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Re: [XEN PATCH v3 05/12] x86/traps: address violations of MISRA C Rule 16.3



On Wed, 26 Jun 2024, Federico Serafini wrote:
> Add break or pseudo keyword fallthrough to address violations of
> MISRA C Rule 16.3: "An unconditional `break' statement shall terminate
> every switch-clause".
> 
> No functional change.
> 
> Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
> ---
> Changes in v3:
> - use break instead of fallthrough.
> ---
>  xen/arch/x86/traps.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
> index 9906e874d5..d62598a4c2 100644
> --- a/xen/arch/x86/traps.c
> +++ b/xen/arch/x86/traps.c
> @@ -1186,6 +1186,7 @@ void cpuid_hypervisor_leaves(const struct vcpu *v, 
> uint32_t leaf,
>  
>      default:
>          ASSERT_UNREACHABLE();
> +        break;

FYI the ASSERT_UNREACHABLE is still being discussed

Other than that:

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>


>      }
>  }
>  
> @@ -1748,6 +1749,7 @@ static void io_check_error(const struct cpu_user_regs 
> *regs)
>      {
>      case 'd': /* 'dom0' */
>          nmi_hwdom_report(_XEN_NMIREASON_io_error);
> +        break;
>      case 'i': /* 'ignore' */
>          break;
>      default:  /* 'fatal' */
> @@ -1768,6 +1770,7 @@ static void unknown_nmi_error(const struct 
> cpu_user_regs *regs,
>      {
>      case 'd': /* 'dom0' */
>          nmi_hwdom_report(_XEN_NMIREASON_unknown);
> +        break;
>      case 'i': /* 'ignore' */
>          break;
>      default:  /* 'fatal' */



 


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