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Re: [PATCH 4/4] x86/kexec: address Misra rule 11.1 violation in machine_kexec_load()
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- From: Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>
- Date: Mon, 5 Oct 2026 20:05:31 +0000
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- Delivery-date: Mon, 05 Oct 2026 20:05:49 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-topic: [PATCH 4/4] x86/kexec: address Misra rule 11.1 violation in machine_kexec_load()
On 9/3/26 14:44, Jan Beulich wrote:
> Misra rule 11.1 demands no conversion to different types at all. We
> deviate conversions to long, unsigned long, and void *, though - leverage
> that deviation here.
>
> No functional change intended.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>
> --- a/xen/arch/x86/machine_kexec.c
> +++ b/xen/arch/x86/machine_kexec.c
> @@ -121,7 +121,8 @@ int machine_kexec_load(struct kexec_imag
> }
>
> code_page = __map_domain_page(image->control_code_page);
> - memcpy(code_page, kexec_reloc, kexec_reloc_end - (char *)kexec_reloc);
> + memcpy(code_page, kexec_reloc,
> + kexec_reloc_end - (const char *)(unsigned long)kexec_reloc);
> unmap_domain_page(code_page);
>
> /*
Reviewed-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
BR, Dmytro.
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