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Message-Id: <20230215223350.2658616-4-zwisler@google.com>
Date:   Wed, 15 Feb 2023 15:33:47 -0700
From:   Ross Zwisler <zwisler@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ross Zwisler <zwisler@...gle.com>,
        "Tobin C. Harding" <me@...in.cc>,
        Tycho Andersen <tycho@...ho.pizza>,
        linux-hardening@...r.kernel.org,
        linux-trace-kernel@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v2 3/6] leaking_addresses: also skip canonical ftrace path

The canonical location for the tracefs filesystem is at /sys/kernel/tracing.

But, from Documentation/trace/ftrace.rst:

  Before 4.1, all ftrace tracing control files were within the debugfs
  file system, which is typically located at /sys/kernel/debug/tracing.
  For backward compatibility, when mounting the debugfs file system,
  the tracefs file system will be automatically mounted at:

  /sys/kernel/debug/tracing

scripts/leaking_addresses.pl only skipped this older debugfs path, so
let's add the canonical path as well.

Signed-off-by: Ross Zwisler <zwisler@...gle.com>
Acked-by: Tycho Andersen <tycho@...ho.pizza>
---
 scripts/leaking_addresses.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl
index 8f636a23bc3f..e695634d153d 100755
--- a/scripts/leaking_addresses.pl
+++ b/scripts/leaking_addresses.pl
@@ -61,6 +61,7 @@ my @skip_abs = (
 	'/proc/device-tree',
 	'/proc/1/syscall',
 	'/sys/firmware/devicetree',
+	'/sys/kernel/tracing/trace_pipe',
 	'/sys/kernel/debug/tracing/trace_pipe',
 	'/sys/kernel/security/apparmor/revision');
 
-- 
2.39.1.637.g21b0678d19-goog

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