Hi,
On 10/19/2016 08:31 PM, Jeremy Kim wrote:
>>From 27d46f5697434542ad9cafbc6a9630dc14915f91 Mon Sep 17 00:00:00 2001
> From: Jeonghan Kim <jh4u.kim@xxxxxxxxxxx>
> Date: Wed, 19 Oct 2016 19:48:02 +0900
> Subject: [PATCH] mmc: block: Change MMC_IOC_MAX_BYTES
>
> 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@xxxxxxxxxxx>
Looks good to me.
Acked-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Best Regards,
Jaehoon Chung
> ---
> include/uapi/linux/mmc/ioctl.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h
> index 7e385b8..700a551 100644
> --- a/include/uapi/linux/mmc/ioctl.h
> +++ b/include/uapi/linux/mmc/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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