linux-kernel - Re: [PATCH 5/6] scsi: mvsas: Delete mvs_tag

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Date:   Thu, 29 Sep 2022 11:18:26 +0900
From:   Damien Le Moal <damien.lemoal@...nsource.wdc.com>
To:     John Garry <john.garry@...wei.com>, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, jinpu.wang@...ud.ionos.com
Cc:     hare@...e.de, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linuxarm@...wei.com,
        ipylypiv@...gle.com, changyuanl@...gle.com, hch@....de
Subject: Re: [PATCH 5/6] scsi: mvsas: Delete mvs_tag_init()

On 9/28/22 21:27, John Garry wrote:
> All mvs_tag_init() does is zero the tag bitmap, but this is already done
> with the kzalloc() call to alloc the tags, so delete this unneeded
> function.
> 
> Signed-off-by: John Garry <john.garry@...wei.com>

Reviewed-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>

> ---
>  drivers/scsi/mvsas/mv_init.c | 2 --
>  drivers/scsi/mvsas/mv_sas.c  | 7 -------
>  drivers/scsi/mvsas/mv_sas.h  | 1 -
>  3 files changed, 10 deletions(-)
> 
> diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
> index 2fde496fff5f..c85fb812ad43 100644
> --- a/drivers/scsi/mvsas/mv_init.c
> +++ b/drivers/scsi/mvsas/mv_init.c
> @@ -286,8 +286,6 @@ static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
>  	}
>  	mvi->tags_num = slot_nr;
>  
> -	/* Initialize tags */
> -	mvs_tag_init(mvi);
>  	return 0;
>  err_out:
>  	return 1;
> diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
> index a6867dae0e7c..0810e6c930e1 100644
> --- a/drivers/scsi/mvsas/mv_sas.c
> +++ b/drivers/scsi/mvsas/mv_sas.c
> @@ -51,13 +51,6 @@ inline int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
>  	return 0;
>  }
>  
> -void mvs_tag_init(struct mvs_info *mvi)
> -{
> -	int i;
> -	for (i = 0; i < mvi->tags_num; ++i)
> -		mvs_tag_clear(mvi, i);
> -}
> -
>  static struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev)
>  {
>  	unsigned long i = 0, j = 0, hi = 0;
> diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
> index 509d8f32a04f..fe57665bdb50 100644
> --- a/drivers/scsi/mvsas/mv_sas.h
> +++ b/drivers/scsi/mvsas/mv_sas.h
> @@ -428,7 +428,6 @@ void mvs_tag_clear(struct mvs_info *mvi, u32 tag);
>  void mvs_tag_free(struct mvs_info *mvi, u32 tag);
>  void mvs_tag_set(struct mvs_info *mvi, unsigned int tag);
>  int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out);
> -void mvs_tag_init(struct mvs_info *mvi);
>  void mvs_iounmap(void __iomem *regs);
>  int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex);
>  void mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard);

-- 
Damien Le Moal
Western Digital Research