From: Intel <intel.com>
Date: Wed, 18 Sep 2013 10:00:00 +0000 (+0200)
Subject: e1000: fix descriptor overflow
X-Git-Tag: spdx-start~11146
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a84f185a8a8d05ee7f868ac931cdef52bc860cc6;p=dpdk.git

e1000: fix descriptor overflow

Allow rxq->rx_tail + offset > 65535
in eth_em_rx_descriptor_done().

Signed-off-by: Intel
---

diff --git a/lib/librte_pmd_e1000/em_rxtx.c b/lib/librte_pmd_e1000/em_rxtx.c
index 0bebfe27e6..c049542398 100644
--- a/lib/librte_pmd_e1000/em_rxtx.c
+++ b/lib/librte_pmd_e1000/em_rxtx.c
@@ -1449,7 +1449,7 @@ eth_em_rx_descriptor_done(void *rx_queue, uint16_t offset)
 {
 	volatile struct e1000_rx_desc *rxdp;
 	struct em_rx_queue *rxq = rx_queue;
-	uint16_t desc;
+	uint32_t desc;
 
 	if (unlikely(offset >= rxq->nb_rx_desc))
 		return 0;