RE: [PATCH] mmc: block: Change MMC_IOC_MAX_BYTES

[Jeremy Kim <jh4u.kim@samsung.com>]

Hi,

Yes, right. "include/uapi/linux/mmc/ioctl.h"


-----Original Message-----
From: linux-mmc-owner@vger.kernel.org
[mailto:linux-mmc-owner@vger.kernel.org] On Behalf Of Jaehoon Chung
Sent: Tuesday, October 18, 2016 7:52 PM
To: Jeremy Kim; ulf.hansson@linaro.org; linux-mmc@vger.kernel.org
Subject: Re: [PATCH] mmc: block: Change MMC_IOC_MAX_BYTES

Hi,

On 10/18/2016 07:39 PM, Jeremy Kim wrote:
> 
> It is used for limitation of buffer size during IOCTL such as FFU. 
> However, eMMC FW size is bigger than (512L*256).
> (For instance, currently, Samsung eMMC FW size is over 300KB.) So, it 
> needs to increase to execute FFU.
> 
> 
> Signed-off-by: Jeonghan Kim <jh4u.kim@samsung.com>
> ---
>  ioctl.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Where is ioctl.h? "include/uapi/linux/mmc/ioctl.h"?

Best Regards,
Jaehoon Chung

> 
> diff --git a/ioctl.h b/ioctl.h
> index 7e385b8..700a551 100644
> --- a/ioctl.h
> +++ b/ioctl.h
> @@ -69,6 +69,6 @@ struct mmc_ioc_multi_cmd {
>   * is enforced per ioctl call.  For larger data transfers, use the normal
>   * block device operations.
>   */
> -#define MMC_IOC_MAX_BYTES  (512L * 256)
> +#define MMC_IOC_MAX_BYTES  (512L * 1024)
>  #define MMC_IOC_MAX_CMDS    255
>  #endif /* LINUX_MMC_IOCTL_H */
> --
> 1.9.1
> 
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> 
> 

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