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lib/test_bitmap.c
17.5 KB
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// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Test cases for bitmap API. |
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*/ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/bitmap.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/printk.h> #include <linux/slab.h> #include <linux/string.h> |
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#include <linux/uaccess.h> |
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#include "../tools/testing/selftests/kselftest_module.h" |
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static unsigned total_tests __initdata; static unsigned failed_tests __initdata; static char pbl_buffer[PAGE_SIZE] __initdata; |
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static const unsigned long exp1[] __initconst = { BITMAP_FROM_U64(1), BITMAP_FROM_U64(2), BITMAP_FROM_U64(0x0000ffff), BITMAP_FROM_U64(0xffff0000), BITMAP_FROM_U64(0x55555555), BITMAP_FROM_U64(0xaaaaaaaa), BITMAP_FROM_U64(0x11111111), BITMAP_FROM_U64(0x22222222), BITMAP_FROM_U64(0xffffffff), BITMAP_FROM_U64(0xfffffffe), BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0xffffffff77777777ULL), BITMAP_FROM_U64(0), }; static const unsigned long exp2[] __initconst = { BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0xffffffff77777777ULL), }; |
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/* Fibonacci sequence */ static const unsigned long exp2_to_exp3_mask[] __initconst = { BITMAP_FROM_U64(0x008000020020212eULL), }; /* exp3_0_1 = (exp2[0] & ~exp2_to_exp3_mask) | (exp2[1] & exp2_to_exp3_mask) */ static const unsigned long exp3_0_1[] __initconst = { BITMAP_FROM_U64(0x33b3333311313137ULL), }; /* exp3_1_0 = (exp2[1] & ~exp2_to_exp3_mask) | (exp2[0] & exp2_to_exp3_mask) */ static const unsigned long exp3_1_0[] __initconst = { BITMAP_FROM_U64(0xff7fffff77575751ULL), }; |
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static bool __init __check_eq_uint(const char *srcfile, unsigned int line, const unsigned int exp_uint, unsigned int x) { if (exp_uint != x) { |
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pr_err("[%s:%u] expected %u, got %u ", |
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srcfile, line, exp_uint, x); return false; } return true; } static bool __init __check_eq_bitmap(const char *srcfile, unsigned int line, |
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const unsigned long *exp_bmap, const unsigned long *bmap, unsigned int nbits) |
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{ |
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if (!bitmap_equal(exp_bmap, bmap, nbits)) { pr_warn("[%s:%u] bitmaps contents differ: expected \"%*pbl\", got \"%*pbl\" ", srcfile, line, |
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nbits, exp_bmap, nbits, bmap); |
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return false; } return true; } static bool __init __check_eq_pbl(const char *srcfile, unsigned int line, const char *expected_pbl, const unsigned long *bitmap, unsigned int nbits) { snprintf(pbl_buffer, sizeof(pbl_buffer), "%*pbl", nbits, bitmap); if (strcmp(expected_pbl, pbl_buffer)) { pr_warn("[%s:%u] expected \"%s\", got \"%s\" ", srcfile, line, expected_pbl, pbl_buffer); return false; } return true; } static bool __init __check_eq_u32_array(const char *srcfile, unsigned int line, const u32 *exp_arr, unsigned int exp_len, |
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const u32 *arr, unsigned int len) __used; static bool __init __check_eq_u32_array(const char *srcfile, unsigned int line, const u32 *exp_arr, unsigned int exp_len, |
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const u32 *arr, unsigned int len) { if (exp_len != len) { pr_warn("[%s:%u] array length differ: expected %u, got %u ", srcfile, line, exp_len, len); return false; } if (memcmp(exp_arr, arr, len*sizeof(*arr))) { pr_warn("[%s:%u] array contents differ ", srcfile, line); print_hex_dump(KERN_WARNING, " exp: ", DUMP_PREFIX_OFFSET, 32, 4, exp_arr, exp_len*sizeof(*exp_arr), false); print_hex_dump(KERN_WARNING, " got: ", DUMP_PREFIX_OFFSET, 32, 4, arr, len*sizeof(*arr), false); return false; } return true; } |
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static bool __init __check_eq_clump8(const char *srcfile, unsigned int line, const unsigned int offset, const unsigned int size, const unsigned char *const clump_exp, const unsigned long *const clump) { unsigned long exp; if (offset >= size) { pr_warn("[%s:%u] bit offset for clump out-of-bounds: expected less than %u, got %u ", srcfile, line, size, offset); return false; } exp = clump_exp[offset / 8]; if (!exp) { pr_warn("[%s:%u] bit offset for zero clump: expected nonzero clump, got bit offset %u with clump value 0", srcfile, line, offset); return false; } if (*clump != exp) { pr_warn("[%s:%u] expected clump value of 0x%lX, got clump value of 0x%lX", srcfile, line, exp, *clump); return false; } return true; } |
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#define __expect_eq(suffix, ...) \ ({ \ int result = 0; \ total_tests++; \ if (!__check_eq_ ## suffix(__FILE__, __LINE__, \ ##__VA_ARGS__)) { \ failed_tests++; \ result = 1; \ } \ result; \ }) #define expect_eq_uint(...) __expect_eq(uint, ##__VA_ARGS__) #define expect_eq_bitmap(...) __expect_eq(bitmap, ##__VA_ARGS__) #define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__) #define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__) |
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#define expect_eq_clump8(...) __expect_eq(clump8, ##__VA_ARGS__) |
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static void __init test_zero_clear(void) { DECLARE_BITMAP(bmap, 1024); /* Known way to set all bits */ memset(bmap, 0xff, 128); expect_eq_pbl("0-22", bmap, 23); expect_eq_pbl("0-1023", bmap, 1024); /* single-word bitmaps */ bitmap_clear(bmap, 0, 9); expect_eq_pbl("9-1023", bmap, 1024); bitmap_zero(bmap, 35); expect_eq_pbl("64-1023", bmap, 1024); /* cross boundaries operations */ bitmap_clear(bmap, 79, 19); expect_eq_pbl("64-78,98-1023", bmap, 1024); bitmap_zero(bmap, 115); expect_eq_pbl("128-1023", bmap, 1024); /* Zeroing entire area */ bitmap_zero(bmap, 1024); expect_eq_pbl("", bmap, 1024); } |
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static void __init test_fill_set(void) { DECLARE_BITMAP(bmap, 1024); /* Known way to clear all bits */ memset(bmap, 0x00, 128); expect_eq_pbl("", bmap, 23); expect_eq_pbl("", bmap, 1024); /* single-word bitmaps */ bitmap_set(bmap, 0, 9); expect_eq_pbl("0-8", bmap, 1024); bitmap_fill(bmap, 35); expect_eq_pbl("0-63", bmap, 1024); /* cross boundaries operations */ bitmap_set(bmap, 79, 19); expect_eq_pbl("0-63,79-97", bmap, 1024); bitmap_fill(bmap, 115); expect_eq_pbl("0-127", bmap, 1024); /* Zeroing entire area */ bitmap_fill(bmap, 1024); expect_eq_pbl("0-1023", bmap, 1024); } |
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static void __init test_copy(void) |
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{ DECLARE_BITMAP(bmap1, 1024); DECLARE_BITMAP(bmap2, 1024); bitmap_zero(bmap1, 1024); bitmap_zero(bmap2, 1024); /* single-word bitmaps */ |
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bitmap_set(bmap1, 0, 19); |
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bitmap_copy(bmap2, bmap1, 23); expect_eq_pbl("0-18", bmap2, 1024); |
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bitmap_set(bmap2, 0, 23); |
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bitmap_copy(bmap2, bmap1, 23); expect_eq_pbl("0-18", bmap2, 1024); |
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/* multi-word bitmaps */ |
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bitmap_set(bmap1, 0, 109); |
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bitmap_copy(bmap2, bmap1, 1024); expect_eq_pbl("0-108", bmap2, 1024); bitmap_fill(bmap2, 1024); |
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bitmap_copy(bmap2, bmap1, 1024); expect_eq_pbl("0-108", bmap2, 1024); /* the following tests assume a 32- or 64-bit arch (even 128b * if we care) */ bitmap_fill(bmap2, 1024); bitmap_copy(bmap2, bmap1, 109); /* ... but 0-padded til word length */ expect_eq_pbl("0-108,128-1023", bmap2, 1024); bitmap_fill(bmap2, 1024); bitmap_copy(bmap2, bmap1, 97); /* ... but aligned on word length */ expect_eq_pbl("0-108,128-1023", bmap2, 1024); |
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} |
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#define EXP2_IN_BITS (sizeof(exp2) * 8) static void __init test_replace(void) { unsigned int nbits = 64; |
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unsigned int nlongs = DIV_ROUND_UP(nbits, BITS_PER_LONG); |
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DECLARE_BITMAP(bmap, 1024); |
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BUILD_BUG_ON(EXP2_IN_BITS < nbits * 2); |
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bitmap_zero(bmap, 1024); |
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bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); |
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expect_eq_bitmap(bmap, exp3_0_1, nbits); bitmap_zero(bmap, 1024); |
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bitmap_replace(bmap, &exp2[1 * nlongs], &exp2[0 * nlongs], exp2_to_exp3_mask, nbits); |
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expect_eq_bitmap(bmap, exp3_1_0, nbits); bitmap_fill(bmap, 1024); |
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bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); |
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expect_eq_bitmap(bmap, exp3_0_1, nbits); bitmap_fill(bmap, 1024); |
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bitmap_replace(bmap, &exp2[1 * nlongs], &exp2[0 * nlongs], exp2_to_exp3_mask, nbits); |
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expect_eq_bitmap(bmap, exp3_1_0, nbits); } |
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#define PARSE_TIME 0x1 #define NO_LEN 0x2 |
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struct test_bitmap_parselist{ const int errno; const char *in; const unsigned long *expected; const int nbits; const int flags; }; |
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static const struct test_bitmap_parselist parselist_tests[] __initconst = { |
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#define step (sizeof(u64) / sizeof(unsigned long)) |
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{0, "0", &exp1[0], 8, 0}, {0, "1", &exp1[1 * step], 8, 0}, {0, "0-15", &exp1[2 * step], 32, 0}, {0, "16-31", &exp1[3 * step], 32, 0}, {0, "0-31:1/2", &exp1[4 * step], 32, 0}, {0, "1-31:1/2", &exp1[5 * step], 32, 0}, {0, "0-31:1/4", &exp1[6 * step], 32, 0}, {0, "1-31:1/4", &exp1[7 * step], 32, 0}, {0, "0-31:4/4", &exp1[8 * step], 32, 0}, {0, "1-31:4/4", &exp1[9 * step], 32, 0}, {0, "0-31:1/4,32-63:2/4", &exp1[10 * step], 64, 0}, {0, "0-31:3/4,32-63:4/4", &exp1[11 * step], 64, 0}, {0, " ,, 0-31:3/4 ,, 32-63:4/4 ,, ", &exp1[11 * step], 64, 0}, |
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{0, "0-31:1/4,32-63:2/4,64-95:3/4,96-127:4/4", exp2, 128, 0}, {0, "0-2047:128/256", NULL, 2048, PARSE_TIME}, |
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{0, "", &exp1[12 * step], 8, 0}, {0, " ", &exp1[12 * step], 8, 0}, {0, ",, ,, , , ,", &exp1[12 * step], 8, 0}, {0, " , ,, , , ", &exp1[12 * step], 8, 0}, {0, " , ,, , , ", &exp1[12 * step], 8, 0}, |
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{-EINVAL, "-1", NULL, 8, 0}, {-EINVAL, "-0", NULL, 8, 0}, {-EINVAL, "10-1", NULL, 8, 0}, |
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{-EINVAL, "0-31:", NULL, 8, 0}, {-EINVAL, "0-31:0", NULL, 8, 0}, |
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{-EINVAL, "0-31:0/", NULL, 8, 0}, |
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{-EINVAL, "0-31:0/0", NULL, 8, 0}, {-EINVAL, "0-31:1/0", NULL, 8, 0}, |
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{-EINVAL, "0-31:10/1", NULL, 8, 0}, |
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{-EOVERFLOW, "0-98765432123456789:10/1", NULL, 8, 0}, {-EINVAL, "a-31", NULL, 8, 0}, {-EINVAL, "0-a1", NULL, 8, 0}, {-EINVAL, "a-31:10/1", NULL, 8, 0}, {-EINVAL, "0-31:a/1", NULL, 8, 0}, {-EINVAL, "0- ", NULL, 8, 0}, |
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}; |
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static void __init test_bitmap_parselist(void) |
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{ int i; int err; |
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ktime_t time; |
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DECLARE_BITMAP(bmap, 2048); for (i = 0; i < ARRAY_SIZE(parselist_tests); i++) { #define ptest parselist_tests[i] |
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time = ktime_get(); err = bitmap_parselist(ptest.in, bmap, ptest.nbits); time = ktime_get() - time; |
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if (err != ptest.errno) { |
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pr_err("parselist: %d: input is %s, errno is %d, expected %d ", i, ptest.in, err, ptest.errno); |
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continue; } if (!err && ptest.expected && !__bitmap_equal(bmap, ptest.expected, ptest.nbits)) { |
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pr_err("parselist: %d: input is %s, result is 0x%lx, expected 0x%lx ", i, ptest.in, bmap[0], |
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*ptest.expected); |
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continue; } if (ptest.flags & PARSE_TIME) |
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pr_err("parselist: %d: input is '%s' OK, Time: %llu ", i, ptest.in, time); |
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#undef ptest |
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} } |
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static const unsigned long parse_test[] __initconst = { BITMAP_FROM_U64(0), BITMAP_FROM_U64(1), BITMAP_FROM_U64(0xdeadbeef), BITMAP_FROM_U64(0x100000000ULL), }; static const unsigned long parse_test2[] __initconst = { BITMAP_FROM_U64(0x100000000ULL), BITMAP_FROM_U64(0xdeadbeef), BITMAP_FROM_U64(0x100000000ULL), BITMAP_FROM_U64(0xbaadf00ddeadbeef), BITMAP_FROM_U64(0x100000000ULL), BITMAP_FROM_U64(0x0badf00ddeadbeef), }; static const struct test_bitmap_parselist parse_tests[] __initconst = { |
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{0, "", &parse_test[0 * step], 32, 0}, {0, " ", &parse_test[0 * step], 32, 0}, |
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{0, "0", &parse_test[0 * step], 32, 0}, |
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{0, "0 ", &parse_test[0 * step], 32, 0}, |
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{0, "1", &parse_test[1 * step], 32, 0}, {0, "deadbeef", &parse_test[2 * step], 32, 0}, {0, "1,0", &parse_test[3 * step], 33, 0}, |
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{0, "deadbeef, ,0,1", &parse_test[2 * step], 96, 0}, |
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{0, "deadbeef,1,0", &parse_test2[0 * 2 * step], 96, 0}, {0, "baadf00d,deadbeef,1,0", &parse_test2[1 * 2 * step], 128, 0}, {0, "badf00d,deadbeef,1,0", &parse_test2[2 * 2 * step], 124, 0}, |
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{0, "badf00d,deadbeef,1,0", &parse_test2[2 * 2 * step], 124, NO_LEN}, {0, " badf00d,deadbeef,1,0 ", &parse_test2[2 * 2 * step], 124, 0}, {0, " , badf00d,deadbeef,1,0 , ", &parse_test2[2 * 2 * step], 124, 0}, {0, " , badf00d, ,, ,,deadbeef,1,0 , ", &parse_test2[2 * 2 * step], 124, 0}, |
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{-EINVAL, "goodfood,deadbeef,1,0", NULL, 128, 0}, {-EOVERFLOW, "3,0", NULL, 33, 0}, {-EOVERFLOW, "123badf00d,deadbeef,1,0", NULL, 128, 0}, {-EOVERFLOW, "badf00d,deadbeef,1,0", NULL, 90, 0}, {-EOVERFLOW, "fbadf00d,deadbeef,1,0", NULL, 95, 0}, {-EOVERFLOW, "badf00d,deadbeef,1,0", NULL, 100, 0}, #undef step }; |
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static void __init test_bitmap_parse(void) |
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{ int i; int err; ktime_t time; DECLARE_BITMAP(bmap, 2048); |
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for (i = 0; i < ARRAY_SIZE(parse_tests); i++) { struct test_bitmap_parselist test = parse_tests[i]; |
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size_t len = test.flags & NO_LEN ? UINT_MAX : strlen(test.in); |
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time = ktime_get(); err = bitmap_parse(test.in, len, bmap, test.nbits); time = ktime_get() - time; |
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if (err != test.errno) { |
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pr_err("parse: %d: input is %s, errno is %d, expected %d ", i, test.in, err, test.errno); |
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continue; } if (!err && test.expected && !__bitmap_equal(bmap, test.expected, test.nbits)) { |
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pr_err("parse: %d: input is %s, result is 0x%lx, expected 0x%lx ", i, test.in, bmap[0], |
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*test.expected); continue; } if (test.flags & PARSE_TIME) |
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pr_err("parse: %d: input is '%s' OK, Time: %llu ", i, test.in, time); |
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} } |
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#define EXP1_IN_BITS (sizeof(exp1) * 8) |
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static void __init test_bitmap_arr32(void) |
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{ |
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unsigned int nbits, next_bit; |
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u32 arr[EXP1_IN_BITS / 32]; DECLARE_BITMAP(bmap2, EXP1_IN_BITS); |
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memset(arr, 0xa5, sizeof(arr)); |
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for (nbits = 0; nbits < EXP1_IN_BITS; ++nbits) { |
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bitmap_to_arr32(arr, exp1, nbits); |
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bitmap_from_arr32(bmap2, arr, nbits); |
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expect_eq_bitmap(bmap2, exp1, nbits); |
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next_bit = find_next_bit(bmap2, round_up(nbits, BITS_PER_LONG), nbits); if (next_bit < round_up(nbits, BITS_PER_LONG)) pr_err("bitmap_copy_arr32(nbits == %d:" " tail is not safely cleared: %d ", nbits, next_bit); |
a4881d1cb lib/test_bitmap: ... |
485 |
if (nbits < EXP1_IN_BITS - 32) |
3aa56885e bitmap: replace b... |
486 487 |
expect_eq_uint(arr[DIV_ROUND_UP(nbits, 32)], 0xa5a5a5a5); |
5fd003f56 test_bitmap: unit... |
488 489 |
} } |
3cc78125a lib/test_bitmap.c... |
490 491 492 493 494 495 496 |
static void noinline __init test_mem_optimisations(void) { DECLARE_BITMAP(bmap1, 1024); DECLARE_BITMAP(bmap2, 1024); unsigned int start, nbits; for (start = 0; start < 1024; start += 8) { |
3cc78125a lib/test_bitmap.c... |
497 |
for (nbits = 0; nbits < 1024 - start; nbits += 8) { |
1e3054b98 lib/test_bitmap.c... |
498 499 |
memset(bmap1, 0x5a, sizeof(bmap1)); memset(bmap2, 0x5a, sizeof(bmap2)); |
3cc78125a lib/test_bitmap.c... |
500 501 |
bitmap_set(bmap1, start, nbits); __bitmap_set(bmap2, start, nbits); |
1e3054b98 lib/test_bitmap.c... |
502 |
if (!bitmap_equal(bmap1, bmap2, 1024)) { |
3cc78125a lib/test_bitmap.c... |
503 504 |
printk("set not equal %d %d ", start, nbits); |
1e3054b98 lib/test_bitmap.c... |
505 506 507 |
failed_tests++; } if (!__bitmap_equal(bmap1, bmap2, 1024)) { |
3cc78125a lib/test_bitmap.c... |
508 509 |
printk("set not __equal %d %d ", start, nbits); |
1e3054b98 lib/test_bitmap.c... |
510 511 |
failed_tests++; } |
3cc78125a lib/test_bitmap.c... |
512 513 514 |
bitmap_clear(bmap1, start, nbits); __bitmap_clear(bmap2, start, nbits); |
1e3054b98 lib/test_bitmap.c... |
515 |
if (!bitmap_equal(bmap1, bmap2, 1024)) { |
3cc78125a lib/test_bitmap.c... |
516 517 |
printk("clear not equal %d %d ", start, nbits); |
1e3054b98 lib/test_bitmap.c... |
518 519 520 |
failed_tests++; } if (!__bitmap_equal(bmap1, bmap2, 1024)) { |
3cc78125a lib/test_bitmap.c... |
521 522 523 |
printk("clear not __equal %d %d ", start, nbits); |
1e3054b98 lib/test_bitmap.c... |
524 525 |
failed_tests++; } |
3cc78125a lib/test_bitmap.c... |
526 527 528 |
} } } |
e4aa168de lib/test_bitmap.c... |
529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 |
static const unsigned char clump_exp[] __initconst = { 0x01, /* 1 bit set */ 0x02, /* non-edge 1 bit set */ 0x00, /* zero bits set */ 0x38, /* 3 bits set across 4-bit boundary */ 0x38, /* Repeated clump */ 0x0F, /* 4 bits set */ 0xFF, /* all bits set */ 0x05, /* non-adjacent 2 bits set */ }; static void __init test_for_each_set_clump8(void) { #define CLUMP_EXP_NUMBITS 64 DECLARE_BITMAP(bits, CLUMP_EXP_NUMBITS); unsigned int start; unsigned long clump; /* set bitmap to test case */ bitmap_zero(bits, CLUMP_EXP_NUMBITS); bitmap_set(bits, 0, 1); /* 0x01 */ bitmap_set(bits, 9, 1); /* 0x02 */ bitmap_set(bits, 27, 3); /* 0x28 */ bitmap_set(bits, 35, 3); /* 0x28 */ bitmap_set(bits, 40, 4); /* 0x0F */ bitmap_set(bits, 48, 8); /* 0xFF */ bitmap_set(bits, 56, 1); /* 0x05 - part 1 */ bitmap_set(bits, 58, 1); /* 0x05 - part 2 */ for_each_set_clump8(start, clump, bits, CLUMP_EXP_NUMBITS) expect_eq_clump8(start, CLUMP_EXP_NUMBITS, clump_exp, &clump); } |
bcb32a1d8 lib/test_bitmap.c... |
561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 |
struct test_bitmap_cut { unsigned int first; unsigned int cut; unsigned int nbits; unsigned long in[4]; unsigned long expected[4]; }; static struct test_bitmap_cut test_cut[] = { { 0, 0, 8, { 0x0000000aUL, }, { 0x0000000aUL, }, }, { 0, 0, 32, { 0xdadadeadUL, }, { 0xdadadeadUL, }, }, { 0, 3, 8, { 0x000000aaUL, }, { 0x00000015UL, }, }, { 3, 3, 8, { 0x000000aaUL, }, { 0x00000012UL, }, }, { 0, 1, 32, { 0xa5a5a5a5UL, }, { 0x52d2d2d2UL, }, }, { 0, 8, 32, { 0xdeadc0deUL, }, { 0x00deadc0UL, }, }, { 1, 1, 32, { 0x5a5a5a5aUL, }, { 0x2d2d2d2cUL, }, }, { 0, 15, 32, { 0xa5a5a5a5UL, }, { 0x00014b4bUL, }, }, { 0, 16, 32, { 0xa5a5a5a5UL, }, { 0x0000a5a5UL, }, }, { 15, 15, 32, { 0xa5a5a5a5UL, }, { 0x000125a5UL, }, }, { 15, 16, 32, { 0xa5a5a5a5UL, }, { 0x0000a5a5UL, }, }, { 16, 15, 32, { 0xa5a5a5a5UL, }, { 0x0001a5a5UL, }, }, { BITS_PER_LONG, BITS_PER_LONG, BITS_PER_LONG, { 0xa5a5a5a5UL, 0xa5a5a5a5UL, }, { 0xa5a5a5a5UL, 0xa5a5a5a5UL, }, }, { 1, BITS_PER_LONG - 1, BITS_PER_LONG, { 0xa5a5a5a5UL, 0xa5a5a5a5UL, }, { 0x00000001UL, 0x00000001UL, }, }, { 0, BITS_PER_LONG * 2, BITS_PER_LONG * 2 + 1, { 0xa5a5a5a5UL, 0x00000001UL, 0x00000001UL, 0x00000001UL }, { 0x00000001UL, }, }, { 16, BITS_PER_LONG * 2 + 1, BITS_PER_LONG * 2 + 1 + 16, { 0x0000ffffUL, 0x5a5a5a5aUL, 0x5a5a5a5aUL, 0x5a5a5a5aUL }, { 0x2d2dffffUL, }, }, }; static void __init test_bitmap_cut(void) { unsigned long b[5], *in = &b[1], *out = &b[0]; /* Partial overlap */ int i; for (i = 0; i < ARRAY_SIZE(test_cut); i++) { struct test_bitmap_cut *t = &test_cut[i]; memcpy(in, t->in, sizeof(t->in)); bitmap_cut(out, in, t->first, t->cut, t->nbits); expect_eq_bitmap(t->expected, out, t->nbits); } } |
6b1a4d5b1 lib: Use new ksel... |
617 |
static void __init selftest(void) |
5fd003f56 test_bitmap: unit... |
618 |
{ |
ee3527bd5 lib/test_bitmap.c... |
619 |
test_zero_clear(); |
978f369c5 lib/test_bitmap.c... |
620 |
test_fill_set(); |
fe81814c3 lib/test_bitmap.c... |
621 |
test_copy(); |
30544ed5d lib/bitmap: intro... |
622 |
test_replace(); |
3aa56885e bitmap: replace b... |
623 |
test_bitmap_arr32(); |
7eb2e94e9 lib: add test for... |
624 |
test_bitmap_parse(); |
6df0d464d lib/test_bitmap.c... |
625 |
test_bitmap_parselist(); |
3cc78125a lib/test_bitmap.c... |
626 |
test_mem_optimisations(); |
e4aa168de lib/test_bitmap.c... |
627 |
test_for_each_set_clump8(); |
bcb32a1d8 lib/test_bitmap.c... |
628 |
test_bitmap_cut(); |
5fd003f56 test_bitmap: unit... |
629 |
} |
6b1a4d5b1 lib: Use new ksel... |
630 |
KSTM_MODULE_LOADERS(test_bitmap); |
5fd003f56 test_bitmap: unit... |
631 632 |
MODULE_AUTHOR("david decotigny <david.decotigny@googlers.com>"); MODULE_LICENSE("GPL"); |