Fix min_low_pfn/max_low_pfn build errors on ia64 and microblaze

Some configurations of ia64 and microblaze use min_low_pfn and
 max_low_pfn in pfn_valid(). This causes build failures for modules that
 use pfn_valid().
 
 The fix is to add EXPORT_SYMBOL() for these variables on ia64 and
 microblaze.
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Merge tag 'fixes-2020-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull misc build failure fixes from Mike Rapoport:
 "Fix min_low_pfn/max_low_pfn build errors on ia64 and microblaze.

  Some configurations of ia64 and microblaze use min_low_pfn and
  max_low_pfn in pfn_valid(). This causes build failures for modules
  that use pfn_valid().

  The fix is to add EXPORT_SYMBOL() for these variables on ia64 and
  microblaze"

* tag 'fixes-2020-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  ia64: fix min_low_pfn/max_low_pfn build errors
  microblaze: fix min_low_pfn/max_low_pfn build errors
This commit is contained in:
Linus Torvalds 2020-09-03 10:05:48 -07:00
commit e28f010434
2 changed files with 4 additions and 1 deletions

View File

@ -3,7 +3,7 @@
* Architecture-specific kernel symbols
*/
#ifdef CONFIG_VIRTUAL_MEM_MAP
#if defined(CONFIG_VIRTUAL_MEM_MAP) || defined(CONFIG_DISCONTIGMEM)
#include <linux/compiler.h>
#include <linux/export.h>
#include <linux/memblock.h>

View File

@ -46,6 +46,9 @@ unsigned long memory_size;
EXPORT_SYMBOL(memory_size);
unsigned long lowmem_size;
EXPORT_SYMBOL(min_low_pfn);
EXPORT_SYMBOL(max_low_pfn);
#ifdef CONFIG_HIGHMEM
pte_t *kmap_pte;
EXPORT_SYMBOL(kmap_pte);