Unify trap handler naming and remove unused kernel mode stack setup

xtoskrnl/ar/amd64/archsup.S

@@ -119,11 +119,11 @@ Ar\Type\Vector:
     mov %al, KTRAP_FRAME_PreviousMode(%rbp)
 
     /* Skip swapgs as the interrupt originated from kernel mode */
-    jz UserMode\Type\Vector
+    jz Dispatch\Type\Vector
 
     swapgs
 
-UserMode\Type\Vector:
+Dispatch\Type\Vector:
     /* Set up trap frame pointer for the dispatcher and clear the direction flag */
     mov %rsp, %rcx
     cld
@@ -150,11 +150,11 @@ UserMode\Type\Vector:
 
     /* Test previous mode and swapgs if needed */
     testb $1, KTRAP_FRAME_PreviousMode(%rbp)
-    jz KernelModeReturn\Type\Vector
+    jz RestoreState\Type\Vector
     cli
     swapgs
 
-KernelModeReturn\Type\Vector:
+RestoreState\Type\Vector:
     /* Restore XMM registers */
     movdqa KTRAP_FRAME_Xmm0(%rbp), %xmm0
     movdqa KTRAP_FRAME_Xmm1(%rbp), %xmm1

xtoskrnl/ar/i686/archsup.S

@@ -115,7 +115,7 @@ _Ar\Type\Vector\()Start:
         mov KTRAP_FRAME_SegCs(%ebp), %ax
         and $3, %al
         mov %al, KTRAP_FRAME_PreviousMode(%ebp)
-        jz KernelMode\Type\Vector
+        jz Dispatch\Type\Vector
 
         /* Load Kernel PB selector into FS */
         mov $KGDT_R0_PB, %ax
@@ -126,16 +126,7 @@ _Ar\Type\Vector\()Start:
         mov %ax, %ds
         mov %ax, %es
 
-        jmp UserMode\Type\Vector
-
-KernelMode\Type\Vector:
-        /* Save kernel stack pointer (SS:ESP) */
-        movl %ss, %eax
-        mov %eax, KTRAP_FRAME_SegSs(%ebp)
-        lea KTRAP_FRAME_Esp(%ebp), %eax
-        mov %eax, KTRAP_FRAME_Esp(%ebp)
-
-UserMode\Type\Vector:
+Dispatch\Type\Vector:
         /* Push Frame Pointer and clear direction flag */
         push %esp
         cld
@@ -153,10 +144,10 @@ UserMode\Type\Vector:
 
         /* Test previous mode and disable interrupts before user mode return */
         testb $1, KTRAP_FRAME_PreviousMode(%ebp)
-        jz KernelModeReturn\Type\Vector
+        jz RestoreState\Type\Vector
         cli
 
-KernelModeReturn\Type\Vector:
+RestoreState\Type\Vector:
         /* Restore segment selectors */
         mov KTRAP_FRAME_SegDs(%ebp), %ds
         mov KTRAP_FRAME_SegEs(%ebp), %es