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-rw-r--r--include/asm-alpha/pgtable.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-alpha/pgtable.h b/include/asm-alpha/pgtable.h
index e139463d9a0..22b53e369f5 100644
--- a/include/asm-alpha/pgtable.h
+++ b/include/asm-alpha/pgtable.h
@@ -132,6 +132,10 @@
#define __S110 _PAGE_S(0)
#define __S111 _PAGE_S(0)
+/*
+ * pgprot_noncached() is only for infiniband pci support, and a real
+ * implementation for RAM would be more complicated.
+ */
#define pgprot_noncached(prot) (prot)
/*