Re: linux-next: build warning after merge of the final tree (tiptree related)

From: Yinghai Lu
Date: Mon Oct 11 2010 - 15:35:47 EST


On 10/11/2010 12:00 PM, H. Peter Anvin wrote:
> On 10/11/2010 10:09 AM, Yinghai Lu wrote:
>>
>> make all functions in memblock.c without __init to carry __init_memblock.
>>
>>
>> -static phys_addr_t __init memblock_find_region(phys_addr_t start, phys_addr_t end,
>> +static phys_addr_t __init_memblock memblock_find_region(phys_addr_t start, phys_addr_t end,
>> phys_addr_t size, phys_addr_t align)
>>
>> -static int memblock_search(struct memblock_type *type, phys_addr_t addr)
>> +static int __init_memblock memblock_search(struct memblock_type *type, phys_addr_t addr)
>>
>
> Your patch description doesn't match what your patch does. Please write
> a correct description.

please check

[PATCH -v2] x86: Fix section mismatch with memblock_find_region()

Stephen found

WARNING: mm/built-in.o(.text+0x25ab8): Section mismatch in reference from the function memblock_find_base() to the function .init.text:memblock_find_region()
The function memblock_find_base() references
the function __init memblock_find_region().
This is often because memblock_find_base lacks a __init
annotation or the annotation of memblock_find_region is wrong.

So let memblock_find_region() to use __init_memblock insteaf of __init directly.

Also make left function that doesn't have __init* to carry __init_memblock.

Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>

---
mm/memblock.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/mm/memblock.c
===================================================================
--- linux-2.6.orig/mm/memblock.c
+++ linux-2.6/mm/memblock.c
@@ -99,7 +99,7 @@ long __init_memblock memblock_overlaps_r
* are top-down.
*/

-static phys_addr_t __init memblock_find_region(phys_addr_t start, phys_addr_t end,
+static phys_addr_t __init_memblock memblock_find_region(phys_addr_t start, phys_addr_t end,
phys_addr_t size, phys_addr_t align)
{
phys_addr_t base, res_base;
@@ -653,7 +653,7 @@ void __init memblock_enforce_memory_limi
}
}

-static int memblock_search(struct memblock_type *type, phys_addr_t addr)
+static int __init_memblock memblock_search(struct memblock_type *type, phys_addr_t addr)
{
unsigned int left = 0, right = type->cnt;

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