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Date:   Wed, 9 Sep 2020 17:55:45 -0700
From:   Jakub Kicinski <>
To:     Jacob Keller <>
Cc:, Jiri Pirko <>,
        Jonathan Corbet <>,
        Michael Chan <>,
        Bin Luo <>,
        Saeed Mahameed <>,
        Leon Romanovsky <>,
        Ido Schimmel <>,
        Danielle Ratson <>
Subject: Re: [net-next v4 2/5] devlink: convert flash_update to use params

On Wed,  9 Sep 2020 15:26:50 -0700 Jacob Keller wrote:
> The devlink core recently gained support for checking whether the driver
> supports a flash_update parameter, via `supported_flash_update_params`.
> However, parameters are specified as function arguments. Adding a new
> parameter still requires modifying the signature of the .flash_update
> callback in all drivers.
> Convert the .flash_update function to take a new `struct
> devlink_flash_update_params` instead. By using this structure, and the
> `supported_flash_update_params` bit field, a new parameter to
> flash_update can be added without requiring modification to existing
> drivers.
> As before, all parameters except file_name will require driver opt-in.
> Because file_name is a necessary field to for the flash_update to make
> sense, no "SUPPORTED" bitflag is provided and it is always considered
> valid. All future additional parameters will require a new bit in the
> supported_flash_update_params bitfield.

I keep thinking we should also make the core do the
request_firmware_direct(). What else is the driver gonna do with the file name..

But I don't want to drag your series out so:

Reviewed-by: Jakub Kicinski <>

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