linux-kernel - Re: [PATCH 4/4] ALSA: emu10k1: Cocci spatch "alloc

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Message-ID: <s5ha81ocwhq.wl-tiwai@suse.de>
Date:   Thu, 21 Sep 2017 10:00:01 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     "Thomas Meyer" <thomas@...3r.de>
Cc:     <alsa-devel@...a-project.org>, <perex@...ex.cz>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] ALSA: emu10k1: Cocci spatch "alloc_cast"

On Thu, 21 Sep 2017 08:33:46 +0200,
Thomas Meyer wrote:
> 
> Remove casting the values returned by memory allocation functions like
> kmalloc, kzalloc, kmem_cache_alloc, kmem_cache_zalloc etc."
> Found by coccinelle spatch "api/alloc/alloc_cast.cocci"
> 
> Signed-off-by: Thomas Meyer <thomas@...3r.de>

No, this cast is still required because it has __user annotation.
It's not about compiler warning but about sparse.


thanks,

Takashi