netdev - [PATCH] cdc-phonet: fix skb truesize underestimation

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Date:	Tue, 27 Mar 2012 06:17:26 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, netdev <netdev@...r.kernel.org>,
	Felipe Balbi <balbi@...com>,
	Rémi Denis-Courmont 
	<remi.denis-courmont@...ia.com>
Subject: [PATCH] cdc-phonet: fix skb truesize underestimation

Now skb_add_rx_frag() has a truesize parameter, we can fix cdc-phonet to
properly account truesize of each fragment : a full page.

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
Cc: Felipe Balbi <balbi@...com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Rémi Denis-Courmont <remi.denis-courmont@...ia.com>
---
 drivers/net/usb/cdc-phonet.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index 3886b30..3e41b00 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -165,13 +165,13 @@ static void rx_complete(struct urb *req)
 				memcpy(skb_put(skb, 1), page_address(page), 1);
 				skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 						page, 1, req->actual_length,
-						req->actual_length);
+						PAGE_SIZE);
 				page = NULL;
 			}
 		} else {
 			skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 					page, 0, req->actual_length,
-					req->actual_length);
+					PAGE_SIZE);
 			page = NULL;
 		}
 		if (req->actual_length < PAGE_SIZE)


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