On Tue, 2016-04-05 at 16:56 +0300, Andy Shevchenko wrote:

There are new helpers in this patch:

uuid_is_valid		checks if a UUID is valid
uuid_be_to_bin		converts from string to binary (big
endian)
uuid_le_to_bin		converts from string to binary (little
endian)

They will be used in future, i.e. in the following patches in the
series.

This also moves indices arrays to lib/uuid.c to be shared accross
modules.

+static int __uuid_to_bin(const char *uuid, __u8 b[16], const u8
ei[16])
+{
+	static const u8 si[16] =
{0,2,4,6,9,11,14,16,19,21,24,26,28,30,32,34};
+	unsigned int i;
+
+	if (uuid_is_valid(uuid))

Oops, sorry, typo is here, should be negative check.

if (!uuid_is_valid(uuid))

+		return -EINVAL;
+
+	for (i = 0; i < 16; i++) {
+		int hi = hex_to_bin(uuid[si[i]] + 0);
+		int lo = hex_to_bin(uuid[si[i]] + 1);
+
+		b[ei[i]] = (hi << 4) | lo;
+	}
+
+	return 0;
+}

-- 
Andy Shevchenko [off-list ref]
Intel Finland Oy