66 lines
2.1 KiB
Diff
66 lines
2.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
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Date: Thu, 12 Oct 2017 18:06:19 -0400
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Subject: [PATCH] x86/fpu/debug: Remove unused 'x86_fpu_state' and
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'x86_fpu_deactivate_state' tracepoints
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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CVE-2017-5754
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Commit:
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d1898b733619 ("x86/fpu: Add tracepoints to dump FPU state at key points")
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... added the 'x86_fpu_state' and 'x86_fpu_deactivate_state' trace points,
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but never used them. Today they are still not used. As they take up
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and waste memory, remove them.
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Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Cc: Dave Hansen <dave.hansen@linux.intel.com>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>
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Cc: Peter Zijlstra <peterz@infradead.org>
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Cc: Thomas Gleixner <tglx@linutronix.de>
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Link: http://lkml.kernel.org/r/20171012180619.670b68b6@gandalf.local.home
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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(cherry picked from commit 127a1bea40f7f2a36bc7207ea4d51bb6b4e936fa)
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Signed-off-by: Andy Whitcroft <apw@canonical.com>
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Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
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(cherry picked from commit c7c367ddb6ffb6af2cfee287960e97c4aefc6548)
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Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
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---
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arch/x86/include/asm/trace/fpu.h | 10 ----------
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1 file changed, 10 deletions(-)
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diff --git a/arch/x86/include/asm/trace/fpu.h b/arch/x86/include/asm/trace/fpu.h
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index 342e59789fcd..fed7d9ecae60 100644
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--- a/arch/x86/include/asm/trace/fpu.h
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+++ b/arch/x86/include/asm/trace/fpu.h
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@@ -36,11 +36,6 @@ DECLARE_EVENT_CLASS(x86_fpu,
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)
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);
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-DEFINE_EVENT(x86_fpu, x86_fpu_state,
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- TP_PROTO(struct fpu *fpu),
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- TP_ARGS(fpu)
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-);
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-
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DEFINE_EVENT(x86_fpu, x86_fpu_before_save,
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TP_PROTO(struct fpu *fpu),
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TP_ARGS(fpu)
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@@ -76,11 +71,6 @@ DEFINE_EVENT(x86_fpu, x86_fpu_activate_state,
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TP_ARGS(fpu)
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);
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-DEFINE_EVENT(x86_fpu, x86_fpu_deactivate_state,
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- TP_PROTO(struct fpu *fpu),
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- TP_ARGS(fpu)
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-);
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-
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DEFINE_EVENT(x86_fpu, x86_fpu_init_state,
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TP_PROTO(struct fpu *fpu),
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TP_ARGS(fpu)
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--
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2.14.2
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