[PATCH v1] microblaze: tag highmem_setup() with __meminit

* [PATCH v1] microblaze: tag highmem_setup() with __meminit
@ 2021-03-01 11:47 David Hildenbrand
  2021-03-01 22:18 ` Oscar Salvador
  0 siblings, 1 reply; 4+ messages in thread
From: David Hildenbrand @ 2021-03-01 11:47 UTC (permalink / raw)
  To: linux-kernel
  Cc: linux-mm, David Hildenbrand, kernel test robot, Andrew Morton,
	Michal Simek, Mike Rapoport, Thomas Gleixner, Arvind Sankar,
	Ira Weiny, Randy Dunlap, Oscar Salvador, Anshuman Khandual

With commit a0cd7a7c4bc0 ("mm: simplify free_highmem_page() and
free_reserved_page()") the kernel test robot complains about a warning:

WARNING: modpost: vmlinux.o(.text.unlikely+0x23ac): Section mismatch in
  reference from the function highmem_setup() to the function
  .meminit.text:memblock_is_reserved()

This has been broken ever since microblaze added highmem support,
because memblock_is_reserved() was already tagged with "__init" back then -
most probably the function always got inlined, so we never stumbled over
it.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 2f2f371f8907 ("microblaze: Highmem support")
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/microblaze/mm/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 181e48782e6c..05cf1fb3f5ff 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -52,7 +52,7 @@ static void __init highmem_init(void)
 	pkmap_page_table = virt_to_kpte(PKMAP_BASE);
 }
 
-static void highmem_setup(void)
+static void __meminit highmem_setup(void)
 {
 	unsigned long pfn;
 
-- 
2.29.2


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