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Re: [PATCH v2] vPCI: resolve MISRA R10.1 boolean arithmetic type violation
- To: Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 8 Oct 2026 09:47:51 +0200
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- Cc: Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Stewart Hildebrand <stewart.hildebrand@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 08 Oct 2026 07:47:58 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 07.10.2026 22:39, Dmytro Prokopchuk1 wrote:
> MISRA C Rule 10.1 states: "Operands shall not be of an inappropriate
> essential type".
>
> bar_write() and guest_mem_bar_write() added the boolean 'hi' to a
> pointer difference when printing the ignored BAR index. These handlers
> are registered only for the memory BAR registers, so print
> (reg - PCI_BASE_ADDRESS_0) / 4 instead. The expression has type
> unsigned int, so use %u.
>
> No functional changes.
>
> Suggested-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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