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14249 discussions

[PATCH] selftests/mount_setattr: Remove redefinition of struct mount_attr

by Siddh Raman Pant

It is already included via sys/mount.h on line 10. GCC error reproducible by: make kselftest TARGETS="mount_setattr" mount_setattr_test.c:107:8: error: redefinition of ‘struct mount_attr’ 107 | struct mount_attr { | ^~~~~~~~~~ In file included from /usr/include/x86_64-linux-gnu/sys/mount.h:32, from mount_setattr_test.c:10: ../../../../usr/include/linux/mount.h:129:8: note: originally defined here 129 | struct mount_attr { | ^~~~~~~~~~ Signed-off-by: Siddh Raman Pant <code(a)siddh.me> --- tools/testing/selftests/mount_setattr/mount_setattr_test.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/tools/testing/selftests/mount_setattr/mount_setattr_test.c b/tools/testing/selftests/mount_setattr/mount_setattr_test.c index 8c5fea68ae67..582669ca38e9 100644 --- a/tools/testing/selftests/mount_setattr/mount_setattr_test.c +++ b/tools/testing/selftests/mount_setattr/mount_setattr_test.c @@ -103,13 +103,6 @@ #else #define __NR_mount_setattr 442 #endif - -struct mount_attr { - __u64 attr_set; - __u64 attr_clr; - __u64 propagation; - __u64 userns_fd; -}; #endif #ifndef __NR_open_tree -- 2.35.1

3 years

[PATCH v4 0/7] kselftest/alsa: pcm-test improvements

by Mark Brown

This series provides a bunch of quick updates which should make the coverage from pcm-test a bit more useful, it adds some support for skipping tests when the hardware/driver is unable to support the requested configuration, support for providing user visible descriptions and then expands the set of cases we cover to include more sample rates and channel counts. This should exercise switching between 8kHz and 44.1kHz based rates and ensure that clocking doesn't get confused by non-stereo channel counts, both of which are I expect common real world errors, at least for embedded cards. v4: - Rebase onto v6.2-rc1. v3: - "Rebase" onto Takashi's current tree (with a revert). - Include Jaroslav's changes to specify all tests in the configuration file parsing. - Add a new "description" field to the configuration instead of trying to name the tests. - Always run both default and per-system tests, logging our success at setting the per-system configurations as a separate test since they shouldn't fail. v2: - Rebase onto Takashi's current tree. - Tweak the buffer sizes for the newly added cases, don't be quite so ambitious in how big a buffer we request for 96kHz and don't go quite so small for 8kHz since some devices start hitting lower limits on period size and struggle to deliver accurate timing. To: Takashi Iwai <tiwai(a)suse.com> To: Jaroslav Kysela <perex(a)perex.cz> To: Shuah Khan <shuah(a)kernel.org> Cc: alsa-devel(a)alsa-project.org Cc: linux-kselftest(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Jaroslav Kysela (1): kselftest/alsa: pcm - move more configuration to configuration files Mark Brown (6): kselftest/alsa: pcm - Drop recent coverage improvement changes kselftest/alsa: pcm - Always run the default set of tests kselftest/alsa: pcm - skip tests when we fail to set params kselftest/alsa: pcm - Support optional description for tests kselftest/alsa: pcm - Provide descriptions for the default tests kselftest/alsa: pcm - Add more coverage by default tools/testing/selftests/alsa/Makefile | 2 +- tools/testing/selftests/alsa/alsa-local.h | 3 + tools/testing/selftests/alsa/conf.c | 26 ++- .../alsa/conf.d/Lenovo_ThinkPad_P1_Gen2.conf | 43 +++-- tools/testing/selftests/alsa/pcm-test.c | 205 ++++++++++++++------- tools/testing/selftests/alsa/pcm-test.conf | 63 +++++++ 6 files changed, 250 insertions(+), 92 deletions(-) --- base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2 change-id: 20221208-alsa-pcm-test-hacks-f6c1aa76bd2c Best regards, -- Mark Brown <broonie(a)kernel.org>

3 years

[PATCH v4] selftest/vm: add mremap expand merge offset test

by Lorenzo Stoakes

Add a test to assert that we can mremap() and expand a mapping starting from an offset within an existing mapping. We unmap the last page in a 3 page mapping to ensure that the remap should always succeed, before remapping from the 2nd page. This is additionally a regression test for the issue solved in "mm, mremap: fix mremap() expanding vma with addr inside vma" and confirmed to fail prior to the change and pass after it. Finally, this patch updates the existing mremap expand merge test to check error conditions and reduce code duplication between the two tests. Signed-off-by: Lorenzo Stoakes <lstoakes(a)gmail.com> --- tools/testing/selftests/vm/mremap_test.c | 117 ++++++++++++++++++----- 1 file changed, 95 insertions(+), 22 deletions(-) diff --git a/tools/testing/selftests/vm/mremap_test.c b/tools/testing/selftests/vm/mremap_test.c index 9496346973d4..a705dfe7b259 100644 --- a/tools/testing/selftests/vm/mremap_test.c +++ b/tools/testing/selftests/vm/mremap_test.c @@ -119,47 +119,109 @@ static unsigned long long get_mmap_min_addr(void) } /* - * This test validates that merge is called when expanding a mapping. - * Mapping containing three pages is created, middle page is unmapped - * and then the mapping containing the first page is expanded so that - * it fills the created hole. The two parts should merge creating - * single mapping with three pages. + * Using /proc/self/maps, assert that the specified address range is contained + * within a single mapping. */ -static void mremap_expand_merge(unsigned long page_size) +static bool is_range_mapped(FILE *maps_fp, void *start, void *end) { - char *test_name = "mremap expand merge"; - FILE *fp; char *line = NULL; size_t len = 0; bool success = false; - char *start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - - munmap(start + page_size, page_size); - mremap(start, page_size, 2 * page_size, 0); - fp = fopen("/proc/self/maps", "r"); - if (fp == NULL) { - ksft_test_result_fail("%s\n", test_name); - return; - } + rewind(maps_fp); - while (getline(&line, &len, fp) != -1) { + while (getline(&line, &len, maps_fp) != -1) { char *first = strtok(line, "- "); void *first_val = (void *)strtol(first, NULL, 16); char *second = strtok(NULL, "- "); void *second_val = (void *) strtol(second, NULL, 16); - if (first_val == start && second_val == start + 3 * page_size) { + if (first_val <= start && second_val >= end) { success = true; break; } } + + return success; +} + +/* + * This test validates that merge is called when expanding a mapping. + * Mapping containing three pages is created, middle page is unmapped + * and then the mapping containing the first page is expanded so that + * it fills the created hole. The two parts should merge creating + * single mapping with three pages. + */ +static void mremap_expand_merge(FILE *maps_fp, unsigned long page_size) +{ + char *test_name = "mremap expand merge"; + bool success = false; + char *remap, *start; + + start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + ksft_print_msg("mmap failed: %s\n", strerror(errno)); + goto out; + } + + munmap(start + page_size, page_size); + remap = mremap(start, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + ksft_print_msg("mremap failed: %s\n", strerror(errno)); + munmap(start, page_size); + munmap(start + 2 * page_size, page_size); + goto out; + } + + success = is_range_mapped(maps_fp, start, start + 3 * page_size); + munmap(start, 3 * page_size); + +out: + if (success) + ksft_test_result_pass("%s\n", test_name); + else + ksft_test_result_fail("%s\n", test_name); +} + +/* + * Similar to mremap_expand_merge() except instead of removing the middle page, + * we remove the last then attempt to remap offset from the second page. This + * should result in the mapping being restored to its former state. + */ +static void mremap_expand_merge_offset(FILE *maps_fp, unsigned long page_size) +{ + + char *test_name = "mremap expand merge offset"; + bool success = false; + char *remap, *start; + + start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + ksft_print_msg("mmap failed: %s\n", strerror(errno)); + goto out; + } + + /* Unmap final page to ensure we have space to expand. */ + munmap(start + 2 * page_size, page_size); + remap = mremap(start + page_size, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + ksft_print_msg("mremap failed: %s\n", strerror(errno)); + munmap(start, 2 * page_size); + goto out; + } + + success = is_range_mapped(maps_fp, start, start + 3 * page_size); + munmap(start, 3 * page_size); + +out: if (success) ksft_test_result_pass("%s\n", test_name); else ksft_test_result_fail("%s\n", test_name); - fclose(fp); } /* @@ -385,6 +447,7 @@ int main(int argc, char **argv) struct test perf_test_cases[MAX_PERF_TEST]; int page_size; time_t t; + FILE *maps_fp; pattern_seed = (unsigned int) time(&t); @@ -458,7 +521,17 @@ int main(int argc, char **argv) run_mremap_test_case(test_cases[i], &failures, threshold_mb, pattern_seed); - mremap_expand_merge(page_size); + maps_fp = fopen("/proc/self/maps", "r"); + + if (maps_fp == NULL) { + ksft_print_msg("Failed to read /proc/self/maps: %s\n", strerror(errno)); + exit(KSFT_FAIL); + } + + mremap_expand_merge(maps_fp, page_size); + mremap_expand_merge_offset(maps_fp, page_size); + + fclose(maps_fp); if (run_perf_tests) { ksft_print_msg("\n%s\n", -- 2.39.0

3 years

[PATCH v3] selftest/vm: add mremap expand merge offset test

by Lorenzo Stoakes

Add a test to assert that we can mremap() and expand a mapping starting from an offset within an existing mapping. We unmap the last page in a 3 page mapping to ensure that the remap should always succeed, before remapping from the 2nd page. This is additionally a regression test for the issue solved in "mm, mremap: fix mremap() expanding vma with addr inside vma" and confirmed to fail prior to the change and pass after it. Finally, this patch updates the existing mremap expand merge test to check error conditions and reduce code duplication between the two tests. Signed-off-by: Lorenzo Stoakes <lstoakes(a)gmail.com> --- tools/testing/selftests/vm/mremap_test.c | 116 ++++++++++++++++++----- 1 file changed, 94 insertions(+), 22 deletions(-) diff --git a/tools/testing/selftests/vm/mremap_test.c b/tools/testing/selftests/vm/mremap_test.c index 9496346973d4..b8e427b2538c 100644 --- a/tools/testing/selftests/vm/mremap_test.c +++ b/tools/testing/selftests/vm/mremap_test.c @@ -119,47 +119,109 @@ static unsigned long long get_mmap_min_addr(void) } /* - * This test validates that merge is called when expanding a mapping. - * Mapping containing three pages is created, middle page is unmapped - * and then the mapping containing the first page is expanded so that - * it fills the created hole. The two parts should merge creating - * single mapping with three pages. + * Using /proc/self/maps, assert that the specified address range is contained + * within a single mapping. */ -static void mremap_expand_merge(unsigned long page_size) +static bool is_range_mapped(FILE *maps_fp, void *start, void *end) { - char *test_name = "mremap expand merge"; - FILE *fp; char *line = NULL; size_t len = 0; bool success = false; - char *start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - - munmap(start + page_size, page_size); - mremap(start, page_size, 2 * page_size, 0); - fp = fopen("/proc/self/maps", "r"); - if (fp == NULL) { - ksft_test_result_fail("%s\n", test_name); - return; - } + rewind(maps_fp); - while (getline(&line, &len, fp) != -1) { + while (getline(&line, &len, maps_fp) != -1) { char *first = strtok(line, "- "); void *first_val = (void *)strtol(first, NULL, 16); char *second = strtok(NULL, "- "); void *second_val = (void *) strtol(second, NULL, 16); - if (first_val == start && second_val == start + 3 * page_size) { + if (first_val <= start && second_val >= end) { success = true; break; } } + + return success; +} + +/* + * This test validates that merge is called when expanding a mapping. + * Mapping containing three pages is created, middle page is unmapped + * and then the mapping containing the first page is expanded so that + * it fills the created hole. The two parts should merge creating + * single mapping with three pages. + */ +static void mremap_expand_merge(FILE *maps_fp, unsigned long page_size) +{ + char *test_name = "mremap expand merge"; + bool success = false; + char *remap, *start; + + start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + ksft_print_msg("mmap failed: %s\n", strerror(errno)); + goto out; + } + + munmap(start + page_size, page_size); + remap = mremap(start, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + ksft_print_msg("mremap failed: %s\n", strerror(errno)); + munmap(start, page_size); + munmap(start + 2 * page_size, page_size); + goto out; + } + + success = is_range_mapped(maps_fp, start, start + 3 * page_size); + munmap(start, 3 * page_size); + +out: + if (success) + ksft_test_result_pass("%s\n", test_name); + else + ksft_test_result_fail("%s\n", test_name); +} + +/* + * Similar to mremap_expand_merge() except instead of removing the middle page, + * we remove the last then attempt to remap offset from the second page. This + * should result in the mapping being restored to its former state. + */ +static void mremap_expand_merge_offset(FILE *maps_fp, unsigned long page_size) +{ + + char *test_name = "mremap expand merge offset"; + bool success = false; + char *remap, *start; + + start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + ksft_print_msg("mmap failed: %s\n", strerror(errno)); + goto out; + } + + /* Unmap final page to ensure we have space to expand. */ + munmap(start + 2 * page_size, page_size); + remap = mremap(start + page_size, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + ksft_print_msg("mremap failed: %s\n", strerror(errno)); + munmap(start, 2 * page_size); + goto out; + } + + success = is_range_mapped(maps_fp, start, start + 3 * page_size); + munmap(start, 3 * page_size); + +out: if (success) ksft_test_result_pass("%s\n", test_name); else ksft_test_result_fail("%s\n", test_name); - fclose(fp); } /* @@ -385,6 +447,7 @@ int main(int argc, char **argv) struct test perf_test_cases[MAX_PERF_TEST]; int page_size; time_t t; + FILE *maps_fp; pattern_seed = (unsigned int) time(&t); @@ -458,7 +521,16 @@ int main(int argc, char **argv) run_mremap_test_case(test_cases[i], &failures, threshold_mb, pattern_seed); - mremap_expand_merge(page_size); + maps_fp = fopen("/proc/self/maps", "r"); + if (maps_fp == NULL) { + ksft_print_msg("Failed to read /proc/self/maps: %s\n", strerror(errno)); + exit(KSFT_FAIL); + } else { + mremap_expand_merge(maps_fp, page_size); + mremap_expand_merge_offset(maps_fp, page_size); + + fclose(maps_fp); + } if (run_perf_tests) { ksft_print_msg("\n%s\n", -- 2.39.0

3 years

[PATCH v2] selftest/vm: add mremap expand merge offset test

by Lorenzo Stoakes

Add a test to assert that we can mremap() and expand a mapping starting from an offset within an existing mapping. We unmap the last page in a 3 page mapping to ensure that the remap should always succeed, before remapping from the 2nd page. This is additionally a regression test for the issue solved in "mm, mremap: fix mremap() expanding vma with addr inside vma" and confirmed to fail prior to the change and pass after it. Finally, this patch updates the existing mremap expand merge test to check error conditions and reduce code duplication between the two tests. Signed-off-by: Lorenzo Stoakes <lstoakes(a)gmail.com> --- tools/testing/selftests/vm/mremap_test.c | 115 ++++++++++++++++++----- 1 file changed, 93 insertions(+), 22 deletions(-) diff --git a/tools/testing/selftests/vm/mremap_test.c b/tools/testing/selftests/vm/mremap_test.c index 9496346973d4..8946283b0ba5 100644 --- a/tools/testing/selftests/vm/mremap_test.c +++ b/tools/testing/selftests/vm/mremap_test.c @@ -119,47 +119,109 @@ static unsigned long long get_mmap_min_addr(void) } /* - * This test validates that merge is called when expanding a mapping. - * Mapping containing three pages is created, middle page is unmapped - * and then the mapping containing the first page is expanded so that - * it fills the created hole. The two parts should merge creating - * single mapping with three pages. + * Using /proc/self/maps, assert that the specified address range is contained + * within a single mapping. */ -static void mremap_expand_merge(unsigned long page_size) +static bool is_range_mapped(FILE *maps_fp, void *start, void *end) { - char *test_name = "mremap expand merge"; - FILE *fp; char *line = NULL; size_t len = 0; bool success = false; - char *start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - - munmap(start + page_size, page_size); - mremap(start, page_size, 2 * page_size, 0); - fp = fopen("/proc/self/maps", "r"); - if (fp == NULL) { - ksft_test_result_fail("%s\n", test_name); - return; - } + rewind(maps_fp); - while (getline(&line, &len, fp) != -1) { + while (getline(&line, &len, maps_fp) != -1) { char *first = strtok(line, "- "); void *first_val = (void *)strtol(first, NULL, 16); char *second = strtok(NULL, "- "); void *second_val = (void *) strtol(second, NULL, 16); - if (first_val == start && second_val == start + 3 * page_size) { + if (first_val <= start && second_val >= end) { success = true; break; } } + + return success; +} + +/* + * This test validates that merge is called when expanding a mapping. + * Mapping containing three pages is created, middle page is unmapped + * and then the mapping containing the first page is expanded so that + * it fills the created hole. The two parts should merge creating + * single mapping with three pages. + */ +static void mremap_expand_merge(FILE *maps_fp, unsigned long page_size) +{ + char *test_name = "mremap expand merge"; + bool success = false; + char *remap, *start; + + start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + ksft_print_msg("mmap failed: %s\n", strerror(errno)); + goto out; + } + + munmap(start + page_size, page_size); + remap = mremap(start, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + ksft_print_msg("mremap failed: %s\n", strerror(errno)); + munmap(start, page_size); + munmap(start + 2 * page_size, page_size); + goto out; + } + + success = is_range_mapped(maps_fp, start, start + 3 * page_size); + munmap(start, 3 * page_size); + +out: + if (success) + ksft_test_result_pass("%s\n", test_name); + else + ksft_test_result_fail("%s\n", test_name); +} + +/* + * Similar to mremap_expand_merge() except instead of removing the middle page, + * we remove the last then attempt to remap offset from the second page. This + * should result in the mapping being restored to its former state. + */ +static void mremap_expand_merge_offset(FILE *maps_fp, unsigned long page_size) +{ + + char *test_name = "mremap expand merge offset"; + bool success = false; + char *remap, *start; + + start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + ksft_print_msg("mmap failed: %s\n", strerror(errno)); + goto out; + } + + /* Unmap final page to ensure we have space to expand. */ + munmap(start + 2 * page_size, page_size); + remap = mremap(start + page_size, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + ksft_print_msg("mremap failed: %s\n", strerror(errno)); + munmap(start, 2 * page_size); + goto out; + } + + success = is_range_mapped(maps_fp, start, start + 3 * page_size); + munmap(start, 3 * page_size); + +out: if (success) ksft_test_result_pass("%s\n", test_name); else ksft_test_result_fail("%s\n", test_name); - fclose(fp); } /* @@ -385,6 +447,7 @@ int main(int argc, char **argv) struct test perf_test_cases[MAX_PERF_TEST]; int page_size; time_t t; + FILE *maps_fp; pattern_seed = (unsigned int) time(&t); @@ -458,7 +521,15 @@ int main(int argc, char **argv) run_mremap_test_case(test_cases[i], &failures, threshold_mb, pattern_seed); - mremap_expand_merge(page_size); + maps_fp = fopen("/proc/self/maps", "r"); + if (maps_fp == NULL) { + ksft_print_msg("Failed to read /proc/self/maps: %s\n", strerror(errno)); + } else { + mremap_expand_merge(maps_fp, page_size); + mremap_expand_merge_offset(maps_fp, page_size); + + fclose(maps_fp); + } if (run_perf_tests) { ksft_print_msg("\n%s\n", -- 2.39.0

3 years

[PATCH] selftest/vm: add mremap expand merge offset test

by Lorenzo Stoakes

Add a test to assert that we can mremap() and expand a mapping starting from an offset within an existing mapping. We unmap the last page in a 3 page mapping to ensure that the remap should always succeed, before remapping from the 2nd page. This is additionally a regression test for the issue solved in "mm, mremap: fix mremap() expanding vma with addr inside vma" and confirmed to fail prior to the change and pass after it. Finally, this patch updates the existing mremap expand merge test to check error conditions and reduce code duplication between the two tests. Signed-off-by: Lorenzo Stoakes <lstoakes(a)gmail.com> --- tools/testing/selftests/vm/mremap_test.c | 111 +++++++++++++++++++---- 1 file changed, 93 insertions(+), 18 deletions(-) diff --git a/tools/testing/selftests/vm/mremap_test.c b/tools/testing/selftests/vm/mremap_test.c index 9496346973d4..28a17d4e8afd 100644 --- a/tools/testing/selftests/vm/mremap_test.c +++ b/tools/testing/selftests/vm/mremap_test.c @@ -119,30 +119,19 @@ static unsigned long long get_mmap_min_addr(void) } /* - * This test validates that merge is called when expanding a mapping. - * Mapping containing three pages is created, middle page is unmapped - * and then the mapping containing the first page is expanded so that - * it fills the created hole. The two parts should merge creating - * single mapping with three pages. + * Using /proc/self/maps, assert that the specified address range is contained + * within a single mapping. */ -static void mremap_expand_merge(unsigned long page_size) +static bool is_range_mapped(void *start, void *end) { - char *test_name = "mremap expand merge"; FILE *fp; char *line = NULL; size_t len = 0; bool success = false; - char *start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - - munmap(start + page_size, page_size); - mremap(start, page_size, 2 * page_size, 0); fp = fopen("/proc/self/maps", "r"); - if (fp == NULL) { - ksft_test_result_fail("%s\n", test_name); - return; - } + if (fp == NULL) + return false; while (getline(&line, &len, fp) != -1) { char *first = strtok(line, "- "); @@ -150,16 +139,101 @@ static void mremap_expand_merge(unsigned long page_size) char *second = strtok(NULL, "- "); void *second_val = (void *) strtol(second, NULL, 16); - if (first_val == start && second_val == start + 3 * page_size) { + if (first_val <= start && second_val >= end) { success = true; break; } } + + fclose(fp); + return success; +} + +/* + * This test validates that merge is called when expanding a mapping. + * Mapping containing three pages is created, middle page is unmapped + * and then the mapping containing the first page is expanded so that + * it fills the created hole. The two parts should merge creating + * single mapping with three pages. + */ +static void mremap_expand_merge(unsigned long page_size) +{ + char *test_name = "mremap expand merge"; + bool success = false; + int errsv = 0; + char *remap; + char *start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + errsv = errno; + goto error; + } + + munmap(start + page_size, page_size); + remap = mremap(start, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + errsv = errno; + munmap(start, page_size); + munmap(start + 2 * page_size, page_size); + goto error; + } + + success = is_range_mapped(start, start + 3 * page_size); + + munmap(start, 3 * page_size); + goto out; + +error: + ksft_print_msg("Unexpected mapping/remapping error: %s\n", + strerror(errsv)); +out: + if (success) + ksft_test_result_pass("%s\n", test_name); + else + ksft_test_result_fail("%s\n", test_name); +} + +/* + * Similar to mremap_expand_merge() except instead of removing the middle page, + * we remove the last then attempt to remap offset from the second page. This + * should result in the mapping being restored to its former state. + */ +static void mremap_expand_merge_offset(unsigned long page_size) +{ + + char *test_name = "mremap expand merge offset"; + bool success = false; + int errsv = 0; + char *remap; + char *start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (start == MAP_FAILED) { + errsv = errno; + goto error; + } + + /* Unmap final page to ensure we have space to expand. */ + munmap(start + 2 * page_size, page_size); + remap = mremap(start + page_size, page_size, 2 * page_size, 0); + if (remap == MAP_FAILED) { + errsv = errno; + munmap(start, 2 * page_size); + goto error; + } + + success = is_range_mapped(start, start + 3 * page_size); + goto out; + +error: + ksft_print_msg("Unexpected mapping/remapping error: %s\n", + strerror(errsv)); +out: if (success) ksft_test_result_pass("%s\n", test_name); else ksft_test_result_fail("%s\n", test_name); - fclose(fp); } /* @@ -459,6 +533,7 @@ int main(int argc, char **argv) pattern_seed); mremap_expand_merge(page_size); + mremap_expand_merge_offset(page_size); if (run_perf_tests) { ksft_print_msg("\n%s\n", -- 2.38.1

3 years

[PATCH 0/2] selftests: net: fix for arp_ndisc_evict_nocarrier test

by Po-Hsu Lin

This patchset will fix a false-positive issue caused by the command in cleanup_v6() of the arp_ndisc_evict_nocarrier test. Also, it will make the test to return a non-zero value for any failure reported in the test for us to avoid false-negative results. Po-Hsu Lin (2): selftests: net: fix cleanup_v6() for arp_ndisc_evict_nocarrier selftests: net: return non-zero for failures reported in arp_ndisc_evict_nocarrier tools/testing/selftests/net/arp_ndisc_evict_nocarrier.sh | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) -- 2.7.4

3 years

[PATCH] selftests: net: fix cmsg_so_mark.sh test hang

by Po-Hsu Lin

This cmsg_so_mark.sh test will hang on non-amd64 systems because of the infinity loop for argument parsing in cmsg_sender. Variable "o" in cs_parse_args() for taking getopt() should be an int, otherwise it will be 255 when getopt() returns -1 on non-amd64 system and thus causing infinity loop. Link: https://lore.kernel.org/lkml/CA+G9fYsM2k7mrF7W4V_TrZ-qDauWM394=8yEJ=-t1oUg8… Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/net/cmsg_sender.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/cmsg_sender.c b/tools/testing/selftests/net/cmsg_sender.c index 75dd83e..24b21b1 100644 --- a/tools/testing/selftests/net/cmsg_sender.c +++ b/tools/testing/selftests/net/cmsg_sender.c @@ -110,7 +110,7 @@ static void __attribute__((noreturn)) cs_usage(const char *bin) static void cs_parse_args(int argc, char *argv[]) { - char o; + int o; while ((o = getopt(argc, argv, "46sS:p:m:M:d:tf:F:c:C:l:L:H:")) != -1) { switch (o) { -- 2.7.4

3 years

[GIT PULL] KUnit fixes update for Linux 6.2-rc2

by Shuah Khan

Hi Linus, Please pull the following KUnit fixes update for Linux 6.2-rc2. This KUnit update for Linux 6.2-rc2 consists of: - alloc_string_stream_fragment() error path fix to free before returning a failure. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 1b929c02afd37871d5afb9d498426f83432e71c2: Linux 6.2-rc1 (2022-12-25 13:41:39 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-fixes-6.2-rc2 for you to fetch changes up to 93ef83050e597634d2c7dc838a28caf5137b9404: kunit: alloc_string_stream_fragment error handling bug fix (2022-12-26 16:01:36 -0700) ---------------------------------------------------------------- linux-kselftest-kunit-fixes-6.2-rc2 This KUnit update for Linux 6.2-rc2 consists of: - alloc_string_stream_fragment() error path fix to free before returning a failure. ---------------------------------------------------------------- YoungJun.park (1): kunit: alloc_string_stream_fragment error handling bug fix lib/kunit/string-stream.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) ----------------------------------------------------------------

3 years

[PATCH bpf-next] selftests/bpf: move struct definitions out of function params

by James Hilliard

Anonymous structs can't be declared inside function parameter definitions in current c standards, however clang doesn't detect this condition currently while GCC does. Details: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108189 Fixes errors like: progs/btf_dump_test_case_bitfields.c:85:7: error: anonymous struct declared inside parameter list will not be visible outside of this definition or declaration [-Werror] 85 | int f(struct { | ^~~~~~ Signed-off-by: James Hilliard <james.hilliard1(a)gmail.com> --- .../bpf/progs/btf_dump_test_case_bitfields.c | 9 ++++-- .../progs/btf_dump_test_case_namespacing.c | 10 ++++--- .../bpf/progs/btf_dump_test_case_packing.c | 10 ++++--- .../bpf/progs/btf_dump_test_case_padding.c | 10 ++++--- .../bpf/progs/btf_dump_test_case_syntax.c | 30 +++++++++++++------ 5 files changed, 46 insertions(+), 23 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c index e01690618e1e..c75f6bd06a49 100644 --- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c +++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c @@ -82,11 +82,16 @@ struct bitfield_flushed { long b: 16; }; -int f(struct { +/* ----- START-EXPECTED-OUTPUT ----- */ +struct root_struct { struct bitfields_only_mixed_types _1; struct bitfield_mixed_with_others _2; struct bitfield_flushed _3; -} *_) +}; + +/* ------ END-EXPECTED-OUTPUT ------ */ + +int f(struct root_struct *_) { return 0; } diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c index 92a4ad428710..d7cf2a8487c9 100644 --- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c +++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c @@ -49,9 +49,7 @@ typedef int Y; typedef int Z; -/*------ END-EXPECTED-OUTPUT ------ */ - -int f(struct { +struct root_struct { struct S _1; S _2; union U _3; @@ -67,7 +65,11 @@ int f(struct { X xx; Y yy; Z zz; -} *_) +}; + +/*------ END-EXPECTED-OUTPUT ------ */ + +int f(struct root_struct *_) { return 0; } diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c index 7998f27df7dd..e039ceb50c43 100644 --- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c +++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c @@ -132,9 +132,7 @@ struct outer_packed_struct { struct nested_packed_struct b; } __attribute__((packed)); -/* ------ END-EXPECTED-OUTPUT ------ */ - -int f(struct { +struct root_struct { struct packed_trailing_space _1; struct non_packed_trailing_space _2; struct packed_fields _3; @@ -147,7 +145,11 @@ int f(struct { struct usb_host_endpoint _10; struct outer_nonpacked_struct _11; struct outer_packed_struct _12; -} *_) +}; + +/* ------ END-EXPECTED-OUTPUT ------ */ + +int f(struct root_struct *_) { return 0; } diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c index 79276fbe454a..2ca46ad8d66a 100644 --- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c +++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c @@ -220,9 +220,7 @@ struct outer_mixed_but_unpacked { struct nested_packed b2; }; -/* ------ END-EXPECTED-OUTPUT ------ */ - -int f(struct { +struct root_struct { struct padded_implicitly _1; struct padded_explicitly _2; struct padded_a_lot _3; @@ -243,7 +241,11 @@ int f(struct { struct ib_wc _201; struct acpi_object_method _202; struct outer_mixed_but_unpacked _203; -} *_) +} __attribute__((packed)); + +/* ------ END-EXPECTED-OUTPUT ------ */ + +int f(struct root_struct *_) { return 0; } diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c index 26fffb02ed10..3e31df7cecc6 100644 --- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c +++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c @@ -104,24 +104,24 @@ typedef void (*printf_fn_t)(const char *, ...); * typedef const fn_output_inner_t fn_ptr_arr2_t[5]; */ /* ----- START-EXPECTED-OUTPUT ----- */ -typedef char * const * (*fn_ptr2_t)(struct { - int a; -}, int (*)(int)); +struct struct_a; + +typedef char * const * (*fn_ptr2_t)(struct struct_a, int (*)(int)); + +struct struct_c; + +struct struct_h; typedef struct { int a; - void (*b)(int, struct { - int c; - }, union { + void (*b)(int, struct struct_c, union { char d; int e[5]; }); } (*fn_complex_t)(union { void *f; char g[16]; -}, struct { - int h; -}); +}, struct struct_h); typedef void (* (*signal_t)(int, void (*)(int)))(int); @@ -272,6 +272,18 @@ struct root_struct { struct float_struct _15; }; +struct struct_a { + int a; +}; + +struct struct_h { + int h; +}; + +struct struct_c { + int c; +}; + /* ------ END-EXPECTED-OUTPUT ------ */ int f(struct root_struct *s) -- 2.34.1

3 years

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