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Jesse Brandeburg b811ce9104 ixgbe: fix possible null buffer error 
It seems that at least one PPC machine would occasionally give a (valid) 0 as
the return value from dma_map, this caused the ixgbe code to not work
correctly.  A fix is pending in the PPC tree to not return 0 from dma map, but
we can also fix the driver to make sure we don't mess up in other arches as
well.

This patch is applicable to all current stable kernels.

Ref: https://bugzilla.redhat.com/show_bug.cgi?id=683611

Reported-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: stable@kernel.org
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-21 02:14:13 -04:00
..
appletalk
arcnet
arm NET: am79c961: fix race in link status code 2011-09-05 08:58:29 +01:00
atl1c atl1c: do vlan cleanup 2011-07-21 13:47:54 -07:00
atl1e atl1e: do vlan cleanup 2011-07-21 13:47:54 -07:00
atlx atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
benet be2net: request native mode each time the card is reset 2011-07-21 21:32:54 -07:00
bna bnad: remove duplicated #include 2011-07-23 20:01:15 -07:00
bnx2x bnx2x: Fix ethtool advertisement 2011-09-15 15:53:01 -04:00
bonding bonding:reset backup and inactive flag of slave 2011-08-17 20:12:06 -07:00
caif
can can: ti_hecc: include linux/io.h 2011-09-16 19:21:27 -04:00
chelsio chelsio: do vlan cleanup 2011-07-21 13:47:54 -07:00
cris
cxgb3 atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
cxgb4 atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
cxgb4vf cxgb4vf: do vlan cleanup 2011-07-21 13:47:54 -07:00
e1000 e1000: Fix driver to be used on PA RISC C8000 workstations 2011-08-30 20:58:56 -04:00
e1000e e1000e: workaround invalid Tx/Rx tail descriptor register write 2011-08-13 02:15:38 -07:00
ehea ehea: do vlan cleanup 2011-07-21 13:47:53 -07:00
enic enic: do vlan cleanup 2011-07-21 13:47:55 -07:00
fs_enet Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
hamradio atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
ibm_newemac net: ibm_newemac: convert it to use of_get_phy_mode 2011-07-27 09:31:02 +08:00
igb igb: fix WOL on second port of i350 device 2011-08-04 05:01:59 -07:00
igbvf intel drivers: repair missing flush operations 2011-08-04 04:59:07 -07:00
irda net/irda: sh_sir: tidyup compile warning 2011-08-11 05:52:57 -07:00
ixgb intel drivers: repair missing flush operations 2011-08-04 04:59:07 -07:00
ixgbe ixgbe: fix possible null buffer error 2011-09-21 02:14:13 -04:00
ixgbevf ixgbevf: do vlan cleanup 2011-07-21 13:47:56 -07:00
ixp2000
mlx4 mlx4: decreasing ref count when removing mac 2011-08-05 03:36:07 -07:00
myri10ge
netxen netxen: add fw version compatibility check 2011-07-21 21:32:54 -07:00
octeon
pch_gbe pch_gbe: support ML7831 IOH 2011-09-15 17:31:45 -04:00
pcmcia smc91c92_cs.c: fix bogus compiler warning 2011-07-29 18:27:34 +02:00
phy net/phy: fix DP83865 phy interrupt handler 2011-08-26 12:48:24 -04:00
qlcnic qlcnic: remove usage of vlan_group_get_device 2011-07-21 13:47:57 -07:00
qlge qlge: remove duplicated #include 2011-07-23 20:01:15 -07:00
sfc sfc: Use 64-bit writes for TX push where possible 2011-09-15 17:31:31 -04:00
skfp
stmmac stmmac: unify MAC and PHY configuration parameters (V2) 2011-07-21 15:29:16 -07:00
tile
tokenring
tulip Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-07-21 13:38:42 -07:00
usb ipheth: iPhone 4 Verizon CDMA USB Product ID add 2011-09-15 14:49:44 -04:00
vmxnet3 vmxnet3: Don't enable vlan filters in promiscuous mode. 2011-08-13 18:00:32 -07:00
vxge vxge: do vlan cleanup 2011-07-21 13:47:57 -07:00
wan net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared 2011-07-27 22:39:30 -07:00
wimax atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
wireless Merge branch 'master' of ssh://infradead/~/public_git/wireless into for-davem 2011-09-20 09:19:14 -04:00
xen-netback
3c59x.c
3c501.c
3c501.h
3c503.c
3c503.h
3c505.c
3c505.h
3c507.c
3c509.c
3c515.c
3c523.c
3c523.h
3c527.c
3c527.h
7990.c
7990.h
8139cp.c 8139cp: convert to new VLAN model. 2011-07-15 08:08:26 -07:00
8139too.c
8390.c
8390.h
8390p.c
82596.c
a2065.c
a2065.h
ac3200.c
acenic.c acenic: use netdev_alloc_skb_ip_align 2011-07-25 16:16:00 -07:00
acenic.h acenic: use netdev_alloc_skb_ip_align 2011-07-25 16:16:00 -07:00
amd8111e.c amd8111e: do vlan cleanup 2011-07-21 13:47:54 -07:00
amd8111e.h amd8111e: do vlan cleanup 2011-07-21 13:47:54 -07:00
apne.c
ariadne.c
ariadne.h
at1700.c
atarilance.c
atp.c
atp.h
au1000_eth.c
au1000_eth.h
ax88796.c
b44.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
b44.h
bcm63xx_enet.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
bcm63xx_enet.h
bfin_mac.c
bfin_mac.h
bmac.c
bmac.h
bnx2_fw.h
bnx2.c bnx2: Fix endian swapping on firmware version string 2011-07-21 12:38:32 -07:00
bnx2.h bnx2: Read iSCSI config from shared memory during ->probe() 2011-07-14 08:46:08 -07:00
bsd_comp.c treewide: fix potentially dangerous trailing ';' in #defined values/expressions 2011-07-21 14:10:00 +02:00
cassini.c cassini: init before use in cas_interruptN. 2011-08-26 12:49:03 -04:00
cassini.h
cnic_defs.h
cnic_if.h cnic: Add VLAN ID as a parameter during netevent upcall 2011-07-21 12:38:32 -07:00
cnic.c cnic: Add VLAN ID as a parameter during netevent upcall 2011-07-21 12:38:32 -07:00
cnic.h
cpmac.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
cs89x0.c
cs89x0.h
davinci_cpdma.c
davinci_cpdma.h
davinci_emac.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
davinci_mdio.c
de600.c
de600.h
de620.c
de620.h
declance.c
defxx.c
defxx.h
depca.c
depca.h
dl2k.c
dl2k.h
dm9000.c
dm9000.h
dnet.c
dnet.h
dummy.c
e100.c
e2100.c
eepro.c
eexpress.c
eexpress.h
enc28j60_hw.h
enc28j60.c
epic100.c
eql.c
es3210.c
eth16i.c
ethoc.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
ewrk3.c
ewrk3.h
fealnx.c
fec_mpc52xx_phy.c
fec_mpc52xx.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
fec_mpc52xx.h
fec.c net/fec: add device tree probe support 2011-07-27 09:31:08 +08:00
fec.h
forcedeth.c forcedeth: call vlan_mode only if hw supports vlans 2011-08-17 23:50:37 -07:00
fsl_pq_mdio.c
fsl_pq_mdio.h
ftgmac100.c
ftgmac100.h
ftmac100.c
ftmac100.h
gianfar_ethtool.c gianfar: Fix overflow check and return value for gfar_get_cls_all() 2011-09-20 15:40:12 -04:00
gianfar_ptp.c gianfar: fix fiper alignment after resetting the time 2011-08-07 22:53:22 -07:00
gianfar_sysfs.c
gianfar.c gianfar: prevent buggy hw rx vlan tagging 2011-08-13 18:00:33 -07:00
gianfar.h gianfar: do vlan cleanup 2011-07-21 13:47:55 -07:00
greth.c GRETH: avoid overwrite IP-stack's IP-frags checksum 2011-09-20 15:16:16 -04:00
greth.h GRETH: RX/TX bytes were never increased 2011-09-20 15:16:16 -04:00
hamachi.c
hp100.c
hp100.h
hp-plus.c
hp.c
hplance.c
hplance.h
hydra.c
ibmlana.c
ibmlana.h
ibmveth.c ibmveth: Fix checksum offload failure handling 2011-09-16 15:26:32 -04:00
ibmveth.h
ifb.c net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared 2011-07-27 22:39:30 -07:00
ioc3-eth.c
ipg.c
ipg.h
iseries_veth.c
jazzsonic.c
jme.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-07-21 20:21:27 -07:00
jme.h jme: do vlan cleanup 2011-07-21 13:47:55 -07:00
Kconfig pch_gbe: support ML7831 IOH 2011-09-15 17:31:45 -04:00
korina.c
ks8842.c
ks8851_mll.c
ks8851.c
ks8851.h
ksz884x.c
lance.c
lantiq_etop.c
lasi_82596.c
lib8390.c
lib82596.c
LICENSE.SRC
ll_temac_main.c
ll_temac_mdio.c
ll_temac.h
lne390.c
loopback.c
lp486e.c
mac89x0.c
mac8390.c
macb.c macb: restore wrap bit when performing underrun cleanup 2011-08-04 02:04:32 -07:00
macb.h
mace.c
mace.h
macmace.c
macsonic.c
macvlan.c net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared 2011-07-27 22:39:30 -07:00
macvtap.c
Makefile Fix cdc-phonet build 2011-07-27 22:39:31 -07:00
mdio.c
meth.c
meth.h
mii.c
mipsnet.c
mv643xx_eth.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
mvme147.c
natsemi.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
ne2.c
ne2k-pci.c
ne3210.c
ne-h8300.c
ne.c
netconsole.c netconsole: switch init_netconsole() to late_initcall 2011-09-20 15:45:07 -04:00
netx-eth.c
ni52.c
ni52.h
ni65.c
ni65.h
ni5010.c
ni5010.h
niu.c drivers/net/niu.c: adjust array index 2011-08-01 02:27:21 -07:00
niu.h
ns83820.c ns83820: do vlan cleanup 2011-07-21 13:47:56 -07:00
pasemi_mac_ethtool.c
pasemi_mac.c
pasemi_mac.h
pci-skeleton.c
pcnet32.c PCnet: Fix section mismatch 2011-08-11 07:42:45 -07:00
plip.c net: Push protocol type directly down to header_ops->cache() 2011-07-13 02:29:59 -07:00
ppp_async.c
ppp_deflate.c
ppp_generic.c ppp_generic: fix multilink fragment MTU calculation (again) 2011-09-20 15:20:58 -04:00
ppp_mppe.c
ppp_mppe.h
ppp_synctty.c
pppoe.c pppoe: Must flush connections when MAC address changes too. 2011-07-18 11:48:28 -07:00
pppox.c
pptp.c
ps3_gelic_net.c net/ps3: Fix gelic RX DMA restart 2011-07-14 16:03:29 -07:00
ps3_gelic_net.h net/ps3: Fix gelic RX DMA restart 2011-07-14 16:03:29 -07:00
ps3_gelic_wireless.c
ps3_gelic_wireless.h
pxa168_eth.c net: pxa168: Fix build errors by including interrupt.h 2011-09-20 15:47:27 -04:00
qla3xxx.c
qla3xxx.h
r6040.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-07-21 13:38:42 -07:00
r8169.c r8169: do not enable the TBI for anything but the original 8169. 2011-09-17 11:42:21 +02:00
rionet.c rapidio: fix use of non-compatible registers 2011-08-25 16:25:34 -07:00
rrunner.c
rrunner.h
s2io-regs.h
s2io.c s2io: do vlan cleanup 2011-07-21 13:47:55 -07:00
s2io.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
s6gmac.c
sb1000.c
sb1250-mac.c
sc92031.c
seeq8005.c
seeq8005.h
sgiseeq.c
sgiseeq.h
sh_eth.c net: sh_eth: fix the compile error 2011-08-26 12:48:24 -04:00
sh_eth.h
sis190.c sis190: Rx filter init is needed for MAC address change. 2011-07-28 18:11:51 -07:00
sis900.c
sis900.h
skge.c
skge.h
sky2.c
sky2.h
slhc.c
slip.c slip: fix NOHZ local_softirq_pending 08 warning 2011-08-07 22:14:45 -07:00
slip.h slip: remove unused 'line' field from the 'slip' structure 2011-07-19 16:55:42 -07:00
smc91x.c
smc91x.h
smc911x.c
smc911x.h
smc9194.c
smc9194.h
smc-mca.c
smc-ultra32.c
smc-ultra.c
smsc911x.c
smsc911x.h
smsc9420.c
smsc9420.h
sni_82596.c
sonic.c
sonic.h
Space.c
spider_net_ethtool.c
spider_net.c spider_net: do not mention dying vlan_hwaccel_receive_skb 2011-07-21 13:47:55 -07:00
spider_net.h
starfire.c starfire: do vlan cleanup 2011-07-21 13:47:56 -07:00
stnic.c
sun3_82586.c
sun3_82586.h
sun3lance.c
sunbmac.c
sunbmac.h
sundance.c
sungem_phy.c
sungem_phy.h
sungem.c sungem: fix compile failure caused by trivial #include consolidation 2011-07-29 17:31:16 +02:00
sungem.h
sunhme.c
sunhme.h
sunlance.c
sunqe.c
sunqe.h
sunvnet.c
sunvnet.h
tc35815.c
tehuti.c tehuti: do vlan cleanup 2011-07-21 13:47:55 -07:00
tehuti.h tehuti: do vlan cleanup 2011-07-21 13:47:55 -07:00
tg3.c tg3: fix VLAN tagging regression 2011-09-21 02:14:12 -04:00
tg3.h tg3: Break larger frags into 4k chunks for 5719 2011-07-27 22:39:32 -07:00
tlan.c
tlan.h
tsi108_eth.c
tsi108_eth.h
tun.c net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared 2011-07-27 22:39:30 -07:00
typhoon.c
typhoon.h
ucc_geth_ethtool.c
ucc_geth.c
ucc_geth.h
veth.c net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared 2011-07-27 22:39:30 -07:00
via-rhine.c
via-velocity.c via-velocity: remove non-tagged packet filtering 2011-08-17 20:13:39 -07:00
via-velocity.h via-velocity: do vlan cleanup 2011-07-21 13:47:56 -07:00
virtio_net.c virtio_net: Fix panic in virtnet_remove 2011-07-21 21:29:34 -07:00
wd.c
xen-netfront.c
xilinx_emaclite.c
xtsonic.c
yellowfin.c
znet.c
zorro8390.c