linux-kernel - Re: [PATCH v19 0/3] add debugfs to migration driver

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Message-ID: <3288c4f2-551d-a559-4e6a-76590236c72d@huawei.com>
Date:   Fri, 1 Dec 2023 11:08:46 +0800
From:   liulongfang <liulongfang@...wei.com>
To:     <alex.williamson@...hat.com>, <jgg@...dia.com>,
        <shameerali.kolothum.thodi@...wei.com>,
        <jonathan.cameron@...wei.com>
CC:     <bcreeley@....com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...neuler.org>
Subject: Re: [PATCH v19 0/3] add debugfs to migration driver

On 2023/11/6 15:22, Longfang Liu wrote:
> Add a debugfs function to the migration driver in VFIO to provide
> a step-by-step debugfs information for the migration driver.
> 
> Changes v18 -> v19
> 	maintainers add a patch.
> 
> Changes v17 -> v18
> 	Replace seq_printf() with seq_puts().
> 
> Changes v16 -> v17
> 	Add separate VFIO_DEBUGFS Kconfig entries.
> 
> Changes v15 -> v16
> 	Update the calling order of functions to maintain symmetry
> 
> Changes v14 -> v15
> 	Update the output status value of live migration.
> 
> Changes v13 -> v14
> 	Split the patchset and keep the vfio debugfs frame.
> 
> Changes v12 -> v13
> 	Solve the problem of open and close competition to debugfs.
> 
> Changes v11 -> v12
> 	Update loading conditions of vfio debugfs.
> 
> Changes v10 -> v11
> 	Delete the device restore function in debugfs.
> 
> Changes v9 -> v10
> 	Update the debugfs file of the live migration driver.
> 
> Changes v8 -> v9
> 	Update the debugfs directory structure of vfio.
> 
> Changes v7 -> v8
> 	Add support for platform devices.
> 
> Changes v6 -> v7
> 	Fix some code style issues.
> 
> Changes v5 -> v6
> 	Control the creation of debugfs through the CONFIG_DEBUG_FS.
> 
> Changes v4 -> v5
> 	Remove the newly added vfio_migration_ops and use seq_printf
> 	to optimize the implementation of debugfs.
> 
> Changes v3 -> v4
> 	Change the migration_debug_operate interface to debug_root file.
> 
> Changes v2 -> v3
> 	Extend the debugfs function from hisilicon device to vfio.
> 
> Changes v1 -> v2
> 	Change the registration method of root_debugfs to register
> 	with module initialization. 
> 
> Longfang Liu (3):
>   vfio/migration: Add debugfs to live migration driver
>   Documentation: add debugfs description for vfio
>   MAINTAINERS: Update the maintenance directory of vfio driver
> 
>  Documentation/ABI/testing/debugfs-vfio | 25 +++++++
>  MAINTAINERS                            |  1 +
>  drivers/vfio/Kconfig                   | 10 +++
>  drivers/vfio/Makefile                  |  1 +
>  drivers/vfio/debugfs.c                 | 90 ++++++++++++++++++++++++++
>  drivers/vfio/vfio.h                    | 14 ++++
>  drivers/vfio/vfio_main.c               |  4 ++
>  include/linux/vfio.h                   |  7 ++
>  include/uapi/linux/vfio.h              |  1 +
>  9 files changed, 153 insertions(+)
>  create mode 100644 Documentation/ABI/testing/debugfs-vfio
>  create mode 100644 drivers/vfio/debugfs.c
> 
Hi, Alex:
Please review this patchset.

Thanks.
Longfang.