | free | new */ errno = 0; - addr = BASE_ADDRESS + (4 * page_size); + addr = base_addr + (4 * page_size); size = page_size; p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); @@ -192,7 +217,7 @@ int main(void) return 1; } - addr = BASE_ADDRESS; + addr = base_addr; size = 5 * page_size; if (munmap((void *)addr, size) != 0) { dump_maps(); -- 2.35.1

2 years, 3 months

1
0
0 0

[PATCH v2] selftests/resctrl: Print a message if the result of MBM&CMT tests is failed when Intel Sub-NUMA is enabled

by Shaopeng Tan

If the result of MBM&CMT tests is failed when Intel Sub-NUMA is enabled, print a possible causes of failure. Since when the Intel Sub-NUMA Clustering(SNC) feature is enabled, the CMT and MBM counters may not be accurate. Signed-off-by: Shaopeng Tan <tan.shaopeng(a)jp.fujitsu.com> --- Hello, According to the Intel RDT reference Manual, when the sub-numa clustering feature is enabled, the CMT and MBM counters may not be accurate. When running CMT tests and MBM tests on 2nd Generation Intel Xeon Scalable Processor, the result may be "not ok". If result of MBM&CMT tests is failed when Intel Sub-NUMA is enabled, fix it to print a possible cause of failure, instead of SKIP these tests in v1. Thanks, tools/testing/selftests/resctrl/Makefile | 1 + tools/testing/selftests/resctrl/cmt_test.c | 5 ++- tools/testing/selftests/resctrl/mbm_test.c | 5 ++- tools/testing/selftests/resctrl/resctrl.h | 2 ++ .../testing/selftests/resctrl/resctrl_tests.c | 36 +++++++++++++++++++ tools/testing/selftests/resctrl/resctrlfs.c | 26 ++++++++++++++ 6 files changed, 73 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/resctrl/Makefile b/tools/testing/selftests/resctrl/Makefile index adfd92145e12..6d257f40e6ac 100644 --- a/tools/testing/selftests/resctrl/Makefile +++ b/tools/testing/selftests/resctrl/Makefile @@ -1,6 +1,7 @@ #SPDX-License-Identifier: GPL-2.0 CFLAGS += -g -Wall -O2 -D_FORTIFY_SOURCE=2 +LDLIBS += -lnuma TEST_GEN_PROGS := resctrl_tests EXTRA_SOURCES := $(wildcard *.c) diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c index 8968e36db99d..c5a49444c5a0 100644 --- a/tools/testing/selftests/resctrl/cmt_test.c +++ b/tools/testing/selftests/resctrl/cmt_test.c @@ -136,8 +136,11 @@ int cmt_resctrl_val(int cpu_no, int n, char **benchmark_cmd) return ret; ret = check_results(&param, n); - if (ret) + if (ret) { + if (sub_numa_cluster_enable) + ksft_print_msg("Sub-NUMA Clustering(SNC) feature is enabled, the CMT counters may not be accurate.\n"); return ret; + } cmt_test_cleanup(); diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c index 8392e5c55ed0..7dc1bdf2d0b8 100644 --- a/tools/testing/selftests/resctrl/mbm_test.c +++ b/tools/testing/selftests/resctrl/mbm_test.c @@ -136,8 +136,11 @@ int mbm_bw_change(int span, int cpu_no, char *bw_report, char **benchmark_cmd) return ret; ret = check_results(span); - if (ret) + if (ret) { + if (sub_numa_cluster_enable) + ksft_print_msg("Sub-NUMA Clustering(SNC) feature is enabled, the MBM counters may not be accurate.\n"); return ret; + } mbm_test_cleanup(); diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index 1ad10c47e31d..4b8ad4fbd016 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -76,6 +76,7 @@ extern pid_t bm_pid, ppid; extern char llc_occup_path[1024]; extern bool is_amd; +extern bool sub_numa_cluster_enable; bool check_resctrlfs_support(void); int filter_dmesg(void); @@ -85,6 +86,7 @@ int umount_resctrlfs(void); int validate_bw_report_request(char *bw_report); bool validate_resctrl_feature_request(const char *resctrl_val); char *fgrep(FILE *inf, const char *str); +char *fgrep_last_match_line(FILE *inf, const char *str); int taskset_benchmark(pid_t bm_pid, int cpu_no); void run_benchmark(int signum, siginfo_t *info, void *ucontext); int write_schemata(char *ctrlgrp, char *schemata, int cpu_no, diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index 3be0895c492b..bbab4a7f37ed 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -8,12 +8,15 @@ * Sai Praneeth Prakhya <sai.praneeth.prakhya(a)intel.com>, * Fenghua Yu <fenghua.yu(a)intel.com> */ +#include <numa.h> +#include <string.h> #include "resctrl.h" #define BENCHMARK_ARGS 64 #define BENCHMARK_ARG_SIZE 64 bool is_amd; +bool sub_numa_cluster_enable; void detect_amd(void) { @@ -34,6 +37,35 @@ void detect_amd(void) fclose(inf); } +void check_sub_numa_cluster(void) +{ + FILE *inf = fopen("/proc/cpuinfo", "r"); + char *res, *s; + int socket_num = 0; + int numa_nodes = 0; + + if (!inf) + return; + + res = fgrep_last_match_line(inf, "physical id"); + + if (res) { + s = strpbrk(res, "1234567890"); + socket_num = atoi(s) + 1; + free(res); + } + fclose(inf); + + numa_nodes = numa_max_node() + 1; + + /* + * when the Sub-NUMA Clustering(SNC) feature is enabled, + * the number of numa nodes is twice the number of sockets. + */ + if (numa_nodes == (2 * socket_num)) + sub_numa_cluster_enable = true; +} + static void cmd_help(void) { printf("usage: resctrl_tests [-h] [-b \"benchmark_cmd [options]\"] [-t test list] [-n no_of_bits]\n"); @@ -210,6 +242,10 @@ int main(int argc, char **argv) /* Detect AMD vendor */ detect_amd(); + /* check whether sub numa clustering is enable or not */ + if (!is_amd) + check_sub_numa_cluster(); + if (has_ben) { /* Extract benchmark command from command line. */ for (i = ben_ind; i < argc; i++) { diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c index 5f5a166ade60..1908ecb14b70 100644 --- a/tools/testing/selftests/resctrl/resctrlfs.c +++ b/tools/testing/selftests/resctrl/resctrlfs.c @@ -605,6 +605,32 @@ char *fgrep(FILE *inf, const char *str) return NULL; } +/* + * Find the last matched line. + * Return a pointer to the string of the matched line, + * else retuen NULL if no matched line + */ +char *fgrep_last_match_line(FILE *inf, const char *str) +{ + char line[256]; + char result_line[256]; + int slen = strlen(str); + + while (!feof(inf)) { + if (!fgets(line, 256, inf)) + break; + if (strncmp(line, str, slen)) + continue; + + strcpy(result_line, line); + } + + if (strlen(result_line) >= slen) + return strdup(result_line); + + return NULL; +} + /* * validate_resctrl_feature_request - Check if requested feature is valid. * @resctrl_val: Requested feature -- 2.27.0

2 years, 3 months

3
5
0 0

[PATCH v3 0/6] add more test coverage to MTE kselftests

by Joey Gouly

This is a series which refactors and then adds some extra tests for MTE in the kselftest framework. The issue that these tests are for was was fixed by Robin in 295cf156231c ("arm64: Avoid premature usercopy failure") and based on a simplified example by Catalin [1]. They test some combinations of pointer offsets, sizes and syscalls to exercise different paths in the kernel. Changes since v2 [3]: - simplified error handling further - added more detailed commit messages - add reviewed-by and tested-by Changes since v1 [2]: - add a page_sz to the tests, for non-4K kernels - use loops to generate more tests and avoid long lines Thanks, Joey [1] https://lore.kernel.org/all/20210624150911.GA25097@arm.com/ [2] https://lore.kernel.org/linux-arm-kernel/20220125150920.23955-1-joey.gouly@… [3] https://lore.kernel.org/linux-arm-kernel/45ab2d96-c8e0-7b72-a384-c4160b9312… Joey Gouly (6): kselftest/arm64: mte: user_mem: introduce tag_offset and tag_len kselftest/arm64: mte: user_mem: rework error handling kselftest/arm64: mte: user_mem: check different offsets and sizes kselftest/arm64: mte: user_mem: add test type enum kselftest/arm64: mte: user_mem: add more test types kselftest/arm64: mte: user_mem: test a wider range of values .../selftests/arm64/mte/check_user_mem.c | 193 +++++++++++++++--- 1 file changed, 160 insertions(+), 33 deletions(-) -- 2.17.1

2 years, 3 months

3
13
0 0

[PATCH 0/3] arm64: insn: Generate 64 bit mask immediates correctly

by James Morse

Hello, aarch64_insn_gen_logical_immediate() is generating the wrong code if it is handed a 64bit immediate which has a single span of 1s (i.e. a mask), with bit 63 set, and 0s in the remaining upper 32 bits. Clear as mud. An example always helps: 0x800000003fffffff would be wrongly encoded, but 0x000000003fffffff is unaffected. It would appear eBPF is unable to hit these cases, as build_insn()'s imm value is a s32, so when used with BPF_ALU64, the sign-extended u64 immediate would always have all-1s or all-0s in the upper 32 bits. KVM does not generate a va_mask with any of the top bits set as these VA wouldn't be usable with TTBR0_EL2. Patch 3 fixes it, and doesn't depend on the rest of the series. As the instruction encoder is a source of headaches, the first two patches add tests to help illustrate there is a problem, and that patch 3 fixes it. The tests generate a header file of the expected values so it can be compared against other sources of the same information. Objdump can be used to check the header file is generated correctly. Embedding the code in gen_logic_imm in test_insn.c would give less confidence that the encoder is doing the right thing. This series is based on v5.17-rc1, and can be retrieved from: https://git.gitlab.arm.com/linux-arm/linux-jm.git insn_encoder/fls_bug/v1 Thanks, James Morse (3): arm64: selftests: Generate all the possible logical immediates as a header arm64: insn: Add tests for aarch64_insn_gen_logical_immediate() arm64: insn: Generate 64 bit mask immediates correctly arch/arm64/Kconfig.debug | 3 + arch/arm64/Makefile | 3 + arch/arm64/lib/Makefile | 2 + arch/arm64/lib/insn.c | 5 +- arch/arm64/lib/test_insn.c | 90 ++++++++++ arch/arm64/tools/.gitignore | 2 + arch/arm64/tools/Makefile | 12 +- arch/arm64/tools/gen_logic_imm.c | 190 +++++++++++++++++++++ tools/testing/selftests/arm64/Makefile | 2 +- tools/testing/selftests/arm64/lib/Makefile | 6 + tools/testing/selftests/arm64/lib/config | 1 + tools/testing/selftests/arm64/lib/insn.sh | 5 + 12 files changed, 318 insertions(+), 3 deletions(-) create mode 100644 arch/arm64/lib/test_insn.c create mode 100644 arch/arm64/tools/.gitignore create mode 100644 arch/arm64/tools/gen_logic_imm.c create mode 100644 tools/testing/selftests/arm64/lib/Makefile create mode 100644 tools/testing/selftests/arm64/lib/config create mode 100755 tools/testing/selftests/arm64/lib/insn.sh -- 2.30.2

2 years, 3 months

4
7
0 0

[PATCH] kselftest/arm64: Remove local definitions of MTE prctls

by Mark Brown

The GCR EL1 test unconditionally includes local definitions of the prctls it tests. Since not only will the kselftest build infrastructure ensure that the in tree uapi headers are available but the toolchain being used to build kselftest may ensure that system uapi headers with MTE support are available this causes the compiler to warn about duplicate definitions. Remove these duplicate definitions. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- .../selftests/arm64/mte/check_gcr_el1_cswitch.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c b/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c index a876db1f096a..325bca0de0f6 100644 --- a/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c +++ b/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c @@ -19,17 +19,6 @@ #include "kselftest.h" #include "mte_common_util.h" -#define PR_SET_TAGGED_ADDR_CTRL 55 -#define PR_GET_TAGGED_ADDR_CTRL 56 -# define PR_TAGGED_ADDR_ENABLE (1UL << 0) -# define PR_MTE_TCF_SHIFT 1 -# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT) -# define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT) -# define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT) -# define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT) -# define PR_MTE_TAG_SHIFT 3 -# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT) - #include "mte_def.h" #define NUM_ITERATIONS 1024 -- 2.30.2

2 years, 3 months

4
3
0 0

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Linux-kselftest-mirror February 2022