[PATCH] alpha: pgprot_uncached() comment
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-alpha/pgtable.h b/include/asm-alpha/pgtable.h
index e139463..22b53e3 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)
/*