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Subject[PATCH AUTOSEL 4.18 116/131] ALSA: xen: Use standard pcm_format_to_bits() for ALSA format bits
Date
From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 3ac14b3960185d4c8a2f14b84042aa1aa8531d88 ]

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