Re: [PATCH net v3 2/2] net: sparx5: fix sleep in atomic context in MAC table access

[Jakub Kicinski]

On Thu, 20 Aug 2026 16:34:43 +0200 Sebastian Andrzej Siewior wrote:
> On 2026-08-17 17:41:59 [+0200], Daniel Machon wrote:
> …
> > Fixes: d6fce5141929 ("net: sparx5: add switching support")
> > Signed-off-by: Daniel Machon <daniel.machon@xxxxxxxxxxxxx>  
> …
> > diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
> > index 1d34af78166a..4dedf5d92641 100644
> > --- a/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
> > +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
> > @@ -249,7 +254,7 @@ static const struct net_device_ops sparx5_port_netdev_ops = {
> >  	.ndo_open               = sparx5_port_open,
> >  	.ndo_stop               = sparx5_port_stop,
> >  	.ndo_start_xmit         = sparx5_port_xmit_impl,
> > -	.ndo_set_rx_mode        = sparx5_set_rx_mode,
> > +	.ndo_set_rx_mode_async  = sparx5_set_rx_mode,
> >  	.ndo_get_phys_port_name = sparx5_port_get_phys_port_name,
> >  	.ndo_set_mac_address    = sparx5_set_mac_address,
> >  	.ndo_validate_addr      = eth_validate_addr,  
> 
> d6fce5141929 is v5.14-rc1
> ndo_set_rx_mode_async has been introduced in v7.1-rc1.
> Youngest LTS kernel is v6.18.
> 
> What would be the "fix" for the kernels v5.15 … v6.18?

stable should backport .ndo_set_rx_mode_async
there's been a number of similar fixes, and the whole point of 
the new ndo was to help drivers avoid the sleeping in atomic bugs