powerpc: Enforce usage of R0-R31 where possible

Enforce the use of R0-R31 in macros where possible now we have all the
fixes in.

R0-R31 macros are removed here so that can't be used anymore.  They
should not be defined anywhere.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 7 insertions, 5 deletions

diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 71c1c73bc65f..e0ada05f2df3 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -26,7 +26,7 @@
 #include <asm/ptrace.h>
 
 #ifdef CONFIG_VSX
-#define REST_32FPVSRS(n,c,base)                                         \
+#define __REST_32FPVSRS(n,c,base)                                       \
 BEGIN_FTR_SECTION                                                       \
         b       2f;                                                     \
 END_FTR_SECTION_IFSET(CPU_FTR_VSX);                                     \
@@ -35,7 +35,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX);					\
 2:      REST_32VSRS(n,c,base);                                          \
 3:
 
-#define SAVE_32FPVSRS(n,c,base)                                         \
+#define __SAVE_32FPVSRS(n,c,base)                                       \
 BEGIN_FTR_SECTION                                                       \
         b       2f;                                                     \
 END_FTR_SECTION_IFSET(CPU_FTR_VSX);                                     \
@@ -44,9 +44,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX);					\
 2:      SAVE_32VSRS(n,c,base);                                          \
 3:
 #else
-#define REST_32FPVSRS(n,b,base) REST_32FPRS(n, base)
-#define SAVE_32FPVSRS(n,b,base) SAVE_32FPRS(n, base)
+#define __REST_32FPVSRS(n,b,base)       REST_32FPRS(n, base)
+#define __SAVE_32FPVSRS(n,b,base)       SAVE_32FPRS(n, base)
 #endif
+#define REST_32FPVSRS(n,c,base) __REST_32FPVSRS(n,__REG_##c,__REG_##base)
+#define SAVE_32FPVSRS(n,c,base) __SAVE_32FPVSRS(n,__REG_##c,__REG_##base)
 
 /*
  * This task wants to use the FPU now.
@@ -79,7 +81,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
         beq     1f
         toreal(r4)
         addi    r4,r4,THREAD            /* want last_task_used_math->thread */
-        SAVE_32FPVSRS(0, r5, r4)
+        SAVE_32FPVSRS(0, R5, R4)
         mffs    fr0
         stfd    fr0,THREAD_FPSCR(r4)
         PPC_LL  r5,PT_REGS(r4)