From patchwork Mon Oct 24 16:29:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason A. Donenfeld" X-Patchwork-Id: 13017793 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5E392C38A2D for ; Mon, 24 Oct 2022 16:31:04 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 856A57042; Mon, 24 Oct 2022 18:30:12 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 856A57042 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1666629062; bh=CzXAAVXU8uovyyam9kE9AIWp43j0hYtT9V7waGerSQA=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=m6/VrKJ0gp1dQddTUDezXV5XOE0Y76kuPqIftANLInW0pmjX7U65OF3HRSYyHPGvP /shnzxY4BwxGSjk7PrtHLJFfOd34293mcNHPL+oi2ivLWmMB0VPcvYE6wHs3CGNg+9 cMGVaQct/0PliyzMVaymOP+N6AmFy20pTatR3QLE= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 2E9D4F80543; Mon, 24 Oct 2022 18:30:12 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9C0E7F8054A; Mon, 24 Oct 2022 18:30:10 +0200 (CEST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id AF3F7F80506 for ; Mon, 24 Oct 2022 18:30:04 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz AF3F7F80506 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="bBhQKKLs" Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 057B4614AB; Mon, 24 Oct 2022 16:30:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E26B9C433D7; Mon, 24 Oct 2022 16:30:00 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="bBhQKKLs" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1666628999; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Z+4g9EF5Uj8HK2ZYL+/8gzSFpissp8WBpzlDIf+LycQ=; b=bBhQKKLs/ha9Td5EXWg8rIzTS4WpSoRdc5PibFDrqLttl5GpJ4FVA4cimnUtUxwTXUQOEQ 2GlRPeTAtjQ4l1eQKSlYIXQ6Ag88F84VAs7olV68Vox5ghNw6zeNG80Jvo/+pQLne9xD0w 0C3vuA9r7+S38fSpqM42qT7KykdPD7U= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 6421b49d (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Mon, 24 Oct 2022 16:29:59 +0000 (UTC) From: "Jason A. Donenfeld" To: linux-kernel@vger.kernel.org Subject: [PATCH] ALSA: rme9652: use explicitly signed char Date: Mon, 24 Oct 2022 18:29:47 +0200 Message-Id: <20221024162947.536060-1-Jason@zx2c4.com> MIME-Version: 1.0 Cc: "Jason A. Donenfeld" , Takashi Iwai , alsa-devel@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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 Cc: Takashi Iwai Cc: alsa-devel@alsa-project.org Signed-off-by: Jason A. Donenfeld --- sound/pci/rme9652/hdsp.c | 26 +++++++++++++------------- sound/pci/rme9652/rme9652.c | 22 +++++++++++----------- 2 files changed, 24 insertions(+), 24 deletions(-) diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c index dcc43a81ae0e..902508e4fecc 100644 --- a/sound/pci/rme9652/hdsp.c +++ b/sound/pci/rme9652/hdsp.c @@ -433,7 +433,7 @@ struct hdsp_midi { struct snd_rawmidi *rmidi; struct snd_rawmidi_substream *input; struct snd_rawmidi_substream *output; - char istimer; /* timer in use */ + bool istimer; /* timer in use */ struct timer_list timer; spinlock_t lock; int pending; @@ -480,7 +480,7 @@ struct hdsp { pid_t playback_pid; int running; int system_sample_rate; - const char *channel_map; + const signed char *channel_map; int dev; int irq; unsigned long port; @@ -502,7 +502,7 @@ struct hdsp { where the data for that channel can be read/written from/to. */ -static const char channel_map_df_ss[HDSP_MAX_CHANNELS] = { +static const signed char channel_map_df_ss[HDSP_MAX_CHANNELS] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }; @@ -517,7 +517,7 @@ static const char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */ -1, -1, -1, -1, -1, -1, -1, -1 }; -static const char channel_map_ds[HDSP_MAX_CHANNELS] = { +static const signed char channel_map_ds[HDSP_MAX_CHANNELS] = { /* ADAT channels are remapped */ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, /* channels 12 and 13 are S/PDIF */ @@ -526,7 +526,7 @@ static const char channel_map_ds[HDSP_MAX_CHANNELS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; -static const char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = { +static const signed char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = { /* ADAT channels */ 0, 1, 2, 3, 4, 5, 6, 7, /* SPDIF */ @@ -540,7 +540,7 @@ static const char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = { -1, -1 }; -static const char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = { +static const signed char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = { /* ADAT */ 1, 3, 5, 7, /* SPDIF */ @@ -554,7 +554,7 @@ static const char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = { -1, -1, -1, -1, -1, -1 }; -static const char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = { +static const signed char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = { /* ADAT is disabled in this mode */ /* SPDIF */ 8, 9, @@ -3939,7 +3939,7 @@ static snd_pcm_uframes_t snd_hdsp_hw_pointer(struct snd_pcm_substream *substream return hdsp_hw_pointer(hdsp); } -static char *hdsp_channel_buffer_location(struct hdsp *hdsp, +static signed char *hdsp_channel_buffer_location(struct hdsp *hdsp, int stream, int channel) @@ -3964,7 +3964,7 @@ static int snd_hdsp_playback_copy(struct snd_pcm_substream *substream, void __user *src, unsigned long count) { struct hdsp *hdsp = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES)) return -EINVAL; @@ -3982,7 +3982,7 @@ static int snd_hdsp_playback_copy_kernel(struct snd_pcm_substream *substream, void *src, unsigned long count) { struct hdsp *hdsp = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel); if (snd_BUG_ON(!channel_buf)) @@ -3996,7 +3996,7 @@ static int snd_hdsp_capture_copy(struct snd_pcm_substream *substream, void __user *dst, unsigned long count) { struct hdsp *hdsp = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES)) return -EINVAL; @@ -4014,7 +4014,7 @@ static int snd_hdsp_capture_copy_kernel(struct snd_pcm_substream *substream, void *dst, unsigned long count) { struct hdsp *hdsp = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel); if (snd_BUG_ON(!channel_buf)) @@ -4028,7 +4028,7 @@ static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream, unsigned long count) { struct hdsp *hdsp = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel); if (snd_BUG_ON(!channel_buf)) diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c index 1d614fe89a6a..e7c320afefe8 100644 --- a/sound/pci/rme9652/rme9652.c +++ b/sound/pci/rme9652/rme9652.c @@ -230,7 +230,7 @@ struct snd_rme9652 { int last_spdif_sample_rate; /* so that we can catch externally ... */ int last_adat_sample_rate; /* ... induced rate changes */ - const char *channel_map; + const signed char *channel_map; struct snd_card *card; struct snd_pcm *pcm; @@ -247,12 +247,12 @@ struct snd_rme9652 { where the data for that channel can be read/written from/to. */ -static const char channel_map_9652_ss[26] = { +static const signed char channel_map_9652_ss[26] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }; -static const char channel_map_9636_ss[26] = { +static const signed char channel_map_9636_ss[26] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* channels 16 and 17 are S/PDIF */ 24, 25, @@ -260,7 +260,7 @@ static const char channel_map_9636_ss[26] = { -1, -1, -1, -1, -1, -1, -1, -1 }; -static const char channel_map_9652_ds[26] = { +static const signed char channel_map_9652_ds[26] = { /* ADAT channels are remapped */ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, /* channels 12 and 13 are S/PDIF */ @@ -269,7 +269,7 @@ static const char channel_map_9652_ds[26] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; -static const char channel_map_9636_ds[26] = { +static const signed char channel_map_9636_ds[26] = { /* ADAT channels are remapped */ 1, 3, 5, 7, 9, 11, 13, 15, /* channels 8 and 9 are S/PDIF */ @@ -1819,7 +1819,7 @@ static snd_pcm_uframes_t snd_rme9652_hw_pointer(struct snd_pcm_substream *substr return rme9652_hw_pointer(rme9652); } -static char *rme9652_channel_buffer_location(struct snd_rme9652 *rme9652, +static signed char *rme9652_channel_buffer_location(struct snd_rme9652 *rme9652, int stream, int channel) @@ -1847,7 +1847,7 @@ static int snd_rme9652_playback_copy(struct snd_pcm_substream *substream, void __user *src, unsigned long count) { struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; if (snd_BUG_ON(pos + count > RME9652_CHANNEL_BUFFER_BYTES)) return -EINVAL; @@ -1867,7 +1867,7 @@ static int snd_rme9652_playback_copy_kernel(struct snd_pcm_substream *substream, void *src, unsigned long count) { struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; channel_buf = rme9652_channel_buffer_location(rme9652, substream->pstr->stream, @@ -1883,7 +1883,7 @@ static int snd_rme9652_capture_copy(struct snd_pcm_substream *substream, void __user *dst, unsigned long count) { struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; if (snd_BUG_ON(pos + count > RME9652_CHANNEL_BUFFER_BYTES)) return -EINVAL; @@ -1903,7 +1903,7 @@ static int snd_rme9652_capture_copy_kernel(struct snd_pcm_substream *substream, void *dst, unsigned long count) { struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; channel_buf = rme9652_channel_buffer_location(rme9652, substream->pstr->stream, @@ -1919,7 +1919,7 @@ static int snd_rme9652_hw_silence(struct snd_pcm_substream *substream, unsigned long count) { struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream); - char *channel_buf; + signed char *channel_buf; channel_buf = rme9652_channel_buffer_location (rme9652, substream->pstr->stream,