Re: x86: clang: acpi-cpufreq.c:970:24: error: variable 'ret' is uninitialized when used here [-Werror,-Wuninitialized]

[stuart hayes]

On 11/10/2022 5:19 AM, Arnd Bergmann wrote:
> On Thu, Nov 10, 2022, at 12:14, Naresh Kamboju wrote:
> > [Please ignore email this if it is already reported]
> >
> > Kernel build warning noticed on x86_64 with clang toolchain [1].
> > Build failures noticed from next-20221108 .. next-20221110.
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
> >
> > make --silent --keep-going --jobs=8
> > O=/home/tuxbuild/.cache/tuxmake/builds/1/build LLVM=1 LLVM_IAS=1
> > ARCH=x86_64 SRCARCH=x86 CROSS_COMPILE=x86_64-linux-gnu- HOSTCC=clang
> > CC=clang
> > drivers/cpufreq/acpi-cpufreq.c:970:24: error: variable 'ret' is
> > uninitialized when used here [-Werror,-Wuninitialized]
> >          acpi_cpufreq_online = ret;
> >                                ^~~
> > drivers/cpufreq/acpi-cpufreq.c:960:9: note: initialize the variable
> > 'ret' to silence this warning
> >          int ret;
> >                 ^
> >                  = 0
> > 1 error generated.
>
> This is caused by 13fdbc8b8da6 ("cpufreq: ACPI: Defer setting boost MSRs"),
> which removes the initialization of this variable.
>
>        Arnd

Yes, I apologize for missing that.  A patch has already been submitted to
fix this:

https://lore.kernel.org/lkml/20221108170103.3375832-1-nathan@xxxxxxxxxx/