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lib: add test for bitmap_parse() 

The test is derived from bitmap_parselist() NO_LEN is reserved for use in
following patches.

[yury.norov@gmail.com: fix rebase issue]
  Link: http://lkml.kernel.org/r/20200102182659.6685-1-yury.norov@gmail.com
[andriy.shevchenko@linux.intel.com: fix address space when test user buffer]
  Link: http://lkml.kernel.org/r/20200109103601.45929-2-andriy.shevchenko@linux.intel.com
Link: http://lkml.kernel.org/r/20200102043031.30357-4-yury.norov@gmail.com
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Amritha Nambiar <amritha.nambiar@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: "Tobin C . Harding" <tobin@kernel.org>
Cc: Vineet Gupta <vineet.gupta1@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yury Norov 2020-02-03 17:37:27 -08:00 committed by Linus Torvalds
parent 0bddc1bd05
commit 7eb2e94e96
1 changed files with 95 additions and 2 deletions
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97
lib/test_bitmap.c
View File

@ -295,7 +295,8 @@ static void __init test_replace(void)
expect_eq_bitmap(bmap, exp3_1_0, nbits);
}
#define PARSE_TIME 0x1
#define PARSE_TIME 0x1
#define NO_LEN 0x2
struct test_bitmap_parselist{
const int errno;
@ -349,7 +350,6 @@ static const struct test_bitmap_parselist parselist_tests[] __initconst = {
{-EINVAL, "0-31:a/1", NULL, 8, 0},
{-EINVAL, "0-\n", NULL, 8, 0},
#undef step
};
static void __init __test_bitmap_parselist(int is_user)
@ -401,6 +401,87 @@ static void __init __test_bitmap_parselist(int is_user)
}
}
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 = {
{0, "0", &parse_test[0 * step], 32, 0},
{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},
{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},
{-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
};
static void __init __test_bitmap_parse(int is_user)
{
int i;
int err;
ktime_t time;
DECLARE_BITMAP(bmap, 2048);
char *mode = is_user ? "_user" : "";
for (i = 0; i < ARRAY_SIZE(parse_tests); i++) {
struct test_bitmap_parselist test = parse_tests[i];
if (is_user) {
size_t len = strlen(test.in);
mm_segment_t orig_fs = get_fs();
set_fs(KERNEL_DS);
time = ktime_get();
err = bitmap_parse_user((__force const char __user *)test.in, len,
bmap, test.nbits);
time = ktime_get() - time;
set_fs(orig_fs);
} else {
size_t len = test.flags & NO_LEN ?
UINT_MAX : strlen(test.in);
time = ktime_get();
err = bitmap_parse(test.in, len, bmap, test.nbits);
time = ktime_get() - time;
}
if (err != test.errno) {
pr_err("parse%s: %d: input is %s, errno is %d, expected %d\n",
mode, i, test.in, err, test.errno);
continue;
}
if (!err && test.expected
&& !__bitmap_equal(bmap, test.expected, test.nbits)) {
pr_err("parse%s: %d: input is %s, result is 0x%lx, expected 0x%lx\n",
mode, i, test.in, bmap[0],
*test.expected);
continue;
}
if (test.flags & PARSE_TIME)
pr_err("parse%s: %d: input is '%s' OK, Time: %llu\n",
mode, i, test.in, time);
}
}
static void __init test_bitmap_parselist(void)
{
__test_bitmap_parselist(0);
@ -411,6 +492,16 @@ static void __init test_bitmap_parselist_user(void)
__test_bitmap_parselist(1);
}
static void __init test_bitmap_parse(void)
{
__test_bitmap_parse(0);
}
static void __init test_bitmap_parse_user(void)
{
__test_bitmap_parse(1);
}
#define EXP1_IN_BITS (sizeof(exp1) * 8)
static void __init test_bitmap_arr32(void)
@ -516,6 +607,8 @@ static void __init selftest(void)
test_copy();
test_replace();
test_bitmap_arr32();
test_bitmap_parse();
test_bitmap_parse_user();
test_bitmap_parselist();
test_bitmap_parselist_user();
test_mem_optimisations();