kgdb: remove post_primary_code references

Remove all the references to the kgdb_post_primary_code.  This
function serves no useful purpose because you can obtain the same
information from the "struct kgdb_state *ks" from with in the
debugger, if for some reason you want the data.

Also remove the unintentional duplicate assignment for ks->ex_vector.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>

arch/x86/kernel/kgdb.c

@@ -47,20 +47,8 @@
 #include <asm/debugreg.h>
 #include <asm/apicdef.h>
 #include <asm/system.h>
-
 #include <asm/apic.h>
 
-/*
- * Put the error code here just in case the user cares:
- */
-static int gdb_x86errcode;
-
-/*
- * Likewise, the vector number here (since GDB only gets the signal
- * number through the usual means, and that's not very specific):
- */
-static int gdb_x86vector = -1;
-
 /**
  *	pt_regs_to_gdb_regs - Convert ptrace regs to GDB regs
  *	@gdb_regs: A pointer to hold the registers in the order GDB wants.
@@ -399,23 +387,6 @@ void kgdb_disable_hw_debug(struct pt_regs *regs)
 	}
 }
 
-/**
- *	kgdb_post_primary_code - Save error vector/code numbers.
- *	@regs: Original pt_regs.
- *	@e_vector: Original error vector.
- *	@err_code: Original error code.
- *
- *	This is needed on architectures which support SMP and KGDB.
- *	This function is called after all the slave cpus have been put
- *	to a know spin state and the primary CPU has control over KGDB.
- */
-void kgdb_post_primary_code(struct pt_regs *regs, int e_vector, int err_code)
-{
-	/* primary processor is completely in the debugger */
-	gdb_x86vector = e_vector;
-	gdb_x86errcode = err_code;
-}
-
 #ifdef CONFIG_SMP
 /**
  *	kgdb_roundup_cpus - Get other CPUs into a holding pattern

include/linux/kgdb.h

@@ -35,20 +35,6 @@ struct pt_regs;
  */
 extern int kgdb_skipexception(int exception, struct pt_regs *regs);
 
-/**
- *	kgdb_post_primary_code - (optional) Save error vector/code numbers.
- *	@regs: Original pt_regs.
- *	@e_vector: Original error vector.
- *	@err_code: Original error code.
- *
- *	This is usually needed on architectures which support SMP and
- *	KGDB.  This function is called after all the secondary cpus have
- *	been put to a know spin state and the primary CPU has control over
- *	KGDB.
- */
-extern void kgdb_post_primary_code(struct pt_regs *regs, int e_vector,
-				  int err_code);
-
 /**
  *	kgdb_disable_hw_debug - (optional) Disable hardware debugging hook
  *	@regs: Current &struct pt_regs.

kernel/debug/debug_core.c

@@ -203,12 +203,6 @@ int __weak kgdb_skipexception(int exception, struct pt_regs *regs)
 	return 0;
 }
 
-void __weak
-kgdb_post_primary_code(struct pt_regs *regs, int e_vector, int err_code)
-{
-	return;
-}
-
 /**
  *	kgdb_disable_hw_debug - Disable hardware debugging while we in kgdb.
  *	@regs: Current &struct pt_regs.
@@ -588,7 +582,6 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs)
 	 * At this point the primary processor is completely
 	 * in the debugger and all secondary CPUs are quiescent
 	 */
-	kgdb_post_primary_code(ks->linux_regs, ks->ex_vector, ks->err_code);
 	dbg_deactivate_sw_breakpoints();
 	kgdb_single_step = 0;
 	kgdb_contthread = current;
@@ -678,7 +671,6 @@ kgdb_handle_exception(int evector, int signo, int ecode, struct pt_regs *regs)
 	ks->cpu			= raw_smp_processor_id();
 	ks->ex_vector		= evector;
 	ks->signo		= signo;
-	ks->ex_vector		= evector;
 	ks->err_code		= ecode;
 	ks->kgdb_usethreadid	= 0;
 	ks->linux_regs		= regs;