linux-kernel - Re: [syzbot] [netfilter?] net-next test error: WARNING: suspicious RCU usage in _destroy_all

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Date: Fri, 14 Jun 2024 03:18:02 -0700
From: syzbot <syzbot+cfbe1da5fdfc39efc293@...kaller.appspotmail.com>
To: kadlec@...filter.org, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [netfilter?] net-next test error: WARNING: suspicious
 RCU usage in _destroy_all_sets

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

net/netfilter/ipset/ip_set_core.c:60:4: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
net/netfilter/ipset/ip_set_core.c:60:9: error: expected ';' after top level declarator
net/netfilter/ipset/ip_set_core.c:235:2: error: call to undeclared function 'ip_set_type_lock'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
net/netfilter/ipset/ip_set_core.c:236:7: error: call to undeclared function 'find_set_type'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
net/netfilter/ipset/ip_set_core.c:240:3: error: call to undeclared function 'ip_set_type_unlock'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
net/netfilter/ipset/ip_set_core.c:246:2: error: call to undeclared function 'ip_set_type_unlock'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
net/netfilter/ipset/ip_set_core.c:905:8: error: unterminated function-like macro invocation
net/netfilter/ipset/ip_set_core.c:2453:69: error: expected expression
net/netfilter/ipset/ip_set_core.c:2453:69: error: expected '}'


Tested on:

commit:         0e728dae netfilter: ipset: Fix suspicious rcu_derefere..
git tree:       git://blackhole.szhk.kfki.hu/nf main
kernel config:  https://syzkaller.appspot.com/x/.config?x=7266aeba025a54a4
dashboard link: https://syzkaller.appspot.com/bug?extid=cfbe1da5fdfc39efc293
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.