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authorDmitry Safonov <0x7f454c46@gmail.com>2024-10-30 05:22:33 +0100
committerJakub Kicinski <kuba@kernel.org>2024-11-03 21:10:11 +0100
commit6b2d11e2d8fc130df4708be0b6b53fd3e6b54cf6 (patch)
treeb6d8000fc99731fe31738ede8c35a03f0e308c4a /include/net/tcp_ao.h
parentMerge branch 'selftest-netconsole-enhance-selftest-to-validate-userdata-trans... (diff)
downloadlinux-6b2d11e2d8fc130df4708be0b6b53fd3e6b54cf6.tar.xz
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net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals
Under CONFIG_PROVE_RCU_LIST + CONFIG_RCU_EXPERT hlist_for_each_entry_rcu() provides very helpful splats, which help to find possible issues. I missed CONFIG_RCU_EXPERT=y in my testing config the same as described in a3e4bf7f9675 ("configs/debug: make sure PROVE_RCU_LIST=y takes effect"). The fix itself is trivial: add the very same lockdep annotations as were used to dereference ao_info from the socket. Reported-by: Jakub Kicinski <kuba@kernel.org> Closes: https://lore.kernel.org/netdev/20241028152645.35a8be66@kernel.org/ Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com> Link: https://patch.msgid.link/20241030-tcp-ao-hlist-lockdep-annotate-v1-1-bf641a64d7c6@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/tcp_ao.h')
-rw-r--r--include/net/tcp_ao.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/tcp_ao.h b/include/net/tcp_ao.h
index 1d46460d0fef..df655ce6987d 100644
--- a/include/net/tcp_ao.h
+++ b/include/net/tcp_ao.h
@@ -183,7 +183,8 @@ int tcp_ao_hash_skb(unsigned short int family,
const u8 *tkey, int hash_offset, u32 sne);
int tcp_parse_ao(struct sock *sk, int cmd, unsigned short int family,
sockptr_t optval, int optlen);
-struct tcp_ao_key *tcp_ao_established_key(struct tcp_ao_info *ao,
+struct tcp_ao_key *tcp_ao_established_key(const struct sock *sk,
+ struct tcp_ao_info *ao,
int sndid, int rcvid);
int tcp_ao_copy_all_matching(const struct sock *sk, struct sock *newsk,
struct request_sock *req, struct sk_buff *skb,