linux-kernel - Re: [PATCH] ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT

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Message-ID: <20210625090538.GG2040@kadam>
Date:   Fri, 25 Jun 2021 12:05:39 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        clemens@...isch.de, perex@...ex.cz, tiwai@...e.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no
 AMDTP_OUT_STREAM stream is found

On Fri, Jun 25, 2021 at 06:05:50AM +0900, Takashi Sakamoto wrote:
> 
> In kernel v5.10 or later, we can use 'list_entry_is_head()' macro added
> by a commit e130816164e2 ("include/linux/list.h: add a macro to test if
> entry is pointing to the head").

Someone needs to backport that all the way back...

regards,
dan carpenter