From mboxrd@z Thu Jan 1 00:00:00 1970 From: Amit Shah Subject: Re: [PATCH v4 01/12] virtio: pci: switch to new PM API Date: Wed, 7 Dec 2011 15:22:29 +0530 Message-ID: <20111207095229.GF4651@amit-x200.redhat.com> References: <201112062312.36498.rjw@sisk.pl> <20111207035703.GA4651@amit-x200.redhat.com> <201112071048.24566.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <201112071048.24566.rjw@sisk.pl> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: "Rafael J. Wysocki" Cc: linux-kernel@vger.kernel.org, "Michael S. Tsirkin" , levinsasha928@gmail.com, Virtualization List List-Id: virtualization@lists.linuxfoundation.org On (Wed) 07 Dec 2011 [10:48:24], Rafael J. Wysocki wrote: > On Wednesday, December 07, 2011, Amit Shah wrote: > > Hi Rafael, > > > > On (Tue) 06 Dec 2011 [23:12:36], Rafael J. Wysocki wrote: > > > Hi, > > > > > > On Tuesday, December 06, 2011, Amit Shah wrote: > > > > The older PM API doesn't have a way to get notifications on hibernate > > > > events. Switch to the newer one that gives us those notifications. > > > > > > > > Signed-off-by: Amit Shah > > > > --- > > > > drivers/virtio/virtio_pci.c | 16 ++++++++++++---- > > > > 1 files changed, 12 insertions(+), 4 deletions(-) > > > > > > > > diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c > > > > index 03d1984..23e1532 100644 > > > > --- a/drivers/virtio/virtio_pci.c > > > > +++ b/drivers/virtio/virtio_pci.c > > > > @@ -708,19 +708,28 @@ static void __devexit virtio_pci_remove(struct pci_dev *pci_dev) > > > > } > > > > > > > > #ifdef CONFIG_PM > > > > -static int virtio_pci_suspend(struct pci_dev *pci_dev, pm_message_t state) > > > > +static int virtio_pci_suspend(struct device *dev) > > > > { > > > > + struct pci_dev *pci_dev = to_pci_dev(dev); > > > > + > > > > pci_save_state(pci_dev); > > > > pci_set_power_state(pci_dev, PCI_D3hot); > > > > return 0; > > > > } > > > > > > > > -static int virtio_pci_resume(struct pci_dev *pci_dev) > > > > +static int virtio_pci_resume(struct device *dev) > > > > { > > > > + struct pci_dev *pci_dev = to_pci_dev(dev); > > > > + > > > > pci_restore_state(pci_dev); > > > > pci_set_power_state(pci_dev, PCI_D0); > > > > return 0; > > > > } > > > > + > > > > +static const struct dev_pm_ops virtio_pci_pm_ops = { > > > > + .suspend = virtio_pci_suspend, > > > > + .resume = virtio_pci_resume, > > > > +}; > > > > #endif > > > > > > You seem to have forgotten about hibernation callbacks. > > > > This patch just moves to the new API keeping everything else the same. > > The hibernation callbacks come in patch 2. > > OK, but then hibernation will be broken between the two patches, so perhaps > it's better to merge them into one? The hibernation support doesn't exist now. It's added in the later patches of the series (3 onwards). Amit