kgdb: remove custom hex_to_bin()implementation

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>

diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index e8fd686..3517fd7 100644 (file)
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -52,17 +52,6 @@ static unsigned long         gdb_regs[(NUMREGBYTES +
  * GDB remote protocol parser:
  */
 
-static int hex(char ch)
-{
-       if ((ch >= 'a') && (ch <= 'f'))
-               return ch - 'a' + 10;
-       if ((ch >= '0') && (ch <= '9'))
-               return ch - '0';
-       if ((ch >= 'A') && (ch <= 'F'))
-               return ch - 'A' + 10;
-       return -1;
-}
-
 #ifdef CONFIG_KGDB_KDB
 static int gdbstub_read_wait(void)
 {
@@ -123,8 +112,8 @@ static void get_packet(char *buffer)
                buffer[count] = 0;
 
                if (ch == '#') {
-                       xmitcsum = hex(gdbstub_read_wait()) << 4;
-                       xmitcsum += hex(gdbstub_read_wait());
+                       xmitcsum = hex_to_bin(gdbstub_read_wait()) << 4;
+                       xmitcsum += hex_to_bin(gdbstub_read_wait());
 
                        if (checksum != xmitcsum)
                                /* failed checksum */
@@ -280,8 +269,8 @@ int kgdb_hex2mem(char *buf, char *mem, int count)
        tmp_hex = tmp_raw - 1;
        while (tmp_hex >= buf) {
                tmp_raw--;
-               *tmp_raw = hex(*tmp_hex--);
-               *tmp_raw |= hex(*tmp_hex--) << 4;
+               *tmp_raw = hex_to_bin(*tmp_hex--);
+               *tmp_raw |= hex_to_bin(*tmp_hex--) << 4;
        }
 
        return probe_kernel_write(mem, tmp_raw, count);
@@ -304,7 +293,7 @@ int kgdb_hex2long(char **ptr, unsigned long *long_val)
                (*ptr)++;
        }
        while (**ptr) {
-               hex_val = hex(**ptr);
+               hex_val = hex_to_bin(**ptr);
                if (hex_val < 0)
                        break;