From: Lars-Peter Clausen <lars@metafoo.de>
To: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org, Lars-Peter Clausen <lars@metafoo.de>
Subject: [PATCH 11/18] ALSA: usb: Use DIV_ROUND_UP() instead of open-coding it
Date: Wed, 23 Dec 2020 18:22:22 +0100 [thread overview]
Message-ID: <20201223172229.781-11-lars@metafoo.de> (raw)
In-Reply-To: <20201223172229.781-1-lars@metafoo.de>
Use DIV_ROUND_UP() instead of open-coding it. This documents intent
and makes it more clear what is going on for the casual reviewer.
Generated using the following the Coccinelle semantic patch.
// <smpl>
@@
expression x, y;
@@
-(((x) + (y) - 1) / (y))
+DIV_ROUND_UP(x, y)
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
sound/usb/mixer.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 12b15ed59eaa..412fcd817ecc 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -254,7 +254,7 @@ static int get_relative_value(struct usb_mixer_elem_info *cval, int val)
if (val < cval->min)
return 0;
else if (val >= cval->max)
- return (cval->max - cval->min + cval->res - 1) / cval->res;
+ return DIV_ROUND_UP(cval->max - cval->min, cval->res);
else
return (val - cval->min) / cval->res;
}
@@ -1338,7 +1338,7 @@ static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol,
}
uinfo->value.integer.min = 0;
uinfo->value.integer.max =
- (cval->max - cval->min + cval->res - 1) / cval->res;
+ DIV_ROUND_UP(cval->max - cval->min, cval->res);
}
return 0;
}
--
2.20.1
next prev parent reply other threads:[~2020-12-23 17:48 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-23 17:22 [PATCH 01/18] ALSA: core: Use DIV_ROUND_UP() instead of open-coding it Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 02/18] ALSA: aloop: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 03/18] ALSA: asihpi: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 04/18] ALSA: bt87x: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 05/18] ALSA: cx46xx: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 06/18] ALSA: ctxfi: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 07/18] ALSA: dummy: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 08/18] ALSA: emu10k1: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 09/18] ALSA: hda: Use DIV_ROUND_UP()/roundup() " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 10/18] ALSA: lola: Use DIV_ROUND_UP() " Lars-Peter Clausen
2020-12-23 17:22 ` Lars-Peter Clausen [this message]
2020-12-23 17:22 ` [PATCH 12/18] ALSA: vx: Use roundup() " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 13/18] ALSA: oss: Use DIV_ROUND_CLOSEST() " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 14/18] ALSA: sonicvibes: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 15/18] ALSA: trident: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 16/18] ALSA: ens1370: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 17/18] ALSA: sis7019: " Lars-Peter Clausen
2020-12-23 17:22 ` [PATCH 18/18] ALSA: maestro: " Lars-Peter Clausen
2020-12-25 8:16 ` [PATCH 01/18] ALSA: core: Use DIV_ROUND_UP() " Takashi Iwai
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