linux-kernel - [PATCH net 1/3] Drivers: net: hyperv: Allocate memory for all possible per-pecket information

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Message-Id: <1396986371-12137-2-git-send-email-kys@microsoft.com>
Date:	Tue,  8 Apr 2014 12:46:09 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	olaf@...fle.de, apw@...onical.com, jasowang@...hat.com
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH net 1/3] Drivers: net: hyperv: Allocate memory for all possible per-pecket information

An outgoing packet can potentially need per-packet information for
all the offloads and VLAN tagging. Fix this issue.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>
---
 drivers/net/hyperv/netvsc_drv.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 4e4cf9e..6f39baa 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -319,7 +319,9 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 	packet = kzalloc(sizeof(struct hv_netvsc_packet) +
 			 (num_data_pgs * sizeof(struct hv_page_buffer)) +
 			 sizeof(struct rndis_message) +
-			 NDIS_VLAN_PPI_SIZE, GFP_ATOMIC);
+			 NDIS_VLAN_PPI_SIZE +
+			 NDIS_CSUM_PPI_SIZE +
+			 NDIS_LSO_PPI_SIZE, GFP_ATOMIC);
 	if (!packet) {
 		/* out of memory, drop packet */
 		netdev_err(net, "unable to allocate hv_netvsc_packet\n");
-- 
1.7.4.1

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