linux-kernel - RE: [PATCH 5/6] PCI: hv: Add a per-bus mutex state

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Message-ID: <SA1PR21MB1335F4BFD506DC8486D30CCCBF899@SA1PR21MB1335.namprd21.prod.outlook.com>
Date:   Wed, 29 Mar 2023 16:54:02 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Jake Oshins <jakeo@...rosoft.com>,
        "kuba@...nel.org" <kuba@...nel.org>, "kw@...ux.com" <kw@...ux.com>,
        KY Srinivasan <kys@...rosoft.com>,
        "leon@...nel.org" <leon@...nel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "lpieralisi@...nel.org" <lpieralisi@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "robh@...nel.org" <robh@...nel.org>,
        "saeedm@...dia.com" <saeedm@...dia.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        Long Li <longli@...rosoft.com>,
        "boqun.feng@...il.com" <boqun.feng@...il.com>
CC:     "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH 5/6] PCI: hv: Add a per-bus mutex state_lock

> From: Michael Kelley (LINUX) <mikelley@...rosoft.com>
> Sent: Wednesday, March 29, 2023 9:42 AM
>  ...
> From: Dexuan Cui <decui@...rosoft.com> Sent: Monday, March 27, 2023 9:51
> PM
> >
> 
> [snip]
> 
> > @@ -3945,20 +3962,26 @@ static int hv_pci_resume(struct hv_device
> *hdev)
> >  	if (ret)
> >  		goto out;
> >
> > +	mutex_lock(&hbus->state_lock);
> > +
> >  	ret = hv_pci_enter_d0(hdev);
> >  	if (ret)
> >  		goto out;
> 
> Shouldn't this be goto release_state_lock?

Hmm, somehow I missed this. Will fix this in v2.