ALSA: pcm: More helper macros for reducing snd_pcm_format_t cast

snd_pcm_format_t is a strong-typed integer and requires the explicit
cast with __force if converted or compared with a normal integer
value.  Since most of use cases do iterate over all formats and test /
set the mask, provide a couple of new helper macros that do the
explicit cast.

Link: https://lore.kernel.org/r/20200206163945.6797-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h
index 661450a2095b..36f94735d23d 100644
--- a/include/sound/pcm_params.h
+++ b/include/sound/pcm_params.h
@@ -133,6 +133,13 @@ static inline int snd_mask_test(const struct snd_mask *mask, unsigned int val)
 	return mask->bits[MASK_OFS(val)] & MASK_BIT(val);
 }
 
+/* Most of drivers need only this one */
+static inline int snd_mask_test_format(const struct snd_mask *mask,
+				       snd_pcm_format_t format)
+{
+	return snd_mask_test(mask, (__force unsigned int)format);
+}
+
 static inline int snd_mask_single(const struct snd_mask *mask)
 {
 	int i, c = 0;