Re: [XEN][PATCH v9 13/19] asm/smp.h: Fix circular dependency for device_tree.h and rwlock.h

[Julien Grall <julien@xxxxxxx>]

Hi,

On 19/08/2023 01:28, Vikram Garhwal wrote:
> Dynamic programming ops will modify the dt_host and there might be other
> function which are browsing the dt_host at the same time. To avoid the race
> conditions, we will need to add a rwlock to protect access to the dt_host.
> However, adding rwlock in device_tree.h causes following circular dependency:
>      device_tree.h->rwlock.h->smp.h->asm/smp.h->device_tree.h
>
> To fix this, removed the "#include <xen/device_tree.h> and forward declared
> "struct dt_device_node".
>
> Signed-off-by: Vikram Garhwal <vikram.garhwal@xxxxxxx>
> Reviewed-by: Henry Wang <Henry.Wang@xxxxxxx>
> Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
Acked-by: Julien Grall <jgrall@xxxxxxxxxx>

Cheers,

--
Julien Grall