enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/net/mii.c
..
..
@@ -597,7 +597,7 @@
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 	switch(cmd) {
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 	case SIOCGMIIPHY:
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 		mii_data->phy_id = mii_if->phy_id;
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-		/* fall through */
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+		fallthrough;
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 	case SIOCGMIIREG:
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 		mii_data->val_out =