linux-kernel - Re: [PATCH v1] drivers/spi-dw-core.c : remove redundant function spi_controller_set

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Message-ID: <20230309121019.oewvje4lq3ttbrrr@mobilestation>
Date:   Thu, 9 Mar 2023 15:10:19 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Lizhe <sensor1010@....com>
Cc:     broonie@...nel.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] drivers/spi-dw-core.c : remove redundant function
 spi_controller_set_devdata

On Wed, Mar 08, 2023 at 10:55:51PM +0800, Lizhe wrote:
> in spi_alloc_master() already exists master_controller_set_devdata()
> called, add the struct dw_spi is passed to the spi_alloc_master() as
> the second parameter.

Are you sure that the suggested change does what you think it does?

-Serge(y)

> 
> Signed-off-by: Lizhe <sensor1010@....com>
> ---
>  drivers/spi/spi-dw-core.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c
> index c3bfb6c84cab..ad776c7eb66c 100644
> --- a/drivers/spi/spi-dw-core.c
> +++ b/drivers/spi/spi-dw-core.c
> @@ -892,7 +892,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
>  	if (!dws)
>  		return -EINVAL;
>  
> -	master = spi_alloc_master(dev, 0);
> +	master = spi_alloc_master(dev, sizeof(*dws));
>  	if (!master)
>  		return -ENOMEM;
>  
> @@ -901,8 +901,6 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
>  	dws->master = master;
>  	dws->dma_addr = (dma_addr_t)(dws->paddr + DW_SPI_DR);
>  
> -	spi_controller_set_devdata(master, dws);
> -
>  	/* Basic HW init */
>  	dw_spi_hw_init(dev, dws);
>  
> -- 
> 2.34.1
>