On Tue, Mar 12, 2019 at 09:31:01AM -0700, Patrick Venture wrote:
> +     phys_addr_t mem_base;

Is this really a 32bit value?

Your ioctl thinks it is:

> +struct aspeed_p2a_ctrl_mapping {
> +     __u32 addr;

Does this driver not work on a 64bit kernel?

> +     __u32 length;
> +     __u32 flags;
> +};

addr really should be __u32 here so you don't have to mess with 32/64
bit user/kernel issues, right?

thanks,

greg k-h

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