Eric Lee / smarc-fsl-linux-kernel

02 May, 2013

1 commit

  • 73287a43c   Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next ... Browse Code »

    Pull networking updates from David Miller:
    "Highlights (1721 non-merge commits, this has to be a record of some
    sort):

    1) Add 'random' mode to team driver, from Jiri Pirko and Eric
    Dumazet.

    2) Make it so that any driver that supports configuration of multiple
    MAC addresses can provide the forwarding database add and del
    calls by providing a default implementation and hooking that up if
    the driver doesn't have an explicit set of handlers. From Vlad
    Yasevich.

    3) Support GSO segmentation over tunnels and other encapsulating
    devices such as VXLAN, from Pravin B Shelar.

    4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.

    5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
    Dukkipati.

    6) In the PHY layer, allow supporting wake-on-lan in situations where
    the PHY registers have to be written for it to be configured.

    Use it to support wake-on-lan in mv643xx_eth.

    From Michael Stapelberg.

    7) Significantly improve firewire IPV6 support, from YOSHIFUJI
    Hideaki.

    8) Allow multiple packets to be sent in a single transmission using
    network coding in batman-adv, from Martin Hundebøll.

    9) Add support for T5 cxgb4 chips, from Santosh Rastapur.

    10) Generalize the VXLAN forwarding tables so that there is more
    flexibility in configurating various aspects of the endpoints.
    From David Stevens.

    11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
    from Dmitry Kravkov.

    12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
    Neira Ayuso.

    13) Start adding networking selftests.

    14) In situations of overload on the same AF_PACKET fanout socket, or
    per-cpu packet receive queue, minimize drop by distributing the
    load to other cpus/fanouts. From Willem de Bruijn and Eric
    Dumazet.

    15) Add support for new payload offset BPF instruction, from Daniel
    Borkmann.

    16) Convert several drivers over to mdoule_platform_driver(), from
    Sachin Kamat.

    17) Provide a minimal BPF JIT image disassembler userspace tool, from
    Daniel Borkmann.

    18) Rewrite F-RTO implementation in TCP to match the final
    specification of it in RFC4138 and RFC5682. From Yuchung Cheng.

    19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
    you like netlink, so I implemented netlink dumping of netlink
    sockets.") From Andrey Vagin.

    20) Remove ugly passing of rtnetlink attributes into rtnl_doit
    functions, from Thomas Graf.

    21) Allow userspace to be able to see if a configuration change occurs
    in the middle of an address or device list dump, from Nicolas
    Dichtel.

    22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
    Frederic Sowa.

    23) Increase accuracy of packet length used by packet scheduler, from
    Jason Wang.

    24) Beginning set of changes to make ipv4/ipv6 fragment handling more
    scalable and less susceptible to overload and locking contention,
    from Jesper Dangaard Brouer.

    25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
    instead. From Hong Zhiguo.

    26) Optimize route usage in IPVS by avoiding reference counting where
    possible, from Julian Anastasov.

    27) Convert IPVS schedulers to RCU, also from Julian Anastasov.

    28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
    Eitzenberger.

    29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
    nfnetlink_log, and nfnetlink_queue. From Gao feng.

    30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.

    31) Support several new r8169 chips, from Hayes Wang.

    32) Support tokenized interface identifiers in ipv6, from Daniel
    Borkmann.

    33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.

    34) Add 802.1ad vlan offload support, from Patrick McHardy.

    35) Support mmap() based netlink communication, also from Patrick
    McHardy.

    36) Support HW timestamping in mlx4 driver, from Amir Vadai.

    37) Rationalize AF_PACKET packet timestamping when transmitting, from
    Willem de Bruijn and Daniel Borkmann.

    38) Bring parity to what's provided by /proc/net/packet socket dumping
    and the info provided by netlink socket dumping of AF_PACKET
    sockets. From Nicolas Dichtel.

    39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
    Poirier"

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
    filter: fix va_list build error
    af_unix: fix a fatal race with bit fields
    bnx2x: Prevent memory leak when cnic is absent
    bnx2x: correct reading of speed capabilities
    net: sctp: attribute printl with __printf for gcc fmt checks
    netlink: kconfig: move mmap i/o into netlink kconfig
    netpoll: convert mutex into a semaphore
    netlink: Fix skb ref counting.
    net_sched: act_ipt forward compat with xtables
    mlx4_en: fix a build error on 32bit arches
    Revert "bnx2x: allow nvram test to run when device is down"
    bridge: avoid OOPS if root port not found
    drivers: net: cpsw: fix kernel warn on cpsw irq enable
    sh_eth: use random MAC address if no valid one supplied
    3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
    tg3: fix to append hardware time stamping flags
    unix/stream: fix peeking with an offset larger than data in queue
    unix/dgram: fix peeking with an offset larger than data in queue
    unix/dgram: peek beyond 0-sized skbs
    openvswitch: Remove unneeded ovs_netdev_get_ifindex()
    ...

    Linus Torvalds
     

13 Apr, 2013

1 commit

  • e1c969f78   TTY: ircomm: fix DTR being raised on hang up ... Browse Code »

    Make sure to check ASYNC_INITIALISED before raising DTR when waking up
    from blocked open in ircomm_tty_block_til_ready.

    Currently DTR could get raised at hang up as a blocked process would
    raise DTR unconditionally before checking for hang up and returning.

    Signed-off-by: Johan Hovold
    Acked-by: David S. Miller
    Signed-off-by: Greg Kroah-Hartman

    Johan Hovold
     

09 Apr, 2013

1 commit

  • c17277f7d   TTY: ircomm, use GFP_KERNEL in ircomm_open() ... Browse Code »

    Hi Greg,

    I'm unsure if you or Dave should take that one as it's for one a TTY
    patch but also living under net/. So I'm uncertain and let you decide!

    Thanks,
    Mathias

    -- >8 --
    Subject: [PATCH] TTY: ircomm, use GFP_KERNEL in ircomm_open()

    We're clearly running in non-atomic context as our only call site is
    able to call wait_event_interruptible(). So we're safe to use GFP_KERNEL
    here instead of GFP_ATOMIC.

    Signed-off-by: Mathias Krause
    Acked-by: Greg Kroah-Hartman
    Signed-off-by: David S. Miller

    Mathias Krause
     

22 Mar, 2013

1 commit

19 Mar, 2013

1 commit

  • aa27a094e   TTY: add tty_port_tty_hangup helper ... Browse Code »

    It allows for cleaning up on a considerable amount of places. They did
    port_get, hangup, kref_put. Now the only thing needed is to call
    tty_port_tty_hangup which does exactly that. And they can also decide
    whether to consider CLOCAL or completely ignore that.

    Signed-off-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     

06 Mar, 2013

4 commits

  • f74861ca8   net/irda: Raise dtr in non-blocking open ... Browse Code »

    DTR/RTS need to be raised, regardless of the open() mode, but not
    if the port has already shutdown.

    Signed-off-by: Peter Hurley
    Signed-off-by: David S. Miller

    Peter Hurley
     
  • 0b176ce3a   net/irda: Use barrier to set task state ... Browse Code »

    Without a memory and compiler barrier, the task state change
    can migrate relative to the condition testing in a blocking loop.
    However, the task state change must be visible across all cpus
    prior to testing those conditions. Failing to do this can result
    in the familiar 'lost wakeup' and this task will hang until killed.

    Signed-off-by: Peter Hurley
    Signed-off-by: David S. Miller

    Peter Hurley
     
  • 2f7c069b9   net/irda: Hold port lock while bumping blocked_open ... Browse Code »

    Although tty_lock() already protects concurrent update to
    blocked_open, that fails to meet the separation-of-concerns between
    tty_port and tty.

    Signed-off-by: Peter Hurley
    Signed-off-by: David S. Miller

    Peter Hurley
     
  • a4ed2e737   net/irda: Fix port open counts ... Browse Code »

    Saving the port count bump is unsafe. If the tty is hung up while
    this open was blocking, the port count is zeroed.

    Explicitly check if the tty was hung up while blocking, and correct
    the port count if not.

    Signed-off-by: Peter Hurley
    Signed-off-by: David S. Miller

    Peter Hurley
     

19 Jan, 2013

1 commit

  • 4f73bc4dd   tty: Added a CONFIG_TTY option to allow removal of TTY ... Browse Code »

    The option allows you to remove TTY and compile without errors. This
    saves space on systems that won't support TTY interfaces anyway.
    bloat-o-meter output is below.

    The bulk of this patch consists of Kconfig changes adding "depends on
    TTY" to various serial devices and similar drivers that require the TTY
    layer. Ideally, these dependencies would occur on a common intermediate
    symbol such as SERIO, but most drivers "select SERIO" rather than
    "depends on SERIO", and "select" does not respect dependencies.

    bloat-o-meter output comparing our previous minimal to new minimal by
    removing TTY. The list is filtered to not show removed entries with awk
    '$3 != "-"' as the list was very long.

    add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)
    function old new delta
    chr_dev_init 166 170 +4
    allow_signal 80 82 +2
    static.__warned 143 142 -1
    disallow_signal 63 62 -1
    __set_special_pids 95 94 -1
    unregister_console 126 121 -5
    start_kernel 546 541 -5
    register_console 593 588 -5
    copy_from_user 45 40 -5
    sys_setsid 128 120 -8
    sys_vhangup 32 19 -13
    do_exit 1543 1526 -17
    bitmap_zero 60 40 -20
    arch_local_irq_save 137 117 -20
    release_task 674 652 -22
    static.spin_unlock_irqrestore 308 260 -48

    Signed-off-by: Joe Millenbach
    Reviewed-by: Jamey Sharp
    Reviewed-by: Josh Triplett
    Signed-off-by: Greg Kroah-Hartman

    Joe Millenbach
     

16 Jan, 2013

3 commits

  • 2e124b4a3   TTY: switch tty_flip_buffer_push ... Browse Code »

    Now, we start converting tty buffer functions to actually use
    tty_port. This will allow us to get rid of the need of tty in many
    call sites. Only tty_port will needed and hence no more
    tty_port_tty_get in those paths.

    Now, the one where most of tty_port_tty_get gets removed:
    tty_flip_buffer_push.

    IOW we also closed all the races in drivers not using tty_port_tty_get
    at all yet.

    Also we move tty_flip_buffer_push declaration from include/linux/tty.h
    to include/linux/tty_flip.h to all others while we are changing it
    anyway.

    Signed-off-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     
  • d6c53c0e9   TTY: move low_latency to tty_port ... Browse Code »

    One point is to have less places where we actually need tty pointer.
    The other is that low_latency is bound to buffer processing and
    buffers are now in tty_port. So it makes sense to move low_latency to
    tty_port too.

    Signed-off-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     
  • 05c7cd399   TTY: switch tty_insert_flip_string ... Browse Code »

    Now, we start converting tty buffer functions to actually use
    tty_port. This will allow us to get rid of the need of tty in many
    call sites. Only tty_port will needed and hence no more
    tty_port_tty_get in those paths.

    tty_insert_flip_string this time.

    Signed-off-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     

16 Nov, 2012

1 commit

  • 191c5f102   TTY: call tty_port_destroy in the rest of drivers ... Browse Code »

    After commit "TTY: move tty buffers to tty_port", the tty buffers are
    not freed in some drivers. This is because tty_port_destructor is not
    called whenever a tty_port is freed. This was an assumption I counted
    with but was unfortunately untrue. So fix the drivers to fulfil this
    assumption.

    To be sure, the TTY buffers (and later some stuff) are gone along with
    the tty_port, we have to call tty_port_destroy at tear-down places.
    This is mostly where the structure containing a tty_port is freed.
    This patch does exactly that -- put tty_port_destroy at those places.

    Signed-off-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     

06 Oct, 2012

1 commit

  • 6f5601251   net, TTY: initialize tty->driver_data before usage ... Browse Code »

    Commit 9c650ffc ("TTY: ircomm_tty, add tty install") split _open() to
    _install() and _open(). It also moved the initialization of driver_data
    out of open(), but never added it to install() - causing a NULL ptr
    deref whenever the driver was used.

    Signed-off-by: Sasha Levin
    Acked-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Sasha Levin
     

06 Sep, 2012

1 commit

  • f21ec3d2d   serial: add a new helper function ... Browse Code »

    In most of the time, the driver needs to check if the cts flow control
    is enabled. But now, the driver checks the ASYNC_CTS_FLOW flag manually,
    which is not a grace way. So add a new wraper function to make the code
    tidy and clean.

    Signed-off-by: Huang Shijie
    Signed-off-by: Greg Kroah-Hartman

    Huang Shijie
     

14 Aug, 2012

1 commit

  • 9c650ffc2   TTY: ircomm_tty, add tty install ... Browse Code »

    This has two outcomes:
    * we give the TTY layer a tty_port
    * we do not find the info structure every time open is called on that
    tty

    Signed-off-by: Jiri Slaby
    Cc: Samuel Ortiz
    Acked-by: Alan Cox
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     

17 Jul, 2012

1 commit

  • adc8d746c   tty: move the termios object into the tty ... Browse Code »

    This will let us sort out a whole pile of tty related races. The
    alternative would be to keep points and refcount the termios objects.
    However
    1. They are tiny anyway
    2. Many devices don't use the stored copies
    3. We can remove a pty special case

    Signed-off-by: Alan Cox
    Signed-off-by: Greg Kroah-Hartman

    Alan Cox
     

13 Jun, 2012

10 commits

16 Apr, 2012

1 commit

09 Mar, 2012

2 commits

  • 410235fd4   TTY: remove unneeded tty->index checks ... Browse Code »

    Checking if tty->index is in bounds is not needed. The tty has the
    index set in the initial open. This is done in get_tty_driver. And it
    can be only in interval num).

    So remove the tests which check exactly this interval. Some are
    left untouched as they check against the current backing device count.
    (Leaving apart that the check is racy in most of the cases.)

    Signed-off-by: Jiri Slaby
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     
  • 2f16669d3   TTY: remove re-assignments to tty_driver members ... Browse Code »

    All num, magic and owner are set by alloc_tty_driver. No need to
    re-set them on each allocation site.

    pti driver sets something different to what it passes to
    alloc_tty_driver. It is not a bug, since we don't use the lines
    parameter in any way. Anyway this is fixed, and now we do the right
    thing.

    Signed-off-by: Jiri Slaby
    Acked-by: Tilman Schmidt
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     

26 Aug, 2011

1 commit

  • 0b058353a   TTY: use tty_wait_until_sent_from_close in other drivers ... Browse Code »

    Let's use the newly added helper to avoid stalls in drivers which are
    not yet ported to tty_port helpers.

    Those which are broken (call tty_wait_until_sent with irqs disabled)
    are left untouched. They are in a deeper trouble than we are trying to
    solve here. This includes amiserial, 68328serial, 68360serial and
    crisv10.

    Signed-off-by: Jiri Slaby
    Acked-by: Arnd Bergmann
    Signed-off-by: Greg Kroah-Hartman

    Jiri Slaby
     

17 Jun, 2011

1 commit

  • ea1107338   net: Remove casts of void * ... Browse Code »

    Unnecessary casts of void * clutter the code.

    These are the remainder casts after several specific
    patches to remove netdev_priv and dev_priv.

    Done via coccinelle script:

    $ cat cast_void_pointer.cocci
    @@
    type T;
    T *pt;
    void *pv;
    @@

    - pt = (T *)pv;
    + pt = pv;

    Signed-off-by: Joe Perches
    Acked-by: Paul Moore
    Signed-off-by: David S. Miller

    Joe Perches
     

20 May, 2011

2 commits

13 May, 2011

1 commit

  • cbfd1526f   net/irda/ircomm_tty.c: Use flip buffers to deliver data ... Browse Code »

    use tty_insert_flip_string and tty_flip_buffer_push to deliver incoming data
    packets from the IrDA device instead of delivering the packets directly to the
    line discipline. Following later approach resulted in warning "Sleeping function
    called from invalid context".

    Signed-off-by: Amit Virdi
    Acked-by: Alan Cox
    Signed-off-by: David S. Miller

    Amit Virdi
     

18 Feb, 2011

3 commits

23 Nov, 2010

1 commit