Re: [PATCH v9 10/11] PCI: Add match_driver in struct pci_dev

From: Yinghai Lu
Date: Mon Jan 21 2013 - 00:21:52 EST


On Sun, Jan 20, 2013 at 3:15 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> On Thursday, January 17, 2013 11:53:21 PM Yinghai Lu wrote:
>> with that we could move out attaching driver for pci device,
>> out of device_add for pci hot add path.
>>
>> pci_bus_attach_device() will attach driver to pci device.
>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> for the code, but you still aren't saying in the changelog why the change
> is needed.

Thanks.

Please check if the changelog is good to you.

---
Subject: [PATCH] PCI: Skip attaching driver in device_add()

We want to add pci device to device tree as early as possible but
delay attach driver in next following path.

To make that patch smaller, in this patch:

We add match_driver field in pci_dev and default vaule is false, it will
make pci_bus_match fail, so device_add will skip attaching driver,
then pci_bus_attach_device() will set match_driver to true so
pci_bus_match will return true and device_attach will attach driver
to pci device.

---
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/