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Re: [PATCH v2 2/7] hw/ide: Get rid of piix4_init function

From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v2 2/7] hw/ide: Get rid of piix4_init function
Date: Tue, 17 Mar 2020 15:01:48 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

On 3/17/20 2:50 PM, John Snow wrote:
On 3/17/20 6:49 AM, Philippe Mathieu-Daudé wrote:
On 3/17/20 11:41 AM, Philippe Mathieu-Daudé wrote:
On 3/17/20 10:39 AM, BALATON Zoltan wrote:
This removes pci_piix4_ide_init() function similar to clean up done to
other ide devices.

Signed-off-by: BALATON Zoltan <address@hidden>
Reviewed-by: Mark Cave-Ayland <address@hidden>
Reviewed-by: Markus Armbruster <address@hidden>

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

Please disregard this tag (I withdraw it), I mis-read the pci variable
was not assigned.

Is there an issue you've noticed, or you are just no longer certain
enough to give an RB?

I asked Zoltan there why he was reassigning 'pci' and he replied here:

I don't know enough the PCI API (and don't have time this week to dig into it) to check how pci->devfn is used (is it populated by a pci_create() call?).

    pci = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(10, 0),
                                          true, TYPE_PIIX4_PCI_DEVICE);
+   pci = pci_create_simple(pci_bus, pci->devfn + 1, "piix4-ide");
    pci_create_simple(pci_bus, pci->devfn + 2, "piix4-usb-uhci");

What annoys me is here -------^^^^^^ I don't know if reassigning the pci variable can have an impact, so as I am not confident I prefer to withdraw my review tag.

Since the patch already has 2 R-b I'm not going to NAck it neither.

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