linux-kernel - Re: [PATCH] ALSA: compat_ioctl: avoid compat_alloc_user

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Message-ID: <s5htuvrpltc.wl-tiwai@suse.de>
Date:   Mon, 21 Sep 2020 10:37:35 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        hch@....de, Takashi Sakamoto <o-takashi@...amocchi.jp>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: compat_ioctl: avoid compat_alloc_user_space

On Fri, 18 Sep 2020 11:56:19 +0200,
Arnd Bergmann wrote:
> 
> Using compat_alloc_user_space() tends to add complexity
> to the ioctl handling, so I am trying to remove it everywhere.
> 
> The two callers in sound/core can rewritten to just call
> the same code that operates on a kernel pointer as the
> native handler.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied now.  Thanks!


Takashi