From 0b62834e73e332fea76a340d62aaf50c732b17e0 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 25 Jul 2018 23:17:17 +0200
Subject: [PATCH] ALSA: pcm: Add snd_mask_set_format() helper for standard
usages
Many drivers calling snd_mask_set() need to do ugly cast with __force
for shutting up the sparse warnings. Actually almost all of them are
about setting the format, so it's far better to provide a common
helper snd_mask_set_format() to pass SNDRV_PCM_FORMAT_* directly
without the cast.
There are a few other calls of snd_mask_set(), but they are in the PCM
core code, so we leave them for now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/pcm_params.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h
index c704357775fc4..2dd37cada7c08 100644
--- a/include/sound/pcm_params.h
+++ b/include/sound/pcm_params.h
@@ -87,6 +87,13 @@ static inline void snd_mask_set(struct snd_mask *mask, unsigned int val)
mask->bits[MASK_OFS(val)] |= MASK_BIT(val);
}
+/* Most of drivers need only this one */
+static inline void snd_mask_set_format(struct snd_mask *mask,
+ snd_pcm_format_t format)
+{
+ snd_mask_set(mask, (__force unsigned int)format);
+}
+
static inline void snd_mask_reset(struct snd_mask *mask, unsigned int val)
{
mask->bits[MASK_OFS(val)] &= ~MASK_BIT(val);
@@ -369,8 +376,7 @@ static inline int params_physical_width(const struct snd_pcm_hw_params *p)
static inline void
params_set_format(struct snd_pcm_hw_params *p, snd_pcm_format_t fmt)
{
- snd_mask_set(hw_param_mask(p, SNDRV_PCM_HW_PARAM_FORMAT),
- (__force int)fmt);
+ snd_mask_set_format(hw_param_mask(p, SNDRV_PCM_HW_PARAM_FORMAT), fmt);
}
#endif /* __SOUND_PCM_PARAMS_H */
--
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