linux-kernel - RE: [PATCH] PCI: hv: Only reuse existing IRTE allocation for Multi-MSI

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Message-ID: <SA1PR21MB1335D9CF9F0B1C101F15E047BF659@SA1PR21MB1335.namprd21.prod.outlook.com>
Date:   Wed, 10 Aug 2022 21:51:23 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Jeffrey Hugo <quic_jhugo@...cinc.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "lpieralisi@...nel.org" <lpieralisi@...nel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        "robh@...nel.org" <robh@...nel.org>, "kw@...ux.com" <kw@...ux.com>,
        "helgaas@...nel.org" <helgaas@...nel.org>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "boqun.feng@...il.com" <boqun.feng@...il.com>,
        Boqun Feng <Boqun.Feng@...rosoft.com>
CC:     Carl Vanderlip <quic_carlv@...cinc.com>
Subject: RE: [PATCH] PCI: hv: Only reuse existing IRTE allocation for
 Multi-MSI

> From: Jeffrey Hugo <quic_jhugo@...cinc.com>
> Sent: Thursday, August 4, 2022 7:22 AM
>  ...
> > Fixes: b4b77778ecc5 ("PCI: hv: Reuse existing IRTE allocation in
> compose_msi_msg()")
> > Signed-off-by: Dexuan Cui <decui@...rosoft.com>
> > Cc: Jeffrey Hugo <quic_jhugo@...cinc.com>
> > Cc: Carl Vanderlip <quic_carlv@...cinc.com>
> > ---
> 
> I'm sorry a regression has been discovered.  Right now, the issue
> doesn't make sense to me.  I'd love to know what you find out.
> 
> This stopgap solution appears reasonable to me.
> 
> Reviewed-by: Jeffrey Hugo <quic_jhugo@...cinc.com>

Hi Lorenzo, Bjorn and all,
Would you please take a look at the patch?

Thanks,
-- Dexuan