Re: [PATCH v2 4/9] ufs: core: Call ufshcd_add_scsi_host() later

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On Thu, Aug 22, 2024 at 02:36:05PM -0700, Bart Van Assche wrote:
> Call ufshcd_add_scsi_host() after host controller initialization has
> completed. This is possible because no code between the old and new
> ufshcd_add_scsi_host() call site depends on the scsi_add_host() call.
> 
> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>

- Mani

> ---
>  drivers/ufs/core/ufshcd.c | 16 +++++-----------
>  1 file changed, 5 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index dcc417d7e19c..b513ef46d848 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -10585,10 +10585,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
>  		hba->is_irq_enabled = true;
>  	}
>  
> -	err = ufshcd_add_scsi_host(hba);
> -	if (err)
> -		goto out_disable;
> -
>  	/* Reset the attached device */
>  	ufshcd_device_reset(hba);
>  
> @@ -10600,7 +10596,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
>  		dev_err(hba->dev, "Host controller enable failed\n");
>  		ufshcd_print_evt_hist(hba);
>  		ufshcd_print_host_state(hba);
> -		goto free_tmf_queue;
> +		goto out_disable;
>  	}
>  
>  	/*
> @@ -10635,6 +10631,10 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
>  	 */
>  	ufshcd_set_ufs_dev_active(hba);
>  
> +	err = ufshcd_add_scsi_host(hba);
> +	if (err)
> +		goto out_disable;
> +
>  	async_schedule(ufshcd_async_scan, hba);
>  	ufs_sysfs_add_nodes(hba->dev);
>  
> @@ -10642,12 +10642,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
>  	ufshcd_pm_qos_init(hba);
>  	return 0;
>  
> -free_tmf_queue:
> -	blk_mq_destroy_queue(hba->tmf_queue);
> -	blk_put_queue(hba->tmf_queue);
> -	blk_mq_free_tag_set(&hba->tmf_tag_set);
> -	if (hba->scsi_host_added)
> -		scsi_remove_host(hba->host);
>  out_disable:
>  	hba->is_irq_enabled = false;
>  	ufshcd_hba_exit(hba);

-- 
மணிவண்ணன் சதாசிவம்




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