--- zzzz-none-000/linux-3.10.107/arch/xtensa/kernel/coprocessor.S	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/xtensa/kernel/coprocessor.S	2021-02-04 17:41:59.000000000 +0000
@@ -32,9 +32,9 @@
  *   a0:	trashed, original value saved on stack (PT_AREG0)
  *   a1:	a1
  *   a2:	new stack pointer, original in DEPC
- *   a3:	dispatch table
+ *   a3:	a3
  *   depc:	a2, original value saved on stack (PT_DEPC)
- *   excsave_1:	a3
+ *   excsave_1:	dispatch table
  *
  *   PT_DEPC >= VALID_DOUBLE_EXCEPTION_ADDRESS: double exception, DEPC
  *	     <  VALID_DOUBLE_EXCEPTION_ADDRESS: regular exception
@@ -225,9 +225,9 @@
  *   a0:	trashed, original value saved on stack (PT_AREG0)
  *   a1:	a1
  *   a2:	new stack pointer, original in DEPC
- *   a3:	dispatch table
+ *   a3:	a3
  *   depc:	a2, original value saved on stack (PT_DEPC)
- *   excsave_1:	a3
+ *   excsave_1:	dispatch table
  *
  *   PT_DEPC >= VALID_DOUBLE_EXCEPTION_ADDRESS: double exception, DEPC
  *	     <  VALID_DOUBLE_EXCEPTION_ADDRESS: regular exception
@@ -245,7 +245,6 @@
 
 	/* Save remaining registers a1-a3 and SAR */
 
-	xsr	a3, excsave1
 	s32i	a3, a2, PT_AREG3
 	rsr	a3, sar
 	s32i	a1, a2, PT_AREG1