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Re: [XEN PATCH v3 3/3] xen/mm: add declaration for first_valid_mfn
- To: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 13 Dec 2023 09:26:55 +0100
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- Cc: consulting@xxxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 13 Dec 2023 08:27:08 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 11.12.2023 10:14, Nicola Vetrini wrote:
> --- a/xen/arch/arm/include/asm/numa.h
> +++ b/xen/arch/arm/include/asm/numa.h
> @@ -2,8 +2,9 @@
> #define __ARCH_ARM_NUMA_H
>
> #include <xen/mm.h>
With this, ...
> +#include <xen/types.h>
>
> -typedef u8 nodeid_t;
> +typedef uint8_t nodeid_t;
>
> #ifndef CONFIG_NUMA
>
> @@ -12,10 +13,9 @@ typedef u8 nodeid_t;
> #define node_to_cpumask(node) (cpu_online_map)
>
> /*
> - * TODO: make first_valid_mfn static when NUMA is supported on Arm, this
> - * is required because the dummy helpers are using it.
> + * TODO: define here first_valid_mfn as static when NUMA is supported on Arm,
> + * this is required because the dummy helpers are using it.
> */
> -extern mfn_t first_valid_mfn;
... and this declaration moved to xen/mm.h, how is it going to be possible
to do as the adjusted comment says? The compiler will choke on the static
after having seen the extern.
I also firmly disagree with the entirely unrelated u8 -> uint8_t change
above. Such tidying can be done when somewhat related to what a patch is
doing anyway, but here there's (imo) not even a vague connection.
Jan
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