Re: [PATCH v2 3/5] drivers/acpi: Introduce Platform Firmware Runtime Update device driver

Greg Kroah-Hartman
2021-09-14T08:11:35Z

On Tue, Sep 14, 2021 at 03:58:41PM +0800, Chen Yu wrote:
> +enum start_action {
> + START_STAGE,
> + START_ACTIVATE,
> + START_STAGE_ACTIVATE,
> +};
> +
> +enum dsm_status {
> + DSM_SUCCEED,
> + DSM_FUNC_NOT_SUPPORT,
> + DSM_INVAL_INPUT,
> + DSM_HARDWARE_ERR,
> + DSM_RETRY_SUGGESTED,
> + DSM_UNKNOWN,
> + DSM_FUNC_SPEC_ERR,
> +};
> +
> +struct update_cap_info {
> + enum dsm_status status;
> + int update_cap;
> +
> + uuid_t code_type;
> + int fw_version;
> + int code_rt_version;
> +
> + uuid_t drv_type;
> + int drv_rt_version;
> + int drv_svn;
> +
> + uuid_t platform_id;
> + uuid_t oem_id;
> +
> + char oem_info[];

Please use valid types for structures that cross the user/kernel
boundry.

> +};
> +
> +struct com_buf_info {
> + enum dsm_status status;
> + enum dsm_status ext_status;
> + unsigned long addr_lo;
> + unsigned long addr_hi;
> + int buf_size;
> +};

Same here.

> +
> +struct updated_result {
> + enum dsm_status status;
> + enum dsm_status ext_status;
> + unsigned long low_auth_time;
> + unsigned long high_auth_time;
> + unsigned long low_exec_time;
> + unsigned long high_exec_time;

And same here.

And these are very odd structure names that you are adding to the
"global" namespace. Please make them have a prefix for your driver so
that people know what they belong to. "updated_result" is way too
generic.

thanks,

greg k-h