commit d47fb4ec7e101a63754939fa49d75fd7e81e94f8
Author: Ashutosh Dixit <ashutosh.dixit@intel.com>
Date:   Thu Dec 4 13:27:29 2014 -0800

    Documentation: Build mic/mpssd only for x86_64
    
    mic/mpssd along with MIC drivers are currently only usable on
    x86_64. So build mic/mpssd only for x86_64 to avoid build breaks on
    big-endian systems.
    
    Reported-by: Daniel Borkmann <dborkman@redhat.com>
    Reported-by: Dan Streetman <ddstreet@gmail.com>
    Suggested-by: Peter Foley <pefoley2@pefoley.com>
    Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
    Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/mic/mpssd/Makefile b/Documentation/mic/mpssd/Makefile
index 0f31568..f47fe6b 100644
--- a/Documentation/mic/mpssd/Makefile
+++ b/Documentation/mic/mpssd/Makefile
@@ -1,5 +1,5 @@
 # List of programs to build
-hostprogs-y := mpssd
+hostprogs-$(CONFIG_X86_64) := mpssd

 mpssd-objs := mpssd.o sysfs.o