[ros-diffs] [navaraf] 17074: Don't save and restore previous mode in trap handlers. This allows us to call KeGetPreviousMode() from exception handlers and get the right value.

Don't save and restore previous mode in trap handlers. This allows us to
call KeGetPreviousMode() from exception handlers and get the right
value.
Modified: trunk/reactos/ntoskrnl/ke/i386/trap.s
  _____  

Modified: trunk/reactos/ntoskrnl/ke/i386/trap.s
--- trunk/reactos/ntoskrnl/ke/i386/trap.s	2005-08-05 17:28:17 UTC
(rev 17073)
+++ trunk/reactos/ntoskrnl/ke/i386/trap.s	2005-08-05 18:26:43 UTC
(rev 17074)
@@ -45,13 +45,8 @@

 	popl	%edx
 	popl	%ecx
 	popl	%eax
-
-	/* Restore the old previous mode */
 	popl	%ebx
-	cmpl	$0, %esi
-	je	.L7
-	movb	%bl, %ss:KTHREAD_PREVIOUS_MODE(%esi)
-.L7:
+
 	/* Restore the old exception handler list */
 	popl	%ebx
 	movl	%ebx, %fs:KPCR_EXCEPTION_LIST
@@ -140,13 +135,6 @@
         /* Set the new previous mode based on the saved CS selector */
 	movl	 KTRAP_FRAME_CS(%ebp), %eax
 	andl     $0x0000FFFF, %eax
-	cmpl     $KERNEL_CS, %eax
-	jne      .L1
-	movb     $KernelMode, KTHREAD_PREVIOUS_MODE(%edi)
-	jmp      .L3
-.L1:
-	movb     $UserMode, KTHREAD_PREVIOUS_MODE(%edi)
-.L3:
 
 	/* Save the old trap frame. */
 	movl	KTHREAD_TRAP_FRAME(%edi), %edx