From: "Jason A. Donenfeld" <Jason@zx2c4.com> To: linux-kernel@vger.kernel.org Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>, Takashi Iwai <tiwai@suse.com>, alsa-devel@alsa-project.org Subject: [PATCH] ALSA: au88x0: use explicitly signed char Date: Mon, 24 Oct 2022 18:29:29 +0200 [thread overview] Message-ID: <20221024162929.536004-1-Jason@zx2c4.com> (raw) 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/au88x0/au88x0_core.c:2029 vortex_adb_checkinout() warn: signedness bug returning '(-22)' sound/pci/au88x0/au88x0_core.c:2046 vortex_adb_checkinout() warn: signedness bug returning '(-12)' sound/pci/au88x0/au88x0_core.c:2125 vortex_adb_allocroute() warn: 'vortex_adb_checkinout(vortex, (0), en, 0)' is unsigned sound/pci/au88x0/au88x0_core.c:2170 vortex_adb_allocroute() warn: 'vortex_adb_checkinout(vortex, stream->resources, en, 4)' is unsigned As well, since one function returns errnos, return an `int` rather than a `signed char`. Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> --- sound/pci/au88x0/au88x0.h | 6 +++--- sound/pci/au88x0/au88x0_core.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h index 0aa7af049b1b..6cbb2bc4a048 100644 --- a/sound/pci/au88x0/au88x0.h +++ b/sound/pci/au88x0/au88x0.h @@ -141,7 +141,7 @@ struct snd_vortex { #ifndef CHIP_AU8810 stream_t dma_wt[NR_WT]; wt_voice_t wt_voice[NR_WT]; /* WT register cache. */ - char mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */ + s8 mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */ #endif /* Global resources */ @@ -235,8 +235,8 @@ static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v); static void vortex_connect_default(vortex_t * vortex, int en); static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type, int subdev); -static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, - int restype); +static int vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, + int restype); #ifndef CHIP_AU8810 static int vortex_wt_allocroute(vortex_t * vortex, int dma, int nr_ch); static void vortex_wt_connect(vortex_t * vortex, int en); diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c index 2ed5100b8cae..f217c02dfdfa 100644 --- a/sound/pci/au88x0/au88x0_core.c +++ b/sound/pci/au88x0/au88x0_core.c @@ -1998,7 +1998,7 @@ static const int resnum[VORTEX_RESOURCE_LAST] = out: Mean checkout if != 0. Else mean Checkin resource. restype: Indicates type of resource to be checked in or out. */ -static char +static int vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype) { int i, qty = resnum[restype], resinuse = 0; -- 2.38.1
WARNING: multiple messages have this Message-ID (diff)
From: "Jason A. Donenfeld" <Jason@zx2c4.com> To: linux-kernel@vger.kernel.org Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>, Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>, alsa-devel@alsa-project.org Subject: [PATCH] ALSA: au88x0: use explicitly signed char Date: Mon, 24 Oct 2022 18:29:29 +0200 [thread overview] Message-ID: <20221024162929.536004-1-Jason@zx2c4.com> (raw) 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/au88x0/au88x0_core.c:2029 vortex_adb_checkinout() warn: signedness bug returning '(-22)' sound/pci/au88x0/au88x0_core.c:2046 vortex_adb_checkinout() warn: signedness bug returning '(-12)' sound/pci/au88x0/au88x0_core.c:2125 vortex_adb_allocroute() warn: 'vortex_adb_checkinout(vortex, (0), en, 0)' is unsigned sound/pci/au88x0/au88x0_core.c:2170 vortex_adb_allocroute() warn: 'vortex_adb_checkinout(vortex, stream->resources, en, 4)' is unsigned As well, since one function returns errnos, return an `int` rather than a `signed char`. Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> --- sound/pci/au88x0/au88x0.h | 6 +++--- sound/pci/au88x0/au88x0_core.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h index 0aa7af049b1b..6cbb2bc4a048 100644 --- a/sound/pci/au88x0/au88x0.h +++ b/sound/pci/au88x0/au88x0.h @@ -141,7 +141,7 @@ struct snd_vortex { #ifndef CHIP_AU8810 stream_t dma_wt[NR_WT]; wt_voice_t wt_voice[NR_WT]; /* WT register cache. */ - char mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */ + s8 mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */ #endif /* Global resources */ @@ -235,8 +235,8 @@ static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v); static void vortex_connect_default(vortex_t * vortex, int en); static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type, int subdev); -static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, - int restype); +static int vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, + int restype); #ifndef CHIP_AU8810 static int vortex_wt_allocroute(vortex_t * vortex, int dma, int nr_ch); static void vortex_wt_connect(vortex_t * vortex, int en); diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c index 2ed5100b8cae..f217c02dfdfa 100644 --- a/sound/pci/au88x0/au88x0_core.c +++ b/sound/pci/au88x0/au88x0_core.c @@ -1998,7 +1998,7 @@ static const int resnum[VORTEX_RESOURCE_LAST] = out: Mean checkout if != 0. Else mean Checkin resource. restype: Indicates type of resource to be checked in or out. */ -static char +static int vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype) { int i, qty = resnum[restype], resinuse = 0; -- 2.38.1
next reply other threads:[~2022-10-24 16:30 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-24 16:29 Jason A. Donenfeld [this message] 2022-10-24 16:29 ` [PATCH] ALSA: au88x0: use explicitly signed char Jason A. Donenfeld 2022-10-24 21:11 ` Al Viro 2022-10-24 21:11 ` Al Viro 2022-10-24 23:59 ` Jason A. Donenfeld 2022-10-24 23:59 ` Jason A. Donenfeld 2022-10-25 6:21 ` Takashi Iwai 2022-10-25 6:21 ` Takashi Iwai
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