Re: [PATCH v4] misra: add deviation for MISRA C Rule R11.8.

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Thu, 9 Jan 2025, Alessandro Zucchelli wrote:
> Rule 11.8 states as following: "A cast shall not remove any `const' or
> `volatile' qualification from the type pointed to by a pointer".
> 
> Function `__hvm_copy' in `xen/arch/x86/hvm/hvm.c' is a double-use
> function, where the parameter needs to not be const because it can be
> set for write or not. As it was decided a new const-only function will
> lead to more developer confusion than it's worth, this violation is
> addressed by deviating the function.
> All cases of casting away const-ness are accompanied with a comment
> explaining why it is safe given the other flags passed in; such comment is 
> used
> by the deviation in order to match the appropriate function call.
> 
> No functional change.
> 
> Signed-off-by: Alessandro Zucchelli <alessandro.zucchelli@xxxxxxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>