x86/vm86: Clean up vm86.h includes

vm86.h was being implicitly included in alot of places via
processor.h, which in turn got it from math_emu.h. Break that
chain and explicitly include vm86.h in all files that need it.
Also remove unused vm86 field from math_emu_info.

Signed-off-by: Brian Gerst <[e-mail]>
Cc: Andy Lutomirski <[e-mail]>
Cc: Borislav Petkov <[e-mail]>
Cc: Denys Vlasenko <[e-mail]>
Cc: H. Peter Anvin <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Link: http://lkml.kernel.org/r/[e-mail]
[ Fixed build failure. ]
Signed-off-by: Ingo Molnar <[e-mail]>

arch/x86/include/asm/math_emu.h

···
 #define _ASM_X86_MATH_EMU_H
 
 #include <asm/ptrace.h>
-#include <asm/vm86.h>
 
 /* This structure matches the layout of the data saved to the stack
    following a device-not-present interrupt, part of it saved
···
    */
 struct math_emu_info {
 	long ___orig_eip;
-	union {
-		struct pt_regs *regs;
-		struct kernel_vm86_regs *vm86;
-	};
+	struct pt_regs *regs;
 };
 #endif /* _ASM_X86_MATH_EMU_H */

arch/x86/include/asm/syscalls.h

···
 asmlinkage unsigned long sys_sigreturn(void);
 
 /* kernel/vm86_32.c */
+struct vm86_struct;
 asmlinkage long sys_vm86old(struct vm86_struct __user *);
 asmlinkage long sys_vm86(unsigned long, unsigned long);
 

arch/x86/kernel/process_32.c

···
 #include <asm/syscalls.h>
 #include <asm/debugreg.h>
 #include <asm/switch_to.h>
+#include <asm/vm86.h>
 
 asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
 asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");

arch/x86/kernel/signal.c

···
 #include <asm/vdso.h>
 #include <asm/mce.h>
 #include <asm/sighandling.h>
+#include <asm/vm86.h>
 
 #ifdef CONFIG_X86_64
 #include <asm/proto.h>

arch/x86/kernel/traps.c

···
 #include <asm/fpu/xstate.h>
 #include <asm/trace/mpx.h>
 #include <asm/mpx.h>
+#include <asm/vm86.h>
 
 #ifdef CONFIG_X86_64
 #include <asm/x86_init.h>

arch/x86/kernel/vm86_32.c

···
 #include <asm/tlbflush.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
+#include <asm/vm86.h>
 
 /*
  * Known problems:

arch/x86/math-emu/get_address.c

···
 
 #include <asm/uaccess.h>
 #include <asm/desc.h>
+#include <asm/vm86.h>
 
 #include "fpu_system.h"
 #include "exception.h"

arch/x86/mm/fault.c

···
 #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
 #include <asm/fixmap.h>			/* VSYSCALL_ADDR		*/
 #include <asm/vsyscall.h>		/* emulate_vsyscall		*/
+#include <asm/vm86.h>			/* struct vm86			*/
 
 #define CREATE_TRACE_POINTS
 #include <asm/trace/exceptions.h>

drivers/scsi/dpt_i2o.c

···
 #endif
 
 #if defined __i386__
+
+#include <uapi/asm/vm86.h>
+
 static void adpt_i386_info(sysInfo_S* si)
 {
 	// This is all the info we need for now