enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/isdn/mISDN/l1oip.h
..
..
@@ -59,6 +59,7 @@
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 	int			bundle;		/* bundle channels in one frm */
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 	int			codec;		/* codec to use for transmis. */
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 	int			limit;		/* limit number of bchannels */
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+	bool			shutdown;	/* if card is released */
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 	/* timer */
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 	struct timer_list	keep_tl;