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Commit 5dd48a23 authored by steve@digidescorp.com's avatar steve@digidescorp.com Committed by Michal Simek
Browse files

microblaze: Fix pfn_valid() for noMMU 



Configuring DEBUG_SLAB causes a noMMU kernel to die during initialization
with an invalid virtual address panic in kfree_debugcheck().
The panic is due to an improper definition of pfn_valid().

Signed-off-by: default avatarSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent 4f911b0d

arch/microblaze/include/asm/page.h

+2 −1
Original line number Diff line number Diff line
@@ -164,7 +164,8 @@ extern int page_is_ram(unsigned long pfn); 
#  endif /* CONFIG_MMU */



#  ifndef CONFIG_MMU

#  define pfn_valid(pfn)	((pfn) >= min_low_pfn && (pfn) <= max_mapnr)

#  define pfn_valid(pfn)	(((pfn) >= min_low_pfn) && \

				((pfn) <= (min_low_pfn + max_mapnr)))

#  define ARCH_PFN_OFFSET	(PAGE_OFFSET >> PAGE_SHIFT)

#  else /* CONFIG_MMU */

#  define ARCH_PFN_OFFSET	(memory_start >> PAGE_SHIFT)