This is a note to let you know that I've just added the patch titled sfc: Fix reading non-legacy supported link modes to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: sfc-fix-reading-non-legacy-supported-link-modes.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 041c61488236a5a84789083e3d9f0a51139b6edf Mon Sep 17 00:00:00 2001 From: Erik Ekman <erik@xxxxxxx> Date: Sun, 17 Oct 2021 19:16:57 +0200 Subject: sfc: Fix reading non-legacy supported link modes From: Erik Ekman <erik@xxxxxxx> commit 041c61488236a5a84789083e3d9f0a51139b6edf upstream. Everything except the first 32 bits was lost when the pause flags were added. This makes the 50000baseCR2 mode flag (bit 34) not appear. I have tested this with a 10G card (SFN5122F-R7) by modifying it to return a non-legacy link mode (10000baseCR). Signed-off-by: Erik Ekman <erik@xxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/ethernet/sfc/ethtool_common.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) --- a/drivers/net/ethernet/sfc/ethtool_common.c +++ b/drivers/net/ethernet/sfc/ethtool_common.c @@ -563,20 +563,14 @@ int efx_ethtool_get_link_ksettings(struc { struct efx_nic *efx = netdev_priv(net_dev); struct efx_link_state *link_state = &efx->link_state; - u32 supported; mutex_lock(&efx->mac_lock); efx_mcdi_phy_get_link_ksettings(efx, cmd); mutex_unlock(&efx->mac_lock); /* Both MACs support pause frames (bidirectional and respond-only) */ - ethtool_convert_link_mode_to_legacy_u32(&supported, - cmd->link_modes.supported); - - supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; - - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, - supported); + ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); + ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); if (LOOPBACK_INTERNAL(efx)) { cmd->base.speed = link_state->speed; Patches currently in stable-queue which might be from erik@xxxxxxx are queue-5.15/sfc-fix-reading-non-legacy-supported-link-modes.patch