linux-kernel - Re: [PATCH] firmware: add firmware to new device's devres list for second time cache

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Message-ID: <20171004072443.GA12006@kroah.com>
Date:   Wed, 4 Oct 2017 09:24:43 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     mcgrof@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] firmware: add firmware to new device's devres list for
 second time cache

On Tue, Aug 22, 2017 at 03:52:46PM +0800, Kai-Heng Feng wrote:
> Currently, firmware will only be chached if assign_firmware_buf() gets
> called.
> 
> When a device loses its power or a USB device gets plugged to another
> port under suspend, request_firmware() can still find cached firmware,
> but firmware name no longer associates with the new device's devres.
> So next time the system suspend, those firmware won't be cached.
> 
> Hence, we should add the firmware name to the devres when the firmware
> is found in cache, to make the firmware cacheable next time.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> ---
>  drivers/base/firmware_class.c | 4 ++++
>  1 file changed, 4 insertions(+)

Luis???