From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) (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 9BF0D3A48F6 for ; Thu, 8 Oct 2026 02:29:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791426552; cv=none; b=iONMc06vqv9vK4aQ38yqD2+5+Z2L1DDyrn3r8IPUFV1PFDqrpGShJCw8Xd67u5eZPgDXW+2UGJnq7MtpQqfSAYphGtwlCS9NegnqyHPkkK6NFmjgq0UJh3qHYHyhmobVSKo/kIUf7pZvSlBXsK5VK9tpN/KSMI3RxLNBVK27Ozs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791426552; c=relaxed/simple; bh=nU9QI7lMrwi5fwz2h6IFe8s3YbLmKmlNRTkcI+D/iCQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IbjG2U57IKhY3OygHhg4hKStqgpdqB97ACEtHBXCHk7KbWMJ9/1UP4k9pqt+h4VFBDo6+Y2ucQelblnonriGsdgnH/87cBsiqRVbtlgVRz17WCxbSPlptzLjJjMyMwvhR2ET3xD5C7OsdARToDKOnJyC7TOXi7Nf6wv+rcuWg0o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=AmvxIQ6q; arc=none smtp.client-ip=209.85.214.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AmvxIQ6q" Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-2d6e954afbdso20098045ad.2 for ; Wed, 07 Oct 2026 19:29:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791426551; x=1792031351; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=aeu19lsuIXp4350R2VFt5HGY0igWCtsP+eL+xnwXOpg=; b=AmvxIQ6qfylWDb8qih6iXXkyar/QZBrvIE86zyNQrJ0J5ujKXbPuco3+Z/dExaF/RD ZhWLqLoYlHWPnm7mVUO/gHUiHxjcxGRCvRzpdF1A+Y5JROC4jWdfdn2J7o/W84r4xM9n wymXjvbZhfvkE0byisjpzliFzcPJJvlHRjbmEcC0+ieOXMu0ywG2gqFHVdZqFCRPmQgY 4B15dpJVdpC+9R2VD7xhNO67gnC2W8ody1cK62Zy1FJetg1sEKgxM0ZE1ecmqAt376s2 mUchtX2gieRpwqdff/blB/7dH1xXqWibW13MuyHlmZY/B1/tKM/uZpXcqvK0j+s8WOl2 /aMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791426551; x=1792031351; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=aeu19lsuIXp4350R2VFt5HGY0igWCtsP+eL+xnwXOpg=; b=t3kJYVmezDTUqTMD3zWmbaadGQbakw8Bp706aupTdEf649QlS0iH4z++wTOkpqaG1Y 0XWgV7EEv21fz3UkXy1UwFRlA8hz/HG7xMU9qEf7YKUviNOZE3MyqXRuBigM7KRFjHsC YY/wxcjsznq40tmZhbra5T/mhDffLWa3tHNktJo+zowvbgCLLvcDrjp7Fhd6XRze/1mk Qj2D9Ap+LQtyNGn4DbdalFj0FV55nGYwThz9jRm3F4qjIfl+KA3Snts5BREc5S7dtkgz KupkVxBp68wR0I/CEWf9nufmLUmmN8WYlv2W4BEYZuD8N/QL+NBD0kcrEmP88rdt5y5h 8+RQ== X-Gm-Message-State: AFq9FYK8A9a32E4C2wMYAGzAdFsZi9UbFlY9lqVb0/1Yg8ZhTjllSsWQ 3jJKbjTfro3lu98i9GlbwIREqIczpz6PuvXtEaRIsQ1PSRUIsc+PGJAfjpBjIojS X-Gm-Gg: AYBFou2f4xIfUmRb+1Re8Y2K1XwqP878ia8lXxqATovqERUfRvcZzl6/xQ3pXHte2rc dkfkheDmd9OhiMm+miVnMg7VtJhAVfOwcYNtNtR0aaENRbaHnNJUfbZqwMtCdESIGn8CGnPaIl+ t/mPjG0Q2urcwqjq74apV7gpVMxdMXDrfZvkTJasN0Rb6K59fMzXaA5HSKBUm1aw1KOAYQPMtYA f2zGo/UZoYAOuZTCPMWGQGe/jGuUefAElaHcioDfuTx6zDIY+WF74JW9NgfiKM2bnPK1W6+GcVN 7C2o641q+L+tNyQqCEZwuOIOpQQ3K8LXpcKgrelK1lk/djpSOIaRN7q3L4l0mUxcg16ICPkQst4 zMcN7V98phLqDRLL9NeqgLyB3YWdD7Yz5RTV9ei0/C6JQPp6LwDlzfJRQ/FkAgzKvl7NXY+MH/N cUmTCI39s47MFWIG/p4k6Zv+Zy3G8Qhe9oTZELmkF7LXy1lCY65ryO/cotNVWrszcL7BkUHRG8I TWHVaUHTwaz1AirzR7a1D1vYN0= X-Received: by 2002:a17:903:3905:b0:2e5:e542:fe34 with SMTP id d9443c01a7336-2e5ffae5a84mr39318505ad.4.1791426550965; Wed, 07 Oct 2026 19:29:10 -0700 (PDT) Received: from d.home.yangfl.dn42 ([2a09:bac5:661c:1246::1d2:d1]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2e60482cab0sm18045865ad.50.2026.10.07.19.29.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Oct 2026 19:29:10 -0700 (PDT) From: David Yang To: netdev@vger.kernel.org Cc: David Yang , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Chevallier , Stanislav Fomichev , Jacob Keller , linux-kernel@vger.kernel.org Subject: [PATCH net 07/10] net: ethoc: move setting of netops to fix crash Date: Thu, 8 Oct 2026 10:26:49 +0800 Message-ID: <20261008022656.3592191-8-mmyangfl@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261008022656.3592191-1-mmyangfl@gmail.com> References: <20261008022656.3592191-1-mmyangfl@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ethoc_probe() calls ethoc_mdio_probe(), which connects the PHY, before netdev->netdev_ops is assigned. phy_attach_direct() -> phy_link_topo_add_phy() reads dev->netdev_ops through netdev_need_ops_lock() since the commit in question, so probing crashes with a NULL pointer dereference when CONFIG_NET_SHAPER is enabled. Assign netdev_ops before the PHY attach, as was done for emac in commit 7c9f391ec89c ("net: emac: move setting of netops to fix crash"). Fixes: ded86da4bbb7 ("net: ethtool: relax ethnl_req_get_phydev() locking assertion") Signed-off-by: David Yang --- drivers/net/ethernet/ethoc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c index 0c418557264c..e5b7df43e8f6 100644 --- a/drivers/net/ethernet/ethoc.c +++ b/drivers/net/ethernet/ethoc.c @@ -1211,6 +1211,8 @@ static int ethoc_probe(struct platform_device *pdev) goto free3; } + netdev->netdev_ops = ðoc_netdev_ops; + ret = ethoc_mdio_probe(netdev); if (ret) { dev_err(&netdev->dev, "failed to probe MDIO bus\n"); @@ -1218,7 +1220,6 @@ static int ethoc_probe(struct platform_device *pdev) } /* setup the net_device structure */ - netdev->netdev_ops = ðoc_netdev_ops; netdev->watchdog_timeo = ETHOC_TIMEOUT; netdev->features |= 0; netdev->ethtool_ops = ðoc_ethtool_ops; -- 2.53.0