Re: [PATCH 2/3] driver core: provide new device flag - DEV_FLAG_SWNODE_NOTIFIER

[Bartosz Golaszewski]

On Thu, 15 Oct 2026 16:46:23 +0200, Bartosz Golaszewski
<bartosz.golaszewski@xxxxxxxxxxxxxxxx> said:
> Extend the set of device flags with one that indicates to driver core
> that this device was passed as argument to software_node_notify() and
> took a reference to this device's software node.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
> ---
>  include/linux/device.h | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/include/linux/device.h b/include/linux/device.h
> index c8de370d877f978dd4a160f0094812a1d8441078..b8f12d053cd704b12febc41035aaa44afe286351 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -599,6 +599,10 @@ struct device_physical_location {
>   *		ancestor device.
>   * @DEV_FLAG_OFFLINE_DISABLED: If set, the device is permanently online.
>   * @DEV_FLAG_OFFLINE: Set after successful invocation of bus type's .offline().
> + * @DEV_FLAG_SWNODE_NOTIFIER: Set if software_node_notify() was called for this

Ugh, sashiko pointed out a typo in the doc. I'll wait with resending until I
get some reviews on this.

Bart

> + *		device and took a reference to the device's software node.
> + *		Indicates to software_node_notify_remove() that it should drop
> + *		the reference.
>   * @DEV_FLAG_COUNT: Number of defined struct_device_flags.
>   */
>  enum struct_device_flags {
> @@ -612,6 +616,7 @@ enum struct_device_flags {
>  	DEV_FLAG_OF_NODE_REUSED = 7,
>  	DEV_FLAG_OFFLINE_DISABLED = 8,
>  	DEV_FLAG_OFFLINE = 9,
> +	DEV_FLAG_SWNODE_NOTIFIED = 10,
>
>  	DEV_FLAG_COUNT
>  };
> @@ -833,6 +838,7 @@ __create_dev_flag_accessors(dma_coherent, DEV_FLAG_DMA_COHERENT);
>  __create_dev_flag_accessors(of_node_reused, DEV_FLAG_OF_NODE_REUSED);
>  __create_dev_flag_accessors(offline_disabled, DEV_FLAG_OFFLINE_DISABLED);
>  __create_dev_flag_accessors(offline, DEV_FLAG_OFFLINE);
> +__create_dev_flag_accessors(swnode_notified, DEV_FLAG_SWNODE_NOTIFIED);
>
>  #undef __create_dev_flag_accessors
>
>
> --
> 2.47.3
>
>