diff options
| author |   Ciara Loftus <ciara.loftus@intel.com> | 2020-06-09 13:19:45 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-06-18 22:35:34 -0700 |
| commit | b1d95cc2391ffac0c5b27256a4fb0d2cfb021a29 (patch) | |
| tree | daba3edf8a8be9f2f85ae07209ecb033e8295882 /drivers/net/ethernet/intel/ice/ice_main.c | |
| parent | i40e: protect ring accesses with READ- and WRITE_ONCE (diff) | |
| download | wireguard-linux-b1d95cc2391ffac0c5b27256a4fb0d2cfb021a29.tar.xz wireguard-linux-b1d95cc2391ffac0c5b27256a4fb0d2cfb021a29.zip | |
ice: protect ring accesses with WRITE_ONCE
The READ_ONCE macro is used when reading rings prior to accessing the
statistics pointer. The corresponding WRITE_ONCE usage when allocating and
freeing the rings to ensure protected access was not in place. Introduce
this.
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 082825e3cb39..4cbd49c87568 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1702,7 +1702,7 @@ static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi) xdp_ring->netdev = NULL; xdp_ring->dev = dev; xdp_ring->count = vsi->num_tx_desc; - vsi->xdp_rings[i] = xdp_ring; + WRITE_ONCE(vsi->xdp_rings[i], xdp_ring); if (ice_setup_tx_ring(xdp_ring)) goto free_xdp_rings; ice_set_ring_xdp(xdp_ring); |