On Tue, Oct 6, 2009 at 7:34 AM, Rajat Jain <[email protected]>wrote:
> Hi List,
>
> I found that there are some weird looking instances in kernel where a
> function has been DEFINED (as opposite to DECLARED) using and "extern"
> keyword. For e.g., the following code in arch/alpha/include/asm/io.h:
>
> extern inline void __iomem *generic_ioportmap(unsigned long a)
> {
> return alpha_mv.mv_ioportmap(a);
> }
>
> Using a definition along with extern does not make any sense to me.
> Can some one please enlighten what is its use / purpose?
>
> Thanks,
>
> Rajat Jain
>
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> Hi,
You can read about this here:
http://lists.parisc-linux.org/pipermail/parisc-linux/2005-October/027587.html
http://lkml.indiana.edu/hypermail/linux/kernel/0408.0/1695.html
--
Regards,
Denis
