1 files changed, 7 insertions, 46 deletions

diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c
index edd1ec214e6d..2fdc700dfd6e 100644
--- a/arch/sh/kernel/kgdb_stub.c
+++ b/arch/sh/kernel/kgdb_stub.c
@@ -150,13 +150,6 @@ struct kgdb_regs trap_registers;
 char kgdb_in_gdb_mode;
 char in_nmi;                    /* Set during NMI to prevent reentry */
 int kgdb_nofault;               /* Boolean to ignore bus errs (i.e. in GDB) */
-int kgdb_enabled = 1;           /* Default to enabled, cmdline can disable */
-
-/* Exposed for user access */
-struct task_struct *kgdb_current;
-unsigned int kgdb_g_imask;
-int kgdb_trapa_val;
-int kgdb_excode;
 
 /* Default values for SCI (can override via kernel args in setup.c) */
 #ifndef CONFIG_KGDB_DEFPORT
@@ -616,7 +609,7 @@ static short *get_step_address(void)
         else
                 addr = trap_registers.pc + 2;
 
-        kgdb_flush_icache_range(addr, addr + 2);
+        flush_icache_range(addr, addr + 2);
         return (short *) addr;
 }
 
@@ -639,8 +632,7 @@ static void do_single_step(void)
         *addr = STEP_OPCODE;
 
         /* Flush and return */
-        kgdb_flush_icache_range((long) addr, (long) addr + 2);
-        return;
+        flush_icache_range((long) addr, (long) addr + 2);
 }
 
 /* Undo a single step */
@@ -650,7 +642,7 @@ static void undo_single_step(void)
         /* Use stepped_address in case we stopped elsewhere */
         if (stepped_opcode != 0) {
                 *(short*)stepped_address = stepped_opcode;
-                kgdb_flush_icache_range(stepped_address, stepped_address + 2);
+                flush_icache_range(stepped_address, stepped_address + 2);
         }
         stepped_opcode = 0;
 }
@@ -736,7 +728,7 @@ static void write_mem_msg(int binary)
                                         ebin_to_mem(ptr, (char*)addr, length);
                                 else
                                         hex_to_mem(ptr, (char*)addr, length);
-                                kgdb_flush_icache_range(addr, addr + length);
+                                flush_icache_range(addr, addr + length);
                                 ptr = 0;
                                 send_ok_msg();
                         }
@@ -815,14 +807,10 @@ static void set_regs_msg(void)
 /*
  * Bring up the ports..
  */
-static int kgdb_serial_setup(void)
+static int __init kgdb_serial_setup(void)
 {
-        extern int kgdb_console_setup(struct console *co, char *options);
         struct console dummy;
-
-        kgdb_console_setup(&dummy, 0);
-
-        return 0;
+        return kgdb_console_setup(&dummy, 0);
 }
 #else
 #define kgdb_serial_setup()     0
@@ -833,22 +821,6 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value)
 {
         int sigval;
 
-        if (excep_code == NMI_VEC) {
-#ifndef CONFIG_KGDB_NMI
-                printk(KERN_NOTICE "KGDB: Ignoring unexpected NMI?\n");
-                return;
-#else /* CONFIG_KGDB_NMI */
-                if (!kgdb_enabled) {
-                        kgdb_enabled = 1;
-                        kgdb_init();
-                }
-#endif /* CONFIG_KGDB_NMI */
-        }
-
-        /* Ignore if we're disabled */
-        if (!kgdb_enabled)
-                return;
-
         /* Enter GDB mode (e.g. after detach) */
         if (!kgdb_in_gdb_mode) {
                 /* Do serial setup, notify user, issue preemptive ack */
@@ -959,18 +931,10 @@ static void handle_exception(struct pt_regs *regs)
 
         /* Get excode for command loop call, user access */
         asm("stc r2_bank, %0":"=r"(excep_code));
-        kgdb_excode = excep_code;
-
-        /* Other interesting environment items for reference */
-        asm("stc r6_bank, %0":"=r"(kgdb_g_imask));
-        kgdb_current = current;
-        kgdb_trapa_val = trapa_value;
 
         /* Act on the exception */
         kgdb_command_loop(excep_code, trapa_value);
 
-        kgdb_current = NULL;
-
         /* Copy back the (maybe modified) registers */
         for (count = 0; count < 16; count++)
                 regs->regs[count] = trap_registers.regs[count];
@@ -994,11 +958,8 @@ asmlinkage void kgdb_handle_exception(unsigned long r4, unsigned long r5,
 }
 
 /* Initialise the KGDB data structures and serial configuration */
-int kgdb_init(void)
+int __init kgdb_init(void)
 {
-        if (!kgdb_enabled)
-                return 1;
-
         in_nmi = 0;
         kgdb_nofault = 0;
         stepped_opcode = 0;