# Re: \[PATCH 1/6\] mmc: JZ4740: remove the flush\_kernel\_dcache\_page call in jz4740\_mmc\_read\_data

- From: Paul Cercueil \<paul@crapouillou.net\>
- Date: 2021-07-19 09:30:58 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2021/07/1448925
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/07/1439128/t.md

```text
Hi Christoph,

Le lun., juil. 12 2021 at 08:09:23 +0200, Christoph Hellwig [ref] a écrit :
> MIPS now implements flush_kernel_dcache_page (as an alias to
> flush_dcache_page).
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Tested-by: Paul Cercueil <paul@crapouillou.net>

Cheers,
-Paul

> ---
>  drivers/mmc/host/jz4740_mmc.c | 4 ----
>  1 file changed, 4 deletions(-)
>
> diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
> index 0db17bcc9c16..aa2240c83510 100644
> --- a/drivers/mmc/host/jz4740_mmc.c
> +++ b/drivers/mmc/host/jz4740_mmc.c
> @@ -578,10 +578,6 @@ static bool jz4740_mmc_read_data(struct jz4740_mmc_host *host,
>  			}
>  		}
>  		data->bytes_xfered += miter->length;
> -
> -		/* This can go away once MIPS implements
> -		 * flush_kernel_dcache_page */
> -		flush_dcache_page(miter->page);
>  	}
>  	sg_miter_stop(miter);
>
> --
> 2.30.2
>



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```