[PATCH v5 03/13] powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64

[Christophe Leroy]

Drop a bunch of #ifdefs CONFIG_PPC64 that are not vital.

Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
 arch/powerpc/include/asm/ptrace.h   |  2 ++
 arch/powerpc/kernel/ptrace/ptrace.c | 18 +++---------------
 2 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/arch/powerpc/include/asm/ptrace.h 
b/arch/powerpc/include/asm/ptrace.h
index ee3ada66deb5..8e1953d99353 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -276,6 +276,8 @@ static inline unsigned long 
regs_get_kernel_stack_nth(struct pt_regs *regs,
 #endif /* __ASSEMBLY__ */
 
 #ifndef __powerpc64__
+/* We need PT_SOFTE defined at all time to avoid #ifdefs */
+#define PT_SOFTE PT_MQ
 #else /* __powerpc64__ */
 #define PT_FPSCR32 (PT_FPR0 + 2*32 + 1)        /* each FP reg occupies 2 
32-bit userspace slots */
 #define PT_VR0_32 164  /* each Vector reg occupies 4 slots in 32-bit */
diff --git a/arch/powerpc/kernel/ptrace/ptrace.c 
b/arch/powerpc/kernel/ptrace/ptrace.c
index 7ed54dbb2d7e..3dd94c296ac7 100644
--- a/arch/powerpc/kernel/ptrace/ptrace.c
+++ b/arch/powerpc/kernel/ptrace/ptrace.c
@@ -274,17 +274,15 @@ int ptrace_get_reg(struct task_struct *task, int regno, 
unsigned long *data)
        if (regno == PT_DSCR)
                return get_user_dscr(task, data);
 
-#ifdef CONFIG_PPC64
        /*
         * softe copies paca->irq_soft_mask variable state. Since irq_soft_mask 
is
         * no more used as a flag, lets force usr to alway see the softe value 
as 1
         * which means interrupts are not soft disabled.
         */
-       if (regno == PT_SOFTE) {
+       if (IS_ENABLED(CONFIG_PPC64) && regno == PT_SOFTE) {
                *data = 1;
                return  0;
        }
-#endif
 
        regs_max = sizeof(struct user_pt_regs) / sizeof(unsigned long);
        if (regno < regs_max) {
@@ -1998,7 +1996,6 @@ static const struct user_regset_view user_ppc_native_view 
= {
        .regsets = native_regsets, .n = ARRAY_SIZE(native_regsets)
 };
 
-#ifdef CONFIG_PPC64
 #include <linux/compat.h>
 
 static int gpr32_get_common(struct task_struct *target,
@@ -2272,14 +2269,11 @@ static const struct user_regset_view 
user_ppc_compat_view = {
        .name = "ppc", .e_machine = EM_PPC, .ei_osabi = ELF_OSABI,
        .regsets = compat_regsets, .n = ARRAY_SIZE(compat_regsets)
 };
-#endif /* CONFIG_PPC64 */
 
 const struct user_regset_view *task_user_regset_view(struct task_struct *task)
 {
-#ifdef CONFIG_PPC64
-       if (test_tsk_thread_flag(task, TIF_32BIT))
+       if (IS_ENABLED(CONFIG_PPC64) && test_tsk_thread_flag(task, TIF_32BIT))
                return &user_ppc_compat_view;
-#endif
        return &user_ppc_native_view;
 }
 
@@ -3063,11 +3057,7 @@ long arch_ptrace(struct task_struct *child, long request,
                else
                        dbginfo.num_data_bps = 0;
                dbginfo.num_condition_regs = 0;
-#ifdef CONFIG_PPC64
-               dbginfo.data_bp_alignment = 8;
-#else
-               dbginfo.data_bp_alignment = 4;
-#endif
+               dbginfo.data_bp_alignment = sizeof(long);
                dbginfo.sizeof_condition = 0;
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
                dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
@@ -3304,12 +3294,10 @@ long do_syscall_trace_enter(struct pt_regs *regs)
        if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
                trace_sys_enter(regs, regs->gpr[0]);
 
-#ifdef CONFIG_PPC64
        if (!is_32bit_task())
                audit_syscall_entry(regs->gpr[0], regs->gpr[3], regs->gpr[4],
                                    regs->gpr[5], regs->gpr[6]);
        else
-#endif
                audit_syscall_entry(regs->gpr[0],
                                    regs->gpr[3] & 0xffffffff,
                                    regs->gpr[4] & 0xffffffff,
-- 
2.25.0