netdev - [PATCH net-next 4/8] ice: simplify ice_run

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Message-Id: <20201211164956.59628-5-maciej.fijalkowski@intel.com>
Date:   Fri, 11 Dec 2020 17:49:52 +0100
From:   Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To:     intel-wired-lan@...ts.osuosl.org
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        anthony.l.nguyen@...el.com, kuba@...nel.org, bjorn.topel@...el.com,
        magnus.karlsson@...el.com,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH net-next 4/8] ice: simplify ice_run_xdp

There's no need for 'result' variable, we can directly return the
internal status based on action returned by xdp prog.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_txrx.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 77d5eae6b4c2..8b5d23436904 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -537,22 +537,20 @@ static int
 ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp,
 	    struct bpf_prog *xdp_prog)
 {
-	int err, result = ICE_XDP_PASS;
 	struct ice_ring *xdp_ring;
+	int err;
 	u32 act;
 
 	act = bpf_prog_run_xdp(xdp_prog, xdp);
 	switch (act) {
 	case XDP_PASS:
-		break;
+		return ICE_XDP_PASS;
 	case XDP_TX:
 		xdp_ring = rx_ring->vsi->xdp_rings[smp_processor_id()];
-		result = ice_xmit_xdp_buff(xdp, xdp_ring);
-		break;
+		return ice_xmit_xdp_buff(xdp, xdp_ring);
 	case XDP_REDIRECT:
 		err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog);
-		result = !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED;
-		break;
+		return !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED;
 	default:
 		bpf_warn_invalid_xdp_action(act);
 		fallthrough;
@@ -560,11 +558,8 @@ ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp,
 		trace_xdp_exception(rx_ring->netdev, xdp_prog, act);
 		fallthrough;
 	case XDP_DROP:
-		result = ICE_XDP_CONSUMED;
-		break;
+		return ICE_XDP_CONSUMED;
 	}
-
-	return result;
 }
 
 /**
-- 
2.20.1