1 files changed, 5 insertions, 48 deletions

diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index e1940c06ed02..47e5de25ba79 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -9,6 +9,7 @@
 
 #include <linux/compiler.h>
 #include <asm/page.h>
+#include <asm/percpu.h>
 #include <asm/types.h>
 
 /*
@@ -32,12 +33,6 @@ struct thread_info {
         mm_segment_t            addr_limit;
         struct restart_block    restart_block;
         void __user             *sysenter_return;
-#ifdef CONFIG_X86_32
-        unsigned long           previous_esp;   /* ESP of the previous stack in
-                                                   case of nested (IRQ) stacks
-                                                */
-        __u8                    supervisor_stack[0];
-#endif
         unsigned int            sig_on_uaccess_error:1;
         unsigned int            uaccess_err:1;  /* uaccess failed */
 };
@@ -153,9 +148,9 @@ struct thread_info {
 #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
 
-#ifdef CONFIG_X86_32
+#define STACK_WARN              (THREAD_SIZE/8)
+#define KERNEL_STACK_OFFSET     (5*(BITS_PER_LONG/8))
 
-#define STACK_WARN      (THREAD_SIZE/8)
 /*
  * macros/functions for gaining access to the thread information structure
  *
@@ -163,42 +158,6 @@ struct thread_info {
  */
 #ifndef __ASSEMBLY__
 
-#define current_stack_pointer ({                \
-        unsigned long sp;                       \
-        asm("mov %%esp,%0" : "=g" (sp));        \
-        sp;                                     \
-})
-
-/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
-        return (struct thread_info *)
-                (current_stack_pointer & ~(THREAD_SIZE - 1));
-}
-
-#else /* !__ASSEMBLY__ */
-
-/* how to get the thread information struct from ASM */
-#define GET_THREAD_INFO(reg)     \
-        movl $-THREAD_SIZE, reg; \
-        andl %esp, reg
-
-/* use this one if reg already contains %esp */
-#define GET_THREAD_INFO_WITH_ESP(reg) \
-        andl $-THREAD_SIZE, reg
-
-#endif
-
-#else /* X86_32 */
-
-#include <asm/percpu.h>
-#define KERNEL_STACK_OFFSET (5*8)
-
-/*
- * macros/functions for gaining access to the thread information structure
- * preempt_count needs to be 1 initially, until the scheduler is functional.
- */
-#ifndef __ASSEMBLY__
 DECLARE_PER_CPU(unsigned long, kernel_stack);
 
 static inline struct thread_info *current_thread_info(void)
@@ -213,8 +172,8 @@ static inline struct thread_info *current_thread_info(void)
 
 /* how to get the thread information struct from ASM */
 #define GET_THREAD_INFO(reg) \
-        movq PER_CPU_VAR(kernel_stack),reg ; \
-        subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg
+        _ASM_MOV PER_CPU_VAR(kernel_stack),reg ; \
+        _ASM_SUB $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg ;
 
 /*
  * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
@@ -224,8 +183,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif
 
-#endif /* !X86_32 */
-
 /*
  * Thread-synchronous status.
  *