linux-kernel - Re: [PATCH v2] ALSA: rme9652: use explicitly signed char

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Date:   Tue, 25 Oct 2022 14:08:29 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org
Subject: Re: [PATCH v2] ALSA: rme9652: use explicitly signed char

On Tue, Oct 25, 2022 at 08:21:55AM +0200, Takashi Iwai wrote:
> On Tue, 25 Oct 2022 02:03:13 +0200,
> Jason A. Donenfeld wrote:
> > 
> > With char becoming unsigned by default, and with `char` alone being
> > ambiguous and based on architecture, signed chars need to be marked
> > explicitly as such. This fixes warnings like:
> > 
> > sound/pci/rme9652/hdsp.c:3953 hdsp_channel_buffer_location() warn: 'hdsp->channel_map[channel]' is unsigned
> > sound/pci/rme9652/hdsp.c:4153 snd_hdsp_channel_info() warn: impossible condition '(hdsp->channel_map[channel] < 0) => (0-255 < 0)'
> > sound/pci/rme9652/rme9652.c:1833 rme9652_channel_buffer_location() warn: 'rme9652->channel_map[channel]' is unsigned
> > 
> > Cc: Jaroslav Kysela <perex@...ex.cz>
> > Cc: Takashi Iwai <tiwai@...e.com>
> > Cc: alsa-devel@...a-project.org
> > Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
> 
> Applied now.  Thanks!

Thanks. For this and the other patch, applied for 6.1 or 6.2?

Jason