On Fri, Oct 27, 2017 at 11:24:22AM -0500, Bin Liu wrote:
> Hi,
>
> On Tue, Oct 24, 2017 at 03:08:35AM -0700, Kees Cook wrote:
> > 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.
> >
> > Instead of a per-device static timer variable, a spare timer "dev_timer"
> > is added to the musb structure for devices to use for their per-device
> > timer.
> >
> > Cc: Bin Liu <b-liu@xxxxxx>
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Cc: linux-usb@xxxxxxxxxxxxxxx
> > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> > ---
> > drivers/usb/musb/am35x.c | 24 +++++++++++-------------
> > drivers/usb/musb/blackfin.c | 13 ++++++-------
> > drivers/usb/musb/blackfin.h | 2 --
> > drivers/usb/musb/da8xx.c | 26 ++++++++++++--------------
> > drivers/usb/musb/davinci.c | 20 +++++++++-----------
> > drivers/usb/musb/musb_core.c | 6 +++---
> > drivers/usb/musb/musb_core.h | 1 +
> > drivers/usb/musb/musb_dsps.c | 7 ++++---
> > drivers/usb/musb/tusb6010.c | 20 +++++++++-----------
> > 9 files changed, 55 insertions(+), 64 deletions(-)
>
> [snip]
>
> > diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
> > index 20f4614178d9..e8573975743d 100644
> > --- a/drivers/usb/musb/musb_core.h
> > +++ b/drivers/usb/musb/musb_core.h
> > @@ -345,6 +345,7 @@ struct musb {
> > struct list_head pending_list; /* pending work list */
> >
> > struct timer_list otg_timer;
> > + struct timer_list dev_timer;
>
> Now since dev_timer is added in struct musb for glue drivers,
>
> > struct notifier_block nb;
> >
> > struct dma_controller *dma_controller;
> > diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
> > index f6b526606ad1..e3d0e626a5d6 100644
> > --- a/drivers/usb/musb/musb_dsps.c
> > +++ b/drivers/usb/musb/musb_dsps.c
> > @@ -282,9 +282,10 @@ static int dsps_check_status(struct musb *musb, void *unused)
> > return 0;
> > }
> >
> > -static void otg_timer(unsigned long _musb)
> > +static void otg_timer(struct timer_list *t)
> > {
> > - struct musb *musb = (void *)_musb;
> > + struct dsps_glue *glue = from_timer(glue, t, timer);
> > + struct musb *musb = platform_get_drvdata(glue->musb);
> > struct device *dev = musb->controller;
> > unsigned long flags;
> > int err;
> > @@ -480,7 +481,7 @@ static int dsps_musb_init(struct musb *musb)
> > }
> > }
> >
> > - setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
> > + timer_setup(&glue->timer, otg_timer, 0);
>
> this glue->timer is duplicate. It can be removed and use musb->dev_timer
> instead as other glue drivers do.
I do not understand your review comments at all. Can you do the fixup
here to use timer_setup for the musb timer code?
thanks,
greg k-h
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