fat: use pack_hex_byte() instead of custom one

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 530b4ca0151037ae212fe9d2d8ffb827fc970f98..20a1b92e035e443004eba7a0192f93f0e9c45f6a 100644 (file)
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -19,6 +19,7 @@
 #include <linux/buffer_head.h>
 #include <linux/compat.h>
 #include <asm/uaccess.h>
+#include <linux/kernel.h>
 #include "fat.h"
 
 /*
@@ -140,28 +141,22 @@ static int uni16_to_x8(unsigned char *ascii, const wchar_t *uni, int len,
 {
        const wchar_t *ip;
        wchar_t ec;
-       unsigned char *op, nc;
+       unsigned char *op;
        int charlen;
-       int k;
 
        ip = uni;
        op = ascii;
 
        while (*ip && ((len - NLS_MAX_CHARSET_SIZE) > 0)) {
                ec = *ip++;
-               if ( (charlen = nls->uni2char(ec, op, NLS_MAX_CHARSET_SIZE)) > 0) {
+               if ((charlen = nls->uni2char(ec, op, NLS_MAX_CHARSET_SIZE)) > 0) {
                        op += charlen;
                        len -= charlen;
                } else {
                        if (uni_xlate == 1) {
-                               *op = ':';
-                               for (k = 4; k > 0; k--) {
-                                       nc = ec & 0xF;
-                                       op[k] = nc > 9  ? nc + ('a' - 10)
-                                                       : nc + '0';
-                                       ec >>= 4;
-                               }
-                               op += 5;
+                               *op++ = ':';
+                               op = pack_hex_byte(op, ec >> 8);
+                               op = pack_hex_byte(op, ec);
                                len -= 5;
                        } else {
                                *op++ = '?';