linux-kernel - [PATCH 5.4 039/110] net: socionext: fix xdp_result initialization in netsec_process

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Date:   Thu, 30 Jan 2020 19:38:15 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Lorenzo Bianconi <lorenzo@...nel.org>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 5.4 039/110] net: socionext: fix xdp_result initialization in netsec_process_rx

From: Lorenzo Bianconi <lorenzo@...nel.org>

[ Upstream commit 02758cb6dac31a2b4bd9e535cffbe718acd46404 ]

Fix xdp_result initialization in netsec_process_rx in order to not
increase rx counters if there is no bpf program attached to the xdp hook
and napi_gro_receive returns GRO_DROP

Fixes: ba2b232108d3c ("net: netsec: add XDP support")
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
Acked-by: Jesper Dangaard Brouer <brouer@...hat.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/socionext/netsec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/socionext/netsec.c
+++ b/drivers/net/ethernet/socionext/netsec.c
@@ -941,8 +941,8 @@ static int netsec_process_rx(struct nets
 		struct netsec_de *de = dring->vaddr + (DESC_SZ * idx);
 		struct netsec_desc *desc = &dring->desc[idx];
 		struct page *page = virt_to_page(desc->addr);
+		u32 xdp_result = NETSEC_XDP_PASS;
 		struct sk_buff *skb = NULL;
-		u32 xdp_result = XDP_PASS;
 		u16 pkt_len, desc_len;
 		dma_addr_t dma_handle;
 		struct xdp_buff xdp;