#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/stringify.h>
+#include <linux/kernel.h>
#include "ldm.h"
#include "check.h"
#include "msdos.h"
int h;
/* high part */
- if ((x = src[0] - '0') <= '9'-'0') h = x;
- else if ((x = src[0] - 'a') <= 'f'-'a') h = x+10;
- else if ((x = src[0] - 'A') <= 'F'-'A') h = x+10;
- else return -1;
- h <<= 4;
+ x = h = hex_to_bin(src[0]);
+ if (h < 0)
+ return -1;
/* low part */
- if ((x = src[1] - '0') <= '9'-'0') return h | x;
- if ((x = src[1] - 'a') <= 'f'-'a') return h | (x+10);
- if ((x = src[1] - 'A') <= 'F'-'A') return h | (x+10);
- return -1;
+ h = hex_to_bin(src[1]);
+ if (h < 0)
+ return -1;
+
+ return (x << 4) + h;
}
/**