sh: kgdb section mismatches and tidying.

The kgdb console setup was callable from a left-over deferred
initialization path, which in turn depends on __init symbols. Since
the deferred initialization was removed some time ago, kill off the
rest of those remnants and move kgdb_init() and friends to __init.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 3 insertions, 42 deletions

diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c
index edd1ec214e6d..27f64b92aff0 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
@@ -640,7 +633,6 @@ static void do_single_step(void)
 
         /* Flush and return */
         kgdb_flush_icache_range((long) addr, (long) addr + 2);
-        return;
 }
 
 /* Undo a single step */
@@ -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;