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From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: Vidya Sagar <vidyas@nvidia.com>
Cc: Sinan Kaya <okaya@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	bhelgaas@google.com, Thierry Reding <treding@nvidia.com>,
	jonathanh@nvidia.com, linux-tegra@vger.kernel.org,
	linux-pci@vger.kernel.org, kthota@nvidia.com,
	mmaddireddy@nvidia.com, sagar.tv@gmail.com
Subject: Re: [PATCH] PCI: Add CRS timeout for pci_device_is_present()
Date: Mon, 4 Nov 2019 16:52:55 +0000	[thread overview]
Message-ID: <20191104165255.GA26409@e121166-lin.cambridge.arm.com> (raw)
In-Reply-To: <065d1b8a-29e1-9282-27ba-5512f9f4f1d4@nvidia.com>

On Mon, Nov 04, 2019 at 05:13:50PM +0530, Vidya Sagar wrote:
> On 10/26/2019 7:29 PM, Sinan Kaya wrote:
> > On 10/25/2019 7:58 AM, Vidya Sagar wrote:
> > > On 10/21/2019 11:13 AM, Vidya Sagar wrote:
> > > 
> > > Hi Sinan / Rafael,
> > > Apologies for the ping again.
> > > Do you guys have any further comments on this?
> > > 
> > > -Vidya Sagar
> > 
> > I think you'll need some attention from Bjorn here to see the complete
> > picture.
> > 
> > As I said, changing pci_device_is_present() is not right. This needs to
> > be done at one level higher.
> 
> Hi Bjorn,
> Could you please help me understand why this change can't be done in
> pci_device_is_present() API?

I assume that's because pci_device_is_present() is currently called
in contexts that aren't allowed to sleep, therefore you would trigger
a regression.

Lorenzo

  reply	other threads:[~2019-11-04 16:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-05 18:21 [PATCH] PCI: Add CRS timeout for pci_device_is_present() Vidya Sagar
2019-10-14  8:20 ` Thierry Reding
2019-10-14 20:21   ` Sinan Kaya
2019-10-15  9:30     ` Thierry Reding
2019-10-15 11:10       ` Sinan Kaya
2019-10-15 12:14         ` Vidya Sagar
     [not found]           ` <afa16546-e63d-6eba-8be0-8e52339cd100@nvidia.com>
2019-10-25 11:58             ` Vidya Sagar
2019-10-26 13:59               ` Sinan Kaya
2019-11-04 11:43                 ` Vidya Sagar
2019-11-04 16:52                   ` Lorenzo Pieralisi [this message]
2019-11-04 17:39           ` Bjorn Helgaas
2019-11-05 10:55             ` Rafael J. Wysocki
2019-11-06 16:41               ` Bjorn Helgaas
2019-11-11  6:01                 ` Vidya Sagar
2019-11-11 22:32                   ` Bjorn Helgaas
2019-11-12 12:59                     ` Thierry Reding
2019-11-12 14:21                       ` Bjorn Helgaas
2019-11-12 17:59                         ` Vidya Sagar
2019-11-12 18:58                           ` Bjorn Helgaas
2019-11-13  5:39                             ` Vidya Sagar
2019-11-13 11:20                             ` Thierry Reding
2019-11-14 18:36                               ` Bjorn Helgaas
2019-11-15 10:04                                 ` Vidya Sagar
2019-11-15 22:36                                   ` Bjorn Helgaas
2019-11-18 15:18                                     ` Vidya Sagar
2019-11-12 17:59                     ` Vidya Sagar
2019-10-15 12:03       ` Vidya Sagar
2019-10-15 11:34     ` Vidya Sagar
2019-10-14 10:45 ` Andrew Murray

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