[PATCH 3/6] selftests/run_kselftest.sh: Resolve BASE_DIR with pwd -P

[Ricardo B. Marlière]

run_kselftest.sh only needs to canonicalize the directory containing the
script itself. Use shell-native path resolution for that by changing into
the directory and calling pwd -P.

This avoids depending on either realpath or readlink -f while still
producing a physical absolute path for BASE_DIR.

Signed-off-by: Ricardo B. Marlière <rbm@xxxxxxxx>
---
 tools/testing/selftests/run_kselftest.sh | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/tools/testing/selftests/run_kselftest.sh b/tools/testing/selftests/run_kselftest.sh
index b782b025d002..5f7bce9a640b 100755
--- a/tools/testing/selftests/run_kselftest.sh
+++ b/tools/testing/selftests/run_kselftest.sh
@@ -4,12 +4,7 @@
 # Run installed kselftest tests.
 #
 
-# Fallback to readlink if realpath is not available
-if which realpath > /dev/null; then
-        BASE_DIR=$(realpath $(dirname $0))
-else
-        BASE_DIR=$(readlink -f $(dirname $0))
-fi
+BASE_DIR=$(cd "$(dirname "$0")" && pwd -P)
 
 cd "$BASE_DIR"
 TESTS="$BASE_DIR"/kselftest-list.txt

-- 
2.53.0