Re: [PATCH 1/4] vmbus: Improve a size determination in vmbus_device_create()

From: Greg KH
Date: Thu May 11 2017 - 13:48:08 EST


On Thu, May 11, 2017 at 09:30:56AM -0700, Stephen Hemminger wrote:
> On Thu, 11 May 2017 18:15:46 +0200
> SF Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
> > From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> > Date: Thu, 11 May 2017 17:30:10 +0200
> >
> > Replace the specification of a data structure by a pointer dereference
> > as the parameter for the operator "sizeof" to make the corresponding size
> > determination a bit safer according to the Linux coding style convention.
> >
> > Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/hv/vmbus_drv.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
> > index 0087b49095eb..6802d74f162c 100644
> > --- a/drivers/hv/vmbus_drv.c
> > +++ b/drivers/hv/vmbus_drv.c
> > @@ -1145,5 +1145,5 @@ struct hv_device *vmbus_device_create(const uuid_le *type,
> > {
> > struct hv_device *child_device_obj;
> >
> > - child_device_obj = kzalloc(sizeof(struct hv_device), GFP_KERNEL);
> > + child_device_obj = kzalloc(sizeof(*child_device_obj), GFP_KERNEL);
> > if (!child_device_obj) {
>
> This looks fine.
>
> Acked-by: Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx>

Note, I have a blacklist filter for this person for a reason, I, and
many other maintainers, just ignore them for good reason...

greg k-h