kgdb: use common ascii helpers and put_unaligned_be32 helper

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>

2 files changed, 8 insertions, 13 deletions

diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index fa394104339c..2763ae086531 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -119,7 +119,6 @@
         } while (0)
 #define MAX_CONFIG_LEN          40
 
-static const char hexchars[] = "0123456789abcdef";
 static struct kgdb_io kgdbts_io_ops;
 static char get_buf[BUFMAX];
 static int get_buf_cnt;
@@ -619,8 +618,8 @@ static void fill_get_buf(char *buf)
                 count++;
         }
         strcat(get_buf, "#");
-        get_buf[count + 2] = hexchars[checksum >> 4];
-        get_buf[count + 3] = hexchars[checksum & 0xf];
+        get_buf[count + 2] = hex_asc_hi(checksum);
+        get_buf[count + 3] = hex_asc_lo(checksum);
         get_buf[count + 4] = '\0';
         v2printk("get%i: %s\n", ts.idx, get_buf);
 }
diff --git a/kernel/kgdb.c b/kernel/kgdb.c
index 14787de568b3..79e3c90113c2 100644
--- a/kernel/kgdb.c
+++ b/kernel/kgdb.c
@@ -52,6 +52,7 @@
 #include <asm/byteorder.h>
 #include <asm/atomic.h>
 #include <asm/system.h>
+#include <asm/unaligned.h>
 
 static int kgdb_break_asap;
 
@@ -227,8 +228,6 @@ void __weak kgdb_disable_hw_debug(struct pt_regs *regs)
  * GDB remote protocol parser:
  */
 
-static const char       hexchars[] = "0123456789abcdef";
-
 static int hex(char ch)
 {
         if ((ch >= 'a') && (ch <= 'f'))
@@ -316,8 +315,8 @@ static void put_packet(char *buffer)
                 }
 
                 kgdb_io_ops->write_char('#');
-                kgdb_io_ops->write_char(hexchars[checksum >> 4]);
-                kgdb_io_ops->write_char(hexchars[checksum & 0xf]);
+                kgdb_io_ops->write_char(hex_asc_hi(checksum));
+                kgdb_io_ops->write_char(hex_asc_lo(checksum));
                 if (kgdb_io_ops->flush)
                         kgdb_io_ops->flush();
 
@@ -478,8 +477,8 @@ static void error_packet(char *pkt, int error)
 {
         error = -error;
         pkt[0] = 'E';
-        pkt[1] = hexchars[(error / 10)];
-        pkt[2] = hexchars[(error % 10)];
+        pkt[1] = hex_asc[(error / 10)];
+        pkt[2] = hex_asc[(error % 10)];
         pkt[3] = '\0';
 }
 
@@ -510,10 +509,7 @@ static void int_to_threadref(unsigned char *id, int value)
         scan = (unsigned char *)id;
         while (i--)
                 *scan++ = 0;
-        *scan++ = (value >> 24) & 0xff;
-        *scan++ = (value >> 16) & 0xff;
-        *scan++ = (value >> 8) & 0xff;
-        *scan++ = (value & 0xff);
+        put_unaligned_be32(value, scan);
 }
 
 static struct task_struct *getthread(struct pt_regs *regs, int tid)