linux-kernel - [PATCH 1/4 -next] fault-injection: allow stacktrace filter for x86-64

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Date:   Wed, 17 Aug 2022 08:03:29 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Akinobu Mita <akinobu.mita@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Kees Cook <keescook@...omium.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Isabella Basso <isabbasso@...eup.net>,
        Vlastimil Babka <vbabka@...e.cz>,
        Rasmus Villemoes <linux@...musvillemoes.dk>
CC:     Wei Yongjun <weiyongjun1@...wei.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/4 -next] fault-injection: allow stacktrace filter for x86-64

FAULT_INJECTION_STACKTRACE_FILTER option was apparently disallowed on
x86_64 because of problems with the stack unwinder:

    commit 6d690dcac92a84f98fd774862628ff871b713660
    Author: Akinobu Mita <akinobu.mita@...il.com>
    Date:   Sat May 12 10:36:53 2007 -0700

        fault injection: disable stacktrace filter for x86-64

However, there is no problems whatsoever with this today. Let's allow
it again.

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 lib/Kconfig.debug | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 38d259b1d262..c6795f4656d7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1944,7 +1944,6 @@ config FAIL_SUNRPC
 config FAULT_INJECTION_STACKTRACE_FILTER
 	bool "stacktrace filter for fault-injection capabilities"
 	depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
-	depends on !X86_64
 	select STACKTRACE
 	depends on FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86
 	help
-- 
2.34.1