[S390] irq change improvements.

Remove the last few places where a pointer to pt_regs gets passed.
Also make sure we call set_irq_regs() before irq_enter() and after
irq_exit(). This doesn't fix anything but makes sure s390 looks the
same like all other architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 2b1e6c9..45c9fa7 100644 (file)
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -109,7 +109,7 @@ static LIST_HEAD(appldata_ops_list);
  *
  * schedule work and reschedule timer
  */
-static void appldata_timer_function(unsigned long data, struct pt_regs *regs)
+static void appldata_timer_function(unsigned long data)
 {
        P_DEBUG("   -= Timer =-\n");
        P_DEBUG("CPU: %i, expire_count: %i\n", smp_processor_id(),

diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index c49ab8c..4faf96f 100644 (file)
--- 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/vtime.c b/arch/s390/kernel/vtime.c
index 1d7d393..21baaf5 100644 (file)
--- 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);

diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index f18b162..8936e46 100644 (file)
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -609,8 +609,8 @@ do_IRQ (struct pt_regs *regs)
        struct irb *irb;
        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)
                /**
@@ -655,8 +655,8 @@ do_IRQ (struct pt_regs *regs)
                 * out of the sie which costs more cycles than it saves.
                 */
        } while (!MACHINE_IS_VM && tpi (NULL) != 0);
+       irq_exit();
        set_irq_regs(old_regs);
-       irq_exit ();
 }
 
 #ifdef CONFIG_CCW_CONSOLE

diff --git a/include/asm-s390/timer.h b/include/asm-s390/timer.h
index fcd6c25..30e5cbe 100644 (file)
--- a/include/asm-s390/timer.h
+++ b/include/asm-s390/timer.h
@@ -26,7 +26,7 @@ struct vtimer_list {
        spinlock_t lock;
        unsigned long magic;
 
-       void (*function)(unsigned long, struct pt_regs*);
+       void (*function)(unsigned long);
        unsigned long data;
 };