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Message-ID: <20171005005302.GA23696@beast>
Date: Wed, 4 Oct 2017 17:53:02 -0700
From: Kees Cook <keescook@...omium.org>
To: linux-kernel@...r.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Sean Young <sean@...s.org>,
Geliang Tang <geliangtang@...il.com>,
Hans Verkuil <hans.verkuil@...co.com>,
linux-media@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH] media: saa7134: Convert timers to use timer_setup()
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: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: Sean Young <sean@...s.org>
Cc: Geliang Tang <geliangtang@...il.com>
Cc: Hans Verkuil <hans.verkuil@...co.com>
Cc: linux-media@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Kees Cook <keescook@...omium.org>
---
This requires commit 686fef928bba ("timer: Prepare to change timer
callback argument type") in v4.14-rc3, but should be otherwise
stand-alone.
---
drivers/media/pci/saa7134/saa7134-core.c | 6 +++---
drivers/media/pci/saa7134/saa7134-input.c | 9 ++++-----
drivers/media/pci/saa7134/saa7134-ts.c | 3 +--
drivers/media/pci/saa7134/saa7134-vbi.c | 3 +--
drivers/media/pci/saa7134/saa7134-video.c | 3 +--
drivers/media/pci/saa7134/saa7134.h | 2 +-
6 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c
index 7976c5a12ca8..9e76de2411ae 100644
--- a/drivers/media/pci/saa7134/saa7134-core.c
+++ b/drivers/media/pci/saa7134/saa7134-core.c
@@ -338,9 +338,9 @@ void saa7134_buffer_next(struct saa7134_dev *dev,
}
}
-void saa7134_buffer_timeout(unsigned long data)
+void saa7134_buffer_timeout(struct timer_list *t)
{
- struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue *)data;
+ struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
struct saa7134_dev *dev = q->dev;
unsigned long flags;
@@ -378,7 +378,7 @@ void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
}
}
spin_unlock_irqrestore(&dev->slock, flags);
- saa7134_buffer_timeout((unsigned long)q); /* also calls del_timer(&q->timeout) */
+ saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
}
EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
diff --git a/drivers/media/pci/saa7134/saa7134-input.c b/drivers/media/pci/saa7134/saa7134-input.c
index 9337e4615519..2d5abeddc079 100644
--- a/drivers/media/pci/saa7134/saa7134-input.c
+++ b/drivers/media/pci/saa7134/saa7134-input.c
@@ -447,10 +447,10 @@ void saa7134_input_irq(struct saa7134_dev *dev)
}
}
-static void saa7134_input_timer(unsigned long data)
+static void saa7134_input_timer(struct timer_list *t)
{
- struct saa7134_dev *dev = (struct saa7134_dev *)data;
- struct saa7134_card_ir *ir = dev->remote;
+ struct saa7134_card_ir *ir = from_timer(ir, t, timer);
+ struct saa7134_dev *dev = ir->dev->priv;
build_key(dev);
mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
@@ -507,8 +507,7 @@ static int __saa7134_ir_start(void *priv)
ir->running = true;
if (ir->polling) {
- setup_timer(&ir->timer, saa7134_input_timer,
- (unsigned long)dev);
+ timer_setup(&ir->timer, saa7134_input_timer, 0);
ir->timer.expires = jiffies + HZ;
add_timer(&ir->timer);
}
diff --git a/drivers/media/pci/saa7134/saa7134-ts.c b/drivers/media/pci/saa7134/saa7134-ts.c
index 7414878af9e0..2be703617e29 100644
--- a/drivers/media/pci/saa7134/saa7134-ts.c
+++ b/drivers/media/pci/saa7134/saa7134-ts.c
@@ -223,8 +223,7 @@ int saa7134_ts_init1(struct saa7134_dev *dev)
dev->ts.nr_packets = ts_nr_packets;
INIT_LIST_HEAD(&dev->ts_q.queue);
- setup_timer(&dev->ts_q.timeout, saa7134_buffer_timeout,
- (unsigned long)(&dev->ts_q));
+ timer_setup(&dev->ts_q.timeout, saa7134_buffer_timeout, 0);
dev->ts_q.dev = dev;
dev->ts_q.need_two = 1;
dev->ts_started = 0;
diff --git a/drivers/media/pci/saa7134/saa7134-vbi.c b/drivers/media/pci/saa7134/saa7134-vbi.c
index bcad9b2d9bb3..af494c6147f1 100644
--- a/drivers/media/pci/saa7134/saa7134-vbi.c
+++ b/drivers/media/pci/saa7134/saa7134-vbi.c
@@ -181,8 +181,7 @@ struct vb2_ops saa7134_vbi_qops = {
int saa7134_vbi_init1(struct saa7134_dev *dev)
{
INIT_LIST_HEAD(&dev->vbi_q.queue);
- setup_timer(&dev->vbi_q.timeout, saa7134_buffer_timeout,
- (unsigned long)(&dev->vbi_q));
+ timer_setup(&dev->vbi_q.timeout, saa7134_buffer_timeout, 0);
dev->vbi_q.dev = dev;
if (vbibufs < 2)
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 51d42bbf969e..82d2a24644e4 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -2145,8 +2145,7 @@ int saa7134_video_init1(struct saa7134_dev *dev)
dev->automute = 0;
INIT_LIST_HEAD(&dev->video_q.queue);
- setup_timer(&dev->video_q.timeout, saa7134_buffer_timeout,
- (unsigned long)(&dev->video_q));
+ timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
dev->video_q.dev = dev;
dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
dev->width = 720;
diff --git a/drivers/media/pci/saa7134/saa7134.h b/drivers/media/pci/saa7134/saa7134.h
index 816b5282d671..70131b93da3d 100644
--- a/drivers/media/pci/saa7134/saa7134.h
+++ b/drivers/media/pci/saa7134/saa7134.h
@@ -773,7 +773,7 @@ int saa7134_buffer_queue(struct saa7134_dev *dev, struct saa7134_dmaqueue *q,
void saa7134_buffer_finish(struct saa7134_dev *dev, struct saa7134_dmaqueue *q,
unsigned int state);
void saa7134_buffer_next(struct saa7134_dev *dev, struct saa7134_dmaqueue *q);
-void saa7134_buffer_timeout(unsigned long data);
+void saa7134_buffer_timeout(struct timer_list *t);
void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q);
int saa7134_set_dmabits(struct saa7134_dev *dev);
--
2.7.4
--
Kees Cook
Pixel Security
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