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Re: [PATCH v2] arm/efi: address MISRA C Rule 11.3
- To: Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Orzel, Michal" <michal.orzel@xxxxxxx>
- Date: Mon, 3 Nov 2025 09:52:21 +0100
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, "Volodymyr Babchuk" <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Mon, 03 Nov 2025 08:52:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 27/10/2025 22:12, Dmytro Prokopchuk1 wrote:
> MISRA C Rule 11.3 prohibits casting between pointer-to-object types that
> are different types. The original code used a macro 'NextMemoryDescriptor()'
> that performed a non-compliant cast from 'UINT8*' to 'EFI_MEMORY_DESCRIPTOR*'.
>
> Change 'efi_process_memory_map_bootinfo()' function parameter from
> 'EFI_MEMORY_DESCRIPTOR *' to 'void *' for the memory map parameter. Replace
> usage of 'NextMemoryDescriptor()' macro with compliant pointer arithmetic
> on 'void *', followed by a single compliant cast to 'EFI_MEMORY_DESCRIPTOR *'.
>
> Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
~Michal
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