diff options
| author | Maciej Fijalkowski <maciej.fijalkowski@intel.com> | 2024-07-26 21:17:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-11 13:35:57 +0300 |
| commit | 5a80b682e3e161784edf1550de9b8602a5013140 (patch) | |
| tree | 42be00bdb746b781df446871cd5ee115f113ce03 | |
| parent | 8782f0fcb19dc59804d1bfea5a39343410328d20 (diff) | |
| download | linux-5a80b682e3e161784edf1550de9b8602a5013140.tar.xz | |
ice: add missing WRITE_ONCE when clearing ice_rx_ring::xdp_prog
[ Upstream commit 6044ca26210ba72b3dcc649fae1cbedd9e6ab018 ]
It is read by data path and modified from process context on remote cpu
so it is needed to use WRITE_ONCE to clear the pointer.
Fixes: efc2214b6047 ("ice: Add support for XDP")
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_txrx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index dbe80e5053a8..bd62781191b3 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -454,7 +454,7 @@ void ice_free_rx_ring(struct ice_rx_ring *rx_ring) if (rx_ring->vsi->type == ICE_VSI_PF) if (xdp_rxq_info_is_reg(&rx_ring->xdp_rxq)) xdp_rxq_info_unreg(&rx_ring->xdp_rxq); - rx_ring->xdp_prog = NULL; + WRITE_ONCE(rx_ring->xdp_prog, NULL); if (rx_ring->xsk_pool) { kfree(rx_ring->xdp_buf); rx_ring->xdp_buf = NULL; |