selftests: ftrace: Check given string is not zero-length
Use [ ! -z "$VAR" ] instead of [ "$VAR" ] to check whether the given string variable is not zero-length since it obviously shows what it means. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Steven Rostedt (VMware) <srostedt@goodmis.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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@ -8,7 +8,7 @@
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# Released under the terms of the GPL v2.
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# Released under the terms of the GPL v2.
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usage() { # errno [message]
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usage() { # errno [message]
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[ "$2" ] && echo $2
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[ ! -z "$2" ] && echo $2
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echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
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echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
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echo " Options:"
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echo " Options:"
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echo " -h|--help Show help message"
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echo " -h|--help Show help message"
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@ -50,7 +50,7 @@ parse_opts() { # opts
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local OPT_TEST_CASES=
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local OPT_TEST_CASES=
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local OPT_TEST_DIR=
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local OPT_TEST_DIR=
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while [ "$1" ]; do
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while [ ! -z "$1" ]; do
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case "$1" in
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case "$1" in
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--help|-h)
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--help|-h)
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usage 0
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usage 0
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@ -96,7 +96,7 @@ parse_opts() { # opts
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;;
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;;
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esac
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esac
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done
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done
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if [ "$OPT_TEST_CASES" ]; then
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if [ ! -z "$OPT_TEST_CASES" ]; then
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TEST_CASES=$OPT_TEST_CASES
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TEST_CASES=$OPT_TEST_CASES
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fi
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fi
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}
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}
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