[2.6 patch] mm/mmzone.c: EXPORT_UNUSED_SYMBOL

[2.6 patch] mm/mmzone.c: EXPORT_UNUSED_SYMBOL

[Adrian Bunk]

This patch marks three unused exports as EXPORT_UNUSED_SYMBOL.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

---

 mm/mmzone.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- linux-2.6.17-mm4-full/mm/mmzone.c.old	2006-06-30 02:54:10.000000000 +0200
+++ linux-2.6.17-mm4-full/mm/mmzone.c	2006-06-30 02:54:55.000000000 +0200
@@ -15,7 +15,7 @@
 	return NODE_DATA(first_online_node);
 }
 
-EXPORT_SYMBOL(first_online_pgdat);
+EXPORT_UNUSED_SYMBOL(first_online_pgdat);  /*  June 2006  */
 
 struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
 {
@@ -25,7 +25,7 @@
 		return NULL;
 	return NODE_DATA(nid);
 }
-EXPORT_SYMBOL(next_online_pgdat);
+EXPORT_UNUSED_SYMBOL(next_online_pgdat);  /*  June 2006  */
 
 
 /*
@@ -46,5 +46,5 @@
 	}
 	return zone;
 }
-EXPORT_SYMBOL(next_zone);
+EXPORT_UNUSED_SYMBOL(next_zone);  /*  June 2006  */
 

Re: [2.6 patch] mm/mmzone.c: EXPORT_UNUSED_SYMBOL

[Andrew Morton]

On Fri, 30 Jun 2006 13:32:48 +0200
Adrian Bunk <bunk@stusta.de> wrote:

> -EXPORT_SYMBOL(first_online_pgdat);
> +EXPORT_UNUSED_SYMBOL(first_online_pgdat);  /*  June 2006  */

for_each_zone() and for_each_online_pgdat() need this.  So the export is an
internal implementation detail to support those macros.  Those macros are
reasonable(ish) things to be doing from modules - could be that people
are using for_each_zone() already.

> -EXPORT_SYMBOL(next_online_pgdat);
> +EXPORT_UNUSED_SYMBOL(next_online_pgdat);  /*  June 2006  */

Ditto

> -EXPORT_SYMBOL(next_zone);
> +EXPORT_UNUSED_SYMBOL(next_zone);  /*  June 2006  */
>  

Tritto.

We could give it a whizz, but I'd expect that we'll end up dropping it. 
But then again, zones are fairly low-level things.  Let's give it a try.