[tip:x86/pti] x86/speculation: Add <asm/msr-index.h> dependency

[tip-bot for Peter Zijlstra]

Commit-ID:  ea00f301285ea2f07393678cd2b6057878320c9d
Gitweb:     https://git.kernel.org/tip/ea00f301285ea2f07393678cd2b6057878320c9d
Author:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Tue, 13 Feb 2018 14:28:19 +0100
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Thu, 15 Feb 2018 01:15:51 +0100

x86/speculation: Add <asm/msr-index.h> dependency

Joe Konno reported a compile failure resulting from using an MSR
without inclusion of <asm/msr-index.h>, and while the current code builds
fine (by accident) this needs fixing for future patches.

Reported-by: Joe Konno <joe.konno@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: arjan@xxxxxxxxxxxxxxx
Cc: bp@xxxxxxxxx
Cc: dan.j.williams@xxxxxxxxx
Cc: dave.hansen@xxxxxxxxxxxxxxx
Cc: dwmw2@xxxxxxxxxxxxx
Cc: dwmw@xxxxxxxxxxxx
Cc: gregkh@xxxxxxxxxxxxxxxxxxx
Cc: hpa@xxxxxxxxx
Cc: jpoimboe@xxxxxxxxxx
Cc: linux-tip-commits@xxxxxxxxxxxxxxx
Cc: luto@xxxxxxxxxx
Fixes: 20ffa1caecca ("x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support")
Link: http://lkml.kernel.org/r/20180213132819.GJ25201@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/include/asm/nospec-branch.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 300cc15..76b0585 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -6,6 +6,7 @@
 #include <asm/alternative.h>
 #include <asm/alternative-asm.h>
 #include <asm/cpufeatures.h>
+#include <asm/msr-index.h>
 
 #ifdef __ASSEMBLY__