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X-Received-From: 2607:f8b0:4864:20::344 Subject: Re: [Qemu-devel] [PATCH v2 06/10] hw/audio/ac97: Use the QOM DEVICE() macro to access DeviceState.qdev X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , qemu-s390x , Dmitry Fleytman , Alex Williamson , Aleksandar Markovic , "Michael S. Tsirkin" , QEMU Trivial , David Hildenbrand , QEMU Developers , Markus Armbruster , Halil Pasic , Aleksandar Rikalo , Michael Walle , Gerd Hoffmann , Cornelia Huck , Paolo Bonzini , Christian Borntraeger , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, 28 May 2019 at 17:42, Philippe Mathieu-Daud=C3=A9 wrote: > > Rather than looking inside the definition of a DeviceState with > "s->qdev", use the QOM prefered style: "DEVICE(s)". > > This patch was generated using the following Coccinelle script > (with a bit of manual fix-up, removing an extra space to please > checkpatch.pl): > > // Use DEVICE() macros to access DeviceState.qdev > @use_device_macro_to_access_qdev@ > expression obj; > identifier dev; > @@ > -&obj->dev.qdev > +DEVICE(obj) > > Suggested-by: Peter Maydell > Signed-off-by: Philippe Mathieu-Daud=C3=A9 > --- > hw/audio/ac97.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/hw/audio/ac97.c b/hw/audio/ac97.c > index 2265622d44..a4e8d99e77 100644 > --- a/hw/audio/ac97.c > +++ b/hw/audio/ac97.c > @@ -1388,7 +1388,7 @@ static void ac97_realize(PCIDevice *dev, Error **er= rp) > pci_register_bar (&s->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_nam)= ; > pci_register_bar (&s->dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &s->io_nabm= ); > AUD_register_card ("ac97", &s->card); > - ac97_on_reset (&s->dev.qdev); > + ac97_on_reset(DEVICE(s)); > } Reviewed-by: Peter Maydell . As an aside, this function has a lot of uses of "&s->dev" to get the PCIDevice* given an AC97LinkState*. This isn't necessary as the function has been passed the PCIDevice* as its argument, so all the uses of "&s->dev" here could just be written as "dev". thanks -- PMM