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Date:   Fri, 20 Nov 2020 10:37:47 +0100
From:   Johan Hovold <>
To:     Davidlohr Bueso <>
Subject: Re: [PATCH v3] USB: serial: mos7720: defer state restore to a

On Thu, Nov 19, 2020 at 08:53:00PM -0800, Davidlohr Bueso wrote:
> The parallel port restore operation currently defers writes
> to a tasklet, if it sees a locked disconnect mutex. The
> driver goes to a lot of trouble to ensure writes happen
> in a non-blocking context, but things can be greatly
> simplified if it's done in regular process context and
> this is not a system performance critical path. As such,
> instead of doing the state restore writes in irq context,
> use a workqueue and just do regular synchronous writes.
> In addition to the cleanup, this also imposes less on the
> overall system as tasklets have been deprecated because
> of it's softirq implications, potentially blocking a higher
> priority task from running.
> Signed-off-by: Davidlohr Bueso <>

Now applied, thanks!


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