1 files changed, 2 insertions, 4 deletions

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 195bfcd0895..eb505ad34a8 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -528,12 +528,10 @@ static unsigned long __init numa_enforce_memory_limit(unsigned long start,
         /*
          * We use lmb_end_of_DRAM() in here instead of memory_limit because
          * we've already adjusted it for the limit and it takes care of
-         * having memory holes below the limit.
+         * having memory holes below the limit.  Also, in the case of
+         * iommu_is_off, memory_limit is not set but is implicitly enforced.
          */
 
-        if (! memory_limit)
-                return size;
-
         if (start + size <= lmb_end_of_DRAM())
                 return size;