staging: rt2860: use new hex_to_bin() method

Instead of using own implementation involve hex_to_bin() function.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 2 insertions, 15 deletions

diff --git a/drivers/staging/rt2860/common/rtmp_init.c b/drivers/staging/rt2860/common/rtmp_init.c
index 21a95ffdfb86..a09038542f26 100644
--- a/drivers/staging/rt2860/common/rtmp_init.c
+++ b/drivers/staging/rt2860/common/rtmp_init.c
@@ -2810,17 +2810,6 @@ void UserCfgInit(struct rt_rtmp_adapter *pAd)
 }
 
 /* IRQL = PASSIVE_LEVEL */
-u8 BtoH(char ch)
-{
-        if (ch >= '0' && ch <= '9')
-                return (ch - '0');      /* Handle numerals */
-        if (ch >= 'A' && ch <= 'F')
-                return (ch - 'A' + 0xA);        /* Handle capitol hex digits */
-        if (ch >= 'a' && ch <= 'f')
-                return (ch - 'a' + 0xA);        /* Handle small hex digits */
-        return (255);
-}
-
 /* */
 /*  FUNCTION: AtoH(char *, u8 *, int) */
 /* */
@@ -2847,8 +2836,8 @@ void AtoH(char *src, u8 *dest, int destlen)
         destTemp = (u8 *)dest;
 
         while (destlen--) {
-                *destTemp = BtoH(*srcptr++) << 4;       /* Put 1st ascii byte in upper nibble. */
-                *destTemp += BtoH(*srcptr++);   /* Add 2nd ascii byte to above. */
+                *destTemp = hex_to_bin(*srcptr++) << 4; /* Put 1st ascii byte in upper nibble. */
+                *destTemp += hex_to_bin(*srcptr++);     /* Add 2nd ascii byte to above. */
                 destTemp++;
         }
 }
diff --git a/drivers/staging/rt2860/rtmp.h b/drivers/staging/rt2860/rtmp.h
index ab525ee15042..82b6e783b33f 100644
--- a/drivers/staging/rt2860/rtmp.h
+++ b/drivers/staging/rt2860/rtmp.h
@@ -2356,8 +2356,6 @@ void RTMPMoveMemory(void *pDest, void *pSrc, unsigned long Length);
 
 void AtoH(char *src, u8 *dest, int destlen);
 
-u8 BtoH(char ch);
-
 void RTMPPatchMacBbpBug(struct rt_rtmp_adapter *pAd);
 
 void RTMPInitTimer(struct rt_rtmp_adapter *pAd,