Commit-ID:  b4c786e5aa69c5a75ac3932f81fdf8e8c120c03b
Gitweb:     https://git.kernel.org/tip/b4c786e5aa69c5a75ac3932f81fdf8e8c120c03b
Author:     Jiri Olsa <[email protected]>
AuthorDate: Wed, 21 Mar 2018 15:05:15 +0100
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Tue, 27 Mar 2018 13:13:38 -0300

perf build: Fix check-headers.sh opts assignment

Currently the "opts" variable is not zero-ed and we keep on adding to
it, ending up with:

  $ check-headers.sh 2>&1
  + opts=' "-B"'
  + opts=' "-B" "-B"'
  + opts=' "-B" "-B" "-B"'
  + opts=' "-B" "-B" "-B" "-B"'
  + opts=' "-B" "-B" "-B" "-B" "-B"'
  + opts=' "-B" "-B" "-B" "-B" "-B" "-B"'

Fix this by initializing it in the check() function, right before
starting the loop.

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
 tools/perf/check-headers.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index bf206ffe5c45..9aff89bc7535 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -59,6 +59,7 @@ check () {
   file=$1
 
   shift
+  opts=
   while [ -n "$*" ]; do
     opts="$opts \"$1\""
     shift

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