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Diffstat (limited to 'arch/powerpc/mm/init_64.c')
-rw-r--r--arch/powerpc/mm/init_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 05b0d584e50b..fe1b83020e0d 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -189,7 +189,7 @@ static bool altmap_cross_boundary(struct vmem_altmap *altmap, unsigned long star
unsigned long nr_pfn = page_size / sizeof(struct page);
unsigned long start_pfn = page_to_pfn((struct page *)start);
- if ((start_pfn + nr_pfn) > altmap->end_pfn)
+ if ((start_pfn + nr_pfn - 1) > altmap->end_pfn)
return true;
if (start_pfn < altmap->base_pfn)