linux-kernel - [PATCH AUTOSEL 4.9 55/62] ALSA: ad1816a: Fix sparse warning wrt PCM format type

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Date:   Sun, 2 Sep 2018 13:15:10 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Takashi Iwai <tiwai@...e.de>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.9 55/62] ALSA: ad1816a: Fix sparse warning wrt PCM
 format type

From: Takashi Iwai <tiwai@...e.de>

[ Upstream commit d63f33d3f083bdb3a7c2dfd623f4d811b2a8d772 ]

The PCM format type is with __bitwise, and it can't be converted from
integer implicitly.  Instead of an ugly cast, declare the function
argument of snd_ad1816a_get_format() with the proper snd_pcm_format_t
type.

This fixes the sparse warning like:
  sound/isa/ad1816a/ad1816a_lib.c:93:14: warning: restricted snd_pcm_format_t degrades to integer

Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 sound/isa/ad1816a/ad1816a_lib.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index 5c815f5fb044..099480afa6b9 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -85,7 +85,8 @@ static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
 
 
 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
-					    unsigned int format, int channels)
+					    snd_pcm_format_t format,
+					    int channels)
 {
 	unsigned char retval = AD1816A_FMT_LINEAR_8;
 
-- 
2.17.1