Re: [PATCH] Fix readw/writew warnings in drivers/net/wireless/hermes.h

[viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]

On Mon, Oct 11, 2004 at 08:23:35AM -0400, Cal Peake wrote:
> On Mon, 11 Oct 2004, Jan Dittmer wrote:
> 
> > Cal Peake wrote:
> > 
> > >   inw((hw)->iobase + ( (off) << (hw)->reg_spacing )) : \
> > > - readw((hw)->iobase + ( (off) << (hw)->reg_spacing )))
> > > + readw((void __iomem *)(hw)->iobase + ( (off) << (hw)->reg_spacing )))
> > >  #define hermes_write_reg(hw, off, val) do { \
> > 
> > Isn't the correct fix to declare iobase as (void __iomem *) ?
> 
> iobase is an unsigned long, declaring it as a void pointer is prolly not 
> what we want to do here. The typecast seems proper. A lot of other drivers 
> do this as well thus it must be proper ;-)

Typecast is not a proper solution here.   Folks, there are cleanups underway
for all that mess, but it's not _that_ simple.

And adding casts to shut the warnings up is wrong in 99% of cases.