Re: [PATCH 1/3] driver core: faux: Suppress bind attributes

From: Jonathan Cameron
Date: Mon Jun 09 2025 - 06:20:12 EST


On Fri, 6 Jun 2025 20:32:26 -0700
Dan Williams <dan.j.williams@xxxxxxxxx> wrote:

> faux_device_create() is almost a suitable candidate to replace
> platform_driver_probe() if not for the fact that faux_device_create()
> supports dynamic attach/detach of the driver.
>
> Drop the bind attributes with the expectation that simple faux devices can
> always assume that the device is permanently bound at create, and only
> unbound at 'destroy'.
>
> The acpi-einj driver depends on static bind.
>
> Fixes: 6cb9441bfe8d ("ACPI: APEI: EINJ: Transition to the faux device interface")
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
> Cc: Danilo Krummrich <dakr@xxxxxxxxxx>
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Seems like a fair assumption that these should never be used so
we might as well hide the.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

> ---
> drivers/base/faux.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/base/faux.c b/drivers/base/faux.c
> index 9054d346bd7f..934da77ca48b 100644
> --- a/drivers/base/faux.c
> +++ b/drivers/base/faux.c
> @@ -86,6 +86,7 @@ static struct device_driver faux_driver = {
> .name = "faux_driver",
> .bus = &faux_bus_type,
> .probe_type = PROBE_FORCE_SYNCHRONOUS,
> + .suppress_bind_attrs = true,
> };
>
> static void faux_device_release(struct device *dev)