Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Peter Anvin:
 "This series fixes a couple of build failures, and fixes MTRR cleanup
  and memory setup on very specific memory maps.

  Finally, it fixes triggering backtraces on all CPUs, which was
  inadvertently disabled on x86."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Fix dummy variable buffer allocation
  x86: Fix trigger_all_cpu_backtrace() implementation
  x86: Fix section mismatch on load_ucode_ap
  x86: fix build error and kconfig for ia32_emulation and binfmt
  range: Do not add new blank slot with add_range_with_merge
  x86, mtrr: Fix original mtrr range get for mtrr_cleanup

2 files changed, 5 insertions, 4 deletions

diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index 31cb9ae992b7..a698d7165c96 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -9,6 +9,7 @@
  *
  */
 #include <asm/apic.h>
+#include <asm/nmi.h>
 
 #include <linux/cpumask.h>
 #include <linux/kdebug.h>
diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c
index 35ffda5d0727..5f90b85ff22e 100644
--- a/arch/x86/kernel/cpu/mtrr/cleanup.c
+++ b/arch/x86/kernel/cpu/mtrr/cleanup.c
@@ -714,15 +714,15 @@ int __init mtrr_cleanup(unsigned address_bits)
         if (mtrr_tom2)
                 x_remove_size = (mtrr_tom2 >> PAGE_SHIFT) - x_remove_base;
 
-        nr_range = x86_get_mtrr_mem_range(range, 0, x_remove_base, x_remove_size);
         /*
          * [0, 1M) should always be covered by var mtrr with WB
          * and fixed mtrrs should take effect before var mtrr for it:
          */
-        nr_range = add_range_with_merge(range, RANGE_NUM, nr_range, 0,
+        nr_range = add_range_with_merge(range, RANGE_NUM, 0, 0,
                                         1ULL<<(20 - PAGE_SHIFT));
-        /* Sort the ranges: */
-        sort_range(range, nr_range);
+        /* add from var mtrr at last */
+        nr_range = x86_get_mtrr_mem_range(range, nr_range,
+                                          x_remove_base, x_remove_size);
 
         range_sums = sum_ranges(range, nr_range);
         printk(KERN_INFO "total RAM covered: %ldM\n",