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Re: [XEN PATCH v3 01/16] misra: add deviation for headers that explicitly avoid guards
- To: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 11 Mar 2024 11:02:07 +0100
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- Cc: consulting@xxxxxxxxxxx, sstabellini@xxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 11 Mar 2024 10:02:11 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 11.03.2024 09:59, Simone Ballarin wrote:
> Some headers, under specific circumstances (documented in a comment at
> the beginning of the file), explicitly avoid inclusion guards: the caller
> is responsible for including them correctly.
>
> These files are not supposed to comply with Directive 4.10:
> "Precautions shall be taken in order to prevent the contents of a header
> file being included more than once"
>
> This patch adds deviation cooments for headers that avoid guards.
>
> Signed-off-by: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>
>
> ---
> Changes in v3:
> - fix inconsistent deviation ID
> - change comment-based deviation text
> Changes in v2:
> - use the format introduced with doc/misra/safe.json instead of
> a generic text-based deviation
> ---
> docs/misra/safe.json | 9 +++++++++
> xen/include/public/arch-x86/cpufeatureset.h | 1 +
> xen/include/public/errno.h | 1 +
> 3 files changed, 11 insertions(+)
I understand something wants doing, but having such comments appear in public
headers feels wrong to me. I'm afraid I have no good alternative suggestion.
Jan
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