linux-kernel - RE: [PATCH] vfio: platform: ignore missing reset if disabled at module init

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Message-ID: <BN9PR11MB527630B903EC14BC61351C668CD39@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Mon, 30 Jan 2023 09:05:34 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Tomasz Duszynski <tduszynski@...vell.com>,
        Eric Auger <eric.auger@...hat.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        "open list:VFIO PLATFORM DRIVER" <kvm@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
CC:     "jerinj@...vell.com" <jerinj@...vell.com>
Subject: RE: [PATCH] vfio: platform: ignore missing reset if disabled at
 module init

> From: Tomasz Duszynski <tduszynski@...vell.com>
> Sent: Thursday, January 26, 2023 12:11 AM
> @@ -653,7 +653,8 @@ int vfio_platform_init_common(struct
> vfio_platform_device *vdev)
>  	if (ret && vdev->reset_required)
>  		dev_err(dev, "No reset function found for device %s\n",
>  			vdev->name);
> -	return ret;
> +
> +	return vdev->reset_required ? ret : 0;
>  }
>  EXPORT_SYMBOL_GPL(vfio_platform_init_common);

It reads slightly better to me as below:

	if (ret & vdev->reset_required) {
		dev_err(...);
		return ret;
	}

	return 0;