linux-kernel - Re: [PATCH v4 06/15] dmaengine: idxd: Add wq private data accessors

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Message-ID: <2618f557-01a5-f76b-ad09-6eb0871cdf00@intel.com>
Date:   Mon, 8 May 2023 13:43:49 -0700
From:   Dave Jiang <dave.jiang@...el.com>
To:     Tom Zanussi <tom.zanussi@...ux.intel.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 v4 06/15] dmaengine: idxd: Add wq private data accessors



On 5/8/23 1:07 PM, Tom Zanussi wrote:
> Add the accessors set_idxd_wq_private() and idxd_wq_private() allowing
> users to set and retrieve a private void * associated with an idxd_wq.
> 
> The private data is stored in the idxd_dev.conf_dev associated with
> each idxd_wq.
> 
> Signed-off-by: Tom Zanussi <tom.zanussi@...ux.intel.com>
> ---
>   drivers/dma/idxd/idxd.h | 10 ++++++++++
>   1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
> index 193552dea224..71cd4ca7d27a 100644
> --- a/drivers/dma/idxd/idxd.h
> +++ b/drivers/dma/idxd/idxd.h
> @@ -552,6 +552,16 @@ static inline int idxd_wq_refcount(struct idxd_wq *wq)
>   	return wq->client_count;
>   };
>   
> +static inline void set_idxd_wq_private(struct idxd_wq *wq, void *private)

I would go with the same kernel naming convention:

idxd_wq_set_private() and idxd_wq_get_private()?
> +{
> +	dev_set_drvdata(wq_confdev(wq), private);
> +}
> +
> +static inline void *idxd_wq_private(struct idxd_wq *wq)
> +{
> +	return dev_get_drvdata(wq_confdev(wq));
> +}
> +
>   /*
>    * Intel IAA does not support batch processing.
>    * The max batch size of device, max batch size of wq and