2007-06-01 04:26:28

by Paul Mundt

[permalink] [raw]
Subject: [PATCH] sparsemem: Shut up unused symbol compiler warnings.

__kmalloc_section_memmap()/__kfree_section_memmap() and friends are only
used by the memory hotplug code. Move these in to the existing
CONFIG_MEMORY_HOTPLUG block.

Signed-off-by: Paul Mundt <[email protected]>

--

mm/sparse.c | 42 +++++++++++++++++++++---------------------
1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index 1302f83..35f739a 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -229,6 +229,7 @@ static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum)
return NULL;
}

+#ifdef CONFIG_MEMORY_HOTPLUG
static struct page *__kmalloc_section_memmap(unsigned long nr_pages)
{
struct page *page, *ret;
@@ -269,27 +270,6 @@ static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
}

/*
- * Allocate the accumulated non-linear sections, allocate a mem_map
- * for each and record the physical to section mapping.
- */
-void __init sparse_init(void)
-{
- unsigned long pnum;
- struct page *map;
-
- for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
- if (!valid_section_nr(pnum))
- continue;
-
- map = sparse_early_mem_map_alloc(pnum);
- if (!map)
- continue;
- sparse_init_one_section(__nr_to_section(pnum), pnum, map);
- }
-}
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-/*
* returns the number of sections whose mem_maps were properly
* set. If this is <=0, then that means that the passed-in
* map was not consumed and must be freed.
@@ -329,3 +309,23 @@ out:
return ret;
}
#endif
+
+/*
+ * Allocate the accumulated non-linear sections, allocate a mem_map
+ * for each and record the physical to section mapping.
+ */
+void __init sparse_init(void)
+{
+ unsigned long pnum;
+ struct page *map;
+
+ for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
+ if (!valid_section_nr(pnum))
+ continue;
+
+ map = sparse_early_mem_map_alloc(pnum);
+ if (!map)
+ continue;
+ sparse_init_one_section(__nr_to_section(pnum), pnum, map);
+ }
+}


2007-06-01 05:26:59

by Yasunori Goto

[permalink] [raw]
Subject: Re: [PATCH] sparsemem: Shut up unused symbol compiler warnings.


I think this issue is fixed by
move-three-functions-that-are-only-needed-for.patch in current -mm tree.
Is it not enough?

Thanks.

> __kmalloc_section_memmap()/__kfree_section_memmap() and friends are only
> used by the memory hotplug code. Move these in to the existing
> CONFIG_MEMORY_HOTPLUG block.
>
> Signed-off-by: Paul Mundt <[email protected]>
>
> --
>
> mm/sparse.c | 42 +++++++++++++++++++++---------------------
> 1 file changed, 21 insertions(+), 21 deletions(-)
>
> diff --git a/mm/sparse.c b/mm/sparse.c
> index 1302f83..35f739a 100644
> --- a/mm/sparse.c
> +++ b/mm/sparse.c
> @@ -229,6 +229,7 @@ static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum)
> return NULL;
> }
>
> +#ifdef CONFIG_MEMORY_HOTPLUG
> static struct page *__kmalloc_section_memmap(unsigned long nr_pages)
> {
> struct page *page, *ret;
> @@ -269,27 +270,6 @@ static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
> }
>
> /*
> - * Allocate the accumulated non-linear sections, allocate a mem_map
> - * for each and record the physical to section mapping.
> - */
> -void __init sparse_init(void)
> -{
> - unsigned long pnum;
> - struct page *map;
> -
> - for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
> - if (!valid_section_nr(pnum))
> - continue;
> -
> - map = sparse_early_mem_map_alloc(pnum);
> - if (!map)
> - continue;
> - sparse_init_one_section(__nr_to_section(pnum), pnum, map);
> - }
> -}
> -
> -#ifdef CONFIG_MEMORY_HOTPLUG
> -/*
> * returns the number of sections whose mem_maps were properly
> * set. If this is <=0, then that means that the passed-in
> * map was not consumed and must be freed.
> @@ -329,3 +309,23 @@ out:
> return ret;
> }
> #endif
> +
> +/*
> + * Allocate the accumulated non-linear sections, allocate a mem_map
> + * for each and record the physical to section mapping.
> + */
> +void __init sparse_init(void)
> +{
> + unsigned long pnum;
> + struct page *map;
> +
> + for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
> + if (!valid_section_nr(pnum))
> + continue;
> +
> + map = sparse_early_mem_map_alloc(pnum);
> + if (!map)
> + continue;
> + sparse_init_one_section(__nr_to_section(pnum), pnum, map);
> + }
> +}
>
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to [email protected]. For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"[email protected]"> [email protected] </a>

--
Yasunori Goto


2007-06-01 05:35:21

by Paul Mundt

[permalink] [raw]
Subject: Re: [PATCH] sparsemem: Shut up unused symbol compiler warnings.

On Fri, Jun 01, 2007 at 02:26:17PM +0900, Yasunori Goto wrote:
> I think this issue is fixed by
> move-three-functions-that-are-only-needed-for.patch in current -mm tree.
> Is it not enough?
>
That's possible, I hadn't checked -mm. This was simply against current
git. If there's already a fix in -mm, then this can simply be ignored.

2007-06-01 05:57:38

by Yasunori Goto

[permalink] [raw]
Subject: Re: [PATCH] sparsemem: Shut up unused symbol compiler warnings.

> On Fri, Jun 01, 2007 at 02:26:17PM +0900, Yasunori Goto wrote:
> > I think this issue is fixed by
> > move-three-functions-that-are-only-needed-for.patch in current -mm tree.
> > Is it not enough?
> >
> That's possible, I hadn't checked -mm. This was simply against current
> git. If there's already a fix in -mm, then this can simply be ignored.

Okay. Thanks for your report.

--
Yasunori Goto