Re: [PATCH] /dev/mem: Add kernel config option to omit this device.

From: Maarten ter Huurne
Date: Thu Mar 29 2012 - 15:26:14 EST

On Thursday 29 March 2012 10:30:14 H. Peter Anvin wrote:
> On 03/29/2012 10:22 AM, Maarten ter Huurne wrote:
> > Many systems don't need /dev/mem, so make it optional.
> > It saves some space on embedded systems.
> >
> > Signed-off-by: Maarten ter Huurne <maarten@xxxxxxxxxxxxxx>
> I would like to see it being modular if it is made optional. I think
> that would be the right thing anyway.

By modular, do you mean splitting off the code from drivers/char/mem.c into
a new source file?

In mem.c there are several static functions used by more than one device,
but I think /dev/mem, /dev/kmem and /dev/port are relatively independent of
the other devices, so splitting off those three would be an option.


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