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dc9ef1bf45
qemu/hw/net
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Akihiko Odaki dc9ef1bf45 igb: Always copy ethernet header 
igb_receive_internal() used to check the iov length to determine
copy the iovs to a contiguous buffer, but the check is flawed in two
ways:
- It does not ensure that iovcnt > 0.
- It does not take virtio-net header into consideration.

The size of this copy is just 22 octets, which can be even less than
the code size required for checks. This (wrong) optimization is probably
not worth so just remove it. Removing this also allows igb to assume
aligned accesses for the ethernet header.

Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23 15:20:15 +08:00
..
can include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
fsl_etsec fsl_etsec: Use hw/net/mii.h 2023-03-10 15:35:38 +08:00
rocker rocker: Tweak stubbed out monitor commands' error messages 2023-02-23 14:10:17 +01:00
allwinner_emac.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
allwinner-sun8i-emac.c hw/net/allwinner-sun8i-emac: Correctly byteswap descriptor fields 2023-05-02 15:47:41 +01:00
cadence_gem.c Drop more useless casts from void * to pointer 2022-12-14 16:19:35 +01:00
dp8393x.c dp8393x: don't force 32-bit register access 2021-07-11 22:29:54 +02:00
e1000_common.h e1000: Split header files 2023-03-10 15:35:38 +08:00
e1000_regs.h e1000: Split header files 2023-03-10 15:35:38 +08:00
e1000.c e1000x: Fix BPRC and MPRC 2023-05-23 15:20:15 +08:00
e1000e_core.c e1000e: Always copy ethernet header 2023-05-23 15:20:15 +08:00
e1000e_core.h e1000e: Implement system clock 2023-03-10 15:35:38 +08:00
e1000e.c e1000: Split header files 2023-03-10 15:35:38 +08:00
e1000x_common.c e1000x: Fix BPRC and MPRC 2023-05-23 15:20:15 +08:00
e1000x_common.h e1000x: Fix BPRC and MPRC 2023-05-23 15:20:15 +08:00
e1000x_regs.h igb: add ICR_RXDW 2023-03-28 13:10:55 +08:00
eepro100.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
etraxfs_eth.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ftgmac100.c hw/net: Fix read of uninitialized memory in ftgmac100 2023-02-07 09:02:04 +01:00
i82596.c Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
i82596.h hw/net: Make NetCanReceive() return a boolean 2020-03-31 21:14:35 +08:00
igb_common.h Intrdocue igb device emulation 2023-03-10 15:35:38 +08:00
igb_core.c igb: Always copy ethernet header 2023-05-23 15:20:15 +08:00
igb_core.h igb: implement VFRE and VFTE registers 2023-03-28 13:10:55 +08:00
igb_regs.h igb: Fix Rx packet type encoding 2023-05-23 15:20:15 +08:00
igb.c igb: Save more Tx states 2023-03-28 13:10:55 +08:00
igbvf.c Intrdocue igb device emulation 2023-03-10 15:35:38 +08:00
imx_fec.c hw/net/imx_fec: Support two Ethernet interfaces connected to single MDIO bus 2023-04-20 10:25:43 +01:00
Kconfig Intrdocue igb device emulation 2023-03-10 15:35:38 +08:00
lan9118.c hw/net/lan9118: log [read|write]b when mode_16bit is enabled rather than abort 2023-02-17 13:31:33 +08:00
lance.c Drop more @errp parameters after previous commit 2020-05-15 07:08:14 +02:00
lasi_i82596.c Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
mcf_fec.c net: Replace TAB indentations with spaces 2022-11-11 09:39:03 +01:00
meson.build hw/net: Move xilinx_ethlite.c to the target-independent source set 2023-05-16 09:14:18 +02:00
mipsnet.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
msf2-emac.c hw/net/msf2-emac: Don't modify descriptor in-place in emac_store_desc() 2023-05-02 15:47:40 +01:00
mv88w8618_eth.c hw/net: Move MV88W8618 network device out of hw/arm/ directory 2022-01-20 11:47:52 +00:00
ne2000-isa.c hw/isa: Inline and remove one-line isa_init_irq() 2022-03-08 19:38:17 +01:00
ne2000-pci.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
ne2000.c net: Replace TAB indentations with spaces 2022-11-11 09:39:03 +01:00
ne2000.h Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
net_rx_pkt.c net/net_rx_pkt: Use iovec for net_rx_pkt_set_protocols() 2023-05-23 15:20:15 +08:00
net_rx_pkt.h net/net_rx_pkt: Use iovec for net_rx_pkt_set_protocols() 2023-05-23 15:20:15 +08:00
net_tx_pkt.c hw/net/net_tx_pkt: Decouple interface from PCI 2023-05-23 15:20:15 +08:00
net_tx_pkt.h hw/net/net_tx_pkt: Decouple interface from PCI 2023-05-23 15:20:15 +08:00
npcm7xx_emc.c hw/net: npcm7xx_emc: set MAC in register space 2023-05-02 15:47:39 +01:00
opencores_eth.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pcnet-pci.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
pcnet.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
pcnet.h net: Replace TAB indentations with spaces 2022-11-11 09:39:03 +01:00
rtl8139.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
smc91c111.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
spapr_llan.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
stellaris_enet.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
sungem.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
sunhme.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
trace-events igb: handle PF/VF reset properly 2023-03-28 13:10:55 +08:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
tulip.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
tulip.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
vhost_net-stub.c virtio-net: add support for configure interrupt 2023-01-08 01:54:22 -05:00
vhost_net.c virtio-net: add support for configure interrupt 2023-01-08 01:54:22 -05:00
virtio-net.c net/net_rx_pkt: Use iovec for net_rx_pkt_set_protocols() 2023-05-23 15:20:15 +08:00
vmware_utils.h hw/net/vmxnet3: Fix code to work on big endian hosts, too 2017-11-20 11:08:00 +08:00
vmxnet3_defs.h include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
vmxnet3.c net/net_rx_pkt: Use iovec for net_rx_pkt_set_protocols() 2023-05-23 15:20:15 +08:00
vmxnet3.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
vmxnet_debug.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
xen_nic.c hw/xen: Use XEN_PAGE_SIZE in PV backend drivers 2023-03-07 17:04:30 +00:00
xgmac.c hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
xilinx_axienet.c Drop duplicate #include 2023-02-08 07:28:05 +01:00
xilinx_ethlite.c hw/net: Move xilinx_ethlite.c to the target-independent source set 2023-05-16 09:14:18 +02:00