add support 4g -- >ppp

hc

2023-11-24 2b26ab132d1b33b91c84c6d732456200e8c5ee77

 kernel/include/linux/rbtree.h
..
..
@@ -31,7 +31,7 @@
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 #include <linux/kernel.h>
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 #include <linux/stddef.h>
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-#include <linux/rcupdate.h>
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+#include <linux/rcu_assign_pointer.h>
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 struct rb_node {
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 	unsigned long  __rb_parent_color;