V4L/DVB: dvb: l64781.ko broken with gcc 4.5

I'm trying to fix it on the GCC side (PR43007), but the module is
quite stupid in using ULL constants to operate on u32 values:

static int apply_frontend_param (struct dvb_frontend* fe, struct
dvb_frontend_parameters *param)
{
...
 static const u32 ppm = 8000;
 u32 spi_bias;
...

 spi_bias *= 1000ULL;
 spi_bias /= 1000ULL + ppm/1000;

which causes current GCC 4.5 to emit calls to __udivdi3 for i?86 again.

This patch fixes this issue.

Signed-off-by: Richard Guenther <rguenther@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/frontends/l64781.c b/drivers/media/dvb/frontends/l64781.c
index 3051b64..445fa10 100644 (file)
--- a/drivers/media/dvb/frontends/l64781.c
+++ b/drivers/media/dvb/frontends/l64781.c
@@ -192,8 +192,8 @@ static int apply_frontend_param (struct dvb_frontend* fe, struct dvb_frontend_pa
        spi_bias *= qam_tab[p->constellation];
        spi_bias /= p->code_rate_HP + 1;
        spi_bias /= (guard_tab[p->guard_interval] + 32);
-       spi_bias *= 1000ULL;
-       spi_bias /= 1000ULL + ppm/1000;
+       spi_bias *= 1000;
+       spi_bias /= 1000 + ppm/1000;
        spi_bias *= p->code_rate_HP;
 
        val0x04 = (p->transmission_mode << 2) | p->guard_interval;