On Sun, 13 Apr 2025 01:26:10 +0800 lvxiafei wrote: > +static inline unsigned int nf_conntrack_max(const struct net *net) > +{ > + return likely(init_net.ct.sysctl_max && net->ct.sysctl_max) ? > + min(init_net.ct.sysctl_max, net->ct.sysctl_max) : > + max(init_net.ct.sysctl_max, net->ct.sysctl_max); If you CC netdev@ please do not post multiple versions a day. Please wait with posting v6 until you get some feedback (and this email does not count). You need to be careful with the Kconfig, this file may be included when contrack is not built: In file included from ./include/linux/kernel.h:28, from ./include/linux/cpumask.h:11, from ./arch/x86/include/asm/cpumask.h:5, from ./arch/x86/include/asm/msr.h:11, from ./arch/x86/include/asm/tsc.h:10, from ./arch/x86/include/asm/timex.h:6, from ./include/linux/timex.h:67, from ./include/linux/time32.h:13, from ./include/linux/time.h:60, from ./include/linux/compat.h:10, from ./include/linux/ethtool.h:17, from drivers/net/vrf.c:12: include/net/netfilter/nf_conntrack.h:365:25: error: ‘struct net’ has no member named ‘ct’ 365 | min(init_net.ct.sysctl_max, net->ct.sysctl_max) : | ^