Re: [PATCH 2/4] asmlinkage, x86: Add explicit __visible to arch/x86/*

From: Linus Torvalds
Date: Tue Apr 01 2014 - 14:33:54 EST


This still has these kinds of pointless changes. Why?

In the declaration of the function, the __visible is just noise. It's
not interesting to the caller, and doesn't add anything. In fact, I'd
argue that these kinds of declarations are not just noise, they are
*stupid* noise, because if the function is ever used by C code than
that "__visible" is pointless.

So get rid of the __visible. It's just more of the same confusion
where you think __visible and asmlinkage go together. They damn well
don't.

Linus

On Tue, Apr 1, 2014 at 10:32 AM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> #include <asm/sections.h>
>
> /* Interrupt handlers registered during init_IRQ */
> -extern asmlinkage void apic_timer_interrupt(void);
> -extern asmlinkage void x86_platform_ipi(void);
> -extern asmlinkage void kvm_posted_intr_ipi(void);
> -extern asmlinkage void error_interrupt(void);
> -extern asmlinkage void irq_work_interrupt(void);
...
> +extern asmlinkage __visible void apic_timer_interrupt(void);
> +extern asmlinkage __visible void x86_platform_ipi(void);
> +extern asmlinkage __visible void kvm_posted_intr_ipi(void);
> +extern asmlinkage __visible void error_interrupt(void);
> +extern asmlinkage __visible void irq_work_interrupt(void);
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