Merge tag 'arc-v3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC changes from Vineet Gupta:
 - IPI optimization and cleanups
 - Support for bootloader provided external Device Tree blobs

* tag 'arc-v3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [cmdline] support External Device Trees from u-boot
  ARC: [cmdline] uboot cmdline handling rework
  ARC: [SMP] optimize IPI send and receive
  ARC: [SMP] simplify IPI code
  ARC: [SMP] cpu halt interface doesn't need "self" cpu-id
  ARC: [SMP] IPI ACK interface doesn't need "self" cpu-id
  ARC: [SMP] cpumask not needed in IPI send path

diff --combined arch/arc/Kconfig
index 5438cab,c1f76f7..9be30c8
--- 1/arch/arc/Kconfig
--- 2/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@@ -128,8 -128,8 +128,8 @@@ config SM
        default n
        help
          This enables support for systems with more than one CPU. If you have
 -        a system with only one CPU, like most personal computers, say N. If
 -        you have a system with more than one CPU, say Y.
 +        a system with only one CPU, say N. If you have a system with more
 +        than one CPU, say Y.
  
  if SMP
  
@@@ -409,17 -409,6 +409,6 @@@ config ARC_DBG_TLB_MISS_COUN
          Counts number of I and D TLB Misses and exports them via Debugfs
          The counters can be cleared via Debugfs as well
  
- config CMDLINE_UBOOT
-       bool "Support U-boot kernel command line passing"
-       default n
-       help
-         If you are using U-boot (www.denx.de) and wish to pass the kernel
-         command line from the U-boot environment to the Linux kernel then
-         switch this option on.
-         ARC U-boot will setup the cmdline in RAM/flash and set r2 to point
-         to it. kernel startup code will append this to DeviceTree
-         /bootargs provided cmdline args.
- 
  config ARC_BUILTIN_DTB_NAME
        string "Built in DTB"
        help