| commit | fdb37a7f84a58ccad24abffd54ad46d23b763e13 | |
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | |
| Mon, 6 Feb 2012 23:55:15 +0000 (6 23:55 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Tue, 7 Feb 2012 18:37:30 +0000 (7 13:37 -0500) | ||
| tree | 0e9dc5efda48b1eb2430ef9d27e884c5be5305f6 | treesnapshot (tar.gz zip) |
| parent | 6d25886ee2fbc05a7bf4dae5f5ae345cb73df2fd | commitdiff |
net: sh_eth: fix skb_over_panic happen
When this GETHER controller received a large frame (about 1800 bytes
or more), skb_over_panic() happened. This is because the previous
driver set the RFLR to 0x1000 (4096 bytes) and the skb allocate size
is smaller than 4096 bytes. So, the controller accepted such a frame.
The controller can discard a large frame by the RFLR setting.
So, the patch modifies the value of RFLR to mtu + ETH_HLEN +
VLAN_HLEN + ETH_FCS_LEN.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When this GETHER controller received a large frame (about 1800 bytes
or more), skb_over_panic() happened. This is because the previous
driver set the RFLR to 0x1000 (4096 bytes) and the skb allocate size
is smaller than 4096 bytes. So, the controller accepted such a frame.
The controller can discard a large frame by the RFLR setting.
So, the patch modifies the value of RFLR to mtu + ETH_HLEN +
VLAN_HLEN + ETH_FCS_LEN.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| drivers/net/ethernet/renesas/sh_eth.c | diffblobblamehistory | |
| drivers/net/ethernet/renesas/sh_eth.h | diffblobblamehistory |