Commit 2c19e395 authored Oct 07, 2019 by Jeff Kirsher

i40e: Fix receive buffer starvation for AF_XDP



Magnus's fix to resolve a potential receive buffer starvation for AF_XDP
got applied to both the i40e_xsk_umem_enable/disable() functions, when it
should have only been applied to the "enable".  So clean up the undesired
code in the disable function.

CC: Magnus Karlsson <magnus.karlsson@intel.com>
Fixes: 1f459bdc ("i40e: fix potential RX buffer starvation for AF_XDP")
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>

parent 8d5cfd7f

drivers/net/ethernet/intel/i40e/i40e_xsk.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -157,11 +157,6 @@ static int i40e_xsk_umem_disable(struct i40e_vsi *vsi, u16 qid)
		err = i40e_queue_pair_enable(vsi, qid);
		if (err)
		return err;

		/* Kick start the NAPI context so that receiving will start */
		err = i40e_xsk_wakeup(vsi->netdev, qid, XDP_WAKEUP_RX);
		if (err)
		return err;
		}

		return 0;