From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Subject: mm: memblock: fix section mismatch warning again
Commit 34dc2efb39a2 ("memblock: fix section mismatch warning") marked
memblock_bottom_up() and memblock_set_bottom_up() as __init, but they
could be referenced from non-init functions like
memblock_find_in_range_node() on architectures that enable
CONFIG_ARCH_KEEP_MEMBLOCK.
For such builds kernel test robot reports: All warnings (new ones prefixed
by >>, old ones prefixed by <<):
>> WARNING: modpost: vmlinux.o(.text+0x74fea4): Section mismatch in reference from the function memblock_find_in_range_node() to the function .init.text:memblock_bottom_up()
The function memblock_find_in_range_node() references
the function __init memblock_bottom_up().
This is often because memblock_find_in_range_node lacks a __init
annotation or the annotation of memblock_bottom_up is wrong.
Replace __init annotations with __init_memblock annotations so that the
appropriate section will be selected depending on
CONFIG_ARCH_KEEP_MEMBLOCK.
Link: https://lore.kernel.org/lkml/202103160133.UzhgY0wt-lkp@xxxxxxxxx
Link: https://lkml.kernel.org/r/20210316171347.14084-1-rppt@xxxxxxxxxx
Fixes: 34dc2efb39a2 ("memblock: fix section mismatch warning")
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memblock.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/memblock.h~memblock-fix-section-mismatch-warning-again
+++ a/include/linux/memblock.h
@@ -460,7 +460,7 @@ static inline void memblock_free_late(ph
/*
* Set the allocation direction to bottom-up or top-down.
*/
-static inline __init void memblock_set_bottom_up(bool enable)
+static inline __init_memblock void memblock_set_bottom_up(bool enable)
{
memblock.bottom_up = enable;
}
@@ -470,7 +470,7 @@ static inline __init void memblock_set_b
* if this is true, that said, memblock will allocate memory
* in bottom-up direction.
*/
-static inline __init bool memblock_bottom_up(void)
+static inline __init_memblock bool memblock_bottom_up(void)
{
return memblock.bottom_up;
}
_
