linux-kernel - Re: [PATCH v2 1/2] hwtracing: hisi_ptt: Only add the supported devices to the filters list

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Message-ID: <ecd7ec21-5d5e-9d71-d308-4878053e0277@huawei.com>
Date:   Wed, 11 Jan 2023 14:52:52 +0800
From:   Yicong Yang <yangyicong@...wei.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
CC:     <yangyicong@...ilicon.com>, <suzuki.poulose@....com>,
        <mathieu.poirier@...aro.org>, <jonathan.cameron@...wei.com>,
        <linux-kernel@...r.kernel.org>,
        <alexander.shishkin@...ux.intel.com>, <linux-pci@...r.kernel.org>,
        <prime.zeng@...wei.com>, <linuxarm@...wei.com>
Subject: Re: [PATCH v2 1/2] hwtracing: hisi_ptt: Only add the supported
 devices to the filters list

Hi Bjorn,

On 2023/1/10 23:05, Bjorn Helgaas wrote:
> On Tue, Jan 10, 2023 at 09:08:32PM +0800, Yicong Yang wrote:
>> From: Yicong Yang <yangyicong@...ilicon.com>
>>
>> The PTT device can only support the devices on the same PCIe core,
>> within BDF range [lower_bdf, upper_bdf]. It's not correct to assume
>> the devices on the root bus are from the same PCIe core, there are
>> cases that root ports from different PCIe core are sharing the same
>> bus. So add the checking when initialize the filters list.
> 
> "So check when initializing the filters list."
> .

Thanks for the comment. Will reword this sentence as suggested.

Thanks.