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Re: [XEN PATCH 00/13] xen: fixed violations of MISRA C:2012 Rule 7.2
- To: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Tue, 20 Jun 2023 15:09:04 +0200
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, consulting@xxxxxxxxxxx, Gianluca Luparini <gianluca.luparini@xxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Jun Nakajima <jun.nakajima@xxxxxxxxx>, Kevin Tian <kevin.tian@xxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Tamas K Lengyel <tamas@xxxxxxxxxxxxx>, Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>, Petre Pircalabu <ppircalabu@xxxxxxxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Xenia Ragiadakou <Xenia.Ragiadakou@xxxxxxx>, Ayan Kumar <ayan.kumar.halder@xxxxxxx>
- Delivery-date: Tue, 20 Jun 2023 13:09:37 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, Jun 20, 2023 at 12:34:52PM +0200, Simone Ballarin wrote:
> From: Gianluca Luparini <gianluca.luparini@xxxxxxxxxxx>
>
> The xen sources contains violations of MISRA C:2012 Rule 7.2 whose headline
> states:
> "A "u" or "U" suffix shall be applied to all integer constants that are
> represented in an unsigned type".
>
> These violations are caused by the missing "u" or "U" suffix in unsigned
> integer constants, such as:
>
> xen/arch/x86/hvm/hypercall.c:132.17-132.26
> if ( (eax & 0x80000000) && is_viridian_domain(currd) )
>
> The patches in this series achieve compliance for MISRA C:2012 Rule 7.2
> by adding the "U" suffix to explicitly state when an integer constant is
> represented in an unsigned type.
I wonder if there should be a patch to CODING_STYLE also as part of
the series?
I know it's in misra/rules.rst, but still it's something that could
easily be added to the CODING_STYLE, unlike other rules that are more
abstract.
We could also settle on whether to use lowercase or uppercase suffixes
uniformly.
Thanks, Roger.
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