Merge branch master from git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Pick up the spectre documentation so the Grand Schemozzle can be added.

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc arch/x86/entry/calling.h
Simple merge

diff --cc arch/x86/entry/entry_64.S
index b043c75,3f5a978..be9ca19
--- 1/arch/x86/entry/entry_64.S
--- 2/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@@ -1292,20 -1299,9 +1309,11 @@@ ENTRY(error_entry
        movq    %rax, %rsp                      /* switch stack */
        ENCODE_FRAME_POINTER
        pushq   %r12
- 
-       /*
-        * We need to tell lockdep that IRQs are off.  We can't do this until
-        * we fix gsbase, and we should do it before enter_from_user_mode
-        * (which can take locks).
-        */
-       TRACE_IRQS_OFF
-       CALL_enter_from_user_mode
        ret
  
 +.Lerror_entry_done_lfence:
 +      FENCE_SWAPGS_KERNEL_ENTRY
  .Lerror_entry_done:
-       TRACE_IRQS_OFF
        ret
  
        /*

diff --cc arch/x86/kernel/cpu/bugs.c
Simple merge

diff --cc arch/x86/kernel/cpu/common.c
Simple merge