From: Dexuan Cui <decui@microsoft.com>
To: Boqun Feng <boqun.feng@gmail.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Michael Kelley <mikelley@microsoft.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Sasha Levin <sashal@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
"x86@kernel.org" <x86@kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Andrew Murray <andrew.murray@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Andrew Murray <amurray@thegoodpenguin.co.uk>
Subject: RE: [PATCH v3 3/3] PCI: hv: Introduce hv_msi_entry
Date: Thu, 13 Feb 2020 08:05:12 +0000 [thread overview]
Message-ID: <HK0P153MB0148D7765062717B0AE6B4D3BF1A0@HK0P153MB0148.APCP153.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <20200213071407.GD69108@debian-boqun.qqnc3lrjykvubdpftowmye0fmh.lx.internal.cloudapp.net>
> From: Boqun Feng <boqun.feng@gmail.com>
> Sent: Wednesday, February 12, 2020 11:14 PM
>
> On Thu, Feb 13, 2020 at 04:18:01AM +0000, Dexuan Cui wrote:
> > > From: linux-hyperv-owner@vger.kernel.org
> > > <linux-hyperv-owner@vger.kernel.org> On Behalf Of Boqun Feng
> > > diff --git a/arch/x86/include/asm/hyperv-tlfs.h
> > > b/arch/x86/include/asm/hyperv-tlfs.h
> > >
> > > +union hv_msi_entry {
> > > + u64 as_uint64;
> > > + struct {
> > > + u32 address;
> > > + u32 data;
> > > + } __packed;
> > > +};
> >
> > Just a small thing: should we move the __packed to after the "}" of
> > the union hv_msi_entry ?
> >
>
> Actually, in TLFS header, it's common to put the "__packed" inside the
> union, rather than after the union. It makes sense because union is
> different than struct: the alignment requirement of a union is already
> decided by the "as_*" member, so no need for "__packed" attribute.
>
> Regards,
> Boqun
I see. Thanks for the explanation!
Thanks,
-- Dexuan
next prev parent reply other threads:[~2020-02-13 8:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 3:39 [PATCH v3 0/3] PCI: hv: Generify pci-hyperv.c Boqun Feng
2020-02-10 3:39 ` [PATCH v3 1/3] PCI: hv: Move hypercall related definitions into tlfs header Boqun Feng
2020-02-13 4:17 ` Dexuan Cui
2020-02-10 3:39 ` [PATCH v3 2/3] PCI: hv: Move retarget related structures " Boqun Feng
2020-02-13 4:17 ` Dexuan Cui
2020-02-13 7:26 ` Boqun Feng
2020-02-13 8:04 ` Dexuan Cui
2020-02-10 3:39 ` [PATCH v3 3/3] PCI: hv: Introduce hv_msi_entry Boqun Feng
2020-02-13 4:18 ` Dexuan Cui
2020-02-13 7:14 ` Boqun Feng
2020-02-13 8:05 ` Dexuan Cui [this message]
2020-02-21 2:33 ` [PATCH v3 0/3] PCI: hv: Generify pci-hyperv.c Boqun Feng
2020-02-21 10:44 ` Lorenzo Pieralisi
2020-03-09 14:35 ` Boqun Feng
2020-03-09 15:03 ` Lorenzo Pieralisi
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