From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 09DDF7DA81 for ; Wed, 11 Sep 2024 10:15:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726049720; cv=none; b=sd88sd3MvXQCsSXKgps6EKQ0fhGLbtyxDJ4Op8uq5MD/jvfvN6tJDo0Ljpp9Nr2kJPslRLl1EB/R3y2wWUZpZ2egG+5MMAaCyqiTL+qbv80yXBDoGACPD55EjUFuWclbgirKJjFuUuUKGw79NJzlqs0ROhX0zU6Px0P4Va1p53M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726049720; c=relaxed/simple; bh=6mdRgcOAOg38g4ar5fllj1hp6RTVqNRmiOIkG0FNL3s=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=gMX6C/YVA70GUfPjPDHd1GMFBWjmGal56wOJ8xYJvgCo9eFqp3NZv3BqBoc3zB3G8aL6gP/4tpN+hyImR5g/AGjHArOtjN7vaN+fA0B2IYv1zcidmTOXHNJ3wGE7FNL5FtsHWhT9OhVrv6AhxTw2MwhNbcOZskp3IuOM+X49Ymw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-3a049da92a2so135372055ab.2 for ; Wed, 11 Sep 2024 03:15:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726049718; x=1726654518; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=RtC9OfChq6fLiZ43IfxDHJnr4B5z+CtpRZkAroNJhDU=; b=NFOzVpeewEWfRy00g0AeoPim17oSd5zxFEhDhGm5u6PqQQ/7U0lZXqbw9+jB8a+ifX IQkeSQmF4hgUrJ2nK+Jyrjdoyz+N0Ezg+mcxVnPYIYB9tWJYCwIxlfTl2t9Fp4xarBVC f2/nfwNJeVzyD0571uUQeFvQfSLJc7ijlcQDKO4QJk+Gn7Ca43neicAa4vGao3CgPXxx Y/FHemnduvnKBYdbf7i/8k8lrHyFvQWQQf0uUc6gZKBOnyMy7XsyQ6xofKy/3ToqM9I0 +sLU+MU78NvEIn9Ol0q7KyLSf7BtlGUTNVoAv2xMHBt4+Qu+yrS7CejanGYtBLEhE8vV D9mA== X-Gm-Message-State: AOJu0YzRRwaVeh/rGP28l/Y2PiYcWpZGqDaPa/gW7KWxtYYzbpnd5eP2 IBWOfeCXCHmDdj0Q5t3+0l+paiYg1pPbh04G49o2xA+1I652YXM92IwI1WsL9ca6yLUXYE3y3AR 9615Y3vhGyOb88kqFUWWNQ1jg7yGtlgxsvvJq/fJWoybT4fP0Qt3Bk9k= X-Google-Smtp-Source: AGHT+IEfDIXSIdAmhlko7tblts3VU/t0XjB0G5U8fNYnHVFdoJMIMgRaQQ05TTrZijQllyqsykhRPk94xoMqTVSylyNvhc13IUfo Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:198b:b0:3a0:468c:8e2c with SMTP id e9e14a558f8ab-3a0524a1ca8mr175880265ab.24.1726049718257; Wed, 11 Sep 2024 03:15:18 -0700 (PDT) Date: Wed, 11 Sep 2024 03:15:18 -0700 In-Reply-To: <0000000000000311430620013217@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000525c950621d544a1@google.com> Subject: Re: [syzbot] Re: [syzbot] [net?] possible deadlock in rtnl_lock (8) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [net?] possible deadlock in rtnl_lock (8) Author: alibuda@linux.alibaba.com #syz test Make Lockdep happy with IPPROTO_SMC --- net/smc/smc_inet.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/net/smc/smc_inet.c b/net/smc/smc_inet.c index bece346..281f0450 100644 --- a/net/smc/smc_inet.c +++ b/net/smc/smc_inet.c @@ -102,14 +102,29 @@ }; #endif /* CONFIG_IPV6 */ +static struct lock_class_key smc_clcsk_slock_keys[2]; +static struct lock_class_key smc_clcsk_keys[2]; + static int smc_inet_init_sock(struct sock *sk) { + bool is_ipv6 = sk->sk_family == AF_INET6; struct net *net = sock_net(sk); + int rc; /* init common smc sock */ smc_sk_init(net, sk, IPPROTO_SMC); /* create clcsock */ - return smc_create_clcsk(net, sk, sk->sk_family); + rc = smc_create_clcsk(net, sk, sk->sk_family); + if (rc) + return rc; + + sock_lock_init_class_and_name(smc_sk(sk)->clcsk, + is_ipv6 ? "slock-AF_INET6-SMC-CLCSK" : "slock-AF_INET-SMC-CLCSK", + &smc_clcsk_slock_keys[is_ipv6], + is_ipv6 ? "sk_lock-AF_INET6-SMC-CLCSK" : "sk_lock-AF_INET-SMC-CLCSK", + &smc_clcsk_keys[is_ipv6]); + + return 0; } int __init smc_inet_init(void) -- 1.8.3.1