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Date:   Thu, 5 Oct 2017 10:17:16 -0700
From:   Kees Cook <>
To:     Takashi Iwai <>
Cc:     LKML <>,
        moderated for non-subscribers <>,
        Bhumika Goyal <>,
        Mark Brown <>,
        Thomas Gleixner <>,
        Jaroslav Kysela <>
Subject: Re: [PATCH] ALSA: sh: aica: Convert timers to use timer_setup()

On Wed, Oct 4, 2017 at 11:22 PM, Takashi Iwai <> wrote:
> On Thu, 05 Oct 2017 02:53:36 +0200,
> Kees Cook wrote:
>> In preparation for unconditionally passing the struct timer_list pointer to
>> all timer callbacks, switch to using the new timer_setup() and from_timer()
>> to pass the timer pointer explicitly. This requires adding a pointer to
>> hold the timer's target substream, as there won't be a way to pass this in
>> the future.
>> Cc: Jaroslav Kysela <>
>> Cc: Takashi Iwai <>
>> Cc: Bhumika Goyal <>
>> Cc: Mark Brown <>
>> Cc:
>> Cc: Thomas Gleixner <>
>> Signed-off-by: Kees Cook <>
>> ---
>> This requires commit 686fef928bba ("timer: Prepare to change timer
>> callback argument type") in v4.14-rc3, but should be otherwise
>> stand-alone.
> The conversions look straightforward, so I'm going to apply it (and
> other two you posted).  But now I wonder why only three were chosen.
> Will you keep working on the rest usages in sound/*, or would you
> expect us doing the rest?

Hi, thanks for applying them!

I'm working my way through the "non-trivial" changes first. I have a
coccinelle script that will do a mass-conversion of the common cases.
It's possible that those changes cover the other usages in sound/* or
that I haven't made my way through the others yet (it's a very long
list). I wouldn't object to other people helping with the conversions,
of course. :)


Kees Cook
Pixel Security

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