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cbff2b3251
When n_gsm config "initiator=0",as requester ,it doesn't need to send SABM frame data during gsmtty open. Example,when gsmtty open,it will send SABM frame.for initiator,it maybe not want to receive the frame. [ 88.410426] c1 gsmld_output: 00000000: f9 07 3f 01 de f9 [ 88.420839] c1 --> 1) R: SABM(F) Signed-off-by: Zhenguo Zhao <Zhenguo.Zhao1@unisoc.com> Link: https://lore.kernel.org/r/1629461872-26965-6-git-send-email-zhenguo6858@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>