All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Yang <mmyangfl@gmail.com>
To: netdev@vger.kernel.org
Cc: David Yang <mmyangfl@gmail.com>,
	MD Danish Anwar <danishanwar@ti.com>,
	Parvathi Pudi <parvathi@couthit.com>,
	Roger Quadros <rogerq@kernel.org>,
	Mohan Reddy Putluru <pmohan@couthit.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Jacob Keller <jacob.e.keller@intel.com>,
	Stanislav Fomichev <sdf@fomichev.me>,
	Nicolai Buchwitz <nb@tipi-net.de>,
	Maxime Chevallier <maxime.chevallier@bootlin.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH net 09/10] net: ti: icssm-prueth: Move setting of netops to fix crash
Date: Thu,  8 Oct 2026 10:26:51 +0800	[thread overview]
Message-ID: <20261008022656.3592191-10-mmyangfl@gmail.com> (raw)
In-Reply-To: <20261008022656.3592191-1-mmyangfl@gmail.com>

icssm_prueth_netdev_init() calls of_phy_get_and_connect() before
ndev->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 <mmyangfl@gmail.com>
---
 drivers/net/ethernet/ti/icssm/icssm_prueth.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/icssm/icssm_prueth.c b/drivers/net/ethernet/ti/icssm/icssm_prueth.c
index b7e94244355a..b42c98e861e0 100644
--- a/drivers/net/ethernet/ti/icssm/icssm_prueth.c
+++ b/drivers/net/ethernet/ti/icssm/icssm_prueth.c
@@ -1563,6 +1563,8 @@ static int icssm_prueth_netdev_init(struct prueth *prueth,
 	}
 	ether_addr_copy(emac->mac_addr, ndev->dev_addr);
 
+	ndev->netdev_ops = &emac_netdev_ops;
+
 	/* connect PHY */
 	emac->phydev = of_phy_get_and_connect(ndev, eth_node,
 					      icssm_emac_adjust_link);
@@ -1590,7 +1592,6 @@ static int icssm_prueth_netdev_init(struct prueth *prueth,
 	}
 
 	ndev->dev.of_node = eth_node;
-	ndev->netdev_ops = &emac_netdev_ops;
 
 	netif_napi_add(ndev, &emac->napi, icssm_emac_napi_poll);
 
-- 
2.53.0


  parent reply	other threads:[~2026-10-08  2:29 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-08  2:26 [PATCH net 00/10] net: Move setting of netops to fix crash David Yang
2026-10-08  2:26 ` [PATCH net 01/10] net: hisilicon: hisi_femac: " David Yang
2026-10-08  8:29   ` Maxime Chevallier
2026-10-08 11:51   ` Jijie Shao
2026-10-08  2:26 ` [PATCH net 02/10] net: hisilicon: hip04_eth: " David Yang
2026-10-08  8:30   ` Maxime Chevallier
2026-10-08  2:26 ` [PATCH net 03/10] net: ethernet: actions: " David Yang
2026-10-08  8:30   ` Maxime Chevallier
2026-10-08  2:26 ` [PATCH net 04/10] net: ethernet: adi: " David Yang
2026-10-08  8:30   ` Maxime Chevallier
2026-10-09 13:03   ` Regus, Ciprian
2026-10-08  2:26 ` [PATCH net 05/10] net: mv643xx: move " David Yang
2026-10-13 10:00   ` Daniel Machon
2026-10-08  2:26 ` [PATCH net 06/10] net: au1000: " David Yang
2026-10-08  8:31   ` Maxime Chevallier
2026-10-08  2:26 ` [PATCH net 07/10] net: ethoc: " David Yang
2026-10-08  8:31   ` Maxime Chevallier
2026-10-13 10:00   ` Daniel Machon
2026-10-08  2:26 ` [PATCH net 08/10] net: ethernet: aeroflex: " David Yang
2026-10-08  8:31   ` Maxime Chevallier
2026-10-09 14:34   ` Andreas Larsson
2026-10-08  2:26 ` David Yang [this message]
2026-10-08  8:32   ` [PATCH net 09/10] net: ti: icssm-prueth: Move " Maxime Chevallier
2026-10-08  2:26 ` [PATCH net 10/10] microchip: lan865x: move " David Yang
2026-10-08  8:32   ` Maxime Chevallier
2026-10-08 12:10 ` [PATCH net 00/10] net: Move " Jijie Shao

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20261008022656.3592191-10-mmyangfl@gmail.com \
    --to=mmyangfl@gmail.com \
    --cc=andrew+netdev@lunn.ch \
    --cc=danishanwar@ti.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@kernel.org \
    --cc=jacob.e.keller@intel.com \
    --cc=kuba@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=maxime.chevallier@bootlin.com \
    --cc=nb@tipi-net.de \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=parvathi@couthit.com \
    --cc=pmohan@couthit.com \
    --cc=rogerq@kernel.org \
    --cc=sdf@fomichev.me \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.