linux-kernel - Re: [PATCH 2/2] USB: misc: Add onboard_usb

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Message-ID: <20200914195215.GD2022397@google.com>
Date:   Mon, 14 Sep 2020 12:52:15 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Cc:     Alan Stern <stern@...land.harvard.edu>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bastien Nocera <hadess@...ess.net>,
        Ravi Chandra Sadineni <ravisadineni@...omium.org>,
        linux-usb@...r.kernel.org, Stephen Boyd <swboyd@...omium.org>,
        devicetree@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        Peter Chen <peter.chen@....com>, linux-kernel@...r.kernel.org,
        "Alexander A. Klimov" <grandmaster@...klimov.de>,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: Re: [PATCH 2/2] USB: misc: Add onboard_usb_hub driver

Hi,

I just noticed that building this results in a compilation error, due
to a missing brace. I tested this patch, but with another patch on top
with debug logs, the other patch adds the brace.

I'll still hold off a bit before sending v2, for if others have
comments.

On Mon, Sep 14, 2020 at 11:27:49AM -0700, Matthias Kaehlcke wrote:

> diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
> new file mode 100644
> index 000000000000..e5a816d0b124
> --- /dev/null
> +++ b/drivers/usb/misc/onboard_usb_hub.c
>
> +static int onboard_hub_suspend(struct platform_device *pdev, pm_message_t msg)
> +{
> +	struct onboard_hub *hub = dev_get_drvdata(&pdev->dev);
> +	int rc = 0;
> +
> +	if (!hub->cfg.power_off_in_suspend)
> +		return 0;
> +
> +	hub->has_wakeup_capable_descendants = false;
> +
> +	if (hub->cfg.wakeup_source) {
> +		struct udev_node *node;
> +
> +		mutex_lock(&hub->lock);
> +
> +		list_for_each_entry(node, &hub->udev_list, list) {
> +			if (usb_wakeup_enabled_descendants(node->udev)) {
> +				hub->has_wakeup_capable_descendants = true;
> +				break;

missing brace here:	}

> +		}
> +
> +		mutex_unlock(&hub->lock);
> +	}
> +
> +	if (!hub->has_wakeup_capable_descendants)
> +		rc = onboard_hub_power_off(hub);
> +
> +	return rc;
> +}