[MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs.

The struct mips_fpu_soft_struct and mips_fpu_hard_struct are
completely same now and the kernel fpu emulator assumes that.  This
patch unifies them to mips_fpu_struct and get rid of mips_fpu_union.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 8 insertions, 18 deletions

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 9b4733c1239..1d44025188d 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -120,11 +120,11 @@ int ptrace_getfpregs (struct task_struct *child, __u32 __user *data)
 			__put_user ((__u64) -1, i + (__u64 __user *) data);
 	}
 
+	__put_user (child->thread.fpu.fcr31, data + 64);
+
 	if (cpu_has_fpu) {
 		unsigned int flags, tmp;
 
-		__put_user (child->thread.fpu.hard.fcr31, data + 64);
-
 		preempt_disable();
 		if (cpu_has_mipsmt) {
 			unsigned int vpflags = dvpe();
@@ -142,7 +142,6 @@ int ptrace_getfpregs (struct task_struct *child, __u32 __user *data)
 		preempt_enable();
 		__put_user (tmp, data + 65);
 	} else {
-		__put_user (child->thread.fpu.soft.fcr31, data + 64);
 		__put_user ((__u32) 0, data + 65);
 	}
 
@@ -162,10 +161,7 @@ int ptrace_setfpregs (struct task_struct *child, __u32 __user *data)
 	for (i = 0; i < 32; i++)
 		__get_user (fregs[i], i + (__u64 __user *) data);
 
-	if (cpu_has_fpu)
-		__get_user (child->thread.fpu.hard.fcr31, data + 64);
-	else
-		__get_user (child->thread.fpu.soft.fcr31, data + 64);
+	__get_user (child->thread.fpu.fcr31, data + 64);
 
 	/* FIR may not be written.  */
 
@@ -241,10 +237,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			tmp = regs->lo;
 			break;
 		case FPC_CSR:
-			if (cpu_has_fpu)
-				tmp = child->thread.fpu.hard.fcr31;
-			else
-				tmp = child->thread.fpu.soft.fcr31;
+			tmp = child->thread.fpu.fcr31;
 			break;
 		case FPC_EIR: {	/* implementation / version register */
 			unsigned int flags;
@@ -336,9 +329,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 			if (!tsk_used_math(child)) {
 				/* FP not yet used  */
-				memset(&child->thread.fpu.hard, ~0,
-				       sizeof(child->thread.fpu.hard));
-				child->thread.fpu.hard.fcr31 = 0;
+				memset(&child->thread.fpu, ~0,
+				       sizeof(child->thread.fpu));
+				child->thread.fpu.fcr31 = 0;
 			}
 #ifdef CONFIG_32BIT
 			/*
@@ -369,10 +362,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			regs->lo = data;
 			break;
 		case FPC_CSR:
-			if (cpu_has_fpu)
-				child->thread.fpu.hard.fcr31 = data;
-			else
-				child->thread.fpu.soft.fcr31 = data;
+			child->thread.fpu.fcr31 = data;
 			break;
 		case DSP_BASE ... DSP_BASE + 5: {
 			dspreg_t *dregs;