Re: [PATCH v2 2/3] devres: Add devm_ioremap_shared_resource()

[Andy Shevchenko]

On Wed, Jan 24, 2018 at 12:07 PM, Ladislav Michl <ladis@xxxxxxxxxxxxxx> wrote:
> Implement managed ioremap function for shared resources.

> +#define devm_ioremap_resource(dev, res) \
> +       __devm_ioremap_resource(dev, res, false)
> +#define devm_ioremap_shared_resource(dev, res) \
> +       __devm_ioremap_resource(dev, res, true)
> +void __iomem *__devm_ioremap_resource(struct device *dev, struct resource *res,
> +                                     bool shared);

I would rather do the following:

_resource() ->  _resource_exclusive()

#define _resource()  _resource_exclusive()

Add _resource_shared()

And use long names below in this file whenever refer to exclusive or
shared variant.

>  void devm_iounmap(struct device *dev, void __iomem *addr);
>  int check_signature(const volatile void __iomem *io_addr,
>                         const unsigned char *signature, int length);
> +
>  void devm_ioremap_release(struct device *dev, void *res);

This part doesn't belong to the change.

> + * When possible, use devm_ioremap_resource() or
> + * devm_ioremap_shared_resource() instead.
> - * Checks that a resource is a valid memory region, requests the memory
> - * region and ioremaps it. All operations are managed and will be undone
> - * on driver detach.
> + * Checks that a resource is a valid memory region, eventually requests the
> + * memory region and ioremaps it. All operations are managed and will be
> + * undone on driver detach.

Wording is changed and no clue in commit message why.


-- 
With Best Regards,
Andy Shevchenko