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Message-Id: <20190829105009.2265-19-sashal@kernel.org>
Date:   Thu, 29 Aug 2019 06:49:59 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Nicolas Boichat <drinkcat@...omium.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.19 19/29] scripts/decode_stacktrace: match basepath using shell prefix operator, not regex

From: Nicolas Boichat <drinkcat@...omium.org>

[ Upstream commit 31013836a71e07751a6827f9d2ad41ef502ddaff ]

The basepath may contain special characters, which would confuse the regex
matcher.  ${var#prefix} does the right thing.

Link: http://lkml.kernel.org/r/20190518055946.181563-1-drinkcat@chromium.org
Fixes: 67a28de47faa8358 ("scripts/decode_stacktrace: only strip base path when a prefix of the path")
Signed-off-by: Nicolas Boichat <drinkcat@...omium.org>
Reviewed-by: Stephen Boyd <swboyd@...omium.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 scripts/decode_stacktrace.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index c4a9ddb174bc5..5aa75a0a1cede 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -78,7 +78,7 @@ parse_symbol() {
 	fi
 
 	# Strip out the base of the path
-	code=${code//^$basepath/""}
+	code=${code#$basepath/}
 
 	# In the case of inlines, move everything to same line
 	code=${code//$'\n'/' '}
-- 
2.20.1

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