[PATCH 3/3] tests/shell: Fix shellcheck warnings for SC2153 in multiple scripts

[Athira Rajeev <atrajeev@linux.vnet.ibm.com>]

Running shellcheck on some of the shell scripts, throws
below warning on shellcheck v0.6. Example:

   In tests/shell/coresight/asm_pure_loop.sh line 14:
   DATA="$DATD/perf-$TEST-$DATV.data"
          ^---^ SC2153: Possible misspelling: DATD may not be assigned, but DATA is.

Here, DATD is exported from "lib/coresight.sh" and this
warning can be ignored. Use "shellcheck disable=" to ignore
this check.

Signed-off-by:  Athira Rajeev <atrajeev@linux.vnet.ibm.com>
---
 tools/perf/tests/shell/coresight/asm_pure_loop.sh            | 1 +
 tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh     | 1 +
 tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh | 1 +
 tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh  | 1 +
 tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh    | 1 +
 5 files changed, 5 insertions(+)

diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop.sh b/tools/perf/tests/shell/coresight/asm_pure_loop.sh
index 04387061e9f3..2d65defb7e0f 100755
--- a/tools/perf/tests/shell/coresight/asm_pure_loop.sh
+++ b/tools/perf/tests/shell/coresight/asm_pure_loop.sh
@@ -11,6 +11,7 @@ TEST="asm_pure_loop"
 
 ARGS=""
 DATV="out"
+# shellcheck disable=SC2153
 DATA="$DATD/perf-$TEST-$DATV.data"
 
 perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
diff --git a/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh b/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh
index c17e442ac741..ddcc9bb850f5 100755
--- a/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh
+++ b/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh
@@ -11,6 +11,7 @@ TEST="memcpy_thread"
 
 ARGS="16 10 1"
 DATV="16k_10"
+# shellcheck disable=SC2153
 DATA="$DATD/perf-$TEST-$DATV.data"
 
 perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
diff --git a/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh b/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh
index e47c4e955d0e..2ce5e139b2fd 100755
--- a/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh
+++ b/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh
@@ -11,6 +11,7 @@ TEST="thread_loop"
 
 ARGS="10 1"
 DATV="check-tid-10th"
+# shellcheck disable=SC2153
 DATA="$DATD/perf-$TEST-$DATV.data"
 STDO="$DATD/perf-$TEST-$DATV.stdout"
 
diff --git a/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh b/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh
index 8bf94a02e384..3ad9498753d7 100755
--- a/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh
+++ b/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh
@@ -11,6 +11,7 @@ TEST="thread_loop"
 
 ARGS="2 20"
 DATV="check-tid-2th"
+# shellcheck disable=SC2153
 DATA="$DATD/perf-$TEST-$DATV.data"
 STDO="$DATD/perf-$TEST-$DATV.stdout"
 
diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh b/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh
index 0dc9ef424233..4fbb4a29aad3 100755
--- a/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh
+++ b/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh
@@ -11,6 +11,7 @@ TEST="unroll_loop_thread"
 
 ARGS="10"
 DATV="10"
+# shellcheck disable=SC2153
 DATA="$DATD/perf-$TEST-$DATV.data"
 
 perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
-- 
2.31.1