Thanks!
________________________________
From: [email protected]
[mailto:[email protected]] On Behalf Of Denis Kirjanov
Sent: Tuesday, October 06, 2009 9:53 AM
To: Rajat Jain
Cc: kernelnewbies
Subject: Re: strange code in linux kernel
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
