X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=arch%2FKconfig;h=1455579791ec02514a5d616a4b6749cbec3185b0;hb=72ec35163f9f728ba1579fd80682e51e933dfa8a;hp=dcd91a85536a631057cd7cabec89583b63e1f468;hpb=527c680f7c36ff17d49efc99632232dba3549c51;p=firefly-linux-kernel-4.4.55.git

diff --git a/arch/Kconfig b/arch/Kconfig
index dcd91a85536a..1455579791ec 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -103,6 +103,22 @@ config UPROBES
 
 	  If in doubt, say "N".
 
+config HAVE_64BIT_ALIGNED_ACCESS
+	def_bool 64BIT && !HAVE_EFFICIENT_UNALIGNED_ACCESS
+	help
+	  Some architectures require 64 bit accesses to be 64 bit
+	  aligned, which also requires structs containing 64 bit values
+	  to be 64 bit aligned too. This includes some 32 bit
+	  architectures which can do 64 bit accesses, as well as 64 bit
+	  architectures without unaligned access.
+
+	  This symbol should be selected by an architecture if 64 bit
+	  accesses are required to be 64 bit aligned in this way even
+	  though it is not a 64 bit architecture.
+
+	  See Documentation/unaligned-memory-access.txt for more
+	  information on the topic of unaligned memory accesses.
+
 config HAVE_EFFICIENT_UNALIGNED_ACCESS
 	bool
 	help
@@ -303,13 +319,6 @@ config ARCH_WANT_OLD_COMPAT_IPC
 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 	bool
 
-config HAVE_VIRT_TO_BUS
-	bool
-	help
-	  An architecture should select this if it implements the
-	  deprecated interface virt_to_bus().  All new architectures
-	  should probably not select this.
-
 config HAVE_ARCH_SECCOMP_FILTER
 	bool
 	help