linux-kernel - RE: [EXTERNAL] [PATCH 1/6] PCI: hv: fix a race condition bug in hv_pci_query

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Message-ID: <SA1PR21MB133553326FBAD376DE9DB48ABF889@SA1PR21MB1335.namprd21.prod.outlook.com>
Date:   Tue, 28 Mar 2023 05:38:59 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Saurabh Singh Sengar <ssengar@...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>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        "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: [EXTERNAL] [PATCH 1/6] PCI: hv: fix a race condition bug in
 hv_pci_query_relations()

> From: Saurabh Singh Sengar <ssengar@...rosoft.com>
> Sent: Monday, March 27, 2023 10:29 PM
> > ...
> > ---

Please note this special line "---". 
Anything after the special line and before the line "diff --git" is discarded
automaticaly by 'git' and 'patch'. 

> >  drivers/pci/controller/pci-hyperv.c | 13 +++++++++++++
> >  1 file changed, 13 insertions(+)
> >
> > @@ -3635,6 +3641,8 @@ static int hv_pci_probe(struct hv_device *hdev,
> >
> >  retry:
> >  	ret = hv_pci_query_relations(hdev);
> > +	printk("hv_pci_query_relations() exited\n");
> 
> Can we use pr_* or the appropriate KERN_<LEVEL> in all the printk(s).

This is not part of the real patch :-)
I just thought the debug code can help understand the issues
resolved by the patches.
I'll remove the debug code to avoid confusion if I need to post v2.