Eric Lee / smarc-fsl-linux-kernel

17 Aug, 2008

1 commit

  • b09c3e3f1   removed unused #include <version.h> ... Browse Code »

    The drivers below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
    drivers/char/pcmcia/ipwireless/tty.c
    drivers/char/synclink_gt.c
    drivers/char/xilinx_hwicap/xilinx_hwicap.c

    This patch removes the said #include .

    Signed-off-by: Huang Weiyi
    Signed-off-by: Linus Torvalds

    Huang Weiyi
     

07 Aug, 2008

1 commit

24 Jul, 2008

1 commit

23 Jul, 2008

7 commits

  • c68a99cda   synclink_gt fix locking in error path of rx enable ... Browse Code »

    Fix locking in error path of rx_enable() introduced by
    synclink_gt-add-rx-dma-buffer-fill-level-control patch.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • 814dae031   synclink_gt: add rx DMA buffer fill level control ... Browse Code »

    Add run time control for receive DMA buffer fill level to allow
    application to control receive latency when using stream oriented serial
    protocols that pass receive data to application only after a DMA buffer
    fills. This was previously a compile time option, but run time control is
    needed when application changes data rate (and latency requirements) or
    uses different data rates on different ports.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • 993456cdc   synclink_gt: leave transmitter in reset state after configuration ... Browse Code »

    Leave the transmitter in reset state after configuration so that transmit
    signal is held at mark until transmitter is explicitly enabled by
    application, otherwise transmitter sends idle pattern.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • 403214d0a   synclink_gt: improve TIOCOUTQ accuracy ... Browse Code »

    Improve the accuracy of TIOCOUTQ value as implemented in chars_in_buffer()
    method by walking and counting tx DMA buffers, reading controller tx FIFO
    level and accounting for controller tx shift register. The greatly
    improves application control of transmit latency at lower data rates.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • e5590717a   synclink_gt: add serial bit order control ... Browse Code »

    Add control of hardware serial bit order between LSB first
    (default/standard) and MSB first.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • 8a38c2851   synclink_gt: improve and simplify write method ... Browse Code »

    Improve write method by allowing multiple HDLC frames to be loaded into tx
    DMA buffer ring for continuous frame transmission. This simplifies the
    transmit code by using the common procedures for all serial protocols.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • 9e98966c7   tty: rework break handling ... Browse Code »

    Some hardware needs to do break handling itself and may have partial
    support only. Make break_ctl return an error code. Add a tty driver flag
    so you can indicate driver hardware side break support.

    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Alan Cox
     

21 Jul, 2008

4 commits

  • db6d8c7a4   Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (1232 commits)
    iucv: Fix bad merging.
    net_sched: Add size table for qdiscs
    net_sched: Add accessor function for packet length for qdiscs
    net_sched: Add qdisc_enqueue wrapper
    highmem: Export totalhigh_pages.
    ipv6 mcast: Omit redundant address family checks in ip6_mc_source().
    net: Use standard structures for generic socket address structures.
    ipv6 netns: Make several "global" sysctl variables namespace aware.
    netns: Use net_eq() to compare net-namespaces for optimization.
    ipv6: remove unused macros from net/ipv6.h
    ipv6: remove unused parameter from ip6_ra_control
    tcp: fix kernel panic with listening_get_next
    tcp: Remove redundant checks when setting eff_sacks
    tcp: options clean up
    tcp: Fix MD5 signatures for non-linear skbs
    sctp: Update sctp global memory limit allocations.
    sctp: remove unnecessary byteshifting, calculate directly in big-endian
    sctp: Allow only 1 listening socket with SO_REUSEADDR
    sctp: Do not leak memory on multiple listen() calls
    sctp: Support ipv6only AF_INET6 sockets.
    ...

    Linus Torvalds
     
  • 44b7d1b37   tty: add more tty_port fields ... Browse Code »

    Move more bits into the tty_port structure

    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Alan Cox
     
  • 8fb06c771   synclink: use tty_port ... Browse Code »

    Switch the synclink ports to use the new tty_port structure

    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Alan Cox
     
  • a352def21   tty: Ldisc revamp ... Browse Code »

    Move the line disciplines towards a conventional ->ops arrangement. For
    the moment the actual 'tty_ldisc' struct in the tty is kept as part of
    the tty struct but this can then be changed if it turns out that when it
    all settles down we want to refcount ldiscs separately to the tty.

    Pull the ldisc code out of /proc and put it with our ldisc code.

    Signed-off-by: Alan Cox
    Signed-off-by: Linus Torvalds

    Alan Cox
     

04 Jul, 2008

1 commit

13 May, 2008

1 commit

30 Apr, 2008

4 commits

  • 24cb23352   char serial: switch drivers to ioremap_nocache ... Browse Code »

    Simple search/replace except for synclink.c where I noticed a real bug and
    fixed it too. It was doing NULL + offset, then checking for NULL if the remap
    failed.

    Signed-off-by: Alan Cox
    Cc: Paul Fulghum
    Acked-by: Jiri Slaby
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     
  • 55da77899   synclink series: switch to int put_char method ... Browse Code »

    Signed-off-by: Alan Cox
    Cc: Paul Fulghum
    Cc: Jiri Slaby
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     
  • 978e595f8   tty/serial: lay the foundations for the next set of reworks ... Browse Code »

    - Stop drivers calling their own flush method indirectly, it obfuscates code
    and it will change soon anyway

    - A few more lock_kernel paths temporarily needed in some driver internal
    waiting code

    - Remove private put_char method that does a write call for one char - we
    have that anyway

    - Most but not yet all of the termios copy under lock fixing (some has other
    dependencies to follow)

    - Note a few locking bugs in drivers found in the process

    - Kill remaining [ab]users of TIOCG/SSOFTCAR in the driver, these must go to
    fix the termios locking

    Signed-off-by: Alan Cox
    Cc: Jiri Slaby
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     
  • 1f8cabb70   synclink series: Prepare for BKL pushdown ... Browse Code »

    As these are quite complex I've simply pushed the BKL down into the ioctl
    handler not tried to do anything neater.

    Signed-off-by: Alan Cox
    Cc: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     

28 Apr, 2008

1 commit

  • 0fab6de09   synclink drivers bool conversion ... Browse Code »

    Remove more TRUE/FALSE defines and uses
    Remove == TRUE tests
    Convert BOOLEAN to bool
    Convert int to bool where appropriate

    Signed-off-by: Joe Perches
    Acked-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     

21 Apr, 2008

1 commit

07 Feb, 2008

2 commits

15 Oct, 2007

1 commit

23 Aug, 2007

1 commit

01 Aug, 2007

1 commit

  • bb029c67e   synclink_gt: fix transmit DMA stall ... Browse Code »

    Fix transmit DMA stall when write() called in window after previous
    transmit DMA completes but before previous serial transmission completes.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     

20 Jul, 2007

1 commit

  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

17 Jul, 2007

1 commit

11 May, 2007

1 commit

09 May, 2007

1 commit

13 Feb, 2007

1 commit

  • 40565f196   [PATCH] Char: timers cleanup ... Browse Code »

    - Use timer macros to set function and data members and to modify
    expiration time.
    - Use DEFINE_TIMER for global timers and do not init them at run-time in
    these cases.
    - del_timer_sync is common in most cases -- we want to wait for timer
    function if it's still running.

    Signed-off-by: Jiri Slaby
    Cc: Dave Airlie
    Cc: David Woodhouse
    Cc: Dominik Brodowski
    Cc: Alessandro Zummo
    Cc: Paul Fulghum
    Cc: Kylene Jo Hall
    Cc: Wim Van Sebroeck
    Acked-by: Dmitry Torokhov (Input bits)
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jiri Slaby
     

12 Feb, 2007

1 commit

  • b963a8441   [PATCH] Char: tty_wakeup cleanup ... Browse Code »

    tty_wakeup cleanup

    - remove wake_up_interruptible(&tty->write_wait) surrounding
    tty_wakup(tty);
    - substitute tty->ldisc.write_wakeup(tty) + wake_up() by tty_wakeup(tty);

    Signed-off-by: Jiri Slaby
    Cc: Alan Cox
    Acked-by: Tilman Schmidt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jiri Slaby
     

09 Dec, 2006

1 commit

  • 606d099cd   [PATCH] tty: switch to ktermios ... Browse Code »

    This is the grungy swap all the occurrences in the right places patch that
    goes with the updates. At this point we have the same functionality as
    before (except that sgttyb() returns speeds not zero) and are ready to
    begin turning new stuff on providing nobody reports lots of bugs

    If you are a tty driver author converting an out of tree driver the only
    impact should be termios->ktermios name changes for the speed/property
    setting functions from your upper layers.

    If you are implementing your own TCGETS function before then your driver
    was broken already and its about to get a whole lot more painful for you so
    please fix it 8)

    Also fill in c_ispeed/ospeed on init for most devices, although the current
    code will do this for you anyway but I'd like eventually to lose that extra
    paranoia

    [akpm@osdl.org: bluetooth fix]
    [mp3@de.ibm.com: sclp fix]
    [mp3@de.ibm.com: warning fix for tty3270]
    [hugh@veritas.com: fix tty_ioctl powerpc build]
    [jdike@addtoit.com: uml: fix ->set_termios declaration]
    Signed-off-by: Alan Cox
    Signed-off-by: Martin Peschke
    Acked-by: Peter Oberparleiter
    Cc: Cornelia Huck
    Signed-off-by: Hugh Dickins
    Signed-off-by: Jeff Dike
    Cc: Paolo 'Blaisorblade' Giarrusso
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     

08 Dec, 2006

2 commits

  • af69c7f92   [PATCH] generic HDLC synclink config mismatch fix ... Browse Code »

    Fix compile errors on mismatch between generic HDLC and synclink drivers.

    Notes:

    generic HDLC support for synclink drivers is *optional* so you can't just
    use depend on in Kconfig

    This solution is deemed the best after 7 months of review and criticism by
    many developers including AKPM. Read the threads on LKML before posting
    about this solution.

    Signed-off-by: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Fulghum
     
  • 36499dc2b   [PATCH] synclink_gt: fix init error handling ... Browse Code »

    Initialization synclink_gt forgot to unregister pci driver on error path.

    Signed-off-by: Akinobu Mita
    Cc: Paul Fulghum
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     

22 Nov, 2006

1 commit

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

02 Oct, 2006

1 commit

  • b68e31d0e   [PATCH] const struct tty_operations ... Browse Code »

    As part of an SMP cleanliness pass over UML, I consted a bunch of
    structures in order to not have to document their locking. One of these
    structures was a struct tty_operations. In order to const it in UML
    without introducing compiler complaints, the declaration of
    tty_set_operations needs to be changed, and then all of its callers need to
    be fixed.

    This patch declares all struct tty_operations in the tree as const. In all
    cases, they are static and used only as input to tty_set_operations. As an
    extra check, I ran an i386 allyesconfig build which produced no extra
    warnings.

    53 drivers are affected. I checked the history of a bunch of them, and in
    most cases, there have been only a handful of maintenance changes in the
    last six months. serial_core.c was the busiest one that I looked at.

    Signed-off-by: Jeff Dike
    Acked-by: Alan Cox
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jeff Dike
     

01 Oct, 2006

1 commit