修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/include/linux/list_bl.h
..
..
@@ -86,6 +86,32 @@
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 	hlist_bl_set_first(h, n);
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 }
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+static inline void hlist_bl_add_before(struct hlist_bl_node *n,
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+				       struct hlist_bl_node *next)
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+{
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+	struct hlist_bl_node **pprev = next->pprev;
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+
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+	n->pprev = pprev;
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+	n->next = next;
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+	next->pprev = &n->next;
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+
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+	/* pprev may be `first`, so be careful not to lose the lock bit */
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+	WRITE_ONCE(*pprev,
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+		   (struct hlist_bl_node *)
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+			((uintptr_t)n | ((uintptr_t)*pprev & LIST_BL_LOCKMASK)));
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+}
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+
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+static inline void hlist_bl_add_behind(struct hlist_bl_node *n,
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+				       struct hlist_bl_node *prev)
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+{
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+	n->next = prev->next;
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+	n->pprev = &prev->next;
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+	prev->next = n;
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+
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+	if (n->next)
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+		n->next->pprev = &n->next;
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+}
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+
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 static inline void __hlist_bl_del(struct hlist_bl_node *n)
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 {
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 	struct hlist_bl_node *next = n->next;