Re: [PATCH v4 3/6] xen/arm: use {DT,ACPI}_DEV_INFO for device info sections

[Michal Orzel <michal.orzel@amd.com>]

Hi Oleksii,

On 26/09/2024 18:54, Oleksii Kurochko wrote:
> 
> 
> Refactor arm/xen.lds.S by replacing the inline definitions for
> device info sections with the newly introduced {DT,ACPI}_DEV_INFO
> macros from xen/xen.lds.h.

I would expect so see a note about s/8/POINTER_ALIGN/ that it's safe to do that.

> 
> Signed-off-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
> ---
> Changes in V4:
>  - use newly refactored ACPI_DEV_INFO and DT_DEV_INFO
> ---
> Changes in V3:
>  - use refactored ADEV_INFO and DT_DEV_INFO macros.
> ---
>  xen/arch/arm/xen.lds.S | 16 ++++------------
>  1 file changed, 4 insertions(+), 12 deletions(-)
> 
> diff --git a/xen/arch/arm/xen.lds.S b/xen/arch/arm/xen.lds.S
> index 0987052f1a..3b7b677197 100644
> --- a/xen/arch/arm/xen.lds.S
> +++ b/xen/arch/arm/xen.lds.S
> @@ -4,6 +4,8 @@
> 
>  #include <xen/cache.h>
>  #include <xen/lib.h>
> +
> +#define SIMPLE_DECL_SECTION
>  #include <xen/xen.lds.h>
>  #include <asm/page.h>
>  #undef ENTRY
> @@ -124,20 +126,10 @@ SECTIONS
>        _eplatform = .;
>    } :text
> 
> -  . = ALIGN(8);
> -  .dev.info : {
> -      _sdevice = .;
> -      *(.dev.info)
> -      _edevice = .;
> -  } :text
> +  DT_DEV_INFO(.dev.info)
> 
>  #ifdef CONFIG_ACPI
> -  . = ALIGN(8);
> -  .adev.info : {
The name of the section is ".adev.info", but ...
> -      _asdevice = .;
> -      *(.adev.info)
> -      _aedevice = .;
> -  } :text
> +  ACPI_DEV_INFO(adev.info)
here you're missing the leading dot which will cause the probe to fail.

Apart from that:
Reviewed-by: Michal Orzel <michal.orzel@amd.com>

~Michal