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From:   Ben Hutchings <ben@decadent.org.uk>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
CC:     akpm@linux-foundation.org, "Peter Zijlstra" <peterz@infradead.org>,
        bp@alien8.de, dwmw@amazon.co.uk, dave.hansen@linux.intel.com,
        "Joe Konno" <joe.konno@linux.intel.com>,
        gregkh@linuxfoundation.org, "Ingo Molnar" <mingo@kernel.org>,
        "Thomas Gleixner" <tglx@linutronix.de>,
        "Linus Torvalds" <torvalds@linux-foundation.org>, hpa@zytor.com,
        jpoimboe@redhat.com, arjan@linux.intel.com, luto@kernel.org,
        dwmw2@infradead.org, dan.j.williams@intel.com,
        linux-tip-commits@vger.kernel.org
Date:   Thu, 07 Jun 2018 15:05:21 +0100
Message-ID: <lsq.1528380321.127544642@decadent.org.uk>
Subject: [PATCH 3.16 239/410] x86/speculation: Add <asm/msr-index.h>
 dependency
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Sender: linux-kernel-owner@vger.kernel.org
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3.16.57-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Zijlstra <peterz@infradead.org>

commit ea00f301285ea2f07393678cd2b6057878320c9d upstream.

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@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arjan@linux.intel.com
Cc: bp@alien8.de
Cc: dan.j.williams@intel.com
Cc: dave.hansen@linux.intel.com
Cc: dwmw2@infradead.org
Cc: dwmw@amazon.co.uk
Cc: gregkh@linuxfoundation.org
Cc: hpa@zytor.com
Cc: jpoimboe@redhat.com
Cc: linux-tip-commits@vger.kernel.org
Cc: luto@kernel.org
Fixes: 20ffa1caecca ("x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support")
Link: http://lkml.kernel.org/r/20180213132819.GJ25201@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 arch/x86/include/asm/nospec-branch.h | 1 +
 1 file changed, 1 insertion(+)

--- 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/cpufeature.h>
+#include <asm/msr-index.h>
 
 /*
  * Fill the CPU return stack buffer.