linux-kernel - Re: [PATCH v1] scsi: ufs: delete redundant function ufshcd_def_desc

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Date:   Wed, 30 Oct 2019 20:43:29 +0800
From:   cang@...eaurora.org
To:     "Bean Huo (beanhuo)" <beanhuo@...ron.com>
Cc:     'Alim Akhtar' <alim.akhtar@...sung.com>,
        'Avri Altman' <avri.altman@....com>,
        'Pedro Sousa' <pedrom.sousa@...opsys.com>,
        "'Martin K. Petersen'" <martin.petersen@...cle.com>,
        "'James E.J. Bottomley'" <jejb@...ux.ibm.com>,
        'Evan Green' <evgreen@...omium.org>,
        'Stanley Chu' <stanley.chu@...iatek.com>,
        "'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
        "'linux-scsi@...r.kernel.org'" <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH v1] scsi: ufs: delete redundant function
 ufshcd_def_desc_sizes()

On 2019-10-29 22:22, Bean Huo (beanhuo) wrote:
> From: Bean Huo <beanhuo@...ron.com>
> 
> There is no need to call ufshcd_def_desc_sizes() in ufshcd_init(),
> since descriptor lengths will be checked and initialized later in
> ufshcd_init_desc_sizes().
> 
> Fixes: a4b0e8a4e92b1b(scsi: ufs: Factor out ufshcd_read_desc_param)
> Signed-off-by: Bean Huo <beanhuo@...ron.com>
> ---
>  drivers/scsi/ufs/ufshcd.c | 15 +--------------
>  1 file changed, 1 insertion(+), 14 deletions(-)
> 
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index c28c144d9b4a..21a7244882a1 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -6778,23 +6778,13 @@ static void ufshcd_init_desc_sizes(struct 
> ufs_hba *hba)
>  		&hba->desc_size.geom_desc);
>  	if (err)
>  		hba->desc_size.geom_desc = QUERY_DESC_GEOMETRY_DEF_SIZE;
> +
>  	err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_HEALTH, 0,
>  		&hba->desc_size.hlth_desc);
>  	if (err)
>  		hba->desc_size.hlth_desc = QUERY_DESC_HEALTH_DEF_SIZE;
>  }
> 
> -static void ufshcd_def_desc_sizes(struct ufs_hba *hba)
> -{
> -	hba->desc_size.dev_desc = QUERY_DESC_DEVICE_DEF_SIZE;
> -	hba->desc_size.pwr_desc = QUERY_DESC_POWER_DEF_SIZE;
> -	hba->desc_size.interc_desc = QUERY_DESC_INTERCONNECT_DEF_SIZE;
> -	hba->desc_size.conf_desc = QUERY_DESC_CONFIGURATION_DEF_SIZE;
> -	hba->desc_size.unit_desc = QUERY_DESC_UNIT_DEF_SIZE;
> -	hba->desc_size.geom_desc = QUERY_DESC_GEOMETRY_DEF_SIZE;
> -	hba->desc_size.hlth_desc = QUERY_DESC_HEALTH_DEF_SIZE;
> -}
> -
>  static struct ufs_ref_clk ufs_ref_clk_freqs[] = {
>  	{19200000, REF_CLK_FREQ_19_2_MHZ},
>  	{26000000, REF_CLK_FREQ_26_MHZ},
> @@ -8283,9 +8273,6 @@ int ufshcd_init(struct ufs_hba *hba, void
> __iomem *mmio_base, unsigned int irq)
>  	hba->mmio_base = mmio_base;
>  	hba->irq = irq;
> 
> -	/* Set descriptor lengths to specification defaults */
> -	ufshcd_def_desc_sizes(hba);
> -
>  	err = ufshcd_hba_init(hba);
>  	if (err)
>  		goto out_error;

Reviewed-by: Can Guo <cang@...eaurora.org>

Best regards
Can Guo