powerpc/64s: Move SET_SCRATCH0() into EXCEPTION_PROLOG_PSERIES()

EXCEPTION_PROLOG_PSERIES() only has two users, STD_EXCEPTION_PSERIES()
and STD_EXCEPTION_HV() both of which "call" SET_SCRATCH0(), so just
move SET_SCRATCH0() into EXCEPTION_PROLOG_PSERIES().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 1f2efc1..311f6a7 100644 (file)
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -344,6 +344,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
        __EXCEPTION_PROLOG_PSERIES_1_NORI(label, h)
 
 #define EXCEPTION_PROLOG_PSERIES(area, label, h, extra, vec)           \
+       SET_SCRATCH0(r13);              /* save r13 */                  \
        EXCEPTION_PROLOG_0(area);                                       \
        EXCEPTION_PROLOG_1(area, extra, vec);                           \
        EXCEPTION_PROLOG_PSERIES_1(label, h);
@@ -552,7 +553,6 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
  * Exception vectors.
  */
 #define STD_EXCEPTION_PSERIES(vec, label)                      \
-       SET_SCRATCH0(r13);              /* save r13 */          \
        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label,             \
                                 EXC_STD, KVMTEST_PR, vec);     \
 
@@ -567,7 +567,6 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
        EXCEPTION_PROLOG_PSERIES_1(label, EXC_STD)
 
 #define STD_EXCEPTION_HV(loc, vec, label)                      \
-       SET_SCRATCH0(r13);      /* save r13 */                  \
        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label,             \
                                 EXC_HV, KVMTEST_HV, vec);