> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of
> Maciej Fijalkowski
> Sent: Friday, March 18, 2022 12:06 AM
> To: intel-wired-lan@xxxxxxxxxxxxxxxx
> Cc: netdev@xxxxxxxxxxxxxxx; kuba@xxxxxxxxxx; bpf@xxxxxxxxxxxxxxx;
> davem@xxxxxxxxxxxxx; Karlsson, Magnus <magnus.karlsson@xxxxxxxxx>
> Subject: [Intel-wired-lan] [PATCH intel-net 1/3] ice: synchronize_rcu() when
> terminating rings
>
> Unfortunately, the ice driver doesn't respect the RCU critical section that XSK
> wakeup is surrounded with. To fix this, add synchronize_rcu() calls to paths
> that destroy resources that might be in use.
>
> This was addressed in other AF_XDP ZC enabled drivers, for reference see
> for example commit b3873a5be757 ("net/i40e: Fix concurrency issues
> between config flow and XSK")
>
> Fixes: efc2214b6047 ("ice: Add support for XDP")
> Fixes: 2d4238f55697 ("ice: Add support for AF_XDP")
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
> ---
> drivers/net/ethernet/intel/ice/ice.h | 2 +-
> drivers/net/ethernet/intel/ice/ice_main.c | 4 +++-
> drivers/net/ethernet/intel/ice/ice_xsk.c | 4 +++-
> 3 files changed, 7 insertions(+), 3 deletions(-)
>
Tested-by: Shwetha Nagaraju <Shwetha.nagaraju@xxxxxxxxx>
