linux-kernel - Re: [PATCH] mmc: mxcmmc: Fix missing parentheses and brace

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Date:   Fri, 13 Jul 2018 21:16:57 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Kees Cook <keescook@...omium.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Christoph Hellwig <hch@....de>, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: mxcmmc: Fix missing parentheses and brace

On 07/12/2018 12:59 PM, Kees Cook wrote:
> Looks like the adjusted syntax wasn't fully build tested. This fixes
> failures with powerpc builds:
> 
> drivers/mmc/host/mxcmmc.c: In function ‘mxcmci_swap_buffers’:
> drivers/mmc/host/mxcmmc.c:296:51: error: expected ‘)’ before ‘;’ token
>    void *buf = kmap_atomic(sg_page(sg) + sg->offset;
>                                                    ^
> drivers/mmc/host/mxcmmc.c:299:1: error: expected ‘,’ or ‘;’ before ‘}’ token
>  }
>  ^
> 
> Fixes: b189e7589f6d3 ("mmc: mxcmmc: handle highmem pages")
> Signed-off-by: Kees Cook <keescook@...omium.org>

Acked-by: Randy Dunlap <rdunlap@...radead.org>
Tested-by: Randy Dunlap <rdunlap@...radead.org>

Thanks.

> ---
>  drivers/mmc/host/mxcmmc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
> index 75f781c11e89..de4e6e5bf304 100644
> --- a/drivers/mmc/host/mxcmmc.c
> +++ b/drivers/mmc/host/mxcmmc.c
> @@ -293,9 +293,10 @@ static void mxcmci_swap_buffers(struct mmc_data *data)
>  	int i;
>  
>  	for_each_sg(data->sg, sg, data->sg_len, i) {
> -		void *buf = kmap_atomic(sg_page(sg) + sg->offset;
> +		void *buf = kmap_atomic(sg_page(sg) + sg->offset);
>  		buffer_swap32(buf, sg->length);
>  		kunmap_atomic(buf);
> +	}
>  }
>  #else
>  static inline void mxcmci_swap_buffers(struct mmc_data *data) {}
> 


-- 
~Randy