linux-kernel - Re: [PATCH v4 2/5] hwtracing: hisi_ptt: Add support for dynamically updating the filter list

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Date:   Tue, 6 Jun 2023 17:40:41 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Yicong Yang <yangyicong@...wei.com>
CC:     <mathieu.poirier@...aro.org>, <suzuki.poulose@....com>,
        <corbet@....net>, <linux-kernel@...r.kernel.org>,
        <linux-doc@...r.kernel.org>, <alexander.shishkin@...ux.intel.com>,
        <helgaas@...nel.org>, <linux-pci@...r.kernel.org>,
        <prime.zeng@...wei.com>, <linuxarm@...wei.com>,
        <yangyicong@...ilicon.com>
Subject: Re: [PATCH v4 2/5] hwtracing: hisi_ptt: Add support for dynamically
 updating the filter list

On Tue, 6 Jun 2023 22:22:41 +0800
Yicong Yang <yangyicong@...wei.com> wrote:

> From: Yicong Yang <yangyicong@...ilicon.com>
> 
> The PCIe devices supported by the PTT trace can be removed/rescanned by
> hotplug or through sysfs.  Add support for dynamically updating the
> available filter list by registering a PCI bus notifier block. Then user
> can always get latest information about available tracing filters and
> driver can block the invalid filters of which related devices no longer
> exist in the system.
> 
> Signed-off-by: Yicong Yang <yangyicong@...ilicon.com>

You've addressed everything I raised on v3, so
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

Thanks,

Jonathan