[PATCH v1 4/7] test_hexdump: replace magic numbers by their meaning

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

The magic numbers of the length are converted to their actual meaning, such as
end of the buffer with and without ASCII part.

We don't touch the rest magic constants that will be removed in the following
commits.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 lib/test_hexdump.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/lib/test_hexdump.c b/lib/test_hexdump.c
index 15a6440..a3e3b01 100644
--- a/lib/test_hexdump.c
+++ b/lib/test_hexdump.c
@@ -130,18 +130,23 @@ static void __init test_hexdump_overflow(size_t buflen, bool ascii)
 {
 	char buf[TEST_HEXDUMP_BUF_SIZE];
 	const char *t = test_data_1_le[0];
+	size_t len = 1;
 	size_t l = buflen;
+	int rs = 16, gs = 1;
+	int ae, he, e, r;
 	bool a;
-	int e, r;
 
 	memset(buf, ' ', sizeof(buf));
 
-	r = hex_dump_to_buffer(data_b, 1, 16, 1, buf, buflen, ascii);
+	r = hex_dump_to_buffer(data_b, len, rs, gs, buf, buflen, ascii);
+
+	ae = rs * 2 /* hex */ + rs / gs /* spaces */ + 1 /* space */ + len /* ascii */;
+	he = (gs * 2 /* hex */ + 1 /* space */) * len / gs - 1 /* no trailing space */;
 
 	if (ascii)
-		e = 50;
+		e = ae;
 	else
-		e = 2;
+		e = he;
 	buf[e + 2] = '\0';
 
 	if (!buflen) {
-- 
2.6.2