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Subject[PATCH AUTOSEL 4.18 118/131] ALSA: asihpi: Fix PCM format notations
Date
From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit a91a0e774984aa57090c39dc3269a812417737ed ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
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;
--
2.17.1
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