linux-kernel - Re: [PATCH v2 06/15] dmaengine: idxd: Add private_data to struct idxd

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Date:   Tue, 28 Mar 2023 11:13:18 -0500
From:   Tom Zanussi <tom.zanussi@...ux.intel.com>
To:     Dave Jiang <dave.jiang@...el.com>, herbert@...dor.apana.org.au,
        davem@...emloft.net, fenghua.yu@...el.com, vkoul@...nel.org
Cc:     tony.luck@...el.com, wajdi.k.feghali@...el.com,
        james.guilford@...el.com, kanchana.p.sridhar@...el.com,
        giovanni.cabiddu@...el.com, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, dmaengine@...r.kernel.org
Subject: Re: [PATCH v2 06/15] dmaengine: idxd: Add private_data to struct
 idxd_wq

On Tue, 2023-03-28 at 09:06 -0700, Dave Jiang wrote:
> 
> 
> On 3/28/23 8:35 AM, Tom Zanussi wrote:
> > Add a void * to idxd_wqs for user-defined context data.
> 
> I wonder if we should add accessor functions like get and set private
> data for the wq.
> > 

Yeah, makes sense, will do that in v3.

Tom

> > Signed-off-by: Tom Zanussi <tom.zanussi@...ux.intel.com>
> > ---
> >   drivers/dma/idxd/idxd.h | 2 ++
> >   1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
> > index 719f9f1662ad..e55213b5153e 100644
> > --- a/drivers/dma/idxd/idxd.h
> > +++ b/drivers/dma/idxd/idxd.h
> > @@ -216,6 +216,8 @@ struct idxd_wq {
> >         u32 max_batch_size;
> >   
> >         char driver_name[WQ_NAME_SIZE + 1];
> > +
> > +       void *private_data;
> >   };
> >   
> >   struct idxd_engine {