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Re: [PATCH] x86: Address MISRA Rule 13.6
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 2 Apr 2024 17:46:50 +0200
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Roberto Bagnara <roberto.bagnara@xxxxxxxxxxx>, "consulting @ bugseng . com" <consulting@xxxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 02 Apr 2024 15:46:58 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 02.04.2024 17:43, Andrew Cooper wrote:
> MISRA Rule 13.6 doesn't like having an expression in a sizeof() which
> potentially has side effects.
>
> Address several violations by pulling the expression out into a local
> variable.
>
> No functional change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
with one caveat:
> --- a/xen/arch/x86/irq.c
> +++ b/xen/arch/x86/irq.c
> @@ -1150,8 +1150,9 @@ static void cf_check irq_guest_eoi_timer_fn(void *data)
> {
> struct domain *d = action->guest[i];
> unsigned int pirq = domain_irq_to_pirq(d, irq);
> + struct pirq *pirq_info = pirq_info(d, pirq);
Misra won't like the var's name matching the macro's. Can we go with just
"info"?
Jan
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