From: David Vrabel <david.vrabel@citrix.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>, <xen-devel@lists.xenproject.org>
Cc: Juergen Gross <jgross@suse.com>,
Stefano Stabellini <sstabellini@kernel.org>,
<linux-kernel@vger.kernel.org>,
Julien Grall <julien.grall@arm.com>,
David Vrabel <david.vrabel@citrix.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>
Subject: Re: [Xen-devel] [PATCH linux] xen: change the type of xen_vcpu_id to uint32_t
Date: Thu, 28 Jul 2016 18:18:07 +0100 [thread overview]
Message-ID: <579A3E4F.2050105@citrix.com> (raw)
In-Reply-To: <1469723086-22387-1-git-send-email-vkuznets@redhat.com>
On 28/07/16 17:24, Vitaly Kuznetsov wrote:
> We pass xen_vcpu_id mapping information to hypercalls which require
> uint32_t type so it would be cleaner to have it as uint32_t. The
> initializer to -1 can be dropped as we always do the mapping before using
> it and we never check the 'not set' value anyway.
[...]
> --- a/include/xen/xen-ops.h
> +++ b/include/xen/xen-ops.h
> @@ -9,7 +9,7 @@
>
> DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
>
> -DECLARE_PER_CPU(int, xen_vcpu_id);
> +DECLARE_PER_CPU(uint32_t, xen_vcpu_id);
> static inline int xen_vcpu_nr(int cpu)
Should the return type of this change to uint32_t as well?
> {
> return per_cpu(xen_vcpu_id, cpu);
>
David
next prev parent reply other threads:[~2016-07-28 17:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-28 16:24 [PATCH linux] xen: change the type of xen_vcpu_id to uint32_t Vitaly Kuznetsov
2016-07-28 17:18 ` David Vrabel [this message]
2016-07-29 8:50 ` [Xen-devel] " Vitaly Kuznetsov
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