Am 29.07.2019 12:29, schrieb Colin King:
> From: Colin Ian King <[email protected]>
>
> 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 = operator with |= instead.
>
> Addresses-Coverity: ("Unused value")
> Fixes: b0c74b08517e ("drivers: thermal: processor_thermal_device: Export
> sysfs inteface for TCC offset")
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> .../thermal/intel/int340x_thermal/processor_thermal_device.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> index 6f6ac6a8e82d..cb22317911ef 100644
> --- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> +++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
> @@ -164,7 +164,7 @@ static int tcc_offset_update(int tcc)
> return err;
>
> val = ~GENMASK_ULL(31, 24);
> - val = (tcc & 0xff) << 24;
> + val |= (tcc & 0xff) << 24;
>
I do not think that GENMASK makes sence here.
re,
wh
> err = wrmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, val);
> if (err)
