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Diffstat (limited to 'lib/kunit_iov_iter.c')
| -rw-r--r-- | lib/kunit_iov_iter.c | 777 |
1 files changed, 0 insertions, 777 deletions
diff --git a/lib/kunit_iov_iter.c b/lib/kunit_iov_iter.c deleted file mode 100644 index 859b67c4d697..000000000000 --- a/lib/kunit_iov_iter.c +++ /dev/null @@ -1,777 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* I/O iterator tests. This can only test kernel-backed iterator types. - * - * Copyright (C) 2023 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/vmalloc.h> -#include <linux/mm.h> -#include <linux/uio.h> -#include <linux/bvec.h> -#include <kunit/test.h> - -MODULE_DESCRIPTION("iov_iter testing"); -MODULE_AUTHOR("David Howells <dhowells@redhat.com>"); -MODULE_LICENSE("GPL"); - -struct kvec_test_range { - int from, to; -}; - -static const struct kvec_test_range kvec_test_ranges[] = { - { 0x00002, 0x00002 }, - { 0x00027, 0x03000 }, - { 0x05193, 0x18794 }, - { 0x20000, 0x20000 }, - { 0x20000, 0x24000 }, - { 0x24000, 0x27001 }, - { 0x29000, 0xffffb }, - { 0xffffd, 0xffffe }, - { -1 } -}; - -static inline u8 pattern(unsigned long x) -{ - return x & 0xff; -} - -static void iov_kunit_unmap(void *data) -{ - vunmap(data); -} - -static void *__init iov_kunit_create_buffer(struct kunit *test, - struct page ***ppages, - size_t npages) -{ - struct page **pages; - unsigned long got; - void *buffer; - - pages = kunit_kcalloc(test, npages, sizeof(struct page *), GFP_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pages); - *ppages = pages; - - got = alloc_pages_bulk_array(GFP_KERNEL, npages, pages); - if (got != npages) { - release_pages(pages, got); - KUNIT_ASSERT_EQ(test, got, npages); - } - - buffer = vmap(pages, npages, VM_MAP | VM_MAP_PUT_PAGES, PAGE_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buffer); - - kunit_add_action_or_reset(test, iov_kunit_unmap, buffer); - return buffer; -} - -static void __init iov_kunit_load_kvec(struct kunit *test, - struct iov_iter *iter, int dir, - struct kvec *kvec, unsigned int kvmax, - void *buffer, size_t bufsize, - const struct kvec_test_range *pr) -{ - size_t size = 0; - int i; - - for (i = 0; i < kvmax; i++, pr++) { - if (pr->from < 0) - break; - KUNIT_ASSERT_GE(test, pr->to, pr->from); - KUNIT_ASSERT_LE(test, pr->to, bufsize); - kvec[i].iov_base = buffer + pr->from; - kvec[i].iov_len = pr->to - pr->from; - size += pr->to - pr->from; - } - KUNIT_ASSERT_LE(test, size, bufsize); - - iov_iter_kvec(iter, dir, kvec, i, size); -} - -/* - * Test copying to a ITER_KVEC-type iterator. - */ -static void __init iov_kunit_copy_to_kvec(struct kunit *test) -{ - const struct kvec_test_range *pr; - struct iov_iter iter; - struct page **spages, **bpages; - struct kvec kvec[8]; - u8 *scratch, *buffer; - size_t bufsize, npages, size, copied; - int i, patt; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - scratch = iov_kunit_create_buffer(test, &spages, npages); - for (i = 0; i < bufsize; i++) - scratch[i] = pattern(i); - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - memset(buffer, 0, bufsize); - - iov_kunit_load_kvec(test, &iter, READ, kvec, ARRAY_SIZE(kvec), - buffer, bufsize, kvec_test_ranges); - size = iter.count; - - copied = copy_to_iter(scratch, size, &iter); - - KUNIT_EXPECT_EQ(test, copied, size); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); - - /* Build the expected image in the scratch buffer. */ - patt = 0; - memset(scratch, 0, bufsize); - for (pr = kvec_test_ranges; pr->from >= 0; pr++) - for (i = pr->from; i < pr->to; i++) - scratch[i] = pattern(patt++); - - /* Compare the images */ - for (i = 0; i < bufsize; i++) { - KUNIT_EXPECT_EQ_MSG(test, buffer[i], scratch[i], "at i=%x", i); - if (buffer[i] != scratch[i]) - return; - } - - KUNIT_SUCCEED(); -} - -/* - * Test copying from a ITER_KVEC-type iterator. - */ -static void __init iov_kunit_copy_from_kvec(struct kunit *test) -{ - const struct kvec_test_range *pr; - struct iov_iter iter; - struct page **spages, **bpages; - struct kvec kvec[8]; - u8 *scratch, *buffer; - size_t bufsize, npages, size, copied; - int i, j; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - for (i = 0; i < bufsize; i++) - buffer[i] = pattern(i); - - scratch = iov_kunit_create_buffer(test, &spages, npages); - memset(scratch, 0, bufsize); - - iov_kunit_load_kvec(test, &iter, WRITE, kvec, ARRAY_SIZE(kvec), - buffer, bufsize, kvec_test_ranges); - size = min(iter.count, bufsize); - - copied = copy_from_iter(scratch, size, &iter); - - KUNIT_EXPECT_EQ(test, copied, size); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); - - /* Build the expected image in the main buffer. */ - i = 0; - memset(buffer, 0, bufsize); - for (pr = kvec_test_ranges; pr->from >= 0; pr++) { - for (j = pr->from; j < pr->to; j++) { - buffer[i++] = pattern(j); - if (i >= bufsize) - goto stop; - } - } -stop: - - /* Compare the images */ - for (i = 0; i < bufsize; i++) { - KUNIT_EXPECT_EQ_MSG(test, scratch[i], buffer[i], "at i=%x", i); - if (scratch[i] != buffer[i]) - return; - } - - KUNIT_SUCCEED(); -} - -struct bvec_test_range { - int page, from, to; -}; - -static const struct bvec_test_range bvec_test_ranges[] = { - { 0, 0x0002, 0x0002 }, - { 1, 0x0027, 0x0893 }, - { 2, 0x0193, 0x0794 }, - { 3, 0x0000, 0x1000 }, - { 4, 0x0000, 0x1000 }, - { 5, 0x0000, 0x1000 }, - { 6, 0x0000, 0x0ffb }, - { 6, 0x0ffd, 0x0ffe }, - { -1, -1, -1 } -}; - -static void __init iov_kunit_load_bvec(struct kunit *test, - struct iov_iter *iter, int dir, - struct bio_vec *bvec, unsigned int bvmax, - struct page **pages, size_t npages, - size_t bufsize, - const struct bvec_test_range *pr) -{ - struct page *can_merge = NULL, *page; - size_t size = 0; - int i; - - for (i = 0; i < bvmax; i++, pr++) { - if (pr->from < 0) - break; - KUNIT_ASSERT_LT(test, pr->page, npages); - KUNIT_ASSERT_LT(test, pr->page * PAGE_SIZE, bufsize); - KUNIT_ASSERT_GE(test, pr->from, 0); - KUNIT_ASSERT_GE(test, pr->to, pr->from); - KUNIT_ASSERT_LE(test, pr->to, PAGE_SIZE); - - page = pages[pr->page]; - if (pr->from == 0 && pr->from != pr->to && page == can_merge) { - i--; - bvec[i].bv_len += pr->to; - } else { - bvec_set_page(&bvec[i], page, pr->to - pr->from, pr->from); - } - - size += pr->to - pr->from; - if ((pr->to & ~PAGE_MASK) == 0) - can_merge = page + pr->to / PAGE_SIZE; - else - can_merge = NULL; - } - - iov_iter_bvec(iter, dir, bvec, i, size); -} - -/* - * Test copying to a ITER_BVEC-type iterator. - */ -static void __init iov_kunit_copy_to_bvec(struct kunit *test) -{ - const struct bvec_test_range *pr; - struct iov_iter iter; - struct bio_vec bvec[8]; - struct page **spages, **bpages; - u8 *scratch, *buffer; - size_t bufsize, npages, size, copied; - int i, b, patt; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - scratch = iov_kunit_create_buffer(test, &spages, npages); - for (i = 0; i < bufsize; i++) - scratch[i] = pattern(i); - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - memset(buffer, 0, bufsize); - - iov_kunit_load_bvec(test, &iter, READ, bvec, ARRAY_SIZE(bvec), - bpages, npages, bufsize, bvec_test_ranges); - size = iter.count; - - copied = copy_to_iter(scratch, size, &iter); - - KUNIT_EXPECT_EQ(test, copied, size); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); - - /* Build the expected image in the scratch buffer. */ - b = 0; - patt = 0; - memset(scratch, 0, bufsize); - for (pr = bvec_test_ranges; pr->from >= 0; pr++, b++) { - u8 *p = scratch + pr->page * PAGE_SIZE; - - for (i = pr->from; i < pr->to; i++) - p[i] = pattern(patt++); - } - - /* Compare the images */ - for (i = 0; i < bufsize; i++) { - KUNIT_EXPECT_EQ_MSG(test, buffer[i], scratch[i], "at i=%x", i); - if (buffer[i] != scratch[i]) - return; - } - - KUNIT_SUCCEED(); -} - -/* - * Test copying from a ITER_BVEC-type iterator. - */ -static void __init iov_kunit_copy_from_bvec(struct kunit *test) -{ - const struct bvec_test_range *pr; - struct iov_iter iter; - struct bio_vec bvec[8]; - struct page **spages, **bpages; - u8 *scratch, *buffer; - size_t bufsize, npages, size, copied; - int i, j; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - for (i = 0; i < bufsize; i++) - buffer[i] = pattern(i); - - scratch = iov_kunit_create_buffer(test, &spages, npages); - memset(scratch, 0, bufsize); - - iov_kunit_load_bvec(test, &iter, WRITE, bvec, ARRAY_SIZE(bvec), - bpages, npages, bufsize, bvec_test_ranges); - size = iter.count; - - copied = copy_from_iter(scratch, size, &iter); - - KUNIT_EXPECT_EQ(test, copied, size); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); - - /* Build the expected image in the main buffer. */ - i = 0; - memset(buffer, 0, bufsize); - for (pr = bvec_test_ranges; pr->from >= 0; pr++) { - size_t patt = pr->page * PAGE_SIZE; - - for (j = pr->from; j < pr->to; j++) { - buffer[i++] = pattern(patt + j); - if (i >= bufsize) - goto stop; - } - } -stop: - - /* Compare the images */ - for (i = 0; i < bufsize; i++) { - KUNIT_EXPECT_EQ_MSG(test, scratch[i], buffer[i], "at i=%x", i); - if (scratch[i] != buffer[i]) - return; - } - - KUNIT_SUCCEED(); -} - -static void iov_kunit_destroy_xarray(void *data) -{ - struct xarray *xarray = data; - - xa_destroy(xarray); - kfree(xarray); -} - -static void __init iov_kunit_load_xarray(struct kunit *test, - struct iov_iter *iter, int dir, - struct xarray *xarray, - struct page **pages, size_t npages) -{ - size_t size = 0; - int i; - - for (i = 0; i < npages; i++) { - void *x = xa_store(xarray, i, pages[i], GFP_KERNEL); - - KUNIT_ASSERT_FALSE(test, xa_is_err(x)); - size += PAGE_SIZE; - } - iov_iter_xarray(iter, dir, xarray, 0, size); -} - -static struct xarray *iov_kunit_create_xarray(struct kunit *test) -{ - struct xarray *xarray; - - xarray = kzalloc(sizeof(struct xarray), GFP_KERNEL); - xa_init(xarray); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xarray); - kunit_add_action_or_reset(test, iov_kunit_destroy_xarray, xarray); - return xarray; -} - -/* - * Test copying to a ITER_XARRAY-type iterator. - */ -static void __init iov_kunit_copy_to_xarray(struct kunit *test) -{ - const struct kvec_test_range *pr; - struct iov_iter iter; - struct xarray *xarray; - struct page **spages, **bpages; - u8 *scratch, *buffer; - size_t bufsize, npages, size, copied; - int i, patt; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - xarray = iov_kunit_create_xarray(test); - - scratch = iov_kunit_create_buffer(test, &spages, npages); - for (i = 0; i < bufsize; i++) - scratch[i] = pattern(i); - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - memset(buffer, 0, bufsize); - - iov_kunit_load_xarray(test, &iter, READ, xarray, bpages, npages); - - i = 0; - for (pr = kvec_test_ranges; pr->from >= 0; pr++) { - size = pr->to - pr->from; - KUNIT_ASSERT_LE(test, pr->to, bufsize); - - iov_iter_xarray(&iter, READ, xarray, pr->from, size); - copied = copy_to_iter(scratch + i, size, &iter); - - KUNIT_EXPECT_EQ(test, copied, size); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.iov_offset, size); - i += size; - } - - /* Build the expected image in the scratch buffer. */ - patt = 0; - memset(scratch, 0, bufsize); - for (pr = kvec_test_ranges; pr->from >= 0; pr++) - for (i = pr->from; i < pr->to; i++) - scratch[i] = pattern(patt++); - - /* Compare the images */ - for (i = 0; i < bufsize; i++) { - KUNIT_EXPECT_EQ_MSG(test, buffer[i], scratch[i], "at i=%x", i); - if (buffer[i] != scratch[i]) - return; - } - - KUNIT_SUCCEED(); -} - -/* - * Test copying from a ITER_XARRAY-type iterator. - */ -static void __init iov_kunit_copy_from_xarray(struct kunit *test) -{ - const struct kvec_test_range *pr; - struct iov_iter iter; - struct xarray *xarray; - struct page **spages, **bpages; - u8 *scratch, *buffer; - size_t bufsize, npages, size, copied; - int i, j; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - xarray = iov_kunit_create_xarray(test); - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - for (i = 0; i < bufsize; i++) - buffer[i] = pattern(i); - - scratch = iov_kunit_create_buffer(test, &spages, npages); - memset(scratch, 0, bufsize); - - iov_kunit_load_xarray(test, &iter, READ, xarray, bpages, npages); - - i = 0; - for (pr = kvec_test_ranges; pr->from >= 0; pr++) { - size = pr->to - pr->from; - KUNIT_ASSERT_LE(test, pr->to, bufsize); - - iov_iter_xarray(&iter, WRITE, xarray, pr->from, size); - copied = copy_from_iter(scratch + i, size, &iter); - - KUNIT_EXPECT_EQ(test, copied, size); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.iov_offset, size); - i += size; - } - - /* Build the expected image in the main buffer. */ - i = 0; - memset(buffer, 0, bufsize); - for (pr = kvec_test_ranges; pr->from >= 0; pr++) { - for (j = pr->from; j < pr->to; j++) { - buffer[i++] = pattern(j); - if (i >= bufsize) - goto stop; - } - } -stop: - - /* Compare the images */ - for (i = 0; i < bufsize; i++) { - KUNIT_EXPECT_EQ_MSG(test, scratch[i], buffer[i], "at i=%x", i); - if (scratch[i] != buffer[i]) - return; - } - - KUNIT_SUCCEED(); -} - -/* - * Test the extraction of ITER_KVEC-type iterators. - */ -static void __init iov_kunit_extract_pages_kvec(struct kunit *test) -{ - const struct kvec_test_range *pr; - struct iov_iter iter; - struct page **bpages, *pagelist[8], **pages = pagelist; - struct kvec kvec[8]; - u8 *buffer; - ssize_t len; - size_t bufsize, size = 0, npages; - int i, from; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - buffer = iov_kunit_create_buffer(test, &bpages, npages); - - iov_kunit_load_kvec(test, &iter, READ, kvec, ARRAY_SIZE(kvec), - buffer, bufsize, kvec_test_ranges); - size = iter.count; - - pr = kvec_test_ranges; - from = pr->from; - do { - size_t offset0 = LONG_MAX; - - for (i = 0; i < ARRAY_SIZE(pagelist); i++) - pagelist[i] = (void *)(unsigned long)0xaa55aa55aa55aa55ULL; - - len = iov_iter_extract_pages(&iter, &pages, 100 * 1024, - ARRAY_SIZE(pagelist), 0, &offset0); - KUNIT_EXPECT_GE(test, len, 0); - if (len < 0) - break; - KUNIT_EXPECT_GE(test, (ssize_t)offset0, 0); - KUNIT_EXPECT_LT(test, offset0, PAGE_SIZE); - KUNIT_EXPECT_LE(test, len, size); - KUNIT_EXPECT_EQ(test, iter.count, size - len); - size -= len; - - if (len == 0) - break; - - for (i = 0; i < ARRAY_SIZE(pagelist); i++) { - struct page *p; - ssize_t part = min_t(ssize_t, len, PAGE_SIZE - offset0); - int ix; - - KUNIT_ASSERT_GE(test, part, 0); - while (from == pr->to) { - pr++; - from = pr->from; - if (from < 0) - goto stop; - } - ix = from / PAGE_SIZE; - KUNIT_ASSERT_LT(test, ix, npages); - p = bpages[ix]; - KUNIT_EXPECT_PTR_EQ(test, pagelist[i], p); - KUNIT_EXPECT_EQ(test, offset0, from % PAGE_SIZE); - from += part; - len -= part; - KUNIT_ASSERT_GE(test, len, 0); - if (len == 0) - break; - offset0 = 0; - } - - if (test->status == KUNIT_FAILURE) - break; - } while (iov_iter_count(&iter) > 0); - -stop: - KUNIT_EXPECT_EQ(test, size, 0); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_SUCCEED(); -} - -/* - * Test the extraction of ITER_BVEC-type iterators. - */ -static void __init iov_kunit_extract_pages_bvec(struct kunit *test) -{ - const struct bvec_test_range *pr; - struct iov_iter iter; - struct page **bpages, *pagelist[8], **pages = pagelist; - struct bio_vec bvec[8]; - ssize_t len; - size_t bufsize, size = 0, npages; - int i, from; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - iov_kunit_create_buffer(test, &bpages, npages); - iov_kunit_load_bvec(test, &iter, READ, bvec, ARRAY_SIZE(bvec), - bpages, npages, bufsize, bvec_test_ranges); - size = iter.count; - - pr = bvec_test_ranges; - from = pr->from; - do { - size_t offset0 = LONG_MAX; - - for (i = 0; i < ARRAY_SIZE(pagelist); i++) - pagelist[i] = (void *)(unsigned long)0xaa55aa55aa55aa55ULL; - - len = iov_iter_extract_pages(&iter, &pages, 100 * 1024, - ARRAY_SIZE(pagelist), 0, &offset0); - KUNIT_EXPECT_GE(test, len, 0); - if (len < 0) - break; - KUNIT_EXPECT_GE(test, (ssize_t)offset0, 0); - KUNIT_EXPECT_LT(test, offset0, PAGE_SIZE); - KUNIT_EXPECT_LE(test, len, size); - KUNIT_EXPECT_EQ(test, iter.count, size - len); - size -= len; - - if (len == 0) - break; - - for (i = 0; i < ARRAY_SIZE(pagelist); i++) { - struct page *p; - ssize_t part = min_t(ssize_t, len, PAGE_SIZE - offset0); - int ix; - - KUNIT_ASSERT_GE(test, part, 0); - while (from == pr->to) { - pr++; - from = pr->from; - if (from < 0) - goto stop; - } - ix = pr->page + from / PAGE_SIZE; - KUNIT_ASSERT_LT(test, ix, npages); - p = bpages[ix]; - KUNIT_EXPECT_PTR_EQ(test, pagelist[i], p); - KUNIT_EXPECT_EQ(test, offset0, from % PAGE_SIZE); - from += part; - len -= part; - KUNIT_ASSERT_GE(test, len, 0); - if (len == 0) - break; - offset0 = 0; - } - - if (test->status == KUNIT_FAILURE) - break; - } while (iov_iter_count(&iter) > 0); - -stop: - KUNIT_EXPECT_EQ(test, size, 0); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_SUCCEED(); -} - -/* - * Test the extraction of ITER_XARRAY-type iterators. - */ -static void __init iov_kunit_extract_pages_xarray(struct kunit *test) -{ - const struct kvec_test_range *pr; - struct iov_iter iter; - struct xarray *xarray; - struct page **bpages, *pagelist[8], **pages = pagelist; - ssize_t len; - size_t bufsize, size = 0, npages; - int i, from; - - bufsize = 0x100000; - npages = bufsize / PAGE_SIZE; - - xarray = iov_kunit_create_xarray(test); - - iov_kunit_create_buffer(test, &bpages, npages); - iov_kunit_load_xarray(test, &iter, READ, xarray, bpages, npages); - - for (pr = kvec_test_ranges; pr->from >= 0; pr++) { - from = pr->from; - size = pr->to - from; - KUNIT_ASSERT_LE(test, pr->to, bufsize); - - iov_iter_xarray(&iter, WRITE, xarray, from, size); - - do { - size_t offset0 = LONG_MAX; - - for (i = 0; i < ARRAY_SIZE(pagelist); i++) - pagelist[i] = (void *)(unsigned long)0xaa55aa55aa55aa55ULL; - - len = iov_iter_extract_pages(&iter, &pages, 100 * 1024, - ARRAY_SIZE(pagelist), 0, &offset0); - KUNIT_EXPECT_GE(test, len, 0); - if (len < 0) - break; - KUNIT_EXPECT_LE(test, len, size); - KUNIT_EXPECT_EQ(test, iter.count, size - len); - if (len == 0) - break; - size -= len; - KUNIT_EXPECT_GE(test, (ssize_t)offset0, 0); - KUNIT_EXPECT_LT(test, offset0, PAGE_SIZE); - - for (i = 0; i < ARRAY_SIZE(pagelist); i++) { - struct page *p; - ssize_t part = min_t(ssize_t, len, PAGE_SIZE - offset0); - int ix; - - KUNIT_ASSERT_GE(test, part, 0); - ix = from / PAGE_SIZE; - KUNIT_ASSERT_LT(test, ix, npages); - p = bpages[ix]; - KUNIT_EXPECT_PTR_EQ(test, pagelist[i], p); - KUNIT_EXPECT_EQ(test, offset0, from % PAGE_SIZE); - from += part; - len -= part; - KUNIT_ASSERT_GE(test, len, 0); - if (len == 0) - break; - offset0 = 0; - } - - if (test->status == KUNIT_FAILURE) - goto stop; - } while (iov_iter_count(&iter) > 0); - - KUNIT_EXPECT_EQ(test, size, 0); - KUNIT_EXPECT_EQ(test, iter.count, 0); - KUNIT_EXPECT_EQ(test, iter.iov_offset, pr->to - pr->from); - } - -stop: - KUNIT_SUCCEED(); -} - -static struct kunit_case __refdata iov_kunit_cases[] = { - KUNIT_CASE(iov_kunit_copy_to_kvec), - KUNIT_CASE(iov_kunit_copy_from_kvec), - KUNIT_CASE(iov_kunit_copy_to_bvec), - KUNIT_CASE(iov_kunit_copy_from_bvec), - KUNIT_CASE(iov_kunit_copy_to_xarray), - KUNIT_CASE(iov_kunit_copy_from_xarray), - KUNIT_CASE(iov_kunit_extract_pages_kvec), - KUNIT_CASE(iov_kunit_extract_pages_bvec), - KUNIT_CASE(iov_kunit_extract_pages_xarray), - {} -}; - -static struct kunit_suite iov_kunit_suite = { - .name = "iov_iter", - .test_cases = iov_kunit_cases, -}; - -kunit_test_suites(&iov_kunit_suite); |