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-rw-r--r--arch/mips/mm/init.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index e9951c0e689..8800c88cbbf 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -351,18 +351,15 @@ void __init paging_init(void)
351#endif 351#endif
352 kmap_coherent_init(); 352 kmap_coherent_init();
353 353
354#ifdef CONFIG_ISA 354#ifdef CONFIG_ZONE_DMA
355 if (max_low_pfn >= MAX_DMA_PFN) 355 if (min_low_pfn < MAX_DMA_PFN && MAX_DMA_PFN <= max_low_pfn) {
356 if (min_low_pfn >= MAX_DMA_PFN) { 356 zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn;
357 zones_size[ZONE_DMA] = 0; 357 zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN;
358 zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn; 358 } else if (max_low_pfn < MAX_DMA_PFN)
359 } else { 359 zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
360 zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn;
361 zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN;
362 }
363 else 360 else
364#endif 361#endif
365 zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn; 362 zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn;
366 363
367#ifdef CONFIG_HIGHMEM 364#ifdef CONFIG_HIGHMEM
368 zones_size[ZONE_HIGHMEM] = highend_pfn - highstart_pfn; 365 zones_size[ZONE_HIGHMEM] = highend_pfn - highstart_pfn;