powerpc/64s: Drop _MASKABLE_EXCEPTION_PSERIES()

_MASKABLE_EXCEPTION_PSERIES() does nothing useful, update all callers
to use __MASKABLE_EXCEPTION_PSERIES() directly.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/exception-64s.h

@@ -629,11 +629,8 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
 	MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec, bitmask);	\
 	EXCEPTION_PROLOG_2(label, h);
 
-#define _MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra, bitmask)	\
-	__MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra, bitmask)
-
 #define MASKABLE_EXCEPTION_PSERIES(loc, vec, label, bitmask)		\
-	_MASKABLE_EXCEPTION_PSERIES(vec, label,				\
+	__MASKABLE_EXCEPTION_PSERIES(vec, label,			\
 				     EXC_STD, SOFTEN_TEST_PR, bitmask)
 
 #define MASKABLE_EXCEPTION_PSERIES_OOL(vec, label, bitmask)		\
@@ -641,7 +638,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
 	EXCEPTION_PROLOG_2(label, EXC_STD)
 
 #define MASKABLE_EXCEPTION_HV(loc, vec, label, bitmask)			\
-	_MASKABLE_EXCEPTION_PSERIES(vec, label,				\
+	__MASKABLE_EXCEPTION_PSERIES(vec, label,			\
 				     EXC_HV, SOFTEN_TEST_HV, bitmask)
 
 #define MASKABLE_EXCEPTION_HV_OOL(vec, label, bitmask)			\

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

@@ -768,11 +768,11 @@ EXC_REAL_BEGIN(hardware_interrupt, 0x500, 0x100)
 	.globl hardware_interrupt_hv;
 hardware_interrupt_hv:
 	BEGIN_FTR_SECTION
-		_MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt_common,
+		__MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt_common,
 					    EXC_HV, SOFTEN_TEST_HV,
 					    IRQS_DISABLED)
 	FTR_SECTION_ELSE
-		_MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt_common,
+		__MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt_common,
 					    EXC_STD, SOFTEN_TEST_PR,
 					    IRQS_DISABLED)
 	ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)