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Date: Mon, 25 Oct 2021 21:13:31 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>, Gurucharan G <gurucharanx.g@...el.com>, Tony Nguyen <anthony.l.nguyen@...el.com>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.14 030/169] ice: fix getting UDP tunnel entry From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com> [ Upstream commit e4c2efa1393c6f1fbfabf91d1d83fcb4ae691ccb ] Correct parameters order in call to ice_tunnel_idx_to_entry function. Entry in sparse port table is correct when the idx is 0. For idx 1 one correct entry should be skipped, for idx 2 two of them should be skipped etc. Change if condition to be true when idx is 0, which means that previous valid entry of this tunnel type were skipped. Fixes: b20e6c17c468 ("ice: convert to new udp_tunnel infrastructure") Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com> Tested-by: Gurucharan G <gurucharanx.g@...el.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/ethernet/intel/ice/ice_flex_pipe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c index 06ac9badee77..1ac96dc66d0d 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c @@ -1668,7 +1668,7 @@ static u16 ice_tunnel_idx_to_entry(struct ice_hw *hw, enum ice_tunnel_type type, for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].type == type && - idx--) + idx-- == 0) return i; WARN_ON_ONCE(1); @@ -1828,7 +1828,7 @@ int ice_udp_tunnel_set_port(struct net_device *netdev, unsigned int table, u16 index; tnl_type = ti->type == UDP_TUNNEL_TYPE_VXLAN ? TNL_VXLAN : TNL_GENEVE; - index = ice_tunnel_idx_to_entry(&pf->hw, idx, tnl_type); + index = ice_tunnel_idx_to_entry(&pf->hw, tnl_type, idx); status = ice_create_tunnel(&pf->hw, index, tnl_type, ntohs(ti->port)); if (status) { -- 2.33.0
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