ARM: 8075/1: oprofile: Use of arm_get_current_stackframe

Use the newly introduced API so that FP is correctly referenced from
either R7/R11 based on whether we are running in THUMB2 mode or not.

Signed-off-by: Nikolay Borisov <Nikolay.Borisov@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Robert Richter <rric@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/oprofile/common.c

@@ -107,10 +107,7 @@ static void arm_backtrace(struct pt_regs * const regs, unsigned int depth)
 
 	if (!user_mode(regs)) {
 		struct stackframe frame;
-		frame.fp = regs->ARM_fp;
+		arm_get_current_stackframe(regs, &frame);
-		frame.sp = regs->ARM_sp;
-		frame.lr = regs->ARM_lr;
-		frame.pc = regs->ARM_pc;
 		walk_stackframe(&frame, report_trace, &depth);
 		return;
 	}