linux-kernel - Re: [PATCH] ALSA: make snd_kcontrol

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Date:   Mon, 26 Oct 2020 18:03:51 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Arnd Bergmann <arnd@...db.de>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: make snd_kcontrol_new name a normal string

On Mon, 26 Oct 2020 17:52:18 +0100,
Arnd Bergmann wrote:
> 
> From: Arnd Bergmann <arnd@...db.de>
> 
> When building with W=2, there are lots of warnings about the
> snd_kcontrol_new name field being an array of 'unsigned char'
> but initialized to a string:
> 
> include/sound/soc.h:93:48: warning: pointer targets in initialization of 'const unsigned char *' from 'char *' differ in signedness [-Wpointer-sign]
> 
> Make it a regular 'char *' to avoid flooding the build log with this.
> 
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

I'm fine to apply this, but I thought we agreed to ignore pointer
signedness intentionally?  There are lots of such places and we were
fed up in the past when gcc complained a lot about those...


thanks,

Takashi