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Re: [PATCH 0/9] xen: address violations of MISRA C:2012 Rule 11.8
- To: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>, Maria Celeste Cesario <maria.celeste.cesario@xxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 14 Dec 2023 13:36:05 +0100
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- Cc: consulting@xxxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>, Doug Goldstein <cardoe@xxxxxxxxxx>
- Delivery-date: Thu, 14 Dec 2023 12:36:32 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 14.12.2023 13:07, Simone Ballarin wrote:
> From: Maria Celeste Cesario <maria.celeste.cesario@xxxxxxxxxxx>
>
> The xen sources contain violations of MISRA C:2012 Rule 11.8 whose
> headline states:
> "A conversion shall not remove any const, volatile or _Atomic
> qualification from the type pointed to by a pointer".
>
> This patch amends or removes casts that unnecessarily drop
> const and volatile qualifiers.
>
> Example:
>
> static always_inline bool int_##name(volatile void *p)
> {
> volatile uint32_t *ptr = (uint32_t *)p; /* Non-compliant */
> volatile uint32_t *ptr = (volatile uint32_t *)p; /* Compliant,
> proposed change */
> }
Why would you further complicate things when here the cast can simply
be dropped?
Jan
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