net/netfilter/nf_nat_ftp.c:122:9: sparse: incorrect type in assignment (differ

Hi Patrick,

There are new sparse warnings show up in

tree:   git://150.214.188.80/nf-next nf-nat2
head:   2c59d9f21ca33d3f974f45ae1f730982a85bd908
commit: 148b7e40adbf42204617d31ea5643f11faba3d33 [7/8] netfilter: nf_nat: support IPv6 in FTP NAT helper

All sparse warnings:

+ net/netfilter/nf_nat_ftp.c:122:9: sparse: incorrect type in assignment (different address spaces)
net/netfilter/nf_nat_ftp.c:122:9: expected unsigned int ( *extern [addressable] [toplevel] nf_nat_ftp_hook )( ... )
net/netfilter/nf_nat_ftp.c:122:9: got void [noderef] <asn:4>*<noident>
+ net/netfilter/nf_nat_ftp.c:129:9: sparse: cannot dereference this type

vim +122 net/netfilter/nf_nat_ftp.c
119
120 static void __exit nf_nat_ftp_fini(void)
121 {

123 synchronize_rcu();
124 }
125

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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu <[email protected]> Intel Corporation