On Tue, 2019-08-13 at 13:10 +0300, Leon Romanovsky wrote:
> On Mon, Aug 12, 2019 at 10:59:07AM -0400, Doug Ledford wrote:
> > On Thu, 2019-08-08 at 15:34 +0000, Jason Gunthorpe wrote:
> > > On Thu, Aug 08, 2019 at 06:32:00PM +0300, Yishai Hadas wrote:
> > > > > > diff --git a/drivers/infiniband/hw/mlx5/devx.c
> > > > > > b/drivers/infiniband/hw/mlx5/devx.c
> > > > > > index 2d1b3d9609d9..af5bbb35c058 100644
> > > > > > +++ b/drivers/infiniband/hw/mlx5/devx.c
> > > > > > @@ -2644,12 +2644,13 @@ static int
> > > > > > devx_async_event_close(struct
> > > > > > inode *inode, struct file *filp)
> > > > > >   	struct devx_async_event_file *ev_file = filp-
> > > > > > > private_data;
> > > > > 
> > > > > This line is wrong, it should be
> > > > > 
> > > > >    	struct devx_async_event_file *ev_file =
> > > > > container_of(struct
> > > > >   	                   devx_async_event_file, filp-
> > > > > > private_data, uobj);
> > > > 
> > > > You suggested the below 2 lines instead of the above one line,
> > > > correct ? as
> > > > struct devx_async_event_file wraps uobj as its first field this
> > > > is
> > > > logically
> > > > equal, agree ?
> > > 
> > > Yes, it is wrong only in the use of the type system, the
> > > private_data
> > > void * should only ever be cast to a ib_uobject.
> > > 
> > > > struct ib_uobject *uobj = filp->private_data;
> > > 
> > > This could be done with a cast
> > > 
> > > > > It is also a bit redundant to store the mlx5_ib_dev in the
> > > > > devx_async_event_file as uobj->ucontext->dev is the same
> > > > > pointer.
> > > > > 
> > > > Post hot unplug uobj->ucontext might not be accessible, isn't it
> > > > ?
> > > > Current code should be fine for that.
> > > 
> > > That is the other kind of weird thing, all this destruction could
> > > be
> > > done on unplug..
> > > 
> > > > Are we fine to take this patch ?
> > > 
> > > Yes
> > 
> > Thanks, applied to for-rc.
> 
> Doug,
> 
> I don't see it in WIP branch, did you push it?

Sorry, I did not.  It's been pushed now, it should be visible within a
few moments.

-- 
Doug Ledford <dledford@redhat.com>
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