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[media] lmedm04: use u32 instead of u64 for relative stats

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Cleanup this sparse warning:
	drivers/media/usb/dvb-usb-v2/lmedm04.c:302 lme2510_update_stats() warn: should '((255 - st->signal_sn - 161) * 3) << 8' be a 64 bit type?

Both c_tmp and s_tmp actually stores a u16 stat. Using a u64 data
there is a waste, specially on u32 archs, as 64 ints there are more
expensive.

So, change the types to u32 and do the typecast only when storing
the result.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2015-06-23 12:22:06 -03:00
parent 7fd6bd9df1
commit 5ae65db547
1 changed files with 3 additions and 3 deletions
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6
drivers/media/usb/dvb-usb-v2/lmedm04.c
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@ -262,7 +262,7 @@ static void lme2510_update_stats(struct dvb_usb_adapter *adap)
struct lme2510_state *st = adap_to_priv(adap);
struct dvb_frontend *fe = adap->fe[0];
struct dtv_frontend_properties *c;
u64 s_tmp = 0, c_tmp = 0;
u32 s_tmp = 0, c_tmp = 0;
if (!fe)
return;
@ -309,11 +309,11 @@ static void lme2510_update_stats(struct dvb_usb_adapter *adap)
c->strength.len = 1;
c->strength.stat[0].scale = FE_SCALE_RELATIVE;
c->strength.stat[0].uvalue = s_tmp;
c->strength.stat[0].uvalue = (u64)s_tmp;
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_RELATIVE;
c->cnr.stat[0].uvalue = c_tmp;
c->cnr.stat[0].uvalue = (u64)c_tmp;
}
static void lme2510_int_response(struct urb *lme_urb)