函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\net\dst.h Create Date:2022-07-27 07:06:13
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：skb_tunnel_check_pmtu

函数原型：static inline void skb_tunnel_check_pmtu(struct sk_buff *skb, struct dst_entry *encap_dst, int headroom)

返回类型：void

参数：

类型参数名称
struct sk_buff *skb
struct dst_entry *encap_dst
intheadroom
535  encap_mtu等于dst_mtu(encap_dst)
537  如果len大于encap_mtu减headroom则pdate dst pmtu but not do neighbor confirm