Re: [PATCH v4 1/4] PCI: Introduce pci_dev_for_each_resource()

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On Fri, Mar 10, 2023 at 07:14:13PM +0200, Andy Shevchenko wrote:
> +#define __pci_dev_for_each_resource(dev, res, __i, vartype)		\
> +	for (vartype __i = 0;						\
> +		res = &(dev)->resource[__i], __i < PCI_NUM_RESOURCES;	\
> +		__i++)

...

> +#define pci_dev_for_each_resource_p(dev, res)				\
> +	__pci_dev_for_each_resource(dev, res, i, unsigned int)

It looks dangerous to have a macro declare a variable when starting a new
scope. How do you know the name 'i' won't clash with something defined above?



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