Define a character to fill the test buffers. Though the character should be printable since it's used when errors are reported. It should neither be from hex digit [a-fA-F0-9] dictionary nor space. It is recommended not to use one which is present in ASCII part of the test data. Later on we might switch to unprintable character to make test case more robust.
Suggested-by: Rasmus Villemoes <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]> --- lib/test_hexdump.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/lib/test_hexdump.c b/lib/test_hexdump.c index ed7c6a7..1ecdb97 100644 --- a/lib/test_hexdump.c +++ b/lib/test_hexdump.c @@ -42,6 +42,8 @@ static const char * const test_data_8_le[] __initconst = { "e9ac0f9cad319ca6", "0cafb1439919d14c", }; +#define FILL_CHAR '#' + static void __init test_hexdump_prepare_test(size_t len, int rowsize, int groupsize, char *test, size_t testlen, bool ascii) @@ -70,7 +72,7 @@ static void __init test_hexdump_prepare_test(size_t len, int rowsize, else result = test_data_1_le; - memset(test, ' ', testlen); + memset(test, FILL_CHAR, testlen); /* hex dump */ p = test; @@ -79,14 +81,19 @@ static void __init test_hexdump_prepare_test(size_t len, int rowsize, size_t amount = strlen(q); strncpy(p, q, amount); - p += amount + 1; + p += amount; + + *p++ = ' '; } if (i) p--; /* ASCII part */ if (ascii) { - p = test + rs * 2 + rs / gs + 1; + do { + *p++ = ' '; + } while (p < test + rs * 2 + rs / gs + 1); + strncpy(p, data_a, l); p += l; } @@ -134,7 +141,7 @@ static void __init test_hexdump_overflow(bool ascii) bool a; int e, r; - memset(buf, ' ', sizeof(buf)); + memset(buf, FILL_CHAR, sizeof(buf)); r = hex_dump_to_buffer(data_b, 1, 16, 1, buf, l, ascii); @@ -145,14 +152,14 @@ static void __init test_hexdump_overflow(bool ascii) buf[e + 2] = '\0'; if (!l) { - a = r == e && buf[0] == ' '; + a = r == e && buf[0] == FILL_CHAR; } else if (l < 3) { a = r == e && buf[0] == '\0'; } else if (l < 4) { a = r == e && !strcmp(buf, t); } else if (ascii) { if (l < 51) - a = r == e && buf[l - 1] == '\0' && buf[l - 2] == ' '; + a = r == e && buf[l - 1] == '\0' && buf[l - 2] == FILL_CHAR; else a = r == e && buf[50] == '\0' && buf[49] == '.'; } else { -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
