Re: [PATCH v5 2/2] platform/mellanox/mlxbf-bootctl: Add the ABI definitions

From: Greg Kroah-Hartman
Date: Fri May 17 2019 - 14:01:39 EST


On Fri, May 17, 2019 at 01:49:05PM -0400, Liming Sun wrote:
> This commit adds the ABI definitions exposed to userspace for
> the platform/mellanox/mlxbf-bootctl driver.
>
> Reviewed-by: Vadim Pasternak <vadimp@xxxxxxxxxxxx>
> Signed-off-by: Liming Sun <lsun@xxxxxxxxxxxx>
> ---
> .../ABI/testing/sysfs-platform-mellanox-bootctl | 58 ++++++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 59 insertions(+)
> create mode 100644 Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
>
> diff --git a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
> new file mode 100644
> index 0000000..19a14db
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
> @@ -0,0 +1,58 @@
> +What: /sys/bus/platform/drivers/mlxbf-bootctl/lifecycle_state
> +Date: May 2019
> +KernelVersion: 5.3
> +Contact: "Liming Sun <lsun@xxxxxxxxxxxx>"
> +Description:
> + The Life-cycle state of the SoC, which could be one of the
> + following values.
> + Production - Production state and can be updated to secure
> + GA Secured - Secure chip and not able to change state
> + GA Non-Secured - Non-Secure chip and not able to change state
> + RMA - Return Merchandise Authorization

A "driver" does not have a lifecycle state, a "device" does.

You are putting all of these attributes in the wrong place. Put them on
your device please, not the driver. driver-specific attributes are
_VERY_ rare, and only for things that can modify/show for all devices
attached to that driver.

thanks,

greg k-h