Re: [PATCH v2 05/11] PCI: Add pci_rebar_size_supported() helper

[Jani Nikula <jani.nikula@linux.intel.com>]

On Mon, 15 Sep 2025, Andi Shyti <andi.shyti@kernel.org> wrote:
> Hi Ilpo,
>
>> +/**
>> + * pci_rebar_size_supported - check if size is supported for BAR
>> + * @pdev: PCI device
>> + * @bar: BAR to check
>> + * @size: size as defined in the PCIe spec (0=1MB, 31=128TB)
>> + *
>> + * Return: %true if @bar is resizable and @size is a supported, otherwise
>> + *	   %false.
>> + */
>> +bool pci_rebar_size_supported(struct pci_dev *pdev, int bar, int size)
>> +{
>> +	u64 sizes = pci_rebar_get_possible_sizes(pdev, bar);
>> +
>> +	return BIT(size) & sizes;
>
> I would return here "!!(BIT(size) & sizes)", but it doesn't
> really matter.

If the patch had that, I'd ask to drop the superfluous negations and
parens...

BR,
Jani.

>
> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
>
> Andi

-- 
Jani Nikula, Intel