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Date:   Tue, 10 Jan 2023 09:05:10 -0600
From:   Bjorn Helgaas <helgaas@kernel.org>
To:     Yicong Yang <yangyicong@huawei.com>
Cc:     suzuki.poulose@arm.com, mathieu.poirier@linaro.org,
        jonathan.cameron@huawei.com, linux-kernel@vger.kernel.org,
        alexander.shishkin@linux.intel.com, linux-pci@vger.kernel.org,
        prime.zeng@huawei.com, linuxarm@huawei.com,
        Yicong Yang <yangyicong@hisilicon.com>
Subject: Re: [PATCH v2 1/2] hwtracing: hisi_ptt: Only add the supported
 devices to the filters list
Message-ID: <20230110150510.GA1502847@bhelgaas>
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In-Reply-To: <20230110130833.53474-1-yangyicong@huawei.com>
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On Tue, Jan 10, 2023 at 09:08:32PM +0800, Yicong Yang wrote:
> From: Yicong Yang <yangyicong@hisilicon.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."