drivers: isdn: use new hex_to_bin() method
Remove own implementation of hex_to_bin().
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 964a55f..ac4cfee 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -170,17 +170,6 @@
}
/*
- * convert hex to binary
- */
-static inline u8 hex2bin(char c)
-{
- int result = c & 0x0f;
- if (c & 0x40)
- result += 9;
- return result;
-}
-
-/*
* convert an IE from Gigaset hex string to ETSI binary representation
* including length byte
* return value: result length, -1 on error
@@ -191,7 +180,7 @@
while (*in) {
if (!isxdigit(in[0]) || !isxdigit(in[1]) || l >= maxlen)
return -1;
- out[++l] = (hex2bin(in[0]) << 4) + hex2bin(in[1]);
+ out[++l] = (hex_to_bin(in[0]) << 4) + hex_to_bin(in[1]);
in += 2;
}
out[0] = l;