[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>
diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index d187ab7..56ca0c6 100644
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -39,9 +39,9 @@
 		printk("Algorithmics/MIPS FPU Emulator v1.5\n");
 	}
 
-	current->thread.fpu.soft.fcr31 = 0;
+	current->thread.fpu.fcr31 = 0;
 	for (i = 0; i < 32; i++) {
-		current->thread.fpu.soft.fpr[i] = SIGNALLING_NAN;
+		current->thread.fpu.fpr[i] = SIGNALLING_NAN;
 	}
 }
 
@@ -59,10 +59,9 @@
 
 	for (i = 0; i < 32; i++) {
 		err |=
-		    __put_user(current->thread.fpu.soft.fpr[i],
-			       &sc->sc_fpregs[i]);
+		    __put_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
 	}
-	err |= __put_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
+	err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
 
 	return err;
 }
@@ -74,10 +73,9 @@
 
 	for (i = 0; i < 32; i++) {
 		err |=
-		    __get_user(current->thread.fpu.soft.fpr[i],
-			       &sc->sc_fpregs[i]);
+		    __get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
 	}
-	err |= __get_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
+	err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
 
 	return err;
 }
@@ -94,10 +92,9 @@
 
 	for (i = 0; i < 32; i+=2) {
 		err |=
-		    __put_user(current->thread.fpu.soft.fpr[i],
-			       &sc->sc_fpregs[i]);
+		    __put_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
 	}
-	err |= __put_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
+	err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
 
 	return err;
 }
@@ -109,10 +106,9 @@
 
 	for (i = 0; i < 32; i+=2) {
 		err |=
-		    __get_user(current->thread.fpu.soft.fpr[i],
-			       &sc->sc_fpregs[i]);
+		    __get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
 	}
-	err |= __get_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
+	err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
 
 	return err;
 }