linux-kernel - Re: [patch 05/10] PCI/MSI: Switch to MSI descriptor locking to guard()

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Message-ID: <20250312151021.00002ed2@huawei.com>
Date: Wed, 12 Mar 2025 15:10:21 +0000
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Thomas Gleixner <tglx@...utronix.de>
CC: LKML <linux-kernel@...r.kernel.org>, Marc Zyngier <maz@...nel.org>, Bjorn
 Helgaas <bhelgaas@...gle.com>, <linux-pci@...r.kernel.org>, "Nishanth Menon"
	<nm@...com>, Tero Kristo <kristo@...nel.org>, Santosh Shilimkar
	<ssantosh@...nel.org>, Jon Mason <jdmason@...zu.us>, Dave Jiang
	<dave.jiang@...el.com>, Allen Hubbe <allenbh@...il.com>,
	<ntb@...ts.linux.dev>, Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu
	<wei.liu@...nel.org>, <linux-hyperv@...r.kernel.org>, Wei Huang
	<wei.huang2@....com>, Manivannan Sadhasivam
	<manivannan.sadhasivam@...aro.org>, "James E.J. Bottomley"
	<James.Bottomley@...senPartnership.com>, "Martin K. Petersen"
	<martin.petersen@...cle.com>, <linux-scsi@...r.kernel.org>
Subject: Re: [patch 05/10] PCI/MSI: Switch to MSI descriptor locking to
 guard()

On Tue, 11 Mar 2025 22:45:44 +0100
Thomas Gleixner <tglx@...utronix.de> wrote:

> On Tue, Mar 11 2025 at 18:10, Jonathan Cameron wrote:
> > On Sun,  9 Mar 2025 09:41:49 +0100 (CET)
> > Thomas Gleixner <tglx@...utronix.de> wrote:
> >
> > This one runs into some of the stuff that the docs say
> > to not do.  I don't there there are bugs in here as such
> > but it gets harder to reason about and fragile in the long
> > run.  Easy enough to avoid though - see inline.  
> 
> Right. Updated variant below.
LGTM

Thanks,

Jonathan