[PATCH net-next 4/4] tls: rx: fix the false positive warning

[Jakub Kicinski <kuba@kernel.org>]

I went too far in the accessor conversion, we can't use tls_strp_msg()
after decryption because the message may not be ready. What we care
about on this path is that the output skb is detached, i.e. we didn't
somehow just turn around and used the input skb with its TCP data
still attached. So look at the anchor directly.

Fixes: 84c61fe1a75b ("tls: rx: do not use the standard strparser")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 net/tls/tls_sw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 8bac7ea2c264..17db8c8811fa 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -2026,7 +2026,7 @@ int tls_sw_recvmsg(struct sock *sk,
 			bool partially_consumed = chunk > len;
 			struct sk_buff *skb = darg.skb;
 
-			DEBUG_NET_WARN_ON_ONCE(darg.skb == tls_strp_msg(ctx));
+			DEBUG_NET_WARN_ON_ONCE(darg.skb == ctx->strp.anchor);
 
 			if (async) {
 				/* TLS 1.2-only, to_decrypt must be text len */
-- 
2.37.1