[Intel-wired-lan] [PATCH net] ixgbe, xsk: clean up the resources in ixgbe_xsk_pool_enable error path

Penigalapati, Sandeep sandeep.penigalapati at intel.com
Tue Aug 17 10:39:26 UTC 2021

>-----Original Message-----
>From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of
>Wang Hai
>Sent: Monday, June 7, 2021 5:57 PM
>To: Brandeburg, Jesse <jesse.brandeburg at intel.com>; Nguyen, Anthony L
><anthony.l.nguyen at intel.com>; davem at davemloft.net; ast at kernel.org;
>kuba at kernel.org; daniel at iogearbox.net; hawk at kernel.org;
>john.fastabend at gmail.com; jeffrey.t.kirsher at intel.com; Sokolowski, Jan
><jan.sokolowski at intel.com>; Karlsson, Magnus
><magnus.karlsson at intel.com>
>Cc: netdev at vger.kernel.org; bpf at vger.kernel.org; intel-wired-
>lan at lists.osuosl.org; linux-kernel at vger.kernel.org
>Subject: [Intel-wired-lan] [PATCH net] ixgbe, xsk: clean up the resources in
>ixgbe_xsk_pool_enable error path
>In ixgbe_xsk_pool_enable(), if ixgbe_xsk_wakeup() fails, We should restore
>the previous state and clean up the resources. Add the missing clear
>af_xdp_zc_qps and unmap dma to fix this bug.
>Fixes: d49e286d354e ("ixgbe: add tracking of AF_XDP zero-copy state for each
>queue pair")
>Fixes: 4a9b32f30f80 ("ixgbe: fix potential RX buffer starvation for AF_XDP")
>Signed-off-by: Wang Hai <wanghai38 at huawei.com>
> drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
Tested-by: Sandeep Penigalapati <sandeep.penigalapati at intel.com>

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