diff options
| author | Lars-Peter Clausen | 2020-12-23 18:22:26 +0100 |
|---|---|---|
| committer | Takashi Iwai | 2020-12-25 09:11:55 +0100 |
| commit | a8667a3f1588bf61f73ac76f8caff3d9dfcf272e (patch) | |
| tree | 38e0afcc259c2b358abf0816631fc4ace0ea9f1f /sound/pci/trident | |
| parent | 4743feb9f43b896b22af93e20307eb62fa1299d3 (diff) | |
ALSA: trident: Use DIV_ROUND_CLOSEST() instead of open-coding it
Use DIV_ROUND_CLOSEST() 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) / 2)) / (y)
+DIV_ROUND_CLOSEST(x, y)
@r1@
expression x;
constant C1;
constant C2;
@@
((x) + C1) / C2
@script:python@
C1 << r1.C1;
C2 << r1.C2;
@@
try:
if int(C1) * 2 != int(C2):
cocci.include_match(False)
except:
cocci.include_match(False)
@@
expression r1.x;
constant r1.C1;
constant r1.C2;
@@
-(((x) + C1) / C2)
+DIV_ROUND_CLOSEST(x, C2)
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20201223172229.781-15-lars@metafoo.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/trident')
| -rw-r--r-- | sound/pci/trident/trident_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c index 6e50376163a2..8d0d0d8335ec 100644 --- a/sound/pci/trident/trident_main.c +++ b/sound/pci/trident/trident_main.c @@ -678,7 +678,7 @@ static unsigned int snd_trident_convert_rate(unsigned int rate) else if (rate == 48000) delta = 0x1000; else - delta = (((rate << 12) + 24000) / 48000) & 0x0000ffff; + delta = DIV_ROUND_CLOSEST(rate << 12, 48000) & 0x0000ffff; return delta; } @@ -1034,7 +1034,7 @@ static int snd_trident_capture_prepare(struct snd_pcm_substream *substream) ESO_bytes++; // Set channel sample rate, 4.12 format - val = (((unsigned int) 48000L << 12) + (runtime->rate/2)) / runtime->rate; + val = DIV_ROUND_CLOSEST(48000U << 12, runtime->rate); outw(val, TRID_REG(trident, T4D_SBDELTA_DELTA_R)); // Set channel interrupt blk length |