[alsa-devel] [PATCH 00/10] ALSA: yet more PCM format type conversion fixes
Hi,
this is a series of similar fixes as the previous patchset for ASoC, covering other ALSA drivers to deal with PCM format type properly.
Takashi
===
Takashi Iwai (10): ALSA: hda: Fix implicit PCM format type conversion ALSA: riptide: Fix PCM format type conversion ALSA: pcm: Fix sparse warning wrt PCM format type ALSA: ad1816a: Fix sparse warning wrt PCM format type ALSA: au88x0: Fix sparse warning wrt PCM format type ALSA: asihpi: Fix PCM format notations ALSA: wss: Fix sparse warning wrt PCM format type ALSA: sb: Fix PCM format bit calculation ALSA: sb: Fix sparse warning wrt PCM format type ALSA: xen: Use standard pcm_format_to_bits() for ALSA format bits
include/sound/hdaudio.h | 3 ++- include/sound/sb16_csp.h | 2 +- sound/core/oss/pcm_oss.c | 2 +- sound/hda/hdac_device.c | 2 +- sound/isa/ad1816a/ad1816a_lib.c | 3 ++- sound/isa/sb/sb16_csp.c | 6 +++--- sound/isa/sb/sb16_main.c | 9 ++++++--- sound/isa/wss/wss_lib.c | 2 +- sound/pci/asihpi/asihpi.c | 24 +++++++++++++----------- sound/pci/au88x0/au88x0.h | 2 +- sound/pci/au88x0/au88x0_core.c | 2 +- sound/pci/riptide/riptide.c | 2 +- sound/xen/xen_snd_front_alsa.c | 4 ++-- 13 files changed, 35 insertions(+), 28 deletions(-)
The PCM format type is defined with __bitwise, hence it can't be passed as integer but needs an explicit cast. In this patch, instead of the messy cast flood, define the format argument of snd_hdac_calc_stream_format() to be the proper snd_pcm_format_t type.
This fixes sparse warnings like: sound/hda/hdac_device.c:760:38: warning: incorrect type in argument 1 (different base types)
Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/hdaudio.h | 3 ++- sound/hda/hdac_device.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index 8305e7971035..6f1e1f3b3063 100644 --- a/include/sound/hdaudio.h +++ b/include/sound/hdaudio.h @@ -11,6 +11,7 @@ #include <linux/pm_runtime.h> #include <linux/timecounter.h> #include <sound/core.h> +#include <sound/pcm.h> #include <sound/memalloc.h> #include <sound/hda_verbs.h> #include <drm/i915_component.h> @@ -133,7 +134,7 @@ int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid, hda_nid_t *start_id); unsigned int snd_hdac_calc_stream_format(unsigned int rate, unsigned int channels, - unsigned int format, + snd_pcm_format_t format, unsigned int maxbps, unsigned short spdif_ctls); int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid, diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 7ba100bb1c3f..dbf02a3a8d2f 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -738,7 +738,7 @@ static struct hda_rate_tbl rate_bits[] = { */ unsigned int snd_hdac_calc_stream_format(unsigned int rate, unsigned int channels, - unsigned int format, + snd_pcm_format_t format, unsigned int maxbps, unsigned short spdif_ctls) {
The PCM format type is with __bitwise, hence it needs to be explicitly declared as snd_pcm_format_t, as warned by sparse: sound/pci/riptide/riptide.c:1028:34: warning: incorrect type in argument 1 (different base types) sound/pci/riptide/riptide.c:1028:34: expected restricted snd_pcm_format_t [usertype] format sound/pci/riptide/riptide.c:1028:34: got unsigned char [unsigned] format
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/riptide/riptide.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c index 44f3b48d47b1..9d2b2ef15c6b 100644 --- a/sound/pci/riptide/riptide.c +++ b/sound/pci/riptide/riptide.c @@ -1017,7 +1017,7 @@ getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate) static int setsampleformat(struct cmdif *cif, unsigned char mixer, unsigned char id, - unsigned char channels, unsigned char format) + unsigned char channels, snd_pcm_format_t format) { unsigned char w, ch, sig, order;
The PCM format type is with __bitwise, hence it needs the explicit cast with __force. It's ugly, but there is a reason for that cost...
This fixes the sparse warning: sound/core/oss/pcm_oss.c:1854:55: warning: incorrect type in argument 1 (different base types)
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/oss/pcm_oss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 905a53c1cde5..f8d4a419f3af 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -1851,7 +1851,7 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file) format_mask = hw_param_mask_c(params, SNDRV_PCM_HW_PARAM_FORMAT); for (fmt = 0; fmt < 32; ++fmt) { if (snd_mask_test(format_mask, fmt)) { - int f = snd_pcm_oss_format_to(fmt); + int f = snd_pcm_oss_format_to((__force snd_pcm_format_t)fmt); if (f >= 0) formats |= f; }
The PCM format type is with __bitwise, and it can't be converted from integer implicitly. Instead of an ugly cast, declare the function argument of snd_ad1816a_get_format() with the proper snd_pcm_format_t type.
This fixes the sparse warning like: sound/isa/ad1816a/ad1816a_lib.c:93:14: warning: restricted snd_pcm_format_t degrades to integer
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/isa/ad1816a/ad1816a_lib.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c index 923201414469..fba6d22f7f4b 100644 --- a/sound/isa/ad1816a/ad1816a_lib.c +++ b/sound/isa/ad1816a/ad1816a_lib.c @@ -85,7 +85,8 @@ static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip, - unsigned int format, int channels) + snd_pcm_format_t format, + int channels) { unsigned char retval = AD1816A_FMT_LINEAR_8;
The PCM format type is with __bitwise, and it can't be converted from integer implicitly. Instead of an ugly cast, declare the function argument of vortex_alsafmt_aspfmt() with the proper snd_pcm_format_t type.
This fixes the sparse warning like: sound/pci/au88x0/au88x0_core.c:2778:14: warning: restricted snd_pcm_format_t degrades to integer
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/au88x0/au88x0.h | 2 +- sound/pci/au88x0/au88x0_core.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h index bcc648bf6478..e3e31f07d766 100644 --- a/sound/pci/au88x0/au88x0.h +++ b/sound/pci/au88x0/au88x0.h @@ -241,7 +241,7 @@ static int vortex_core_init(vortex_t * card); static int vortex_core_shutdown(vortex_t * card); static void vortex_enable_int(vortex_t * card); static irqreturn_t vortex_interrupt(int irq, void *dev_id); -static int vortex_alsafmt_aspfmt(int alsafmt, vortex_t *v); +static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v);
/* Connection stuff. */ static void vortex_connect_default(vortex_t * vortex, int en); diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c index 4083c8b01619..2e5b460a847c 100644 --- a/sound/pci/au88x0/au88x0_core.c +++ b/sound/pci/au88x0/au88x0_core.c @@ -2770,7 +2770,7 @@ static int vortex_core_shutdown(vortex_t * vortex)
/* Alsa support. */
-static int vortex_alsafmt_aspfmt(int alsafmt, vortex_t *v) +static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v) { int fmt;
asihpi driver treats -1 as an own invalid PCM format, but this needs a proper cast with __force prefix since PCM format type is __bitwise. Define a constant with the proper type and use it allover.
This fixes sparse warnings like: sound/pci/asihpi/asihpi.c:315:9: warning: incorrect type in initializer (different base types)
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/asihpi/asihpi.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index 64e0961f93ba..a31fe1550903 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -311,27 +311,29 @@ static void print_hwparams(struct snd_pcm_substream *substream, snd_pcm_format_width(params_format(p)) / 8); }
+#define INVALID_FORMAT (__force snd_pcm_format_t)(-1) + static snd_pcm_format_t hpi_to_alsa_formats[] = { - -1, /* INVALID */ + INVALID_FORMAT, /* INVALID */ SNDRV_PCM_FORMAT_U8, /* HPI_FORMAT_PCM8_UNSIGNED 1 */ SNDRV_PCM_FORMAT_S16, /* HPI_FORMAT_PCM16_SIGNED 2 */ - -1, /* HPI_FORMAT_MPEG_L1 3 */ + INVALID_FORMAT, /* HPI_FORMAT_MPEG_L1 3 */ SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L2 4 */ SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L3 5 */ - -1, /* HPI_FORMAT_DOLBY_AC2 6 */ - -1, /* HPI_FORMAT_DOLBY_AC3 7 */ + INVALID_FORMAT, /* HPI_FORMAT_DOLBY_AC2 6 */ + INVALID_FORMAT, /* HPI_FORMAT_DOLBY_AC3 7 */ SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN 8 */ - -1, /* HPI_FORMAT_AA_TAGIT1_HITS 9 */ - -1, /* HPI_FORMAT_AA_TAGIT1_INSERTS 10 */ + INVALID_FORMAT, /* HPI_FORMAT_AA_TAGIT1_HITS 9 */ + INVALID_FORMAT, /* HPI_FORMAT_AA_TAGIT1_INSERTS 10 */ SNDRV_PCM_FORMAT_S32, /* HPI_FORMAT_PCM32_SIGNED 11 */ - -1, /* HPI_FORMAT_RAW_BITSTREAM 12 */ - -1, /* HPI_FORMAT_AA_TAGIT1_HITS_EX1 13 */ + INVALID_FORMAT, /* HPI_FORMAT_RAW_BITSTREAM 12 */ + INVALID_FORMAT, /* HPI_FORMAT_AA_TAGIT1_HITS_EX1 13 */ SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT 14 */ #if 1 /* ALSA can't handle 3 byte sample size together with power-of-2 * constraint on buffer_bytes, so disable this format */ - -1 + INVALID_FORMAT #else /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */ #endif @@ -1023,7 +1025,7 @@ static u64 snd_card_asihpi_playback_formats(struct snd_card_asihpi *asihpi, format, sample_rate, 128000, 0); if (!err) err = hpi_outstream_query_format(h_stream, &hpi_format); - if (!err && (hpi_to_alsa_formats[format] != -1)) + if (!err && (hpi_to_alsa_formats[format] != INVALID_FORMAT)) formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]); } return formats; @@ -1205,7 +1207,7 @@ static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi, format, sample_rate, 128000, 0); if (!err) err = hpi_instream_query_format(h_stream, &hpi_format); - if (!err && (hpi_to_alsa_formats[format] != -1)) + if (!err && (hpi_to_alsa_formats[format] != INVALID_FORMAT)) formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]); } return formats;
The PCM format type is with __bitwise, and it can't be converted from integer implicitly. Instead of an ugly cast, declare the function argument of snd_wss_get_format() with the proper snd_pcm_format_t type.
This fixes the sparse warnings like: sound/isa/wss/wss_lib.c:551:14: warning: restricted snd_pcm_format_t degrades to integer
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/isa/wss/wss_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c index 8a852042a066..d23cc8abe1ef 100644 --- a/sound/isa/wss/wss_lib.c +++ b/sound/isa/wss/wss_lib.c @@ -541,7 +541,7 @@ static unsigned char snd_wss_get_rate(unsigned int rate) }
static unsigned char snd_wss_get_format(struct snd_wss *chip, - int format, + snd_pcm_format_t format, int channels) { unsigned char rformat;
The PCM format type in snd_pcm_format_t can't be treated as integer implicitly since it's with __bitwise. We have already a helper function to get the bit index of the given type, and use it in each place instead.
This fixes sparse warnings like: sound/isa/sb/sb16_main.c:61:44: warning: restricted snd_pcm_format_t degrades to integer
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/isa/sb/sb16_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c index 3e39ba220c39..11ed4a6e5bf1 100644 --- a/sound/isa/sb/sb16_main.c +++ b/sound/isa/sb/sb16_main.c @@ -49,6 +49,9 @@ MODULE_AUTHOR("Jaroslav Kysela perex@perex.cz"); MODULE_DESCRIPTION("Routines for control of 16-bit SoundBlaster cards and clones"); MODULE_LICENSE("GPL");
+#define runtime_format_bits(runtime) \ + ((unsigned int)pcm_format_to_bits((runtime)->format)) + #ifdef CONFIG_SND_SB16_CSP static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_runtime *runtime) { @@ -58,7 +61,7 @@ static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_ru if (csp->running & SNDRV_SB_CSP_ST_LOADED) { /* manually loaded codec */ if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) && - ((1U << runtime->format) == csp->acc_format)) { + (runtime_format_bits(runtime) == csp->acc_format)) { /* Supported runtime PCM format for playback */ if (csp->ops.csp_use(csp) == 0) { /* If CSP was successfully acquired */ @@ -66,7 +69,7 @@ static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_ru } } else if ((csp->mode & SNDRV_SB_CSP_MODE_QSOUND) && (csp->q_enabled)) { /* QSound decoder is loaded and enabled */ - if ((1 << runtime->format) & (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | + if (runtime_format_bits(runtime) & (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE)) { /* Only for simple PCM formats */ if (csp->ops.csp_use(csp) == 0) { @@ -106,7 +109,7 @@ static void snd_sb16_csp_capture_prepare(struct snd_sb *chip, struct snd_pcm_run if (csp->running & SNDRV_SB_CSP_ST_LOADED) { /* manually loaded codec */ if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_READ) && - ((1U << runtime->format) == csp->acc_format)) { + (runtime_format_bits(runtime) == csp->acc_format)) { /* Supported runtime PCM format for capture */ if (csp->ops.csp_use(csp) == 0) { /* If CSP was successfully acquired */
The PCM format type is with __bitwise, and it can't be converted from integer implicitly. Instead of an ugly cast, declare the function argument of snd_sb_csp_autoload() with the proper snd_pcm_format_t type.
This fixes the sparse warnings like: sound/isa/sb/sb16_csp.c:743:22: warning: restricted snd_pcm_format_t degrades to integer
Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/sb16_csp.h | 2 +- sound/isa/sb/sb16_csp.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h index c7c7788005e4..7817e88bd08d 100644 --- a/include/sound/sb16_csp.h +++ b/include/sound/sb16_csp.h @@ -46,7 +46,7 @@ enum { struct snd_sb_csp_ops { int (*csp_use) (struct snd_sb_csp * p); int (*csp_unuse) (struct snd_sb_csp * p); - int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode); + int (*csp_autoload) (struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels); int (*csp_stop) (struct snd_sb_csp * p); int (*csp_qsound_transfer) (struct snd_sb_csp * p); diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c index fa5780bb0c68..2210e7c72787 100644 --- a/sound/isa/sb/sb16_csp.c +++ b/sound/isa/sb/sb16_csp.c @@ -93,7 +93,7 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p, struct snd_sb_csp_microcode __user * code); static int snd_sb_csp_unload(struct snd_sb_csp * p); static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); -static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode); +static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); static int snd_sb_csp_check_version(struct snd_sb_csp * p);
static int snd_sb_csp_use(struct snd_sb_csp * p); @@ -726,7 +726,7 @@ static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags) * autoload hardware codec if necessary * return 0 if CSP is loaded and ready to run (p->running != 0) */ -static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode) +static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode) { unsigned long flags; int err = 0; @@ -736,7 +736,7 @@ static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec return -EBUSY;
/* autoload microcode only if requested hardware codec is not already loaded */ - if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { + if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { p->running = SNDRV_SB_CSP_ST_AUTO; } else { switch (pcm_sfmt) {
The open codes with the bit shift in xen_snd_front_alsa.c give sparse warnings as the PCM format type is with __bitwise. There is already a standard macro to get the format bits, so let's use it instead.
This fixes sparse warnings like: sound/xen/xen_snd_front_alsa.c:191:47: warning: restricted snd_pcm_format_t degrades to integer
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/xen/xen_snd_front_alsa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/xen/xen_snd_front_alsa.c b/sound/xen/xen_snd_front_alsa.c index 5a2bd70a2fa1..129180e17db1 100644 --- a/sound/xen/xen_snd_front_alsa.c +++ b/sound/xen/xen_snd_front_alsa.c @@ -188,7 +188,7 @@ static u64 to_sndif_formats_mask(u64 alsa_formats)
mask = 0; for (i = 0; i < ARRAY_SIZE(ALSA_SNDIF_FORMATS); i++) - if (1 << ALSA_SNDIF_FORMATS[i].alsa & alsa_formats) + if (pcm_format_to_bits(ALSA_SNDIF_FORMATS[i].alsa) & alsa_formats) mask |= 1 << ALSA_SNDIF_FORMATS[i].sndif;
return mask; @@ -202,7 +202,7 @@ static u64 to_alsa_formats_mask(u64 sndif_formats) mask = 0; for (i = 0; i < ARRAY_SIZE(ALSA_SNDIF_FORMATS); i++) if (1 << ALSA_SNDIF_FORMATS[i].sndif & sndif_formats) - mask |= 1 << ALSA_SNDIF_FORMATS[i].alsa; + mask |= pcm_format_to_bits(ALSA_SNDIF_FORMATS[i].alsa);
return mask; }
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Takashi Iwai