diff options
| author | Neil Horman <nhorman@tuxdriver.com> | 2011-07-26 06:05:38 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-27 22:39:30 -0700 |
| commit | 550fd08c2cebad61c548def135f67aba284c6162 (patch) | |
| tree | 8aa7c4d20a9faeb42261b75cfa38d8fd27b574ff /drivers/net/wan | |
| parent | d8873315065f1f527c7c380402cf59b1e1d0ae36 (diff) | |
| download | linux-550fd08c2cebad61c548def135f67aba284c6162.tar.gz linux-550fd08c2cebad61c548def135f67aba284c6162.tar.bz2 linux-550fd08c2cebad61c548def135f67aba284c6162.zip | |
net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared
After the last patch, We are left in a state in which only drivers calling
ether_setup have IFF_TX_SKB_SHARING set (we assume that drivers touching real
hardware call ether_setup for their net_devices and don't hold any state in
their skbs. There are a handful of drivers that violate this assumption of
course, and need to be fixed up. This patch identifies those drivers, and marks
them as not being able to support the safe transmission of skbs by clearning the
IFF_TX_SKB_SHARING flag in priv_flags
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Karsten Keil <isdn@linux-pingi.de>
CC: "David S. Miller" <davem@davemloft.net>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Patrick McHardy <kaber@trash.net>
CC: Krzysztof Halasa <khc@pm.waw.pl>
CC: "John W. Linville" <linville@tuxdriver.com>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Marcel Holtmann <marcel@holtmann.org>
CC: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wan')
| -rw-r--r-- | drivers/net/wan/hdlc_fr.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c index b25c9229a6a9..eb2028187fbe 100644 --- a/drivers/net/wan/hdlc_fr.c +++ b/drivers/net/wan/hdlc_fr.c @@ -1074,9 +1074,10 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type) used = pvc_is_used(pvc); - if (type == ARPHRD_ETHER) + if (type == ARPHRD_ETHER) { dev = alloc_netdev(0, "pvceth%d", ether_setup); - else + dev->priv_flags &= ~IFF_TX_SKB_SHARING; + } else dev = alloc_netdev(0, "pvc%d", pvc_setup); if (!dev) { |