[PATCH 1/2] powerpc/sstep: Consistently use one define to check arch bit width

From: Link Mauve

Date: Wed Jul 29 2026 - 16:51:29 EST


Previously, both CONFIG_PPC64 and __powerpc64__ were being used to check
whether we were on 32-bit or on 64-bit PowerPC, sometimes in a single
function.

I picked __powerpc64__ since it was used six times as much as
CONFIG_PPC64 in this file, but could be convinced to use the other one
if there is any reason to prefer it.

Signed-off-by: Link Mauve <linkmauve@xxxxxxxxxxxx>
---
arch/powerpc/lib/sstep.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index f0d6aa657c1a..597a0d841fe8 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -15,7 +15,7 @@
#include <asm/cputable.h>
#include <asm/disassemble.h>

-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
/* Bits in SRR1 that are copied from MSR */
#define MSR_MASK 0xffffffff87c0ffffUL
#else
@@ -1256,7 +1256,7 @@ static nokprobe_inline void do_popcnt(const struct pt_regs *regs,
op->val = out; /* popcntd */
}

-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
static nokprobe_inline void do_bpermd(const struct pt_regs *regs,
struct instruction_op *op,
unsigned long v1, unsigned long v2)
@@ -1273,7 +1273,7 @@ static nokprobe_inline void do_bpermd(const struct pt_regs *regs,
}
op->val = perm;
}
-#endif /* CONFIG_PPC64 */
+#endif /* __powerpc64__ */
/*
* The size parameter adjusts the equivalent prty instruction.
* prtyw = 32, prtyd = 64
@@ -1340,7 +1340,7 @@ static nokprobe_inline int trap_compare(long v1, long v2)
int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
ppc_inst_t instr)
{
-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
unsigned int suffixopcode, prefixtype, prefix_r;
#endif
unsigned int opcode, ra, rb, rc, rd, spr, u;
@@ -1739,7 +1739,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
op->reg = rd;
op->val = 0xffffffff & ~(MSR_ME | MSR_LE);
return 0;
-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
case 178: /* mtmsrd */
if (user_mode(regs))
goto priv;
@@ -2054,7 +2054,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
case 186: /* prtyd */
do_prty(regs, op, regs->gpr[rd], 64);
goto logical_done_nocc;
-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
case 252: /* bpermd */
do_bpermd(regs, op, regs->gpr[rd], regs->gpr[rb]);
goto logical_done_nocc;
@@ -2082,7 +2082,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
case 476: /* nand */
op->val = ~(regs->gpr[rd] & regs->gpr[rb]);
goto logical_done;
-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
case 506: /* popcntd */
do_popcnt(regs, op, regs->gpr[rd], 64);
goto logical_done_nocc;
@@ -3247,7 +3247,7 @@ void emulate_update_regs(struct pt_regs *regs, struct instruction_op *op)
case BARRIER_EIEIO:
eieio();
break;
-#ifdef CONFIG_PPC64
+#ifdef __powerpc64__
case BARRIER_LWSYNC:
asm volatile("lwsync" : : : "memory");
break;
--
2.55.0