Eric Lee / smarc-fsl-linux-kernel

14 Dec, 2006

2 commits

  • 5cbded585   [PATCH] getting rid of all casts of k[cmz]alloc() calls ... Browse Code »

    Run this:

    #!/bin/sh
    for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
    echo "De-casting $f..."
    perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
    done

    And then go through and reinstate those cases where code is casting pointers
    to non-pointers.

    And then drop a few hunks which conflicted with outstanding work.

    Cc: Russell King , Ian Molton
    Cc: Mikael Starvik
    Cc: Yoshinori Sato
    Cc: Roman Zippel
    Cc: Geert Uytterhoeven
    Cc: Ralf Baechle
    Cc: Paul Mackerras
    Cc: Kyle McMartin
    Cc: Benjamin Herrenschmidt
    Cc: Martin Schwidefsky
    Cc: "David S. Miller"
    Cc: Jeff Dike
    Cc: Greg KH
    Cc: Jens Axboe
    Cc: Paul Fulghum
    Cc: Alan Cox
    Cc: Karsten Keil
    Cc: Mauro Carvalho Chehab
    Cc: Jeff Garzik
    Cc: James Bottomley
    Cc: Ian Kent
    Cc: Steven French
    Cc: David Woodhouse
    Cc: Neil Brown
    Cc: Jaroslav Kysela
    Cc: Takashi Iwai
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robert P. J. Day
     
  • cd8612808   [PATCH] Fix numerous kcalloc() calls, convert to kzalloc() ... Browse Code »

    All kcalloc() calls of the form "kcalloc(1,...)" are converted to the
    equivalent kzalloc() calls, and a few kcalloc() calls with the incorrect
    ordering of the first two arguments are fixed.

    Signed-off-by: Robert P. J. Day
    Cc: Jeff Garzik
    Cc: Alan Cox
    Cc: Dominik Brodowski
    Cc: Adam Belay
    Cc: James Bottomley
    Cc: Greg KH
    Cc: Mark Fasheh
    Cc: Trond Myklebust
    Cc: Neil Brown
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robert P. J. Day
     

09 Dec, 2006

1 commit

08 Dec, 2006

2 commits

06 Dec, 2006

1 commit

05 Dec, 2006

1 commit

02 Dec, 2006

16 commits

30 Nov, 2006

1 commit

22 Nov, 2006

1 commit

17 Nov, 2006

1 commit

18 Oct, 2006

4 commits

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
     

04 Oct, 2006

1 commit

29 Sep, 2006

1 commit

28 Sep, 2006

7 commits

  • 38e2bfc94   USB: Dealias -110 code (more complete) ... Browse Code »

    The purpose of this patch is to split off the case when a device does
    not reply on the lower level (which is reported by HC hardware), and
    a case when the device accepted the request, but does not reply at
    upper level. This redefinition allows to diagnose issues easier,
    without asking the user if the -110 happened "immediately".

    The usbmon splits such cases already thanks to its timestamp, but
    it's not always available.

    I adjusted all drivers which I found affected (by searching for "urb").
    Out of tree drivers may suffer a little bit, but I do not expect much
    breakage. At worst they may print a few messages.

    Signed-off-by: Pete Zaitcev
    Signed-off-by: Greg Kroah-Hartman

    Pete Zaitcev
     
  • a5c66e4b2   USB: ftdi-elan: client driver for ELAN Uxxx adapters ... Browse Code »

    This "ftdi-elan" module is one half of the "driver" for
    ELAN's Uxxx series adapters which are USB to PCMCIA CardBus
    adapters. Currently only the U132 adapter is available and
    it's module is called "u132-hcd".

    When the USB hot plug subsystem detects a Uxxx series adapter
    it should load this module.

    Upon a successful device probe() the jtag device file interface
    is created and the status workqueue started up.

    The jtag device file interface exists for the purpose of
    updating the firmware in the Uxxx series adapter, but as
    yet it had never been used.

    The status workqueue initializes the Uxxx and then sits there
    polling the Uxxx until a supported PCMCIA CardBus device is
    detected it will start the command and respond workqueues
    and then load the module that handles the device. This will
    initially be only the u132-hcd module. The status workqueue
    then just polls the Uxxx looking for card ejects.

    The command and respond workqueues implement a command
    sequencer for communicating with the firmware on the other
    side of the FTDI chip in the Uxxx. This "ftdi-elan" module
    exports some functions to interface with the sequencer.

    Note that this module is a USB client driver.

    Note that the "u132-hcd" module is a (cut-down OHCI)
    host controller.

    Thus we have a topology with the parent of a host controller
    being a USB client! This really stresses the USB subsystem
    semaphore/mutex handling in the module removal.

    Signed-off-by: Tony Olech
    Signed-off-by: Greg Kroah-Hartman

    Tony Olech
     
  • 03270634e   USB: Add ADU support for Ontrak ADU devices ... Browse Code »

    This patch adds support for Ontrak ADU USB devices.

    Fixed for printk issues by Randy Dunlap

    Signed-off-by: Steven Haigh
    Signed-off-by: Greg Kroah-Hartman

    Steven Haigh
     
  • 4d42e1bb9   USB: fix __must_check warnings in drivers/usb/misc/ ... Browse Code »

    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     
  • 5482687b8   USB: ldusb: Use usb_endpoint_* functions. ... Browse Code »

    Signed-off-by: Luiz Fernando N. Capitulino
    Signed-off-by: Greg Kroah-Hartman

    Luiz Fernando N. Capitulino
     
  • b0b660b8d   USB: usblcd: Use usb_endpoint_* functions. ... Browse Code »

    Signed-off-by: Luiz Fernando N. Capitulino
    Signed-off-by: Greg Kroah-Hartman

    Luiz Fernando N. Capitulino
     
  • 066202dd4   USB: Make file operations structs in drivers/usb const. ... Browse Code »

    Making structs const prevents accidental bugs and with the proper debug
    options they're protected against corruption.

    Signed-off-by: Luiz Fernando N. Capitulino
    Signed-off-by: Greg Kroah-Hartman

    Luiz Fernando N. Capitulino