Messages in this thread | | | Date | Fri, 3 Mar 2006 12:46:42 +0100 | From | Adrian Bunk <> | Subject | Re: [2.6 patch] make UNIX a bool |
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On Thu, Mar 02, 2006 at 11:44:57PM -0500, James C. Georgas wrote: > On Thu, 2006-02-03 at 22:44 +0100, Adrian Bunk wrote: > > > > > > > > > We do not have to export symbols we don't want to export to modules but > > > > needed by CONFIG_UNIX. > > > > > > Sorry, I must just be dense, or something. > > > > > > Is not the only difference between a modular driver and a built in > > > driver supposed to be the initialization and cleanup functions? > > > > > > I don't see why you would have to expose any additional symbols, over > > > and above the existing required symbols, to load your module. > > > > Every kernel symbol a module uses must be explicitely exported with > > EXPORT_SYMBOL. > > Yes, I understand that I need to export symbols to define the interface > to my driver. whether its a module or compiled in. This is how other > systems interact with my driver, right?
EXPORT_SYMBOL is only required for modules.
> > CONFIG_UNIX uses symbols that are neither used by any other in-kernel > > modules nor should be exported. > > Are you saying that AF_UNIX has to export symbols for its own private > functions in order to call them? I guess I don't understand this. Why > not just call them. They're in scope within the driver code, aren't > they?
No, this is about functions defined in other parts of the kernel.
> James C. Georgas <jgeorgas@rogers.com>
cu Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
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