Commit 66389e85 authored Sep 14, 2012 by Heiko Carstens Committed by Martin Schwidefsky Sep 26, 2012

s390/ptrace: add missing ifdef

if (MACHINE_HAS_TE) translates to if (0) on !CONFIG_64BIT however the
compiler still warns about invalid shifts within non-reachable code.
So add an explicit ifdef to get rid of this warning:

arch/s390/kernel/ptrace.c: In function ‘update_per_regs’:
arch/s390/kernel/ptrace.c:63:4: warning: left shift count >= width of type [enabled by default]
arch/s390/kernel/ptrace.c:65:4: warning: left shift count >= width of type [enabled by default]

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 1a0f2487

arch/s390/kernel/ptrace.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -53,6 +53,7 @@ void update_per_regs(struct task_struct *task)
		struct thread_struct *thread = &task->thread;
		struct per_regs old, new;

		#ifdef CONFIG_64BIT
		/* Take care of the enable/disable of transactional execution. */
		if (MACHINE_HAS_TE) {
		unsigned long cr0, cr0_new;
		@@ -67,7 +68,7 @@ void update_per_regs(struct task_struct *task)
		if (cr0 != cr0_new)
		__ctl_load(cr0_new, 0, 0);
		}

		#endif
		/* Copy user specified PER registers */
		new.control = thread->per_user.control;
		new.start = thread->per_user.start;