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Message-ID: <ff1486b7-1072-b4a6-ff51-1d5861d2c17b@suse.com>
Date:   Mon, 9 Dec 2019 07:25:39 +0100
From:   Jürgen Groß <jgross@...e.com>
To:     Qais Yousef <qais.yousef@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 10/14] driver: xen: Replace cpu_up/down with
 device_online/offline

On 25.11.19 12:27, Qais Yousef wrote:
> The core device API performs extra housekeeping bits that are missing
> from directly calling cpu_up/down.
> 
> See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and
> serialization during LPM") for an example description of what might go
> wrong.
> 
> This also prepares to make cpu_up/down a private interface for anything
> but the cpu subsystem.
> 
> Signed-off-by: Qais Yousef <qais.yousef@....com>

Reviewed-by: Juergen Gross <jgross@...e.com>


Juergen

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