[PATCH] s390: qdio: Convert timers to use timer_setup()

Kees Cook
2017-10-05T00:54:35Z

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
This requires commit 686fef928bba ("timer: Prepare to change timer
callback argument type") in v4.14-rc3, but should be otherwise
stand-alone.
---
drivers/s390/cio/qdio.h | 2 +-
drivers/s390/cio/qdio_main.c | 4 ++--
drivers/s390/cio/qdio_setup.c | 3 +--
3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 7e70f9298cc1..a99bbd21c793 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -392,7 +392,7 @@ int test_nonshared_ind(struct qdio_irq *);
/* prototypes for setup */
void qdio_inbound_processing(unsigned long data);
void qdio_outbound_processing(unsigned long data);
-void qdio_outbound_timer(unsigned long data);
+void qdio_outbound_timer(struct timer_list *t);
void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
struct irb *irb);
int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs,
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index a4ad39ba3873..86b8a474b9a2 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -894,9 +894,9 @@ void qdio_outbound_processing(unsigned long data)
__qdio_outbound_processing(q);
}

-void qdio_outbound_timer(unsigned long data)
+void qdio_outbound_timer(struct timer_list *t)
{
- struct qdio_q *q = (struct qdio_q *)data;
+ struct qdio_q *q = from_timer(q, t, o.out.timer);

qdio_tasklet_schedule(q);
}
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 48b3866a9ded..9ae1380cbc31 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -252,8 +252,7 @@ static void setup_queues(struct qdio_irq *irq_ptr,

tasklet_init(&q->tasklet, qdio_outbound_processing,
(unsigned long) q);
- setup_timer(&q->u.out.timer, (void(*)(unsigned long))
- &qdio_outbound_timer, (unsigned long)q);
+ timer_setup(&q->u.out.timer, qdio_outbound_timer, 0);
}
}

--
2.7.4

--
Kees Cook
Pixel Security