From: Maciej Fijalkowski maciej.fijalkowski@intel.com
[ Upstream commit c77e9f09143822623dd71a0fdc84331129e97c3a ]
Return -EAGAIN instead of -ENETDOWN to provide a slightly milder information to user space so that an application will know to retry the syscall when __I40E_CONFIG_BUSY bit is set on pf->state.
Fixes: b3873a5be757 ("net/i40e: Fix concurrency issues between config flow and XSK") Signed-off-by: Maciej Fijalkowski maciej.fijalkowski@intel.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Björn Töpel bjorn.topel@intel.com Link: https://lore.kernel.org/bpf/20200205045834.56795-2-maciej.fijalkowski@intel.... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/intel/i40e/i40e_xsk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c index f73cd917c44f7..3156de786d955 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c @@ -791,7 +791,7 @@ int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags) struct i40e_ring *ring;
if (test_bit(__I40E_CONFIG_BUSY, pf->state)) - return -ENETDOWN; + return -EAGAIN;
if (test_bit(__I40E_VSI_DOWN, vsi->state)) return -ENETDOWN;