@@ -24,8 +24,6 @@
#define TCORB 6
#define _8TCNT 8
-#define FLAG_SKIPEVENT (1 << 1)
-#define FLAG_IRQCONTEXT (1 << 2)
#define FLAG_STARTED (1 << 3)
#define SCALE 64
@@ -67,14 +65,13 @@ static irqreturn_t timer8_interrupt(int irq, void *dev_id)
ctrl_outb(ctrl_inb(p->mapbase + _8TCSR) & ~0x40,
p->mapbase + _8TCSR);
- p->flags |= FLAG_IRQCONTEXT;
+
ctrl_outw(p->tcora, p->mapbase + TCORA);
- if (!(p->flags & FLAG_SKIPEVENT)) {
- if (clockevent_state_oneshot(&p->ced))
- ctrl_outw(0x0000, p->mapbase + _8TCR);
- p->ced.event_handler(&p->ced);
- }
- p->flags &= ~(FLAG_SKIPEVENT | FLAG_IRQCONTEXT);
+
+ if (clockevent_state_oneshot(&p->ced))
+ ctrl_outw(0x0000, p->mapbase + _8TCR);
+
+ p->ced.event_handler(&p->ced);
return IRQ_HANDLED;
}
The current code assumes the interrupt function is re-entrant. That is not correct. An interrupt handler is never invoked concurrently. The interrupt line is masked on all processors. Remove the chewing flags in the code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> --- drivers/clocksource/h8300_timer8.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/