Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Three arm64 fixes for -rc3.  They're all pretty straightforward: a
  couple of NUMA issues from the Huawei folks and a thinko in
  __page_to_voff that seems to be benign, but is certainly better off
  fixed.

  Summary:
   - couple of NUMA fixes
   - thinko in __page_to_voff"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: fix __page_to_voff definition
  arm64/numa: fix incorrect log for memory-less node
  arm64/numa: fix pcpu_cpu_distance() to get correct CPU proximity

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index ba62df8..b71086d 100644 (file)
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -217,7 +217,7 @@ static inline void *phys_to_virt(phys_addr_t x)
 #define _virt_addr_valid(kaddr)        pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 #else
 #define __virt_to_pgoff(kaddr) (((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page))
-#define __page_to_voff(kaddr)  (((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
+#define __page_to_voff(page)   (((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
 
 #define page_to_virt(page)     ((void *)((__page_to_voff(page)) | PAGE_OFFSET))
 #define virt_to_page(vaddr)    ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 778a985..4b32168 100644 (file)
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -147,7 +147,7 @@ static int __init early_cpu_to_node(int cpu)
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
 {
-       return node_distance(from, to);
+       return node_distance(early_cpu_to_node(from), early_cpu_to_node(to));
 }
 
 static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
@@ -223,8 +223,11 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
        void *nd;
        int tnid;
 
-       pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n",
-               nid, start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
+       if (start_pfn < end_pfn)
+               pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n", nid,
+                       start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
+       else
+               pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
 
        nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
        nd = __va(nd_pa);