Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[cascardo/linux.git] / arch / arm / mach-at91 / at91rm9200_time.c

diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index 309f351..2500f41 100644 (file)
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -58,6 +58,12 @@ static irqreturn_t at91rm9200_timer_interrupt(int irq, void *dev_id)
 {
        u32     sr = at91_sys_read(AT91_ST_SR) & irqmask;
 
+       /*
+        * irqs should be disabled here, but as the irq is shared they are only
+        * guaranteed to be off if the timer irq is registered first.
+        */
+       WARN_ON_ONCE(!irqs_disabled());
+
        /* simulate "oneshot" timer with alarm */
        if (sr & AT91_ST_ALMS) {
                clkevt.event_handler(&clkevt);
@@ -132,24 +138,11 @@ clkevt32k_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 static int
 clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev)
 {
-       unsigned long   flags;
        u32             alm;
        int             status = 0;
 
        BUG_ON(delta < 2);
 
-       /* Use "raw" primitives so we behave correctly on RT kernels. */
-       raw_local_irq_save(flags);
-
-       /*
-        * According to Thomas Gleixner irqs are already disabled here.  Simply
-        * removing raw_local_irq_save above (and the matching
-        * raw_local_irq_restore) was not accepted.  See
-        * http://thread.gmane.org/gmane.linux.ports.arm.kernel/41174
-        * So for now (2008-11-20) just warn once if irqs were not disabled ...
-        */
-       WARN_ON_ONCE(!raw_irqs_disabled_flags(flags));
-
        /* The alarm IRQ uses absolute time (now+delta), not the relative
         * time (delta) in our calling convention.  Like all clockevents
         * using such "match" hardware, we have a race to defend against.
@@ -169,7 +162,6 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev)
        alm += delta;
        at91_sys_write(AT91_ST_RTAR, alm);
 
-       raw_local_irq_restore(flags);
        return status;
 }