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[ Upstream commit 97fe22adf3 ]
Al Viro discovered a bug in the glob ftrace filtering code where "*a*b" is
treated the same as "a*b", and functions that would be selected by "*a*b"
but not "a*b" are not selected with "*a*b".
Add tests for patterns "*a*b" and "a*b*" to the glob selftest.
Link: http://lkml.kernel.org/r/20180127170748.GF13338@ZenIV.linux.org.uk
Cc: Shuah Khan <shuah@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>