Re: [PATCH 3/4] x86/cpuid: move filter_cpuid_features to cpuid-deps.c

[Dave Hansen]

On 6/22/22 07:48, Maxim Levitsky wrote:
> No functional change intended.

It would be really nice to at least write a "why" sentence.  You wrote
the "what" (move code), but I have no idea why you are moving it.

>  arch/x86/kernel/cpu/common.c      | 46 -----------------------------
>  arch/x86/kernel/cpu/cpuid-deps.c  | 48 +++++++++++++++++++++++++++++++

That looks a wee bit odd for a code move.  Where did the 2 lines go?

> diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
> index ea34cc31b0474f..3eb5fe0d654e63 100644
> --- a/arch/x86/include/asm/cpufeature.h
> +++ b/arch/x86/include/asm/cpufeature.h
> @@ -147,6 +147,7 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
>  
>  extern void setup_clear_cpu_cap(unsigned int bit);
>  extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit);
> +extern void filter_cpuid_features(struct cpuinfo_x86 *c, bool warn);
>  
>  #define setup_force_cpu_cap(bit) do { \
>  	set_cpu_cap(&boot_cpu_data, bit);	\
> diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
> index 4730b0a58f24a5..4cc79971d2d847 100644
> --- a/arch/x86/kernel/cpu/common.c
> +++ b/arch/x86/kernel/cpu/common.c
> @@ -620,52 +620,6 @@ __noendbr void cet_disable(void)
>  		wrmsrl(MSR_IA32_S_CET, 0);
>  }
>  
> -/*
...
> -}
>  
>  /*
>   * Naming convention should be: <Name> [(<Codename>)]

One, by leaving extra whitespace.

> diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c
> index d6777d07ba3302..bcb091d02a754b 100644
> --- a/arch/x86/kernel/cpu/cpuid-deps.c
> +++ b/arch/x86/kernel/cpu/cpuid-deps.c
> @@ -131,3 +131,51 @@ void setup_clear_cpu_cap(unsigned int feature)
>  {
>  	clear_cpu_cap(&boot_cpu_data, feature);
>  }
> +
> +
> +/*

Two, by adding extra whitespace.