linux-kernel - [PATCH] coccinelle: fix verbose message about .cocci file being run

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Date:   Thu, 26 Oct 2017 13:55:51 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     cocci@...teme.lip6.fr, linux-kbuild@...r.kernel.org,
        Julia Lawall <Julia.Lawall@...6.fr>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        linux-kernel@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: [PATCH] coccinelle: fix verbose message about .cocci file being run

If you run coccicheck with V=1 and COCCI=, you will see a strange
path to the semantic patch file.  For example, run the following:

$ make V=1 COCCI=scripts/coccinelle/free/kfree.cocci coccicheck
  [ snip ]
 The semantic patch that makes this report is available
 in scriptcoccinelle/free/kfree.cocci.

Notice "s/" was dropped from "scripts/coccinelle/free/kfree.cocci".

When running coccicheck without O=, $srctree is expanded to ".", which
represents one arbitrary character in the regular expression.  Using
sed is not a good choice here.  Strip $srctree/ simply without sed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 scripts/coccicheck | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/coccicheck b/scripts/coccicheck
index 1bfa2d2..9d18662 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -186,7 +186,7 @@ coccinelle () {

     if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then

-	FILE=`echo $COCCI | sed "s|$srctree/||"`
+	FILE=${COCCI#$srctree/}

 	echo "Processing `basename $COCCI`"
 	echo "with option(s) \"$OPT\""
-- 
2.7.4