Messages in this thread | | | Date | Thu, 29 Mar 2012 13:07:39 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] /dev/mem: Add kernel config option to omit this device. |
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On 03/29/2012 12:32 PM, Maarten ter Huurne wrote: > 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@treewalker.org> >> >> 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. >
Yes, splitting them and making it possible to compile them as modules.
And certainly the devices you list above are really quite different from, say /dev/null or /dev/zero.
-hpa
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