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2009-11-08net: Support specifying the network namespace upon device creation.Eric W. Biederman
There is no good reason to not support userspace specifying the network namespace during device creation, and it makes it easier to create a network device and pass it to a child network namespace with a well known name. We have to be careful to ensure that the target network namespace for the new device exists through the life of the call. To keep that logic clear I have factored out the network namespace grabbing logic into rtnl_link_get_net. In addtion we need to continue to pass the source network namespace to the rtnl_link_ops.newlink method so that we can find the base device source network namespace. Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2009-11-08appletalk/ddp.c: Neaten checksum functionJoe Perches
atalk_sum_partial can now use the rol16 function in bitops.h Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08ipv6: avoid dev_hold()/dev_put() in rawv6_bind()Eric Dumazet
Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08gianfar: Fix compiler and sparse warningsAnton Vorontsov
commit fba4ed030cfae7efdb6b79a57b0c5a9d72c9de83 ("gianfar: Add Multiple Queue Support") introduced the following warnings: CHECK gianfar.c gianfar.c:333:8: warning: incorrect type in assignment (different address spaces) gianfar.c:333:8: expected unsigned int [usertype] *baddr gianfar.c:333:8: got unsigned int [noderef] <asn:2>*<noident> [... 67 lines skipped ...] gianfar.c:2565:3: warning: incorrect type in argument 1 (different type sizes) gianfar.c:2565:3: expected unsigned long const *addr gianfar.c:2565:3: got unsigned int *<noident> CC gianfar.o gianfar.c: In function 'gfar_probe': gianfar.c:985: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:985: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:993: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:993: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c: In function 'gfar_configure_coalescing': gianfar.c:1680: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:1680: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:1688: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:1688: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c: In function 'gfar_poll': gianfar.c:2565: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:2565: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type gianfar.c:2566: warning: passing argument 2 of 'test_bit' from incompatible pointer type gianfar.c:2585: warning: passing argument 2 of 'set_bit' from incompatible pointer type Following warnings left unfixed (looks like sparse doesn't like locks in loops, so __acquires/__releases() doesn't help): gianfar.c:441:40: warning: context imbalance in 'lock_rx_qs': wrong count at exit gianfar.c:441:40: context '<noident>': wanted 0, got 1 gianfar.c:449:40: warning: context imbalance in 'lock_tx_qs': wrong count at exit gianfar.c:449:40: context '<noident>': wanted 0, got 1 gianfar.c:458:3: warning: context imbalance in 'unlock_rx_qs': __context__ statement expected different context gianfar.c:458:3: context '<noident>': wanted >= 0, got -1 gianfar.c:466:3: warning: context imbalance in 'unlock_tx_qs': __context__ statement expected different context gianfar.c:466:3: context '<noident>': wanted >= 0, got -1 Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08fsl_pq_mdio: Fix compiler/sparse warnings (part 2)Anton Vorontsov
This patch fixes following warnings: fsl_pq_mdio.c:112:38: warning: cast adds address space to expression (<asn:2>) fsl_pq_mdio.c:124:38: warning: cast adds address space to expression (<asn:2>) fsl_pq_mdio.c:133:38: warning: cast adds address space to expression (<asn:2>) fsl_pq_mdio.c:414:11: warning: cast adds address space to expression (<asn:2>) Instead of adding __force all over the place, introduce convenient fsl_pq_mdio_get_regs() call that does the ugly casting just once. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08fsl_pq_mdio: Fix compiler/sparse warnings (part 1)Anton Vorontsov
commit 1d2397d742b7a2b39b2f09dd9da3b9d1463f55e9 ("fsl_pq_mdio: Add Suport for etsec2.0 devices") introduced the following warnings: CHECK fsl_pq_mdio.c fsl_pq_mdio.c:287:22: warning: incorrect type in initializer (different base types) fsl_pq_mdio.c:287:22: expected unknown type 11 const *__mptr fsl_pq_mdio.c:287:22: got unsigned long long [unsigned] [assigned] [usertype] addr fsl_pq_mdio.c:287:19: warning: incorrect type in assignment (different base types) fsl_pq_mdio.c:287:19: expected unsigned long long [unsigned] [usertype] ioremap_miimcfg fsl_pq_mdio.c:287:19: got struct fsl_pq_mdio *<noident> CC fsl_pq_mdio.o fsl_pq_mdio.c: In function 'fsl_pq_mdio_probe': fsl_pq_mdio.c:287: warning: initialization makes pointer from integer without a cast fsl_pq_mdio.c:287: warning: assignment makes integer from pointer without a cast These warnings are not easy to fix without ugly __force casts. So, instead of introducing the casts, rework the code to substitute an offset from an already mapped area. This makes the code a lot simpler and less duplicated. Plus, from now on we don't actually map reserved registers on non-etsec2.0 devices, so we have more chances to catch programming errors. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07rtnetlink: CleanupsEric Dumazet
Pure cleanups patch Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07net: kill proto_ops wrapperArnd Bergmann
All users of wrapped proto_ops are now gone, so we can safely remove the wrappers as well. Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07net/x25: push BKL usage into x25_protoArnd Bergmann
The x25 driver uses lock_kernel() implicitly through its proto_ops wrapper. The makes the usage explicit in order to get rid of that wrapper and to better document the usage of the BKL. The next step should be to get rid of the usage of the BKL in x25 entirely, which requires understanding what data structures need serialized accesses. Cc: Henner Eisen <eis@baty.hanse.de> Cc: David S. Miller <davem@davemloft.net> Cc: linux-x25@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07net/irda: push BKL into proto_opsArnd Bergmann
The irda driver uses the BKL implicitly in its protocol operations. Replace the wrapped proto_ops with explicit lock_kernel() calls makes the usage more obvious and shrinks the size of the object code. The calls t lock_kernel() should eventually all be replaced by other serialization methods, which requires finding out The calls t lock_kernel() should eventually all be replaced by other serialization methods, which requires finding out which data actually needs protection. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07net/ipx: push down BKL into a ipx_dgram_opsArnd Bergmann
Making the BKL usage explicit in ipx makes it more obvious where it is used, reduces code size and helps getting rid of the BKL in common code. I did not analyse how to kill lock_kernel from ipx entirely, this will involve either proving that it's not needed, or replacing with a proper mutex or spinlock, after finding out which data structures are protected by the lock. Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: David S. Miller <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07net/appletalk: push down BKL into a atalk_dgram_opsArnd Bergmann
Making the BKL usage explicit in appletalk makes it more obvious where it is used, reduces code size and helps getting rid of the BKL in common code. I did not analyse how to kill lock_kernel from appletalk entirely, this will involve either proving that it's not needed, or replacing with a proper mutex or spinlock, after finding out which data structures are protected by the lock. Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: David S. Miller <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07atl1c: change atl1c_buffer struct and restructure clean atl1c_buffer procedureJie Yang
change atl1c_buffer struct, use "u16 flags" instead of "u16 state" to store more infomation for atl1c_buffer, and restructure clean atl1c_buffer procedure, add common api atl1c_clean_buffer. Signed-off-by: Jie Yang <jie.yang@atheros.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-07net: Replace old style lock initializerThomas Gleixner
SPIN_LOCK_UNLOCKED is deprecated. Use DEFINE_SPINLOCK instead. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06net: compat: No need to define IFHWADDRLEN and IFNAMSIZ twice.David S. Miller
It's defined colloqually in linux/if.h and linux/compat.h includes that. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06net, compat_ioctl: handle more ioctls correctlyArnd Bergmann
The MII ioctls and SIOCSIFNAME need to go through ifsioc conversion, which they never did so far. Some others are not implemented in the native path, so we can just return -EINVAL directly. Add IFSLAVE ioctls to the EINVAL list and move it to the end to optimize the code path for the common case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06compat: move sockios handling to net/socket.cArnd Bergmann
This removes the original socket compat_ioctl code from fs/compat_ioctl.c and converts the code from the copy in net/socket.c into a single function. We add a few cycles of runtime to compat_sock_ioctl() with the long switch() statement, but gain some cycles in return by simplifying the call chain to get there. Due to better inlining, save 1.5kb of object size in the process, and enable further savings: before: text data bss dec hex filename 13540 18008 2080 33628 835c obj/fs/compat_ioctl.o 14565 636 40 15241 3b89 obj/net/socket.o after: text data bss dec hex filename 8916 15176 2080 26172 663c obj/fs/compat_ioctl.o 20725 636 40 21401 5399 obj/net/socket.o Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06appletalk: handle SIOCATALKDIFADDR compat ioctlArnd Bergmann
We must not have a compat ioctl handler for SIOCATALKDIFADDR in common code, because the same number is used in other protocols with different data structures. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06net: copy socket ioctl code to net/socket.hArnd Bergmann
This makes an identical copy of the socket compat_ioctl code from fs/compat_ioctl.c to net/socket.c, as a preparation for moving the functionality in a way that can be easily reviewed. The code is hidden inside of #if 0 and gets activated in the patch that will make it work. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06net, compat_ioctl: handle socket ioctl abuses in tty driversArnd Bergmann
Slip and a few other drivers use the same ioctl numbers on tty devices that are normally meant for sockets. This causes problems with our compat_ioctl handling that tries to convert the data structures in a different format. Fortunately, these five drivers all use 32 bit compatible data structures in the ioctl numbers, so we can just add a trivial compat_ioctl conversion function to each of them. SIOCSIFENCAP and SIOCGIFENCAP do not need to live in fs/compat_ioctl.c after this any more, and they are not used on any sockets. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06net/tun: handle compat_ioctl directlyArnd Bergmann
The tun driver is the only code in the kernel that operates on a character device with struct ifreq. Change the driver to handle the conversion itself so we can contain the remaining ifreq handling in the socket layer. This also fixes a bug in the handling of invalid ioctl numbers on an unbound tun device. The driver treats this as a TUNSETIFF in native mode, but there is no way for the generic compat_ioctl() function to emulate this behaviour. Possibly the driver was only doing this accidentally anyway, but if any code relies on this misfeature, it now also works in compat mode. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06compat: add struct compat_ifreq etc to compat.hArnd Bergmann
In order to move socket ioctl conversion code into multiple places in the socket code, we need a common defintion of the data structures it uses. Also change the name from ifreq32 to compat_ifreq to follow the naming convention for compat.h Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06Merge branch 'for-next' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan
2009-11-06Merge branch 'linux-2.6.33.y' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax
2009-11-06ieee802154: add support for creation/removal of logic interfacesDmitry Eremin-Solenikov
Add support for two more NL802154 commands: ADD_IFACE and DEL_IFACE, thus allowing creation and removal of logic WPAN interfaces on the top of wpan-phy. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: add PHY_NAME to LIST_IFACE command resultsDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: add two nl802154 helpersDmitry Eremin-Solenikov
Add two nl802154 helpers: one for starting a reply message, one for sending. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06fakehard: mlme_ops->get_phy implementationDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: add an mlme_ops call to retrieve PHY objectDmitry Eremin-Solenikov
ops->get_phy should increment reference to wpan-phy. As we return the external structure, we should do refcounting correctly. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06fakehard: claim all 2.4 Ghz channels as supportedDmitry Eremin-Solenikov
Make fakehard device claim all 2.4 Ghz channels from 802.15.4-2006, 802.15.4a-2007 as supported by the hw. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06fakehard: no need to export net_to_phy, make it staticDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: add LIST_PHY command supportDmitry Eremin-Solenikov
Add nl802154 command to get information about PHY's present in the system. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: split away MAC commands implementationDmitry Eremin-Solenikov
Move all mac-related stuff to separate file so that ieee802154/netlink.c contains only generic code. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: merge nl802154 and wpan-class in single moduleDmitry Eremin-Solenikov
There is no real need to have ieee802154 interfaces separate into several small modules, as neither of them has it's own use. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06ieee802154: constify struct net_device in some operationsDmitry Eremin-Solenikov
Some of ieee802154 operations really shouldn't change passed net_device. Constify passed argument. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06wpan-phy: follow usual patter of devices registrationDmitry Eremin-Solenikov
Follow the usual pattern of devices registration by adding new function (wpan_phy_set_dev) that sets child->parent relationship and removing parent argument from wpan_phy_register call. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06wpan-phy: allow specifying a per-page channel maskDmitry Eremin-Solenikov
IEEE 802.15.4-2006 defines channel pages that hold channels (max 32 pages, 27 channels per page). Allow the driver to specify supported channels on pages, other than the first one. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06wpan-phy: use snprintf to limit the amount of chars writtenDmitry Eremin-Solenikov
Use snprintf to limit the amount of chars put in the buffer for attr -> show. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06wpan-phy: init channel/page fieldsDmitry Eremin-Solenikov
Set page to zero (for compatibility w/ devices supporting only first page). Also init channel by default to -1 to disallow transfers for non-initialised devices. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06wpan-phy: add wpan-phy iteration functionsDmitry Eremin-Solenikov
Add API to iterate over the wpan-phy instances. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06wpan-phy: add a helper to put the wpan_phy deviceDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/usb/cdc_ether.c All CDC ethernet devices of type USB_CLASS_COMM need to use '&mbm_info'. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06decnet: netdevice refcount leakEric Dumazet
While working on device refcount stuff, I found a device refcount leak through DECNET. This nasty bug can be used to hold refcounts on any !DECNET netdevice. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06netfilter: nf_nat: fix NAT issue in 2.6.30.4+Jozsef Kadlecsik
Vitezslav Samel discovered that since 2.6.30.4+ active FTP can not work over NAT. The "cause" of the problem was a fix of unacknowledged data detection with NAT (commit a3a9f79e361e864f0e9d75ebe2a0cb43d17c4272). However, actually, that fix uncovered a long standing bug in TCP conntrack: when NAT was enabled, we simply updated the max of the right edge of the segments we have seen (td_end), by the offset NAT produced with changing IP/port in the data. However, we did not update the other parameter (td_maxend) which is affected by the NAT offset. Thus that could drift away from the correct value and thus resulted breaking active FTP. The patch below fixes the issue by *not* updating the conntrack parameters from NAT, but instead taking into account the NAT offsets in conntrack in a consistent way. (Updating from NAT would be more harder and expensive because it'd need to re-calculate parameters we already calculated in conntrack.) Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06be2net: Fix CQE_STATUS_EXTD_SHIFT defineSathya Perla
Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05net: Fix build warning in sock_bindtodevice().David S. Miller
net/core/sock.c: In function 'sock_setsockopt': net/core/sock.c:396: warning: 'index' may be used uninitialized in this function net/core/sock.c:396: note: 'index' was declared here GCC can't see that all paths initialize index, so just set it to the default (0) and eliminate the specific code block that handles the null device name string. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05pktgen: tx_bytes might be slightly wrongEric Dumazet
cur_pkt_size can be changed in proc fs while pktgen is running, we better use a private field to get precise tx-bytes counter. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05net: sock_bindtodevice() RCU-ificationEric Dumazet
Avoid dev_hold()/dev_put() in sock_bindtodevice() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05ip_frag: dont touch device refcountEric Dumazet
When sending fragmentation expiration ICMP V4/V6 messages, we can avoid touching device refcount, thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05net_cls: Use __dev_get_by_index()Eric Dumazet
We hold RTNL in tc_dump_tfilter(), we can avoid dev_hold()/dev_put() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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