powerpc/64s/exception: Merge EXCEPTION_PROLOG_COMMON_2/3

Merge EXCEPTION_PROLOG_COMMON_3 into EXCEPTION_PROLOG_COMMON_2.

No generated code change except BUG line number constants.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-29-npiggin@gmail.com

arch/powerpc/kernel/exceptions-64s.S

@@ -399,7 +399,7 @@ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
 	std	r10,GPR1(r1);		/* save r1 in stackframe	*/ \
 
 /* Save original regs values from save area to stack frame. */
-#define EXCEPTION_PROLOG_COMMON_2(area)					   \
+#define EXCEPTION_PROLOG_COMMON_2(area, trap)				   \
 	ld	r9,area+EX_R9(r13);	/* move r9, r10 to stackframe	*/ \
 	ld	r10,area+EX_R10(r13);					   \
 	std	r9,GPR9(r1);						   \
@@ -415,9 +415,7 @@ BEGIN_FTR_SECTION_NESTED(66);						   \
 	std	r10,ORIG_GPR3(r1);					   \
 END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66);			   \
 	GET_CTR(r10, area);						   \
-	std	r10,_CTR(r1);
-
-#define EXCEPTION_PROLOG_COMMON_3(trap)					   \
+	std	r10,_CTR(r1);						   \
 	std	r2,GPR2(r1);		/* save r2 in stackframe	*/ \
 	SAVE_4GPRS(3, r1);		/* save r3 - r6 in stackframe   */ \
 	SAVE_2GPRS(7, r1);		/* save r7, r8 in stackframe	*/ \
@@ -453,8 +451,7 @@ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66);			   \
 	beq	4f;			/* if from kernel mode		*/ \
 	ACCOUNT_CPU_USER_ENTRY(r13, r9, r10);				   \
 	SAVE_PPR(area, r9);						   \
-4:	EXCEPTION_PROLOG_COMMON_2(area);				   \
-	EXCEPTION_PROLOG_COMMON_3(trap);				   \
+4:	EXCEPTION_PROLOG_COMMON_2(area, trap);				   \
 	ACCOUNT_STOLEN_TIME
 
 /*
@@ -464,8 +461,7 @@ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66);			   \
 #define EXCEPTION_COMMON_STACK(area, trap)			\
 	EXCEPTION_PROLOG_COMMON_1();				\
 	kuap_save_amr_and_lock r9, r10, cr1;			\
-	EXCEPTION_PROLOG_COMMON_2(area);			\
-	EXCEPTION_PROLOG_COMMON_3(trap)
+	EXCEPTION_PROLOG_COMMON_2(area, trap)
 
 /*
  * Restore all registers including H/SRR0/1 saved in a stack frame of a
@@ -968,8 +964,7 @@ EXC_COMMON_BEGIN(machine_check_early_common)
 
 	EXCEPTION_PROLOG_COMMON_1()
 	/* We don't touch AMR here, we never go to virtual mode */
-	EXCEPTION_PROLOG_COMMON_2(PACA_EXMC)
-	EXCEPTION_PROLOG_COMMON_3(0x200)
+	EXCEPTION_PROLOG_COMMON_2(PACA_EXMC, 0x200)
 
 	ld	r3,PACA_EXMC+EX_DAR(r13)
 	lwz	r4,PACA_EXMC+EX_DSISR(r13)
@@ -1616,8 +1611,7 @@ EXC_COMMON_BEGIN(hmi_exception_early_common)
 	subi	r1,r1,INT_FRAME_SIZE	/* alloc stack frame		*/
 	EXCEPTION_PROLOG_COMMON_1()
 	/* We don't touch AMR here, we never go to virtual mode */
-	EXCEPTION_PROLOG_COMMON_2(PACA_EXGEN)
-	EXCEPTION_PROLOG_COMMON_3(0xe60)
+	EXCEPTION_PROLOG_COMMON_2(PACA_EXGEN, 0xe60)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	hmi_exception_realmode
 	cmpdi	cr0,r3,0