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Re: [PATCH v2 31/39] xen/riscv: add required things to asm/current.h
- To: Oleksii <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 18 Dec 2023 12:28:29 +0100
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- Cc: Alistair Francis <alistair.francis@xxxxxxx>, Bob Eshleman <bobbyeshleman@xxxxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 18 Dec 2023 11:28:41 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 18.12.2023 11:39, Oleksii wrote:
> On Thu, 2023-12-14 at 16:55 +0100, Jan Beulich wrote:
>> On 24.11.2023 11:30, Oleksii Kurochko wrote:
>>> --- a/xen/arch/riscv/include/asm/current.h
>>> +++ b/xen/arch/riscv/include/asm/current.h
>>> @@ -3,6 +3,22 @@
>>> #ifndef __ASM_CURRENT_H
>>> #define __ASM_CURRENT_H
>>>
>>> +#include <xen/percpu.h>
>>> +#include <asm/processor.h>
>>> +
>>> +#ifndef __ASSEMBLY__
>>> +
>>> +struct vcpu;
>>
>> I don't think you need this here?
> Shouldn't forward declaration be for the case of curr_vcpu declaration
> in the next line ?
I don't think so. In C forward decls are needed only when an otherwise
undeclared type is used as type of a function parameter. (C++ is different
in this regard.)
Jan
>>> +/* Which VCPU is "current" on this PCPU. */
>>> +DECLARE_PER_CPU(struct vcpu *, curr_vcpu);
>>> +
>>> +#define current (this_cpu(curr_vcpu))
|
