On 2016년 05월 26일 19:51, Dan Carpenter wrote:

Signed-off-by is like signing a legal document to say that you haven't
stolen any of the code from SCO Unix.  Please don't put sign for other
people.

You're right. I'm forcing to put the Sign-off. It is just example.

But, I still think that patch description including the engineer's name is not appropriate
to give the credit someone.

Thanks,
Chanwoo Choi