Fix the suspend path by ensuring the rtnl lock is held where required. Calls to open, close and WOL operations must be performed under the rtnl lock to prevent conflicts with ongoing ndo operations. Discussion about this issue can be found here: https://lore.kernel.org/netdev/20250120141926.1290763-1-kory.maincent@xxxxxxxxxxx/ While working on the ravb fix, it was discovered that the sh_eth driver has the same issue. This patch series addresses both drivers. I do not have access to hardware for either of these MACs, so it would be great if maintainers or others with the relevant boards could test these fixes. Signed-off-by: Kory Maincent <kory.maincent@xxxxxxxxxxx> --- Changes in v2: - Move the rtnl_lock before ravb_wol_setup() and ravb_wol_restore() instead of before the if condition. - Link to v1: https://lore.kernel.org/r/20250122-fix_missing_rtnl_lock_phy_disconnect-v1-0-8cb9f6f88fd1@xxxxxxxxxxx --- Kory Maincent (2): net: ravb: Fix missing rtnl lock in suspend path net: sh_eth: Fix missing rtnl lock in suspend path drivers/net/ethernet/renesas/ravb_main.c | 14 ++++++++++++-- drivers/net/ethernet/renesas/sh_eth.c | 4 ++++ 2 files changed, 16 insertions(+), 2 deletions(-) --- base-commit: b1754a69e7be48a64b3cdb0df60a96d97959da73 change-id: 20250122-fix_missing_rtnl_lock_phy_disconnect-fc1d6f5db705 Best regards, -- Köry Maincent, Bootlin Embedded Linux and kernel engineering https://bootlin.com
