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authorArnd Bergmann <arnd@arndb.de>2016-02-12 12:27:18 -0200
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2016-05-06 08:44:17 -0300
commit8a73faab0a6b6c620c62f24fc991d0ad653b848b (patch)
tree94239a2e956abe22227941a0c26834fb6947ca59 /drivers/media/dvb-frontends/zl10353.c
parent68af062b5f38510dc96635314461c6bbe1dbf2fe (diff)
[media] zl10353: use div_u64 instead of do_div
Using div_u64() instead of do_div() makes the code slightly more readable by humans. [mchehab@osg.samsung.org: originally, this patch was proposed as a bug fix for a gcc bug. This was solved already, but it is still better to use div_u64, instead of do_div, so I'm applying it, removing the comments about the gcc bug] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends/zl10353.c')
-rw-r--r--drivers/media/dvb-frontends/zl10353.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/media/dvb-frontends/zl10353.c b/drivers/media/dvb-frontends/zl10353.c
index 1832c2f7695c..3b08176d7bec 100644
--- a/drivers/media/dvb-frontends/zl10353.c
+++ b/drivers/media/dvb-frontends/zl10353.c
@@ -135,8 +135,7 @@ static void zl10353_calc_nominal_rate(struct dvb_frontend *fe,
value = (u64)10 * (1 << 23) / 7 * 125;
value = (bw * value) + adc_clock / 2;
- do_div(value, adc_clock);
- *nominal_rate = value;
+ *nominal_rate = div_u64(value, adc_clock);
dprintk("%s: bw %d, adc_clock %d => 0x%x\n",
__func__, bw, adc_clock, *nominal_rate);
@@ -163,8 +162,7 @@ static void zl10353_calc_input_freq(struct dvb_frontend *fe,
if (ife > adc_clock / 2)
ife = adc_clock - ife;
}
- value = (u64)65536 * ife + adc_clock / 2;
- do_div(value, adc_clock);
+ value = div_u64((u64)65536 * ife + adc_clock / 2, adc_clock);
*input_freq = -value;
dprintk("%s: if2 %d, ife %d, adc_clock %d => %d / 0x%x\n",