Running sparse on fsl_qmc_audio (make C=1) raises the following warnings: fsl_qmc_audio.c:387:26: warning: restricted snd_pcm_format_t degrades to integer fsl_qmc_audio.c:389:59: warning: incorrect type in argument 1 (different base types) fsl_qmc_audio.c:389:59: expected restricted snd_pcm_format_t [usertype] format fsl_qmc_audio.c:389:59: got unsigned int [assigned] i fsl_qmc_audio.c:564:26: warning: restricted snd_pcm_format_t degrades to integer fsl_qmc_audio.c:569:50: warning: incorrect type in argument 1 (different base types) fsl_qmc_audio.c:569:50: expected restricted snd_pcm_format_t [usertype] format fsl_qmc_audio.c:569:50: got int [assigned] i fsl_qmc_audio.c:573:62: warning: incorrect type in argument 1 (different base types) fsl_qmc_audio.c:573:62: expected restricted snd_pcm_format_t [usertype] format fsl_qmc_audio.c:573:62: got int [assigned] i
These warnings are due to snd_pcm_format_t values handling done in the driver. Some macros and functions exist to handle safely these values.
Use dedicated macros and functions to remove these warnings.
Fixes: 075c7125b11c ("ASoC: fsl: Add support for QMC audio") Signed-off-by: Herve Codina herve.codina@bootlin.com --- sound/soc/fsl/fsl_qmc_audio.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/sound/soc/fsl/fsl_qmc_audio.c b/sound/soc/fsl/fsl_qmc_audio.c index 7cbb8e4758cc..56d6b0b039a2 100644 --- a/sound/soc/fsl/fsl_qmc_audio.c +++ b/sound/soc/fsl/fsl_qmc_audio.c @@ -372,8 +372,8 @@ static int qmc_dai_hw_rule_format_by_channels(struct qmc_dai *qmc_dai, struct snd_mask *f_old = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); unsigned int channels = params_channels(params); unsigned int slot_width; + snd_pcm_format_t format; struct snd_mask f_new; - unsigned int i;
if (!channels || channels > nb_ts) { dev_err(qmc_dai->dev, "channels %u not supported\n", @@ -384,10 +384,10 @@ static int qmc_dai_hw_rule_format_by_channels(struct qmc_dai *qmc_dai, slot_width = (nb_ts / channels) * 8;
snd_mask_none(&f_new); - for (i = 0; i <= SNDRV_PCM_FORMAT_LAST; i++) { - if (snd_mask_test(f_old, i)) { - if (snd_pcm_format_physical_width(i) <= slot_width) - snd_mask_set(&f_new, i); + pcm_for_each_format(format) { + if (snd_mask_test_format(f_old, format)) { + if (snd_pcm_format_physical_width(format) <= slot_width) + snd_mask_set_format(&f_new, format); } }
@@ -551,26 +551,26 @@ static const struct snd_soc_dai_ops qmc_dai_ops = {
static u64 qmc_audio_formats(u8 nb_ts) { - u64 formats; - unsigned int chan_width; unsigned int format_width; - int i; + unsigned int chan_width; + snd_pcm_format_t format; + u64 formats_mask;
if (!nb_ts) return 0;
- formats = 0; + formats_mask = 0; chan_width = nb_ts * 8; - for (i = 0; i <= SNDRV_PCM_FORMAT_LAST; i++) { + pcm_for_each_format(format) { /* * Support format other than little-endian (ie big-endian or * without endianness such as 8bit formats) */ - if (snd_pcm_format_little_endian(i) == 1) + if (snd_pcm_format_little_endian(format) == 1) continue;
/* Support physical width multiple of 8bit */ - format_width = snd_pcm_format_physical_width(i); + format_width = snd_pcm_format_physical_width(format); if (format_width == 0 || format_width % 8) continue;
@@ -581,9 +581,9 @@ static u64 qmc_audio_formats(u8 nb_ts) if (format_width > chan_width || chan_width % format_width) continue;
- formats |= (1ULL << i); + formats_mask |= pcm_format_to_bits(format); } - return formats; + return formats_mask; }
static int qmc_audio_dai_parse(struct qmc_audio *qmc_audio, struct device_node *np,