[Xen-devel] Re: [PATCH] qemu_ram_ptr_length: take ram_addr_t as arguments

[Peter Maydell <peter.maydell@xxxxxxxxxx>]

On 27 June 2011 14:34, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
> On Fri, 24 Jun 2011, Peter Maydell wrote:
>> You probably want to only call qemu_ram_ptr_length() if (todo).
>> (I don't know if anybody ever calls this routine with a zero input
>> length, but that would handle that case too.)
>
> I would rather fix qemu_ram_ptr_length to handle 0 as size argument, and
> then call qemu_ram_ptr_length with 0 size from cpu_physical_memory_map
> (see appended patch).

OK, that should work too.

>> (Also 'addr1' is not a fantastic variable name :-))
>
> Agreed, but it is the same as before :)
> Do you have any better suggestion? Maybe raddr? I admit I am not very
> imaginative with names.

I think raddr is better than addr1, yes.

> +    if (*size == 0)
> +        return NULL;

Incidentally, QEMU coding style has braces here. scripts/checkpatch.pl
can catch this kind of minor style nit for you (although it is not
infallible...)

-- PMM

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