The test is derived from bitmap_parselist()

Signed-off-by: Yury Norov <yno...@marvell.com>
---
 lib/test_bitmap.c | 102 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 101 insertions(+), 1 deletion(-)

diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index d3a501f2a81a..99ad6c35d038 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -205,7 +205,8 @@ static void __init test_copy(void)
        expect_eq_pbl("0-108,128-1023", bmap2, 1024);
 }
 
-#define PARSE_TIME 0x1
+#define PARSE_TIME     0x1
+#define NO_LEN         0x2
 
 struct test_bitmap_parselist{
        const int errno;
@@ -328,6 +329,93 @@ 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, "",                         &parse_test[0 * step], 32, 0},
+       {0, " ",                        &parse_test[0 * step], 32, 0},
+       {0, "0",                        &parse_test[0 * step], 32, 0},
+       {0, "0\n",                      &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,\n,0,1",          &parse_test[2 * step], 96, 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},
+       {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},
+
+       {-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},
+};
+
+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(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);
@@ -338,6 +426,16 @@ 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 EXP_BYTES      (sizeof(exp) * 8)
 
 static void __init test_bitmap_arr32(void)
@@ -409,6 +507,8 @@ static void __init selftest(void)
        test_fill_set();
        test_copy();
        test_bitmap_arr32();
+       test_bitmap_parse();
+       test_bitmap_parse_user();
        test_bitmap_parselist();
        test_bitmap_parselist_user();
        test_mem_optimisations();
-- 
2.17.1

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