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From:   Al Viro <viro@zeniv.linux.org.uk>
To:     Guenter Roeck <linux@roeck-us.net>
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On Wed, Sep 08, 2021 at 05:42:30AM -0700, Guenter Roeck wrote:

> Oddly enough, a memcpy on the 'rtc' variable doesn't fail,
> neither with nor without volatile. Something else is going on.

While we are at it, would memcpy_fromio() complain?  Seeing that
this is what's really intended there...