pve-edge-kernel/patches/kernel/0062-x86-fpu-debug-Remove-unused-x86_fpu_state-and-x86_fp.patch

From bc21c74b922871588bf6626bff34fa084ed60d71 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <[email protected]>
Date: Thu, 12 Oct 2017 18:06:19 -0400
Subject: [PATCH 062/231] x86/fpu/debug: Remove unused 'x86_fpu_state' and
 'x86_fpu_deactivate_state' tracepoints
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CVE-2017-5754

Commit:

  d1898b733619 ("x86/fpu: Add tracepoints to dump FPU state at key points")

... added the 'x86_fpu_state' and 'x86_fpu_deactivate_state' trace points,
but never used them. Today they are still not used. As they take up
and waste memory, remove them.

Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
(cherry picked from commit 127a1bea40f7f2a36bc7207ea4d51bb6b4e936fa)
Signed-off-by: Andy Whitcroft <[email protected]>
Signed-off-by: Kleber Sacilotto de Souza <[email protected]>
(cherry picked from commit c7c367ddb6ffb6af2cfee287960e97c4aefc6548)
Signed-off-by: Fabian Grünbichler <[email protected]>
---
 arch/x86/include/asm/trace/fpu.h | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/x86/include/asm/trace/fpu.h b/arch/x86/include/asm/trace/fpu.h
index 342e59789fcd..fed7d9ecae60 100644
--- a/arch/x86/include/asm/trace/fpu.h
+++ b/arch/x86/include/asm/trace/fpu.h
@@ -36,11 +36,6 @@ DECLARE_EVENT_CLASS(x86_fpu,
 	)
 );
 
-DEFINE_EVENT(x86_fpu, x86_fpu_state,
-	TP_PROTO(struct fpu *fpu),
-	TP_ARGS(fpu)
-);
-
 DEFINE_EVENT(x86_fpu, x86_fpu_before_save,
 	TP_PROTO(struct fpu *fpu),
 	TP_ARGS(fpu)
@@ -76,11 +71,6 @@ DEFINE_EVENT(x86_fpu, x86_fpu_activate_state,
 	TP_ARGS(fpu)
 );
 
-DEFINE_EVENT(x86_fpu, x86_fpu_deactivate_state,
-	TP_PROTO(struct fpu *fpu),
-	TP_ARGS(fpu)
-);
-
 DEFINE_EVENT(x86_fpu, x86_fpu_init_state,
 	TP_PROTO(struct fpu *fpu),
 	TP_ARGS(fpu)
-- 
2.14.2