arm: configs: enable some touchscreen driver

[firefly-linux-kernel-4.4.55.git] / lib / test-string_helpers.c

diff --git a/lib/test-string_helpers.c b/lib/test-string_helpers.c
index 8e376efd88a40bde12b819861fedff4b679792ab..25b5cbfb7615bd63da19677c877b9e49c3f519e3 100644 (file)
--- a/lib/test-string_helpers.c
+++ b/lib/test-string_helpers.c
@@ -326,6 +326,70 @@ out:
        kfree(out_test);
 }
 
+#define string_get_size_maxbuf 16
+#define test_string_get_size_one(size, blk_size, exp_result10, exp_result2)    \
+       do {                                                                   \
+               BUILD_BUG_ON(sizeof(exp_result10) >= string_get_size_maxbuf);  \
+               BUILD_BUG_ON(sizeof(exp_result2) >= string_get_size_maxbuf);   \
+               __test_string_get_size((size), (blk_size), (exp_result10),     \
+                                      (exp_result2));                         \
+       } while (0)
+
+
+static __init void test_string_get_size_check(const char *units,
+                                             const char *exp,
+                                             char *res,
+                                             const u64 size,
+                                             const u64 blk_size)
+{
+       if (!memcmp(res, exp, strlen(exp) + 1))
+               return;
+
+       res[string_get_size_maxbuf - 1] = '\0';
+
+       pr_warn("Test 'test_string_get_size' failed!\n");
+       pr_warn("string_get_size(size = %llu, blk_size = %llu, units = %s)\n",
+               size, blk_size, units);
+       pr_warn("expected: '%s', got '%s'\n", exp, res);
+}
+
+static __init void __test_string_get_size(const u64 size, const u64 blk_size,
+                                         const char *exp_result10,
+                                         const char *exp_result2)
+{
+       char buf10[string_get_size_maxbuf];
+       char buf2[string_get_size_maxbuf];
+
+       string_get_size(size, blk_size, STRING_UNITS_10, buf10, sizeof(buf10));
+       string_get_size(size, blk_size, STRING_UNITS_2, buf2, sizeof(buf2));
+
+       test_string_get_size_check("STRING_UNITS_10", exp_result10, buf10,
+                                  size, blk_size);
+
+       test_string_get_size_check("STRING_UNITS_2", exp_result2, buf2,
+                                  size, blk_size);
+}
+
+static __init void test_string_get_size(void)
+{
+       /* small values */
+       test_string_get_size_one(0, 512, "0 B", "0 B");
+       test_string_get_size_one(1, 512, "512 B", "512 B");
+       test_string_get_size_one(1100, 1, "1.10 kB", "1.07 KiB");
+
+       /* normal values */
+       test_string_get_size_one(16384, 512, "8.39 MB", "8.00 MiB");
+       test_string_get_size_one(500118192, 512, "256 GB", "238 GiB");
+       test_string_get_size_one(8192, 4096, "33.6 MB", "32.0 MiB");
+
+       /* weird block sizes */
+       test_string_get_size_one(3000, 1900, "5.70 MB", "5.44 MiB");
+
+       /* huge values */
+       test_string_get_size_one(U64_MAX, 4096, "75.6 ZB", "64.0 ZiB");
+       test_string_get_size_one(4096, U64_MAX, "75.6 ZB", "64.0 ZiB");
+}
+
 static int __init test_string_helpers_init(void)
 {
        unsigned int i;
@@ -344,6 +408,9 @@ static int __init test_string_helpers_init(void)
        for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++)
                test_string_escape("escape 1", escape1, i, TEST_STRING_2_DICT_1);
 
+       /* Test string_get_size() */
+       test_string_get_size();
+
        return -EINVAL;
 }
 module_init(test_string_helpers_init);