linux-kernel - Re: [PATCH -next] dmaengine: idxd: Remove unused declarations

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Message-ID: <2af57964-9c63-b67b-5cfb-0191cee1ef14@intel.com>
Date:   Mon, 14 Aug 2023 08:31:49 -0700
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     Yue Haibing <yuehaibing@...wei.com>, <dave.jiang@...el.com>,
        <vkoul@...nel.org>
CC:     <dmaengine@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] dmaengine: idxd: Remove unused declarations

Hi, Haibing,

On 8/14/23 06:59, Yue Haibing wrote:
> Commit c05257b5600b ("dmanegine: idxd: open code the dsa_drv registration")
> removed idxd_{un}register_driver() but not the declarations.

Is "removed idxd_{un}register_driver() definitions" better?

> Commit 034b3290ba25 ("dmaengine: idxd: create idxd_device sub-driver")
> declared idxd_{un}register_idxd_drv() but never implemented.

s/implemented/implemented it/

> Commit 8f47d1a5e545 ("dmaengine: idxd: connect idxd to dmaengine subsystem")
> declared idxd_parse_completion_status() but never implemented.

s/implemented/implemented it/

> 
> Signed-off-by: Yue Haibing <yuehaibing@...wei.com>
> ---
>   drivers/dma/idxd/idxd.h | 5 -----
>   1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
> index 5428a2e1b1ec..05a83359def9 100644
> --- a/drivers/dma/idxd/idxd.h
> +++ b/drivers/dma/idxd/idxd.h
> @@ -651,8 +651,6 @@ int idxd_register_bus_type(void);
>   void idxd_unregister_bus_type(void);
>   int idxd_register_devices(struct idxd_device *idxd);
>   void idxd_unregister_devices(struct idxd_device *idxd);
> -int idxd_register_driver(void);
> -void idxd_unregister_driver(void);
>   void idxd_wqs_quiesce(struct idxd_device *idxd);
>   bool idxd_queue_int_handle_resubmit(struct idxd_desc *desc);
>   void multi_u64_to_bmap(unsigned long *bmap, u64 *val, int count);
> @@ -664,8 +662,6 @@ void idxd_mask_error_interrupts(struct idxd_device *idxd);
>   void idxd_unmask_error_interrupts(struct idxd_device *idxd);
>   
>   /* device control */
> -int idxd_register_idxd_drv(void);
> -void idxd_unregister_idxd_drv(void);
>   int idxd_device_drv_probe(struct idxd_dev *idxd_dev);
>   void idxd_device_drv_remove(struct idxd_dev *idxd_dev);
>   int drv_enable_wq(struct idxd_wq *wq);
> @@ -710,7 +706,6 @@ int idxd_enqcmds(struct idxd_wq *wq, void __iomem *portal, const void *desc);
>   /* dmaengine */
>   int idxd_register_dma_device(struct idxd_device *idxd);
>   void idxd_unregister_dma_device(struct idxd_device *idxd);
> -void idxd_parse_completion_status(u8 status, enum dmaengine_tx_result *res);
>   void idxd_dma_complete_txd(struct idxd_desc *desc,
>   			   enum idxd_complete_type comp_type, bool free_desc);
>   

Other than the minor commit message changes, the code looks good to me.

Thanks.

-Fenghua