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media: av7110: don't do float point math 

It sounds that earlier versions of GCC have troubles when
doing const math at compile time, if no typecast is used:

on i386:
	ERROR: modpost: "__floatunsidf" [drivers/media/pci/ttpci/dvb-ttpci.ko] undefined!
	ERROR: modpost: "__ltdf2" [drivers/media/pci/ttpci/dvb-ttpci.ko] undefined!

The warning was generated on gcc (SUSE Linux) 7.5.0.
Gcc 9.2 compiles it fine.

As an added bonus, it also fixes this objtool warning:

	drivers/media/pci/ttpci/av7110_v4l.c:163:11: error: SSE register return with SSE disabled

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-09-11 09:27:35 +02:00
parent 93c16fabdb
commit 5e8db34966
1 changed files with 2 additions and 2 deletions
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4
drivers/media/pci/ttpci/av7110_v4l.c
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@ -160,9 +160,9 @@ static int ves1820_set_tv_freq(struct saa7146_dev *dev, u32 freq)
buf[1] = div & 0xff;
buf[2] = 0x8e;
if (freq < 16U * 168.25)
if (freq < 16U * 16825 / 100)
config = 0xa0;
else if (freq < 16U * 447.25)
else if (freq < 16U * 44725 / 100)
config = 0x90;
else
config = 0x30;