[PATCH] staging: fieldbus: anybuss: force address space conversion

Sven Van Asbroeck thesven73 at gmail.com
Tue May 21 15:19:59 UTC 2019

On Tue, May 21, 2019 at 11:13 AM Dan Carpenter <dan.carpenter at oracle.com> wrote:
> There is no need to use __force.  Just:
>         void __iomem *base = (void __iomem *)context;
> For the rest as well.

Yes, that appears to work for 'void *' -> __iomem, but not the other way around:

+       return devm_regmap_init(dev, NULL, (void *)base, &regmap_cfg);

sparse generates:
drivers/staging/fieldbus/anybuss/arcx-anybus.c:156:16: warning: cast
removes address space of expression

Would it be a ok solution to use __force in this instance only?

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