linux-kernel - Re: [patch 06/24] x86/idtentry: Provide macros to define/declare IDT entry points

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Date:   Wed, 04 Mar 2020 13:46:20 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Alexandre Chartre <alexandre.chartre@...cle.com>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
        Brian Gerst <brgerst@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [patch 06/24] x86/idtentry: Provide macros to define/declare IDT entry points

Alexandre Chartre <alexandre.chartre@...cle.com> writes:
> On 2/25/20 11:16 PM, Thomas Gleixner wrote:
>> +#else /* !__ASSEMBLY__ */
>> +
>> +/* Defines for ASM code to construct the IDT entries */
>> +#define DECLARE_IDTENTRY(vector, func)				\
>> +	idtentry vector asm_##func func has_error_code=0
>
> Should be DEFINE_IDENTRY(), no? Like the comment says: "Defines for
> ..."

No. That's my confused brain. DECLARE_IDTENTRY is used for declarations
in C code and for emitting the ASM stubs when included from entry*.S

I'll reword the comment and add some more documentation.

Thanks,

        tglx