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authorLars-Peter Clausen <lars@metafoo.de>2020-12-27 18:11:25 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2021-01-09 21:52:45 +0000
commit166549bb1e1dc890904dce26fed46fdd041522e9 (patch)
tree54f334ba2e35654264d2df48b128ba8d27c37818 /drivers/iio/chemical
parented0ccf6d22cc9fd7e3a2ba66238c68bb10992721 (diff)
downloadlinux-166549bb1e1dc890904dce26fed46fdd041522e9.tar.gz
iio: bme680: 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>
@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/20201227171126.28216-2-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/chemical')
-rw-r--r--drivers/iio/chemical/bme680_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index 6ea99e4cbf92..bf23cc7eb99e 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -479,7 +479,7 @@ static u8 bme680_calc_heater_res(struct bme680_data *data, u16 temp)
 	var4 = (var3 / (calib->res_heat_range + 4));
 	var5 = 131 * calib->res_heat_val + 65536;
 	heatr_res_x100 = ((var4 / var5) - 250) * 34;
-	heatr_res = (heatr_res_x100 + 50) / 100;
+	heatr_res = DIV_ROUND_CLOSEST(heatr_res_x100, 100);
 
 	return heatr_res;
 }