On Mon, 2019-07-29 at 14:09 -0700, Srinivas Pandruvada wrote:
> On Mon, 2019-07-29 at 13:03 +0100, Colin King wrote:
> > From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> >
> > The variable val is having the top 8 bits cleared and then the
> > variable is being
> > re-assinged and setting just the top 8 bits. I believe the
> > intention
> > was bitwise-or
> > in the top 8 bits. Fix this by replacing the = operators with &=
> > and
> > > = instead.
> >
> > Addresses-Coverity: ("Unused value")
> > Fixes: b0c74b08517e ("drivers: thermal: processor_thermal_device:
> > Export sysfs inteface for TCC offset")
> > Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx
> >
Hi, Colin,
thanks for the fix, as b0c74b08517e ("drivers: thermal:
processor_thermal_device: Export sysfs inteface for TCC offset") has
not been shipped in upstream yet, I will fold this fix into the
original patch directly.
thanks,
rui
>
> > ---
> >
> > V2: Add in &= operator missing from V1. Doh.
> >
> > ---
> > .../thermal/intel/int340x_thermal/processor_thermal_device.c | 4
> > ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git
> > a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> > b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> > index 6f6ac6a8e82d..97333fc4be42 100644
> > ---
> > a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> > +++
> > b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> > @@ -163,8 +163,8 @@ static int tcc_offset_update(int tcc)
> > if (err)
> > return err;
> >
> > - val = ~GENMASK_ULL(31, 24);
> > - val = (tcc & 0xff) << 24;
> > + val &= ~GENMASK_ULL(31, 24);
> > + val |= (tcc & 0xff) << 24;
> >
> > err = wrmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, val);
> > if (err)
>
>
