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Message-ID: <20171005004738.GA22870@beast>
Date: Wed, 4 Oct 2017 17:47:38 -0700
From: Kees Cook <keescook@...omium.org>
To: linux-kernel@...r.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Cox <alan@...ux.intel.com>,
Daeseok Youn <daeseok.youn@...il.com>,
Arnd Bergmann <arnd@...db.de>, linux-media@...r.kernel.org,
devel@...verdev.osuosl.org, Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH] staging/atomisp: 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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Alan Cox <alan@...ux.intel.com>
Cc: Daeseok Youn <daeseok.youn@...il.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: linux-media@...r.kernel.org
Cc: devel@...verdev.osuosl.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/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c | 13 ++++---------
drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h | 6 +-----
.../media/atomisp/pci/atomisp2/atomisp_compat_css20.c | 2 +-
drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c | 15 +++++----------
4 files changed, 11 insertions(+), 25 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
index f48bf451c1f5..6a38cd64b2a1 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
@@ -1660,20 +1660,15 @@ void atomisp_css_flush(struct atomisp_device *isp)
dev_dbg(isp->dev, "atomisp css flush done\n");
}
-#ifndef ISP2401
-void atomisp_wdt(unsigned long isp_addr)
-#else
-void atomisp_wdt(unsigned long pipe_addr)
-#endif
+void atomisp_wdt(struct timer_list *t)
{
#ifndef ISP2401
- struct atomisp_device *isp = (struct atomisp_device *)isp_addr;
+ struct atomisp_sub_device *asd = from_timer(asd, t, wdt);
#else
- struct atomisp_video_pipe *pipe =
- (struct atomisp_video_pipe *)pipe_addr;
+ struct atomisp_video_pipe *pipe = from_timer(pipe, t, wdt);
struct atomisp_sub_device *asd = pipe->asd;
- struct atomisp_device *isp = asd->isp;
#endif
+ struct atomisp_device *isp = asd->isp;
#ifdef ISP2401
atomic_inc(&pipe->wdt_count);
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h
index 31ba4e613d13..4bb83864da2e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h
@@ -85,11 +85,7 @@ static inline void __iomem *atomisp_get_io_virt_addr(unsigned int address)
void atomisp_msi_irq_init(struct atomisp_device *isp, struct pci_dev *dev);
void atomisp_msi_irq_uninit(struct atomisp_device *isp, struct pci_dev *dev);
void atomisp_wdt_work(struct work_struct *work);
-#ifndef ISP2401
-void atomisp_wdt(unsigned long isp_addr);
-#else
-void atomisp_wdt(unsigned long pipe_addr);
-#endif
+void atomisp_wdt(struct timer_list *t);
void atomisp_setup_flash(struct atomisp_sub_device *asd);
irqreturn_t atomisp_isr(int irq, void *dev);
irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr);
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
index 05897b747349..0b907474e024 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
@@ -4515,7 +4515,7 @@ int atomisp_css_isr_thread(struct atomisp_device *isp,
for (i = 0; i < isp->num_of_streams; i++)
atomisp_wdt_stop(&isp->asd[i], 0);
#ifndef ISP2401
- atomisp_wdt((unsigned long)isp);
+ atomisp_wdt(&isp->asd[0].wdt);
#else
queue_work(isp->wdt_work_queue, &isp->wdt_work);
#endif
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
index 663aa916e3ca..76dc779f32c3 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
@@ -1155,17 +1155,12 @@ static int init_atomisp_wdts(struct atomisp_device *isp)
struct atomisp_sub_device *asd = &isp->asd[i];
asd = &isp->asd[i];
#ifndef ISP2401
- setup_timer(&asd->wdt, atomisp_wdt, (unsigned long)isp);
+ timer_setup(&asd->wdt, atomisp_wdt, 0);
#else
- setup_timer(&asd->video_out_capture.wdt,
- atomisp_wdt, (unsigned long)&asd->video_out_capture);
- setup_timer(&asd->video_out_preview.wdt,
- atomisp_wdt, (unsigned long)&asd->video_out_preview);
- setup_timer(&asd->video_out_vf.wdt,
- atomisp_wdt, (unsigned long)&asd->video_out_vf);
- setup_timer(&asd->video_out_video_capture.wdt,
- atomisp_wdt,
- (unsigned long)&asd->video_out_video_capture);
+ timer_setup(&asd->video_out_capture.wdt, atomisp_wdt, 0);
+ timer_setup(&asd->video_out_preview.wdt, atomisp_wdt, 0);
+ timer_setup(&asd->video_out_vf.wdt, atomisp_wdt, 0);
+ timer_setup(&asd->video_out_video_capture.wdt, atomisp_wdt, 0);
#endif
}
return 0;
--
2.7.4
--
Kees Cook
Pixel Security
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