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Re: [PATCH v2] xen/public: fix flexible array definitions
- To: Juergen Gross <jgross@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 30 Nov 2023 14:14:01 +0100
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- Cc: 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: Thu, 30 Nov 2023 13:14:13 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 30.11.2023 10:21, Juergen Gross wrote:
> --- a/xen/include/public/xen.h
> +++ b/xen/include/public/xen.h
> @@ -46,6 +46,12 @@ DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
> #else
> #define XEN_FLEX_ARRAY_DIM 1 /* variable size */
> #endif
> +/* Some PV I/O interfaces need a compatibility variant. */
> +#if __XEN_INTERFACE_VERSION__ < 0x00041300
> +#define XENPV_FLEX_ARRAY_DIM 1 /* variable size */
> +#else
> +#define XENPV_FLEX_ARRAY_DIM XEN_FLEX_ARRAY_DIM
> +#endif
May I suggest that this live in io/ring.h, for the lack of a better place
under io/?
Jan
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