Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] stacktrace bug.
  [S390] cio: remove casts from/to (void *).
  [S390] cio: Remove grace period for vary off chpid.
  [S390] cio: Use ccw_dev_id and subchannel_id in ccw_device_private
  [S390] monwriter kzalloc size.
  [S390] cio: add missing KERN_INFO printk header.
  [S390] irq change improvements.

3 files changed, 14 insertions, 15 deletions

diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index c49ab8c784d..4faf96f8a83 100644
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -117,8 +117,8 @@ void do_extint(struct pt_regs *regs, unsigned short code)
         int index;
 	struct pt_regs *old_regs;
 
-	irq_enter();
 	old_regs = set_irq_regs(regs);
+	irq_enter();
 	asm volatile ("mc 0,0");
 	if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
 		/**
@@ -134,8 +134,8 @@ void do_extint(struct pt_regs *regs, unsigned short code)
 				p->handler(code);
 		}
 	}
-	set_irq_regs(old_regs);
 	irq_exit();
+	set_irq_regs(old_regs);
 }
 
 EXPORT_SYMBOL(register_external_interrupt);
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index d9428a0fc8f..0d14a4789bf 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -62,27 +62,26 @@ static inline unsigned long save_context_stack(struct stack_trace *trace,
 void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
 {
 	register unsigned long sp asm ("15");
-	unsigned long orig_sp;
+	unsigned long orig_sp, new_sp;
 
-	sp &= PSW_ADDR_INSN;
-	orig_sp = sp;
+	orig_sp = sp & PSW_ADDR_INSN;
 
-	sp = save_context_stack(trace, &trace->skip, sp,
+	new_sp = save_context_stack(trace, &trace->skip, orig_sp,
 				S390_lowcore.panic_stack - PAGE_SIZE,
 				S390_lowcore.panic_stack);
-	if ((sp != orig_sp) && !trace->all_contexts)
+	if ((new_sp != orig_sp) && !trace->all_contexts)
 		return;
-	sp = save_context_stack(trace, &trace->skip, sp,
+	new_sp = save_context_stack(trace, &trace->skip, new_sp,
 				S390_lowcore.async_stack - ASYNC_SIZE,
 				S390_lowcore.async_stack);
-	if ((sp != orig_sp) && !trace->all_contexts)
+	if ((new_sp != orig_sp) && !trace->all_contexts)
 		return;
 	if (task)
-		save_context_stack(trace, &trace->skip, sp,
+		save_context_stack(trace, &trace->skip, new_sp,
 				   (unsigned long) task_stack_page(task),
 				   (unsigned long) task_stack_page(task) + THREAD_SIZE);
 	else
-		save_context_stack(trace, &trace->skip, sp,
+		save_context_stack(trace, &trace->skip, new_sp,
 				   S390_lowcore.thread_info,
 				   S390_lowcore.thread_info + THREAD_SIZE);
 	return;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 1d7d3938b2b..21baaf5496d 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -209,11 +209,11 @@ static void list_add_sorted(struct vtimer_list *timer, struct list_head *head)
  * Do the callback functions of expired vtimer events.
  * Called from within the interrupt handler.
  */
-static void do_callbacks(struct list_head *cb_list, struct pt_regs *regs)
+static void do_callbacks(struct list_head *cb_list)
 {
 	struct vtimer_queue *vt_list;
 	struct vtimer_list *event, *tmp;
-	void (*fn)(unsigned long, struct pt_regs*);
+	void (*fn)(unsigned long);
 	unsigned long data;
 
 	if (list_empty(cb_list))
@@ -224,7 +224,7 @@ static void do_callbacks(struct list_head *cb_list, struct pt_regs *regs)
 	list_for_each_entry_safe(event, tmp, cb_list, entry) {
 		fn = event->function;
 		data = event->data;
-		fn(data, regs);
+		fn(data);
 
 		if (!event->interval)
 			/* delete one shot timer */
@@ -275,7 +275,7 @@ static void do_cpu_timer_interrupt(__u16 error_code)
 		list_move_tail(&event->entry, &cb_list);
 	}
 	spin_unlock(&vt_list->lock);
-	do_callbacks(&cb_list, get_irq_regs());
+	do_callbacks(&cb_list);
 
 	/* next event is first in list */
 	spin_lock(&vt_list->lock);