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authorLars-Peter Clausen <lars@metafoo.de>2020-12-23 20:22:15 +0300
committerTakashi Iwai <tiwai@suse.de>2020-12-25 11:11:48 +0300
commite02e198e88f4c3bd9a56b031d46895a191919c4e (patch)
treea0c10d4d6fb2be6a8f6c0b3496c3e26920da88cb /sound/pci/bt87x.c
parentaf787b2e837fb6003886c151f8cea0484fcd381d (diff)
downloadlinux-e02e198e88f4c3bd9a56b031d46895a191919c4e.tar.xz
ALSA: bt87x: Use DIV_ROUND_UP() instead of open-coding it
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> @r1@ expression x; constant C1; constant C2; @@ (x + C1) / C2 @script:python@ C1 << r1.C1; C2 << r1.C2; @@ try: if int(C1) != int(C2) - 1: cocci.include_match(False) except: cocci.include_match(False) @@ expression r1.x; constant r1.C1; constant r1.C2; @@ -(((x) + C1) / C2) +DIV_ROUND_UP(x, C2) // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20201223172229.781-4-lars@metafoo.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/bt87x.c')
-rw-r--r--sound/pci/bt87x.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index 54cb223caa2f..cf9f8d80a0b6 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -327,7 +327,8 @@ static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
current_block = chip->current_line * 16 / chip->lines;
irq_block = status >> INT_RISCS_SHIFT;
if (current_block != irq_block)
- chip->current_line = (irq_block * chip->lines + 15) / 16;
+ chip->current_line = DIV_ROUND_UP(irq_block * chip->lines,
+ 16);
snd_pcm_period_elapsed(chip->substream);
}