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

[PATCH AUTOSEL 5.9 053/111] selftests/bpf: Fix overflow tests to reflect iter size increase

by Sasha Levin

From: Alan Maguire <alan.maguire(a)oracle.com> [ Upstream commit eb58bbf2e5c7917aa30bf8818761f26bbeeb2290 ] bpf iter size increase to PAGE_SIZE << 3 means overflow tests assuming page size need to be bumped also. Signed-off-by: Alan Maguire <alan.maguire(a)oracle.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Link: https://lore.kernel.org/bpf/1601292670-1616-7-git-send-email-alan.maguire@o… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c index 7375d9a6d2427..a8924cbc7509d 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -331,7 +331,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) struct bpf_map_info map_info = {}; struct bpf_iter_test_kern4 *skel; struct bpf_link *link; - __u32 page_size; + __u32 iter_size; char *buf; skel = bpf_iter_test_kern4__open(); @@ -353,19 +353,19 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) "map_creation failed: %s\n", strerror(errno))) goto free_map1; - /* bpf_seq_printf kernel buffer is one page, so one map + /* bpf_seq_printf kernel buffer is 8 pages, so one map * bpf_seq_write will mostly fill it, and the other map * will partially fill and then trigger overflow and need * bpf_seq_read restart. */ - page_size = sysconf(_SC_PAGE_SIZE); + iter_size = sysconf(_SC_PAGE_SIZE) << 3; if (test_e2big_overflow) { - skel->rodata->print_len = (page_size + 8) / 8; - expected_read_len = 2 * (page_size + 8); + skel->rodata->print_len = (iter_size + 8) / 8; + expected_read_len = 2 * (iter_size + 8); } else if (!ret1) { - skel->rodata->print_len = (page_size - 8) / 8; - expected_read_len = 2 * (page_size - 8); + skel->rodata->print_len = (iter_size - 8) / 8; + expected_read_len = 2 * (iter_size - 8); } else { skel->rodata->print_len = 1; expected_read_len = 2 * 8; -- 2.25.1

5 years

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[PATCH] fat: Add KUnit tests for checksums and timestamps

by David Gow

Add some basic sanity-check tests for the fat_checksum() function and the fat_time_unix2fat() and fat_time_fat2unix() functions. These unit tests verify these functions return correct output for a number of test inputs. These tests were inspored by -- and serve a similar purpose to -- the timestamp parsing KUnit tests in ext4[1]. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/… Signed-off-by: David Gow <davidgow(a)google.com> --- fs/fat/Kconfig | 13 +++ fs/fat/Makefile | 2 + fs/fat/fat_test.c | 197 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 212 insertions(+) create mode 100644 fs/fat/fat_test.c diff --git a/fs/fat/Kconfig b/fs/fat/Kconfig index 66532a71e8fd..fdef03b79c69 100644 --- a/fs/fat/Kconfig +++ b/fs/fat/Kconfig @@ -115,3 +115,16 @@ config FAT_DEFAULT_UTF8 Say Y if you use UTF-8 encoding for file names, N otherwise. See <file:Documentation/filesystems/vfat.rst> for more information. + +config FAT_KUNIT_TEST + tristate "Unit Tests for FAT filesystems" if !KUNIT_ALL_TESTS + select FAT_FS + depends on KUNIT + default KUNIT_ALL_TESTS + help + This builds the FAT KUnit tests + + 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 diff --git a/fs/fat/Makefile b/fs/fat/Makefile index 70645ce2f7fc..2b034112690d 100644 --- a/fs/fat/Makefile +++ b/fs/fat/Makefile @@ -10,3 +10,5 @@ obj-$(CONFIG_MSDOS_FS) += msdos.o fat-y := cache.o dir.o fatent.o file.o inode.o misc.o nfs.o vfat-y := namei_vfat.o msdos-y := namei_msdos.o + +obj-$(CONFIG_FAT_KUNIT_TEST) += fat_test.o diff --git a/fs/fat/fat_test.c b/fs/fat/fat_test.c new file mode 100644 index 000000000000..c1b4348b9b3b --- /dev/null +++ b/fs/fat/fat_test.c @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit tests for FAT filesystems. + * + * Copyright (C) 2020 Google LLC. + * Author: David Gow <davidgow(a)google.com> + */ + +#include <kunit/test.h> + +#include "fat.h" + +static void fat_checksum_test(struct kunit *test) +{ + /* With no extension. */ + KUNIT_EXPECT_EQ(test, fat_checksum("VMLINUX "), 44); + /* With 3-letter extension. */ + KUNIT_EXPECT_EQ(test, fat_checksum("README TXT"), 115); + /* With short (1-letter) extension. */ + KUNIT_EXPECT_EQ(test, fat_checksum("ABCDEFGHA "), 98); +} + + +struct fat_timestamp_testcase { + const char *name; + struct timespec64 ts; + __le16 time; + __le16 date; + u8 cs; + int time_offset; +}; + +const static struct fat_timestamp_testcase time_test_cases[] = { + { + .name = "Earliest possible UTC (1980-01-01 00:00:00)", + .ts = {.tv_sec = 315532800LL, .tv_nsec = 0L}, + .time = 0, + .date = 33, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Latest possible UTC (2107-12-31 23:59:58)", + .ts = {.tv_sec = 4354819198LL, .tv_nsec = 0L}, + .time = 49021, + .date = 65439, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Earliest possible (UTC-11) (== 1979-12-31 13:00:00 UTC)", + .ts = {.tv_sec = 315493200LL, .tv_nsec = 0L}, + .time = 0, + .date = 33, + .cs = 0, + .time_offset = 11 * 60, + }, + { + .name = "Latest possible (UTC+11) (== 2108-01-01 10:59:58 UTC)", + .ts = {.tv_sec = 4354858798LL, .tv_nsec = 0L}, + .time = 49021, + .date = 65439, + .cs = 0, + .time_offset = -11 * 60, + }, + { + .name = "Leap Day / Year (1996-02-29 00:00:00)", + .ts = {.tv_sec = 825552000LL, .tv_nsec = 0L}, + .time = 0, + .date = 8285, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Year 2000 is leap year (2000-02-29 00:00:00)", + .ts = {.tv_sec = 951782400LL, .tv_nsec = 0L}, + .time = 0, + .date = 10333, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Year 2100 not leap year (2100-03-01 00:00:00)", + .ts = {.tv_sec = 4107542400LL, .tv_nsec = 0L}, + .time = 0, + .date = 61537, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Leap year + timezone UTC+1 (== 2004-02-29 00:30:00 UTC)", + .ts = {.tv_sec = 1078014600LL, .tv_nsec = 0L}, + .time = 48064, + .date = 12380, + .cs = 0, + .time_offset = -60, + }, + { + .name = "Leap year + timezone UTC-1 (== 2004-02-29 23:30:00 UTC)", + .ts = {.tv_sec = 1078097400LL, .tv_nsec = 0L}, + .time = 960, + .date = 12385, + .cs = 0, + .time_offset = 60, + }, + { + .name = "VFAT odd-second resolution (1999-12-31 23:59:59)", + .ts = {.tv_sec = 946684799LL, .tv_nsec = 0L}, + .time = 49021, + .date = 10143, + .cs = 100, + .time_offset = 0, + }, + { + .name = "VFAT 10ms resolution (1980-01-01 00:00:00:0010)", + .ts = {.tv_sec = 315532800LL, .tv_nsec = 10000000L}, + .time = 0, + .date = 33, + .cs = 1, + .time_offset = 0, + }, +}; + +static void fat_time_fat2unix_test(struct kunit *test) +{ + struct msdos_sb_info fake_sb; + int i; + struct timespec64 ts; + + for (i = 0; i < ARRAY_SIZE(time_test_cases); ++i) { + fake_sb.options.tz_set = 1; + fake_sb.options.time_offset = time_test_cases[i].time_offset; + + fat_time_fat2unix(&fake_sb, &ts, + time_test_cases[i].time, + time_test_cases[i].date, + time_test_cases[i].cs); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].ts.tv_sec, + ts.tv_sec, + "Timestamp mismatch (seconds) in case \"%s\"\n", + time_test_cases[i].name); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].ts.tv_nsec, + ts.tv_nsec, + "Timestamp mismatch (nanoseconds) in case \"%s\"\n", + time_test_cases[i].name); + } +} + +static void fat_time_unix2fat_test(struct kunit *test) +{ + struct msdos_sb_info fake_sb; + int i; + __le16 date, time; + u8 cs; + + for (i = 0; i < ARRAY_SIZE(time_test_cases); ++i) { + fake_sb.options.tz_set = 1; + fake_sb.options.time_offset = time_test_cases[i].time_offset; + + fat_time_unix2fat(&fake_sb, &time_test_cases[i].ts, + &time, &date, &cs); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].time, + time, + "Time mismatch in case \"%s\"\n", + time_test_cases[i].name); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].date, + date, + "Date mismatch in case \"%s\"\n", + time_test_cases[i].name); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].cs, + cs, + "Centisecond mismatch in case \"%s\"\n", + time_test_cases[i].name); + } +} + +static struct kunit_case fat_test_cases[] = { + KUNIT_CASE(fat_checksum_test), + KUNIT_CASE(fat_time_fat2unix_test), + KUNIT_CASE(fat_time_unix2fat_test), + {}, +}; + +static struct kunit_suite fat_test_suite = { + .name = "fat_test", + .test_cases = fat_test_cases, +}; + +kunit_test_suites(&fat_test_suite); + +MODULE_LICENSE("GPL v2"); + -- 2.29.0.rc1.297.gfa9743e501-goog

5 years

3
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[PATCH v2 1/3] lib/list_kunit: Follow new file name convention for KUnit tests

by Andy Shevchenko

Follow new file name convention for the KUnit tests. Since we have lib/*test*.c in a few variations, use 'kunit' suffix to distinguish usual test cases with KUnit-based ones. Cc: David Gow <davidgow(a)google.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- v2: followed new convention MAINTAINERS | 2 +- lib/Makefile | 2 +- lib/{list-test.c => list_kunit.c} | 0 3 files changed, 2 insertions(+), 2 deletions(-) rename lib/{list-test.c => list_kunit.c} (100%) diff --git a/MAINTAINERS b/MAINTAINERS index 4538378de6f5..20facbca9388 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10188,7 +10188,7 @@ 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/list_kunit.c LIVE PATCHING M: Josh Poimboeuf <jpoimboe(a)redhat.com> diff --git a/lib/Makefile b/lib/Makefile index 5ca03ba6ee45..1a5e6a6ebe8d 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -350,6 +350,6 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ # KUnit tests obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LIST_KUNIT_TEST) += list_kunit.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o diff --git a/lib/list-test.c b/lib/list_kunit.c similarity index 100% rename from lib/list-test.c rename to lib/list_kunit.c -- 2.28.0

5 years

3
11
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[PATCH v1] i2c: aspeed: add KUnit tests for clock parameters

by Brendan Higgins

Add KUnit tests for Aspeed I2C driver to test setting clock divider registers given an input clock speed. I wrote this test a while ago and it found a bug in the Aspeed I2C driver a couple years ago[1]. Link[1]: https://lore.kernel.org/patchwork/patch/989312/ Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> --- MAINTAINERS | 1 + drivers/i2c/busses/Kconfig | 18 ++- drivers/i2c/busses/i2c-aspeed-test.c | 218 +++++++++++++++++++++++++++ drivers/i2c/busses/i2c-aspeed.c | 4 + 4 files changed, 240 insertions(+), 1 deletion(-) create mode 100644 drivers/i2c/busses/i2c-aspeed-test.c diff --git a/MAINTAINERS b/MAINTAINERS index deaafb617361c..683382df2434a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1653,6 +1653,7 @@ L: openbmc(a)lists.ozlabs.org (moderated for non-subscribers) S: Maintained F: Documentation/devicetree/bindings/i2c/i2c-aspeed.txt F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt +F: drivers/i2c/busses/i2c-aspeed-test.c F: drivers/i2c/busses/i2c-aspeed.c F: drivers/irqchip/irq-aspeed-i2c-ic.c diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 293e7a0760e77..0f12090f9fe26 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -379,7 +379,7 @@ config I2C_ALTERA config I2C_ASPEED tristate "Aspeed I2C Controller" - depends on ARCH_ASPEED || COMPILE_TEST + depends on ARCH_ASPEED || COMPILE_TEST || KUNIT=y help If you say yes to this option, support will be included for the Aspeed I2C controller. @@ -387,6 +387,22 @@ config I2C_ASPEED This driver can also be built as a module. If so, the module will be called i2c-aspeed. +config I2C_ASPEED_KUNIT_TEST + bool "Aspeed I2C Controller KUnit test" + depends on I2C_ASPEED=y + help + This builds the Aspeed I2C KUnit tests. + + KUnit tests run during boot and output the results to the debug log + in TAP format (https://testanything.org/). Only useful for kernel devs + running KUnit test harness and are not for inclusion into a + production build. + + 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 I2C_AT91 tristate "Atmel AT91 I2C Two-Wire interface (TWI)" depends on ARCH_AT91 || COMPILE_TEST diff --git a/drivers/i2c/busses/i2c-aspeed-test.c b/drivers/i2c/busses/i2c-aspeed-test.c new file mode 100644 index 0000000000000..93e73af95b645 --- /dev/null +++ b/drivers/i2c/busses/i2c-aspeed-test.c @@ -0,0 +1,218 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Aspeed 24XX/25XX I2C Controller KUnit tests. + * + * Copyright (C) 2020 Google LLC. + */ + +#include <kunit/test.h> + +#define ASPEED_I2C_MAX_BASE_DIVISOR (1 << ASPEED_I2CD_TIME_BASE_DIVISOR_MASK) +#define ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK GENMASK(2, 0) +#define ASPEED_I2C_24XX_CLK_HIGH_LOW_MAX ((ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK + 1) * 2) +#define ASPEED_I2C_24XX_MAX_DIVISOR \ + (ASPEED_I2C_MAX_BASE_DIVISOR * ASPEED_I2C_24XX_CLK_HIGH_LOW_MAX) +#define ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK GENMASK(3, 0) +#define ASPEED_I2C_25XX_CLK_HIGH_LOW_MAX ((ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK + 1) * 2) +#define ASPEED_I2C_25XX_MAX_DIVISOR \ + (ASPEED_I2C_MAX_BASE_DIVISOR * ASPEED_I2C_25XX_CLK_HIGH_LOW_MAX) + +static u32 aspeed_i2c_get_base_clk(u32 reg_val) +{ + return reg_val & ASPEED_I2CD_TIME_BASE_DIVISOR_MASK; +} + +static u32 aspeed_i2c_get_clk_high(u32 reg_val) +{ + return (reg_val & ASPEED_I2CD_TIME_SCL_HIGH_MASK) >> + ASPEED_I2CD_TIME_SCL_HIGH_SHIFT; +} + +static u32 aspeed_i2c_get_clk_low(u32 reg_val) +{ + return (reg_val & ASPEED_I2CD_TIME_SCL_LOW_MASK) >> + ASPEED_I2CD_TIME_SCL_LOW_SHIFT; +} + +static void aspeed_i2c_get_clk_reg_val_params_test(struct kunit *test, + u32 (*get_clk_reg_val)(struct device *, u32), + u32 divisor, + u32 base_clk, + u32 clk_high, + u32 clk_low) +{ + u32 reg_val; + + reg_val = get_clk_reg_val(NULL, divisor); + KUNIT_ASSERT_EQ(test, + (u32)(reg_val & ~(ASPEED_I2CD_TIME_SCL_HIGH_MASK | + ASPEED_I2CD_TIME_SCL_LOW_MASK | + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK)), + (u32)0); + KUNIT_EXPECT_EQ(test, aspeed_i2c_get_base_clk(reg_val), base_clk); + KUNIT_EXPECT_EQ(test, aspeed_i2c_get_clk_high(reg_val), clk_high); + KUNIT_EXPECT_EQ(test, aspeed_i2c_get_clk_low(reg_val), clk_low); +} + +static void aspeed_i2c_24xx_get_clk_reg_val_params_test(struct kunit *test, + u32 divisor, + u32 base_clk, + u32 clk_high, + u32 clk_low) +{ + aspeed_i2c_get_clk_reg_val_params_test(test, + aspeed_i2c_24xx_get_clk_reg_val, + divisor, + base_clk, + clk_high, + clk_low); +} + +/* + * Verify that smallest possible divisors are handled correctly. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_min(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 0, 0, 0, 0); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 1, 0, 0, 0); +} + +/* + * Verify that largest possible divisors are handled correctly. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_max(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_24XX_MAX_DIVISOR, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_24XX_MAX_DIVISOR + 1, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, + U32_MAX, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK); +} + +/* + * Spot check values from the datasheet table. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_datasheet(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 6, 0, 2, 2); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 7, 0, 3, 2); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 16, 0, 7, 7); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 18, 1, 4, 3); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 491520, 15, 7, 6); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 524288, 15, 7, 7); +} + +/* + * Check that a divisor that cannot be represented exactly is rounded up to the + * next divisor that can be represented. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_round_up(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 16, 0, 7, 7); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 17, 1, 4, 3); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 18, 1, 4, 3); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 19, 1, 4, 4); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 491519, 15, 7, 6); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 491520, 15, 7, 6); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 524287, 15, 7, 7); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 524288, 15, 7, 7); +} + +static void aspeed_i2c_25xx_get_clk_reg_val_params_test(struct kunit *test, + u32 divisor, + u32 base_clk, + u32 clk_high, + u32 clk_low) +{ + aspeed_i2c_get_clk_reg_val_params_test(test, + aspeed_i2c_25xx_get_clk_reg_val, + divisor, + base_clk, + clk_high, + clk_low); +} + +/* + * Verify that smallest possible divisors are handled correctly. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_min(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 0, 0, 0, 0); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 1, 0, 0, 0); +} + +/* + * Verify that largest possible divisors are handled correctly. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_max(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_25XX_MAX_DIVISOR, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_25XX_MAX_DIVISOR + 1, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, + U32_MAX, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK); +} + +/* + * Spot check values from the datasheet table. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_datasheet(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 6, 0, 2, 2); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 7, 0, 3, 2); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 32, 0, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 34, 1, 8, 7); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2048, 6, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2176, 7, 8, 7); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 3072, 7, 11, 11); +} + +/* + * Check that a divisor that cannot be represented exactly is rounded up to the + * next divisor that can be represented. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_round_up(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2047, 6, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2048, 6, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2175, 7, 8, 7); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2176, 7, 8, 7); +} + +static struct kunit_case aspeed_i2c_test_cases[] = { + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_min), + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_max), + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_datasheet), + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_round_up), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_min), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_max), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_datasheet), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_round_up), + {}, +}; + +static struct kunit_suite aspeed_i2c_test = { + .name = "aspeed-i2c", + .test_cases = aspeed_i2c_test_cases, +}; +kunit_test_suite(aspeed_i2c_test); diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c index 31268074c4221..68c460b7d4def 100644 --- a/drivers/i2c/busses/i2c-aspeed.c +++ b/drivers/i2c/busses/i2c-aspeed.c @@ -1082,6 +1082,10 @@ static struct platform_driver aspeed_i2c_bus_driver = { }; module_platform_driver(aspeed_i2c_bus_driver); +#ifdef CONFIG_I2C_ASPEED_KUNIT_TEST +#include "i2c-aspeed-test.c" +#endif /* CONFIG_I2C_ASPEED_KUNIT_TEST */ + MODULE_AUTHOR("Brendan Higgins <brendanhiggins(a)google.com>"); MODULE_DESCRIPTION("Aspeed I2C Bus Driver"); MODULE_LICENSE("GPL v2"); base-commit: 1abdd39f14b25dd2d69096b624a4f86f158a9feb -- 2.29.0.rc1.297.gfa9743e501-goog

5 years

1
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[PATCH] lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE

by Vitor Massaru Iha

A build condition was missing around a compilation test, this compilation test comes from the original test_bitfield code. And removed unnecessary code for this test. Fixes: d2585f5164c2 ("lib: kunit: add bitfield test conversion to KUnit") Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> Link: https://lore.kernel.org/linux-next/20201015163056.56fcc835@canb.auug.org.au/ --- lib/bitfield_kunit.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/lib/bitfield_kunit.c b/lib/bitfield_kunit.c index d63a2be5aff8..1473d8b4bf0f 100644 --- a/lib/bitfield_kunit.c +++ b/lib/bitfield_kunit.c @@ -125,7 +125,7 @@ static void __init test_bitfields_variables(struct kunit *context) CHECK(u64, 0x0000001f8000000ull); } - +#ifdef TEST_BITFIELD_COMPILE static void __init test_bitfields_compile(struct kunit *context) { /* these should fail compilation */ @@ -135,13 +135,11 @@ static void __init test_bitfields_compile(struct kunit *context) /* this should at least give a warning */ u16_encode_bits(0, 0x60000); } +#endif static struct kunit_case __refdata bitfields_test_cases[] = { KUNIT_CASE(test_bitfields_constants), KUNIT_CASE(test_bitfields_variables), -#ifdef TEST_BITFIELD_COMPILE - KUNIT_CASE(test_bitfields_compile), -#endif {} }; base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years

3
2
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[GIT PULL] Kunit fixes update for Linux 5.10-rc1

by Shuah Khan

Hi Linus, Please pull the following Kunit fixes update for Linux 5.10-rc1 This Kunit fixes update consists of several kunit tool bug fixes in flag handling, run outside kernel tree, make errors, and generating results. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5: Linux 5.9-rc1 (2020-08-16 13:04:57 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-fixes-5.10-rc1 for you to fetch changes up to 1abdd39f14b25dd2d69096b624a4f86f158a9feb: kunit: tool: fix display of make errors (2020-10-09 14:04:09 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-fixes-5.10-rc1 This Kunit fixes update consists of several kunit tool bug fixes in flag handling, run outside kernel tree, make errors, and generating results. ---------------------------------------------------------------- Brendan Higgins (3): kunit: tool: fix running kunit_tool from outside kernel tree kunit: tool: fix --alltests flag kunit: tool: handle when .kunit exists but .kunitconfig does not Daniel Latypov (1): kunit: tool: fix display of make errors Heidi Fahim (1): kunit: tool: allow generating test results in JSON tools/testing/kunit/configs/broken_on_uml.config | 1 + tools/testing/kunit/kunit.py | 58 +++++++++++++++------- tools/testing/kunit/kunit_json.py | 63 ++++++++++++++++++++++++ tools/testing/kunit/kunit_kernel.py | 27 +++++----- tools/testing/kunit/kunit_tool_test.py | 33 +++++++++++++ 5 files changed, 154 insertions(+), 28 deletions(-) create mode 100644 tools/testing/kunit/kunit_json.py ----------------------------------------------------------------

5 years

2
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[GIT PULL] Kselftest next update for Linux 5.10-rc1

by Shuah Khan

Hi Linus, Please pull the following Kselftest next update for Linux 5.10-rc1 This kselftest update for Linux 5.10-rc1 consists of enhancements to -- speed up headers_install done during selftest build -- add generic make nesting support -- add support to select individual tests: - Selftests build/install generates run_kselftest.sh script to run selftests on a target system. Currently the script doesn't have support for selecting individual tests. Add support for it. With this enhancement, user can select test collections (or tests) individually. e.g: run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep Additionally adds a way to list all known tests with "-l", usage with "-h", and perform a dry run without running tests with "-n". diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5: Linux 5.9-rc1 (2020-08-16 13:04:57 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-next-5.10-rc1 for you to fetch changes up to 4c8511317b4ec75cc3868f80a7b9fddb8322e512: doc: dev-tools: kselftest.rst: Update examples and paths (2020-10-07 07:59:24 -0600) ---------------------------------------------------------------- linux-kselftest-next-5.10-rc1 This kselftest update for Linux 5.10-rc1 consists of enhancements to -- speed up headers_install done during selftest build -- add generic make nesting support -- add support to select individual tests: - Selftests build/install generates run_kselftest.sh script to run selftests on a target system. Currently the script doesn't have support for selecting individual tests. Add support for it. With this enhancement, user can select test collections (or tests) individually. e.g: run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep Additionally adds a way to list all known tests with "-l", usage with "-h", and perform a dry run without running tests with "-n". ---------------------------------------------------------------- Denys Vlasenko (1): selftests: use "$(MAKE)" instead of "make" for headers_install Gabriel Krisman Bertazi (1): selftests: Add missing gitignore entries Greg Thelen (1): selftests: more general make nesting support Kees Cook (3): selftests: Extract run_kselftest.sh and generate stand-alone test list selftests/run_kselftest.sh: Make each test individually selectable doc: dev-tools: kselftest.rst: Update examples and paths Documentation/dev-tools/kselftest.rst | 35 +++++++---- tools/testing/selftests/Makefile | 34 ++++------ tools/testing/selftests/firmware/.gitignore | 2 + tools/testing/selftests/lib.mk | 9 ++- tools/testing/selftests/netfilter/.gitignore | 2 + tools/testing/selftests/ptrace/.gitignore | 1 + tools/testing/selftests/run_kselftest.sh | 93 ++++++++++++++++++++++++++++ 7 files changed, 135 insertions(+), 41 deletions(-) create mode 100644 tools/testing/selftests/firmware/.gitignore create mode 100644 tools/testing/selftests/netfilter/.gitignore create mode 100755 tools/testing/selftests/run_kselftest.sh ----------------------------------------------------------------

5 years

2
1
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[PATCH v2 0/3] Extract run_kselftest.sh and generate stand-alone test list

by Kees Cook

v2: - update documentation - include SPDX line in extracted script v1: https://lore.kernel.org/linux-kselftest/20200925234527.1885234-1-keescook@c… Hi! I really like Hangbin Liu's intent[1] but I think we need to be a little more clean about the implementation. This extracts run_kselftest.sh from the Makefile so it can actually be changed without embeds, etc. Instead, generate the test list into a text file. Everything gets much simpler. :) And in patch 2, I add back Hangbin Liu's new options (with some extra added) with knowledge of "collections" (i.e. Makefile TARGETS) and subtests. This should work really well with LAVA too, which needs to manipulate the lists of tests being run. Thoughts? -Kees [1] https://lore.kernel.org/lkml/20200914022227.437143-1-liuhangbin@gmail.com/ Kees Cook (3): selftests: Extract run_kselftest.sh and generate stand-alone test list selftests/run_kselftest.sh: Make each test individually selectable doc: dev-tools: kselftest.rst: Update examples and paths Documentation/dev-tools/kselftest.rst | 35 +++++---- tools/testing/selftests/Makefile | 26 ++----- tools/testing/selftests/lib.mk | 5 +- tools/testing/selftests/run_kselftest.sh | 93 ++++++++++++++++++++++++ 4 files changed, 124 insertions(+), 35 deletions(-) create mode 100755 tools/testing/selftests/run_kselftest.sh -- 2.25.1

5 years

3
11
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[PATCH v1] lib/test_list: Follow existing pattern for a file name

by Andy Shevchenko

Test in lib/ either KUnit or not are named in the same pattern, i.e. test_*.c, except few ones. Rename list-test.c to test_list.c to follow this pattern. Note, current documentation doesn't specify any file name conventions, and we glad to stick with a current one in the subsystem. Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- lib/Makefile | 4 ++-- lib/{list-test.c => test_list.c} | 0 2 files changed, 2 insertions(+), 2 deletions(-) rename lib/{list-test.c => test_list.c} (100%) diff --git a/lib/Makefile b/lib/Makefile index 5ca03ba6ee45..e71abeea4a3e 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -350,6 +350,6 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ # KUnit tests obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o -obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o +obj-$(CONFIG_LIST_KUNIT_TEST) += test_list.o diff --git a/lib/list-test.c b/lib/test_list.c similarity index 100% rename from lib/list-test.c rename to lib/test_list.c -- 2.28.0

5 years

1
1
0 0

[PATCH v2] lib: kunit: add list_sort test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_list_sort, from `lib/test_list_sort.c` to KUnit tests. Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- v2: * fix KUNIT_TEST sufix; * make kconfig help more concise; * remove obsolete commit comments; * change Kconfig entries to be more adherent to KUnit documentation; --- lib/Kconfig.debug | 24 ++++--- lib/Makefile | 2 +- lib/{test_list_sort.c => list_sort_kunit.c} | 73 +++++++++++---------- 3 files changed, 53 insertions(+), 46 deletions(-) rename lib/{test_list_sort.c => list_sort_kunit.c} (62%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4f09c6505a2e..b4b1338c523a 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1905,16 +1905,6 @@ config LKDTM Documentation on how to use the module can be found in Documentation/fault-injection/provoke-crashes.rst -config TEST_LIST_SORT - tristate "Linked list sorting test" - depends on DEBUG_KERNEL || m - help - Enable this to turn on 'list_sort()' function test. This test is - executed only once during system boot (so affects only boot time), - or at module load time. - - If unsure, say N. - config TEST_MIN_HEAP tristate "Min heap test" depends on DEBUG_KERNEL || m @@ -2233,6 +2223,20 @@ config LIST_KUNIT_TEST If unsure, say N. +config LIST_SORT_KUNIT_TEST + tristate "KUnit Linked list sorting test" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this to turn on 'list_sort()' function test. This test is + executed only once during system boot (so affects only boot time), + or at module load time. + + 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 LINEAR_RANGES_TEST tristate "KUnit test for linear_ranges" depends on KUNIT diff --git a/lib/Makefile b/lib/Makefile index d862d41fdc3d..a00e26d34263 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -67,7 +67,6 @@ obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) UBSAN_SANITIZE_test_ubsan.o := y obj-$(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 @@ -341,5 +340,6 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ # KUnit tests obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LIST_SORT_KUNIT_TEST) += list_sort_kunit.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o diff --git a/lib/test_list_sort.c b/lib/list_sort_kunit.c similarity index 62% rename from lib/test_list_sort.c rename to lib/list_sort_kunit.c index 1f017d3b610e..20cbacbb7d6c 100644 --- a/lib/test_list_sort.c +++ b/lib/list_sort_kunit.c @@ -1,13 +1,10 @@ // SPDX-License-Identifier: GPL-2.0-only -#define pr_fmt(fmt) "list_sort_test: " fmt +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include <linux/kernel.h> #include <linux/list_sort.h> #include <linux/list.h> -#include <linux/module.h> -#include <linux/printk.h> -#include <linux/slab.h> #include <linux/random.h> +#include <kunit/test.h> /* * The pattern of set bits in the list length determines which cases @@ -29,28 +26,28 @@ struct debug_el { /* Array, containing pointers to all elements in the test list */ static struct debug_el **elts __initdata; -static int __init check(struct debug_el *ela, struct debug_el *elb) +static int __init check(struct kunit *context, struct debug_el *ela, struct debug_el *elb) { if (ela->serial >= TEST_LIST_LEN) { - pr_err("error: incorrect serial %d\n", ela->serial); + KUNIT_FAIL(context, "incorrect serial %d", ela->serial); return -EINVAL; } if (elb->serial >= TEST_LIST_LEN) { - pr_err("error: incorrect serial %d\n", elb->serial); + KUNIT_FAIL(context, "incorrect serial %d", elb->serial); return -EINVAL; } if (elts[ela->serial] != ela || elts[elb->serial] != elb) { - pr_err("error: phantom element\n"); + KUNIT_FAIL(context, "phantom element"); return -EINVAL; } if (ela->poison1 != TEST_POISON1 || ela->poison2 != TEST_POISON2) { - pr_err("error: bad poison: %#x/%#x\n", - ela->poison1, ela->poison2); + KUNIT_FAIL(context, "bad poison: %#x/%#x", + ela->poison1, ela->poison2); return -EINVAL; } if (elb->poison1 != TEST_POISON1 || elb->poison2 != TEST_POISON2) { - pr_err("error: bad poison: %#x/%#x\n", - elb->poison1, elb->poison2); + KUNIT_FAIL(context, "bad poison: %#x/%#x", + elb->poison1, elb->poison2); return -EINVAL; } return 0; @@ -63,27 +60,26 @@ static int __init cmp(void *priv, struct list_head *a, struct list_head *b) ela = container_of(a, struct debug_el, list); elb = container_of(b, struct debug_el, list); - check(ela, elb); + check(priv, ela, elb); return ela->value - elb->value; } -static int __init list_sort_test(void) +static void __init test_list_sort(struct kunit *context) { - int i, count = 1, err = -ENOMEM; + int i, count = 1; struct debug_el *el; struct list_head *cur; LIST_HEAD(head); - pr_debug("start testing list_sort()\n"); - elts = kcalloc(TEST_LIST_LEN, sizeof(*elts), GFP_KERNEL); - if (!elts) - return err; + KUNIT_ASSERT_FALSE_MSG(context, elts == NULL, "kcalloc failed"); for (i = 0; i < TEST_LIST_LEN; i++) { el = kmalloc(sizeof(*el), GFP_KERNEL); - if (!el) + if (!el) { + KUNIT_FAIL(context, "kmalloc failed"); goto exit; + } /* force some equivalencies */ el->value = prandom_u32() % (TEST_LIST_LEN / 3); @@ -94,55 +90,62 @@ static int __init list_sort_test(void) list_add_tail(&el->list, &head); } - list_sort(NULL, &head, cmp); + list_sort(context, &head, cmp); - err = -EINVAL; for (cur = head.next; cur->next != &head; cur = cur->next) { struct debug_el *el1; int cmp_result; if (cur->next->prev != cur) { - pr_err("error: list is corrupted\n"); + KUNIT_FAIL(context, "list is corrupted"); goto exit; } - cmp_result = cmp(NULL, cur, cur->next); + cmp_result = cmp(context, cur, cur->next); if (cmp_result > 0) { - pr_err("error: list is not sorted\n"); + KUNIT_FAIL(context, "list is not sorted"); goto exit; } el = container_of(cur, struct debug_el, list); el1 = container_of(cur->next, struct debug_el, list); if (cmp_result == 0 && el->serial >= el1->serial) { - pr_err("error: order of equivalent elements not " - "preserved\n"); + KUNIT_FAIL(context, "order of equivalent elements not preserved"); goto exit; } - if (check(el, el1)) { - pr_err("error: element check failed\n"); + if (check(context, el, el1)) { goto exit; } count++; } if (head.prev != cur) { - pr_err("error: list is corrupted\n"); + KUNIT_FAIL(context, "list is corrupted"); goto exit; } if (count != TEST_LIST_LEN) { - pr_err("error: bad list length %d", count); + KUNIT_FAIL(context, "bad list length %d", count); goto exit; } - err = 0; exit: for (i = 0; i < TEST_LIST_LEN; i++) kfree(elts[i]); kfree(elts); - return err; } -module_init(list_sort_test); + +static struct kunit_case __refdata list_sort_test_cases[] = { + KUNIT_CASE(test_list_sort), + {} +}; + +static struct kunit_suite list_sort_test_suite = { + .name = "list-sort", + .test_cases = list_sort_test_cases, +}; + +kunit_test_suites(&list_sort_test_suite); + MODULE_LICENSE("GPL"); base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years

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