From: Arnd Bergmann <arnd@xxxxxxxx> This series is some fallout from the series I sent earlier today to get rid of compat_alloc_user_space() and copy_in_user(). I wanted to be sure I address all the ways that 'struct ifreq' is used in device drivers through .ndo_do_ioctl, originally to prove that my approach of changing the struct definition was correct, but then I discarded that approach and went on anyway. Roughly, the contents here are: - split out all the users of SIOCDEVPRIVATE ioctls into a separate ndo_siocdevprivate callback, to better see what gets used where - fix compat handling for those drivers that pass data directly inside of 'ifreq' rather than using an indirect ifr_data pointer - remove unreachable code in ndo_ioctl handlers that relies on command codes we never pass into that, in particular for wireless drivers - split out the ethernet specific ioctls into yet another ndo_eth_ioctl callback, as these are by far the most common use of ndo_do_ioctl today. I considered splitting them further into MII and timestamp controls, but went with the simpler change for now. At this point, only a few oddball things remain in ndo_do_ioctl: bridge, bonding, wan and two socket protocols passing down SIOCSIFADDR/SIOCGIFADDR. Again, these could all be moved into other callbacks as well if desired. Any suggestions on how to proceed? I think the ndo_siocdevprivate change is the most interesting here, and I would like to get that merged. For the wireless drivers, removing the old drivers instead of just the dead code might be an alternative, depending on whether anyone thinks there might still be users. The ndo_eth_ioctl change was something I did because it seemed easy, but I'm not super attached to it, and it could well be done differently. None of this is really tested beyond simple compile tests, please review. All of it is also available as part of a larger branch at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git \ compat-alloc-user-space-6 Arnd Arnd Bergmann (28): net: split out SIOCDEVPRIVATE handling from dev_ioctl staging: rtlwifi: use siocdevprivate staging: wlan-ng: use siocdevprivate hostap: use ndo_siocdevprivate wireless: remove old ioctls bridge: use ndo_siocdevprivate phonet: use siocdevprivate tulip: use ndo_siocdevprivate bonding: use siocdevprivate appletalk: use ndo_siocdevprivate hamachi: use ndo_siocdevprivate tehuti: use ndo_siocdevprivate eql: use ndo_siocdevprivate fddi: use ndo_siocdevprivate net: usb: use ndo_siocdevprivate slip/plip: use ndo_siocdevprivate qeth: use ndo_siocdevprivate cxgb3: use ndo_siocdevprivate dev_ioctl: pass SIOCDEVPRIVATE data separately dev_ioctl: split out ndo_eth_ioctl wan: use ndo_siocdevprivate hamradio: use ndo_siocdevprivate airo: use ndo_siocdevprivate ip_tunnel: use ndo_siocdevprivate hippi: use ndo_siocdevprivate sb1000: use ndo_siocdevprivate ppp: use ndo_siocdevprivate net: socket: return changed ifreq from SIOCDEVPRIVATE Documentation/networking/netdevices.rst | 4 + Documentation/networking/timestamping.rst | 6 +- drivers/infiniband/ulp/ipoib/ipoib_main.c | 8 +- drivers/net/appletalk/ipddp.c | 15 +- drivers/net/bonding/bond_main.c | 72 +- drivers/net/eql.c | 23 +- drivers/net/ethernet/3com/3c574_cs.c | 2 +- drivers/net/ethernet/3com/3c59x.c | 4 +- drivers/net/ethernet/8390/ax88796.c | 2 +- drivers/net/ethernet/8390/axnet_cs.c | 2 +- drivers/net/ethernet/8390/pcnet_cs.c | 2 +- drivers/net/ethernet/adaptec/starfire.c | 2 +- drivers/net/ethernet/agere/et131x.c | 2 +- drivers/net/ethernet/allwinner/sun4i-emac.c | 2 +- drivers/net/ethernet/amd/amd8111e.c | 2 +- drivers/net/ethernet/amd/au1000_eth.c | 2 +- drivers/net/ethernet/amd/pcnet32.c | 2 +- drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 +- .../net/ethernet/aquantia/atlantic/aq_main.c | 2 +- drivers/net/ethernet/arc/emac_main.c | 2 +- drivers/net/ethernet/atheros/ag71xx.c | 2 +- drivers/net/ethernet/atheros/alx/main.c | 2 +- .../net/ethernet/atheros/atl1c/atl1c_main.c | 2 +- .../net/ethernet/atheros/atl1e/atl1e_main.c | 2 +- drivers/net/ethernet/atheros/atlx/atl1.c | 2 +- drivers/net/ethernet/atheros/atlx/atl2.c | 2 +- drivers/net/ethernet/aurora/nb8800.c | 2 +- drivers/net/ethernet/broadcom/b44.c | 2 +- drivers/net/ethernet/broadcom/bcm63xx_enet.c | 4 +- drivers/net/ethernet/broadcom/bgmac.c | 2 +- drivers/net/ethernet/broadcom/bnx2.c | 2 +- .../net/ethernet/broadcom/bnx2x/bnx2x_main.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- .../net/ethernet/broadcom/genet/bcmgenet.c | 2 +- drivers/net/ethernet/broadcom/sb1250-mac.c | 2 +- drivers/net/ethernet/broadcom/tg3.c | 2 +- drivers/net/ethernet/cadence/macb_main.c | 4 +- .../net/ethernet/cavium/liquidio/lio_main.c | 2 +- .../ethernet/cavium/liquidio/lio_vf_main.c | 2 +- .../net/ethernet/cavium/octeon/octeon_mgmt.c | 2 +- .../net/ethernet/cavium/thunder/nicvf_main.c | 2 +- drivers/net/ethernet/chelsio/cxgb/cxgb2.c | 2 +- .../net/ethernet/chelsio/cxgb3/cxgb3_main.c | 14 +- .../net/ethernet/chelsio/cxgb4/cxgb4_main.c | 2 +- .../ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 2 +- drivers/net/ethernet/cirrus/ep93xx_eth.c | 2 +- drivers/net/ethernet/davicom/dm9000.c | 2 +- drivers/net/ethernet/dec/tulip/de4x5.c | 9 +- drivers/net/ethernet/dec/tulip/tulip_core.c | 2 +- drivers/net/ethernet/dec/tulip/winbond-840.c | 2 +- drivers/net/ethernet/dlink/dl2k.c | 2 +- drivers/net/ethernet/dlink/sundance.c | 2 +- drivers/net/ethernet/dnet.c | 2 +- drivers/net/ethernet/ethoc.c | 2 +- drivers/net/ethernet/faraday/ftgmac100.c | 2 +- drivers/net/ethernet/faraday/ftmac100.c | 2 +- drivers/net/ethernet/fealnx.c | 2 +- .../net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +- .../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +- .../net/ethernet/freescale/enetc/enetc_pf.c | 2 +- .../net/ethernet/freescale/enetc/enetc_vf.c | 2 +- drivers/net/ethernet/freescale/fec_main.c | 2 +- drivers/net/ethernet/freescale/fec_mpc52xx.c | 2 +- .../ethernet/freescale/fs_enet/fs_enet-main.c | 2 +- drivers/net/ethernet/freescale/gianfar.c | 2 +- drivers/net/ethernet/freescale/ucc_geth.c | 2 +- drivers/net/ethernet/hisilicon/hisi_femac.c | 2 +- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 2 +- .../net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +- drivers/net/ethernet/ibm/emac/core.c | 4 +- drivers/net/ethernet/ibm/ibmveth.c | 2 +- drivers/net/ethernet/intel/e100.c | 2 +- drivers/net/ethernet/intel/e1000/e1000_main.c | 2 +- drivers/net/ethernet/intel/e1000e/netdev.c | 2 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +- drivers/net/ethernet/intel/igb/igb_main.c | 2 +- drivers/net/ethernet/intel/igbvf/netdev.c | 2 +- drivers/net/ethernet/intel/igc/igc_main.c | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +- drivers/net/ethernet/jme.c | 2 +- drivers/net/ethernet/korina.c | 2 +- drivers/net/ethernet/lantiq_etop.c | 2 +- drivers/net/ethernet/marvell/mv643xx_eth.c | 2 +- drivers/net/ethernet/marvell/mvneta.c | 2 +- .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- .../ethernet/marvell/octeontx2/nic/otx2_pf.c | 2 +- drivers/net/ethernet/marvell/pxa168_eth.c | 2 +- drivers/net/ethernet/marvell/skge.c | 2 +- drivers/net/ethernet/marvell/sky2.c | 4 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +- drivers/net/ethernet/mediatek/mtk_star_emac.c | 2 +- .../net/ethernet/mellanox/mlx4/en_netdev.c | 2 +- .../net/ethernet/mellanox/mlx5/core/en_main.c | 2 +- .../ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 2 +- .../mellanox/mlx5/core/ipoib/ipoib_vlan.c | 2 +- .../net/ethernet/mellanox/mlxsw/spectrum.c | 2 +- drivers/net/ethernet/micrel/ks8851_common.c | 2 +- drivers/net/ethernet/micrel/ksz884x.c | 2 +- drivers/net/ethernet/microchip/lan743x_main.c | 2 +- drivers/net/ethernet/mscc/ocelot_net.c | 2 +- drivers/net/ethernet/natsemi/natsemi.c | 2 +- drivers/net/ethernet/neterion/s2io.c | 2 +- .../net/ethernet/neterion/vxge/vxge-main.c | 2 +- drivers/net/ethernet/nxp/lpc_eth.c | 2 +- .../ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 2 +- drivers/net/ethernet/packetengines/hamachi.c | 63 +- .../net/ethernet/packetengines/yellowfin.c | 2 +- drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- drivers/net/ethernet/qualcomm/emac/emac.c | 2 +- drivers/net/ethernet/rdc/r6040.c | 2 +- drivers/net/ethernet/realtek/8139cp.c | 2 +- drivers/net/ethernet/realtek/8139too.c | 2 +- drivers/net/ethernet/realtek/r8169_main.c | 2 +- drivers/net/ethernet/renesas/ravb_main.c | 2 +- drivers/net/ethernet/renesas/sh_eth.c | 4 +- .../net/ethernet/samsung/sxgbe/sxgbe_main.c | 2 +- drivers/net/ethernet/sfc/efx.c | 2 +- drivers/net/ethernet/sfc/falcon/efx.c | 2 +- drivers/net/ethernet/sgi/ioc3-eth.c | 2 +- drivers/net/ethernet/sgi/meth.c | 2 +- drivers/net/ethernet/sis/sis190.c | 2 +- drivers/net/ethernet/sis/sis900.c | 2 +- drivers/net/ethernet/smsc/epic100.c | 2 +- drivers/net/ethernet/smsc/smc91c92_cs.c | 2 +- drivers/net/ethernet/smsc/smsc911x.c | 2 +- drivers/net/ethernet/smsc/smsc9420.c | 2 +- drivers/net/ethernet/socionext/netsec.c | 2 +- drivers/net/ethernet/socionext/sni_ave.c | 2 +- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/ethernet/sun/cassini.c | 2 +- drivers/net/ethernet/sun/niu.c | 2 +- drivers/net/ethernet/sun/sungem.c | 2 +- .../net/ethernet/synopsys/dwc-xlgmac-net.c | 2 +- drivers/net/ethernet/tehuti/tehuti.c | 18 +- drivers/net/ethernet/ti/am65-cpsw-nuss.c | 2 +- drivers/net/ethernet/ti/cpmac.c | 2 +- drivers/net/ethernet/ti/cpsw.c | 2 +- drivers/net/ethernet/ti/cpsw_new.c | 2 +- drivers/net/ethernet/ti/davinci_emac.c | 2 +- drivers/net/ethernet/ti/netcp_core.c | 2 +- drivers/net/ethernet/ti/tlan.c | 2 +- drivers/net/ethernet/toshiba/spider_net.c | 2 +- drivers/net/ethernet/toshiba/tc35815.c | 2 +- drivers/net/ethernet/tundra/tsi108_eth.c | 2 +- drivers/net/ethernet/via/via-rhine.c | 2 +- drivers/net/ethernet/via/via-velocity.c | 2 +- drivers/net/ethernet/xilinx/ll_temac_main.c | 2 +- .../net/ethernet/xilinx/xilinx_axienet_main.c | 2 +- drivers/net/ethernet/xilinx/xilinx_emaclite.c | 2 +- drivers/net/ethernet/xircom/xirc2ps_cs.c | 2 +- drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 +- drivers/net/fddi/skfp/skfddi.c | 18 +- drivers/net/hamradio/baycom_epp.c | 9 +- drivers/net/hamradio/baycom_par.c | 12 +- drivers/net/hamradio/baycom_ser_fdx.c | 12 +- drivers/net/hamradio/baycom_ser_hdx.c | 12 +- drivers/net/hamradio/bpqether.c | 9 +- drivers/net/hamradio/dmascc.c | 17 +- drivers/net/hamradio/hdlcdrv.c | 20 +- drivers/net/hamradio/scc.c | 13 +- drivers/net/hamradio/yam.c | 13 +- drivers/net/hippi/rrunner.c | 11 +- drivers/net/hippi/rrunner.h | 3 +- drivers/net/macvlan.c | 8 +- drivers/net/phy/phy.c | 4 +- drivers/net/plip/plip.c | 11 +- drivers/net/ppp/ppp_generic.c | 6 +- drivers/net/sb1000.c | 20 +- drivers/net/slip/slip.c | 12 +- drivers/net/usb/asix_devices.c | 6 +- drivers/net/usb/ax88172a.c | 2 +- drivers/net/usb/ax88179_178a.c | 2 +- drivers/net/usb/cdc-phonet.c | 5 +- drivers/net/usb/dm9601.c | 2 +- drivers/net/usb/lan78xx.c | 2 +- drivers/net/usb/mcs7830.c | 2 +- drivers/net/usb/pegasus.c | 4 +- drivers/net/usb/r8152.c | 2 +- drivers/net/usb/rtl8150.c | 5 +- drivers/net/usb/smsc75xx.c | 2 +- drivers/net/usb/smsc95xx.c | 2 +- drivers/net/usb/sr9700.c | 2 +- drivers/net/usb/sr9800.c | 2 +- drivers/net/wan/c101.c | 20 +- drivers/net/wan/dlci.c | 7 +- drivers/net/wan/farsync.c | 38 +- drivers/net/wan/hdlc_fr.c | 3 + drivers/net/wan/lmc/lmc_main.c | 38 +- drivers/net/wan/n2.c | 18 +- drivers/net/wan/pc300too.c | 19 +- drivers/net/wan/pci200syn.c | 19 +- drivers/net/wan/sbni.c | 12 +- drivers/net/wan/sdla.c | 8 +- drivers/net/wireless/atmel/atmel.c | 72 -- drivers/net/wireless/cisco/airo.c | 15 +- drivers/net/wireless/intersil/hostap/hostap.h | 4 +- .../wireless/intersil/hostap/hostap_ioctl.c | 227 +--- .../wireless/intersil/hostap/hostap_main.c | 6 +- drivers/s390/net/qeth_core.h | 2 + drivers/s390/net/qeth_core_main.c | 35 +- drivers/s390/net/qeth_l2_main.c | 2 +- drivers/s390/net/qeth_l3_main.c | 10 +- drivers/staging/ks7010/ks_wlan_net.c | 21 - drivers/staging/octeon/ethernet.c | 12 +- drivers/staging/rtl8188eu/include/ieee80211.h | 2 - .../staging/rtl8188eu/include/osdep_intf.h | 3 +- .../staging/rtl8188eu/include/rtw_android.h | 3 +- .../staging/rtl8188eu/os_dep/ioctl_linux.c | 941 -------------- drivers/staging/rtl8188eu/os_dep/os_intfs.c | 2 +- .../staging/rtl8188eu/os_dep/rtw_android.c | 13 +- drivers/staging/rtl8192u/r8192U_core.c | 109 -- drivers/staging/rtl8712/os_intfs.c | 1 - drivers/staging/rtl8712/osdep_intf.h | 2 - drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 125 -- .../staging/rtl8723bs/include/osdep_intf.h | 3 +- .../staging/rtl8723bs/os_dep/ioctl_linux.c | 1089 +---------------- drivers/staging/rtl8723bs/os_dep/os_intfs.c | 21 +- drivers/staging/wlan-ng/p80211netdev.c | 75 +- include/linux/hdlcdrv.h | 2 +- include/linux/netdevice.h | 13 +- include/net/dsa.h | 14 +- include/net/ip_tunnels.h | 3 +- net/8021q/vlan_dev.c | 6 +- net/bridge/br_device.c | 1 + net/bridge/br_ioctl.c | 36 +- net/bridge/br_private.h | 2 + net/core/dev_ioctl.c | 73 +- net/dsa/master.c | 6 +- net/dsa/slave.c | 2 +- net/ethtool/ioctl.c | 3 +- net/ipv4/ip_gre.c | 2 +- net/ipv4/ip_tunnel.c | 9 +- net/ipv4/ip_vti.c | 2 +- net/ipv4/ipip.c | 2 +- net/ipv6/ip6_gre.c | 16 +- net/ipv6/ip6_tunnel.c | 18 +- net/ipv6/ip6_vti.c | 21 +- net/ipv6/sit.c | 35 +- net/phonet/pn_dev.c | 6 +- net/socket.c | 57 +- 240 files changed, 829 insertions(+), 3253 deletions(-) Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-wireless@xxxxxxxxxxxxxxx Cc: bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx Cc: linux-hams@xxxxxxxxxxxxxxx Cc: Jakub Kicinski <kuba@xxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> Cc: Andrew Lunn <andrew@xxxxxxx> Cc: Heiner Kallweit <hkallweit1@xxxxxxxxx> -- 2.27.0
