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tty: n_gsm: Modify CR,PF bit printk info when config requester
When n_gsm config "initiator=0",as requester,gsmld receives dlci SABM/DISC control command frame,UA frame printk info is error. Example: Gsmld send UA frame "f9 03 73 01 d7 f9",but CR,PF bit printk info looks like error. Kernel test log as follows: Before modify [ 78.837626] c0 gsmld_receive: 00000000: f9 03 3f 01 1c f9 [ 78.846356] c0 <-- 0) C: SABM(P) [ 78.854021] c0 gsmld_output: 00000000: f9 03 73 01 d7 f9 [ 78.862574] c0 --> 0) C: UA(P) After modify [ 261.233188] c0 gsmld_receive: 00000000: f9 03 3f 01 1c f9 [ 261.242767] c0 <-- 0) C: SABM(P) [ 261.250497] c0 gsmld_output: 00000000: f9 03 73 01 d7 f9 [ 261.259759] c0 --> 0) R: UA(F) Signed-off-by: Zhenguo Zhao <Zhenguo.Zhao1@unisoc.com> Link: https://lore.kernel.org/r/1629461872-26965-4-git-send-email-zhenguo6858@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -587,6 +587,10 @@ static void gsm_send(struct gsm_mux *gsm, int addr, int cr, int control)
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return;
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}
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gsmld_output(gsm, cbuf, len);
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if (!gsm->initiator) {
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cr = cr & gsm->initiator;
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control = control & ~PF;
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}
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gsm_print_packet("-->", addr, cr, control, NULL, 0);
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}
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