powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 386d57f..407e293 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -179,7 +179,7 @@
 	mtspr	SPRN_HID1,r4
 
 	/* Store new HID1 image */
-	rlwinm	r6,r1,0,0,(31-THREAD_SHIFT)
+	CURRENT_THREAD_INFO(r6, r1)
 	lwz	r6,TI_CPU(r6)
 	slwi	r6,r6,2
 	addis	r6,r6,nap_save_hid1@ha
@@ -699,7 +699,7 @@
 #ifdef CONFIG_SMP
 _GLOBAL(start_secondary_resume)
 	/* Reset stack */
-	rlwinm	r1,r1,0,0,(31-THREAD_SHIFT)	/* current_thread_info() */
+	CURRENT_THREAD_INFO(r1, r1)
 	addi	r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
 	li	r3,0
 	stw	r3,0(r1)		/* Zero the stack frame pointer	*/