linux-kernel - Re: [PATCH 09/11] PCI: add matching checks for driver

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Message-ID: <YMd1ZSCZLjaE4TFb@infradead.org>
Date:   Mon, 14 Jun 2021 16:27:33 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Max Gurtovoy <mgurtovoy@...dia.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>, cohuck@...hat.com,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        aviadye@...dia.com, oren@...dia.com, shahafs@...dia.com,
        parav@...dia.com, artemp@...dia.com, kwankhede@...dia.com,
        ACurrid@...dia.com, cjia@...dia.com, yishaih@...dia.com,
        kevin.tian@...el.com, targupta@...dia.com,
        shameerali.kolothum.thodi@...wei.com, liulongfang@...wei.com,
        yan.y.zhao@...el.com
Subject: Re: [PATCH 09/11] PCI: add matching checks for driver_override
 binding

On Mon, Jun 14, 2021 at 11:18:32AM +0300, Max Gurtovoy wrote:
>   *			into a static list of equivalent device types,
>   *			instead of using it as a pointer.
> + * @flags:		PCI flags of the driver. Bitmap of pci_id_flags enum.
>   */
>  struct pci_device_id {
>  	__u32 vendor, device;		/* Vendor and device ID or PCI_ANY_ID*/
>  	__u32 subvendor, subdevice;	/* Subsystem ID's or PCI_ANY_ID */
>  	__u32 class, class_mask;	/* (class,subclass,prog-if) triplet */
>  	kernel_ulong_t driver_data;	/* Data private to the driver */
> +	__u32 flags;
>  };

Isn't struct pci_device_id a userspace ABI due to MODULE_DEVICE_TABLE()?