Eric Lee / smarc-fsl-linux-kernel

29 Nov, 2011

1 commit

14 Oct, 2011

1 commit

03 Aug, 2011

1 commit

  • df013ffb8   Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG ... Browse Code »

    cmpxchg() is widely used by lockless code, including NMI-safe lockless
    code. But on some architectures, the cmpxchg() implementation is not
    NMI-safe, on these architectures the lockless code may need a
    spin_trylock_irqsave() based implementation.

    This patch adds a Kconfig option: ARCH_HAVE_NMI_SAFE_CMPXCHG, so that
    NMI-safe lockless code can depend on it or provide different
    implementation according to it.

    On many architectures, cmpxchg is only NMI-safe for several specific
    operand sizes. So, ARCH_HAVE_NMI_SAFE_CMPXCHG define in this patch
    only guarantees cmpxchg is NMI-safe for sizeof(unsigned long).

    Signed-off-by: Huang Ying
    Acked-by: Mike Frysinger
    Acked-by: Paul Mundt
    Acked-by: Hans-Christian Egtvedt
    Acked-by: Benjamin Herrenschmidt
    Acked-by: Chris Metcalf
    Acked-by: Richard Henderson
    CC: Mikael Starvik
    Acked-by: David Howells
    CC: Yoshinori Sato
    CC: Tony Luck
    CC: Hirokazu Takata
    CC: Geert Uytterhoeven
    CC: Michal Simek
    Acked-by: Ralf Baechle
    CC: Kyle McMartin
    CC: Martin Schwidefsky
    CC: Chen Liqin
    CC: "David S. Miller"
    CC: Ingo Molnar
    CC: Chris Zankel
    Signed-off-by: Len Brown

    Huang Ying
     

27 May, 2011

1 commit

  • 63e424c84   arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT} ... Browse Code »

    By the previous style change, CONFIG_GENERIC_FIND_NEXT_BIT,
    CONFIG_GENERIC_FIND_BIT_LE, and CONFIG_GENERIC_FIND_LAST_BIT are not used
    to test for existence of find bitops anymore.

    Signed-off-by: Akinobu Mita
    Acked-by: Greg Ungerer
    Cc: Arnd Bergmann
    Cc: Russell King
    Cc: Martin Schwidefsky
    Cc: Heiko Carstens
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     

30 Mar, 2011

1 commit

24 Mar, 2011

1 commit

  • 0664996b7   bitops: introduce CONFIG_GENERIC_FIND_BIT_LE ... Browse Code »

    This introduces CONFIG_GENERIC_FIND_BIT_LE to tell whether to use generic
    implementation of find_*_bit_le() in lib/find_next_bit.c or not.

    For now we select CONFIG_GENERIC_FIND_BIT_LE for all architectures which
    enable CONFIG_GENERIC_FIND_NEXT_BIT.

    But m68knommu wants to define own faster find_next_zero_bit_le() and
    continues using generic find_next_{,zero_}bit().
    (CONFIG_GENERIC_FIND_NEXT_BIT and !CONFIG_GENERIC_FIND_BIT_LE)

    Signed-off-by: Akinobu Mita
    Cc: Greg Ungerer
    Cc: Arnd Bergmann
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     

11 Feb, 2011

1 commit

  • 4c4231ea2   [PARISC] Convert to new irq_chip functions ... Browse Code »

    Convert all the parisc driver interrupt handlers (dino, eisa, gsc,
    iosapic and superio) as well as the cpu interrupts. Prepare
    show_interrupts for GENERIC_HARDIRQS_NO_DEPRECATED and finally selects
    that Kconfig option

    [jejb: compile and testing fixes]
    Signed-off-by: Thomas Gleixner
    Signed-off-by: James Bottomley

    Thomas Gleixner
     

21 Jan, 2011

2 commits

  • 72e73af1f   parisc: Use generic irq Kconfig ... Browse Code »

    No functional change.

    Signed-off-by: Thomas Gleixner
    Cc: Kyle McMartin
    Acked-by: James Bottomley

    Thomas Gleixner
     
  • 1c77ff22f   genirq: Remove __do_IRQ ... Browse Code »

    All architectures are finally converted. Remove the cruft.

    Signed-off-by: Thomas Gleixner
    Cc: Richard Henderson
    Cc: Mike Frysinger
    Cc: David Howells
    Cc: Tony Luck
    Cc: Greg Ungerer
    Cc: Michal Simek
    Acked-by: David Howells
    Cc: Kyle McMartin
    Acked-by: Benjamin Herrenschmidt
    Cc: Chen Liqin
    Cc: "David S. Miller"
    Cc: Chris Metcalf
    Cc: Jeff Dike

    Thomas Gleixner
     

29 Oct, 2010

2 commits

  • 51399a391   Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 ... Browse Code »

    * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
    kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
    README: cite nconfig
    Revert "kconfig: Temporarily disable dependency warnings"
    kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
    kconfig: Fix realloc usage()
    kconfig: Propagate const
    kconfig: Don't go out from read config loop when you read new symbol
    kconfig: fix menuconfig on debian lenny
    kbuild: migrate all arch to the kconfig mainmenu upgrade
    kconfig: expand file names
    kconfig: use the file's name of sourced file
    kconfig: constify file name
    kconfig: don't emit warning upon rootmenu's prompt redefinition
    kconfig: replace KERNELVERSION usage by the mainmenu's prompt
    kconfig: delay gconf window initialization
    kconfig: expand by default the rootmenu's prompt
    kconfig: add a symbol string expansion helper
    kconfig: regen parser
    kconfig: implement the `mainmenu' directive
    kconfig: allow PACKAGE to be defined on the compiler's command-line
    ...

    Fix up trivial conflict in arch/mn10300/Kconfig

    Linus Torvalds
     
  • e43042665   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 ... Browse Code »

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
    parisc: add tty driver to PDC console
    drivers/parisc/iosapic.c: Remove unnecessary kzalloc cast
    parisc: remove homegrown L1_CACHE_ALIGN macro
    arch/parisc: Removing undead ifdef CONFIG_PA20
    parisc: unwind - optimise linked-list searches for modules
    parisc: change to new flag variable
    drivers/char/agp/parisc-agp.c: eliminate memory leak
    parisc: kill __do_IRQ
    parisc: convert eisa interrupts to flow handlers
    parisc: convert gsc and dino pci interrupts to flow handlers
    parisc: convert suckyio interrupts to flow handlers
    parisc: convert iosapic interrupts to proper flow handlers
    parisc: convert cpu interrupts to proper flow handlers
    parisc: lay groundwork for killing __do_IRQ
    parisc: add prlimit64 syscall
    parisc: squelch warning when using dev_get_stats

    Linus Torvalds
     

19 Oct, 2010

1 commit

  • e360adbe2   irq_work: Add generic hardirq context callbacks ... Browse Code »
    2

    Provide a mechanism that allows running code in IRQ context. It is
    most useful for NMI code that needs to interact with the rest of the
    system -- like wakeup a task to drain buffers.

    Perf currently has such a mechanism, so extract that and provide it as
    a generic feature, independent of perf so that others may also
    benefit.

    The IRQ context callback is generated through self-IPIs where
    possible, or on architectures like powerpc the decrementer (the
    built-in timer facility) is set to generate an interrupt immediately.

    Architectures that don't have anything like this get to do with a
    callback from the timer tick. These architectures can call
    irq_work_run() at the tail of any IRQ handlers that might enqueue such
    work (like the perf IRQ handler) to avoid undue latencies in
    processing the work.

    Signed-off-by: Peter Zijlstra
    Acked-by: Kyle McMartin
    Acked-by: Martin Schwidefsky
    [ various fixes ]
    Signed-off-by: Huang Ying
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Peter Zijlstra
     

14 Oct, 2010

1 commit

12 Oct, 2010

1 commit

20 Sep, 2010

1 commit

27 Jul, 2010

1 commit

  • 592913ecb   time: Kill off CONFIG_GENERIC_TIME ... Browse Code »

    Now that all arches have been converted over to use generic time via
    clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME
    config option and simplify the generic code.

    Signed-off-by: John Stultz
    LKML-Reference:
    Signed-off-by: Thomas Gleixner

    John Stultz
     

28 May, 2010

1 commit

  • f6ae31c23   parisc: use asm-generic/scatterlist.h ... Browse Code »

    parisc uses iova and iova_length in scatterlist structure instead of
    dma_address and dma_length. However, the accessor are used so we can
    convert parisc to use asm-generic/scatterlist.h easily.

    Signed-off-by: FUJITA Tomonori
    Cc: Kyle McMartin
    Cc: Helge Deller
    Cc: James E.J. Bottomley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    FUJITA Tomonori
     

13 Mar, 2010

1 commit

23 Feb, 2010

1 commit

  • 15cbf627a   Revert "parisc: HAVE_ARCH_TRACEHOOK" ... Browse Code »

    This reverts commit 81bf550d9cdfe0325eb1504b06c9f6511b442c1a.

    HAVE_ARCH_TRACEHOOK requires defining the user_regset interfaces,
    including task_user_regset_view(). parisc doesn't do that yet,
    so don't lie about it.

    Signed-off-by: Roland McGrath

    Roland McGrath
     

28 Sep, 2009

1 commit

21 Sep, 2009

1 commit

  • cdd6c482c   perf: Do the big rename: Performance Counters -> Performance Events ... Browse Code »

    Bye-bye Performance Counters, welcome Performance Events!

    In the past few months the perfcounters subsystem has grown out its
    initial role of counting hardware events, and has become (and is
    becoming) a much broader generic event enumeration, reporting, logging,
    monitoring, analysis facility.

    Naming its core object 'perf_counter' and naming the subsystem
    'perfcounters' has become more and more of a misnomer. With pending
    code like hw-breakpoints support the 'counter' name is less and
    less appropriate.

    All in one, we've decided to rename the subsystem to 'performance
    events' and to propagate this rename through all fields, variables
    and API names. (in an ABI compatible fashion)

    The word 'event' is also a bit shorter than 'counter' - which makes
    it slightly more convenient to write/handle as well.

    Thanks goes to Stephane Eranian who first observed this misnomer and
    suggested a rename.

    User-space tooling and ABI compatibility is not affected - this patch
    should be function-invariant. (Also, defconfigs were not touched to
    keep the size down.)

    This patch has been generated via the following script:

    FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')

    sed -i \
    -e 's/PERF_EVENT_/PERF_RECORD_/g' \
    -e 's/PERF_COUNTER/PERF_EVENT/g' \
    -e 's/perf_counter/perf_event/g' \
    -e 's/nb_counters/nb_events/g' \
    -e 's/swcounter/swevent/g' \
    -e 's/tpcounter_event/tp_event/g' \
    $FILES

    for N in $(find . -name perf_counter.[ch]); do
    M=$(echo $N | sed 's/perf_counter/perf_event/g')
    mv $N $M
    done

    FILES=$(find . -name perf_event.*)

    sed -i \
    -e 's/COUNTER_MASK/REG_MASK/g' \
    -e 's/COUNTER/EVENT/g' \
    -e 's/\/event_id/g' \
    -e 's/counter/event/g' \
    -e 's/Counter/Event/g' \
    $FILES

    ... to keep it as correct as possible. This script can also be
    used by anyone who has pending perfcounters patches - it converts
    a Linux kernel tree over to the new naming. We tried to time this
    change to the point in time where the amount of pending patches
    is the smallest: the end of the merge window.

    Namespace clashes were fixed up in a preparatory patch - and some
    stylistic fallout will be fixed up in a subsequent patch.

    ( NOTE: 'counters' are still the proper terminology when we deal
    with hardware registers - and these sed scripts are a bit
    over-eager in renaming them. I've undone some of that, but
    in case there's something left where 'counter' would be
    better than 'event' we can undo that on an individual basis
    instead of touching an otherwise nicely automated patch. )

    Suggested-by: Stephane Eranian
    Acked-by: Peter Zijlstra
    Acked-by: Paul Mackerras
    Reviewed-by: Arjan van de Ven
    Cc: Mike Galbraith
    Cc: Arnaldo Carvalho de Melo
    Cc: Frederic Weisbecker
    Cc: Steven Rostedt
    Cc: Benjamin Herrenschmidt
    Cc: David Howells
    Cc: Kyle McMartin
    Cc: Martin Schwidefsky
    Cc: "David S. Miller"
    Cc: Thomas Gleixner
    Cc: "H. Peter Anvin"
    Cc:
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Ingo Molnar
     

03 Jul, 2009

2 commits

04 Apr, 2009

1 commit

  • 3ba113d14   Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (23 commits)
    parisc: move dereference_function_descriptor to process.c
    parisc: Move kernel Elf_Fdesc define to
    parisc: fix build when ARCH_HAS_KMAP
    parisc: fix "make tar-pkg"
    parisc: drivers: fix warnings
    parisc: select BUG always
    parisc: asm/pdc.h should include asm/page.h
    parisc: led: remove proc_dir_entry::owner
    parisc: fix macro expansion in atomic.h
    parisc: iosapic: fix build breakage
    parisc: oops_enter()/oops_exit() in die()
    parisc: document light weight syscall ABI
    parisc: blink all or loadavg LEDs on oops
    parisc: add ftrace (function and graph tracer) functionality
    parisc: simplify sys_clone()
    parisc: add LATENCYTOP_SUPPORT and CONFIG_STACKTRACE_SUPPORT
    parisc: allow to build with 16k default kernel page size
    parisc: expose 32/64-bit capabilities in cpuinfo
    parisc: use constants instead of numbers in assembly
    parisc: fix usage of 32bit PTE page table entries on 32bit kernels
    ...

    Linus Torvalds
     

02 Apr, 2009

2 commits

  • 3afe6d046   parisc: rtc: Rename rtc-parisc to rtc-generic ... Browse Code »

    The rtc-parisc driver is not PA-RISC specific at all, as it uses the existing
    (but deprecated) generic RTC infrastructure ([gs]et_rtc_time()).
    Rename the driver from rtc-parisc to rtc-generic.

    Signed-off-by: Geert Uytterhoeven
    Acked-by: Alessandro Zummo
    Signed-off-by: Kyle McMartin

    Geert Uytterhoeven
     
  • f67d3c83f   parisc: select BUG always ... Browse Code »

    On Wed, Mar 25, 2009 at 05:02:21PM +0300, Alexander Beregalov wrote:
    > arch/parisc/kernel/traps.c:321: error: 'PARISC_BUG_BREAK_INSN'
    > undeclared (first use in this function)
    >
    > # CONFIG_BUG is not set
    > CONFIG_EMBEDDED=y
    >
    > Is it a reasonable config?

    imho, no.

    Signed-off-by: Kyle McMartin

    Kyle McMartin
     

31 Mar, 2009

2 commits

13 Dec, 2008

1 commit

  • 98a79d6a5   cpumask: centralize cpu_online_map and cpu_possible_map ... Browse Code »

    Impact: cleanup

    Each SMP arch defines these themselves. Move them to a central
    location.

    Twists:
    1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
    CONFIG_INIT_ALL_POSSIBLE for this rather than break them.

    2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
    Those archs simply have phys_cpu_present_map replaced everywhere.

    3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
    so I just manipulate them both in sync.

    4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
    declarations.

    Signed-off-by: Rusty Russell
    Reviewed-by: Grant Grundler
    Tested-by: Tony Luck
    Acked-by: Ingo Molnar
    Cc: Mike Travis
    Cc: ink@jurassic.park.msu.ru
    Cc: rmk@arm.linux.org.uk
    Cc: starvik@axis.com
    Cc: tony.luck@intel.com
    Cc: takata@linux-m32r.org
    Cc: ralf@linux-mips.org
    Cc: grundler@parisc-linux.org
    Cc: paulus@samba.org
    Cc: schwidefsky@de.ibm.com
    Cc: lethal@linux-sh.org
    Cc: wli@holomorphy.com
    Cc: davem@davemloft.net
    Cc: jdike@addtoit.com
    Cc: mingo@redhat.com

    Rusty Russell
     

21 Oct, 2008

1 commit

  • e3d2f927f   Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
    parisc: convert to generic compat_sys_ptrace
    parisc: add rtc platform driver
    parisc: initialize unwinder much earlier
    parisc: add new syscalls
    parisc: hijack jump to start_kernel
    parisc: add pdc_coproc_cfg_unlocked and set_firmware_width_unlocked
    parisc: move include/asm-parisc to arch/parisc/include/asm
    parisc: move pdc_result to real2.S
    parisc: unify CCIO_COLLECT_STATS implementation
    parisc: add arch/parisc/kernel/.gitignore
    parisc: ropes.h - fix ->
    parisc: parisc-agp - fix ->

    Resolve remove/rename conflict: include/asm-parisc/a.out.h is no longer
    relevant.

    Linus Torvalds
     

20 Oct, 2008

1 commit

  • dc52ddc0e   container freezer: implement freezer cgroup subsystem ... Browse Code »

    This patch implements a new freezer subsystem in the control groups
    framework. It provides a way to stop and resume execution of all tasks in
    a cgroup by writing in the cgroup filesystem.

    The freezer subsystem in the container filesystem defines a file named
    freezer.state. Writing "FROZEN" to the state file will freeze all tasks
    in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in
    the cgroup. Reading will return the current state.

    * Examples of usage :

    # mkdir /containers/freezer
    # mount -t cgroup -ofreezer freezer /containers
    # mkdir /containers/0
    # echo $some_pid > /containers/0/tasks

    to get status of the freezer subsystem :

    # cat /containers/0/freezer.state
    RUNNING

    to freeze all tasks in the container :

    # echo FROZEN > /containers/0/freezer.state
    # cat /containers/0/freezer.state
    FREEZING
    # cat /containers/0/freezer.state
    FROZEN

    to unfreeze all tasks in the container :

    # echo RUNNING > /containers/0/freezer.state
    # cat /containers/0/freezer.state
    RUNNING

    This is the basic mechanism which should do the right thing for user space
    task in a simple scenario.

    It's important to note that freezing can be incomplete. In that case we
    return EBUSY. This means that some tasks in the cgroup are busy doing
    something that prevents us from completely freezing the cgroup at this
    time. After EBUSY, the cgroup will remain partially frozen -- reflected
    by freezer.state reporting "FREEZING" when read. The state will remain
    "FREEZING" until one of these things happens:

    1) Userspace cancels the freezing operation by writing "RUNNING" to
    the freezer.state file
    2) Userspace retries the freezing operation by writing "FROZEN" to
    the freezer.state file (writing "FREEZING" is not legal
    and returns EIO)
    3) The tasks that blocked the cgroup from entering the "FROZEN"
    state disappear from the cgroup's set of tasks.

    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: export thaw_process]
    Signed-off-by: Cedric Le Goater
    Signed-off-by: Matt Helsley
    Acked-by: Serge E. Hallyn
    Tested-by: Matt Helsley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Helsley
     

11 Oct, 2008

1 commit

07 Sep, 2008

1 commit

26 Jun, 2008

1 commit

09 Feb, 2008

2 commits

  • ec7748b59   ide: introduce HAVE_IDE ... Browse Code »

    To allow flexible configuration of IDE introduce HAVE_IDE.
    All archs except arm, um and s390 unconditionally select it.
    For arm the actual configuration determine if IDE is supported.

    This is a step towards introducing drivers/Kconfig for arm.

    Signed-off-by: Sam Ravnborg
    Acked-by: Russell King - ARM Linux
    Acked-by: Bartlomiej Zolnierkiewicz

    Sam Ravnborg
     
  • b0b933c08   aout: mark arches that support A.OUT format ... Browse Code »

    Mark arches that support A.OUT format by including the following in their
    master Kconfig files:

    config ARCH_SUPPORTS_AOUT
    def_bool y

    This should also be set if the arch provides compatibility A.OUT support for
    an older arch, for instance x86_64 for i386 or sparc64 for sparc.

    I've guessed at which arches don't, based on comments in the code, however I'm
    sure that some of the ones I've marked as 'yes' actually should be 'no'.

    Signed-off-by: David Howells
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

04 Feb, 2008

1 commit

  • f5bb3a5e9   Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (79 commits)
    Jesper Juhl is the new trivial patches maintainer
    Documentation: mention email-clients.txt in SubmittingPatches
    fs/binfmt_elf.c: spello fix
    do_invalidatepage() comment typo fix
    Documentation/filesystems/porting fixes
    typo fixes in net/core/net_namespace.c
    typo fix in net/rfkill/rfkill.c
    typo fixes in net/sctp/sm_statefuns.c
    lib/: Spelling fixes
    kernel/: Spelling fixes
    include/scsi/: Spelling fixes
    include/linux/: Spelling fixes
    include/asm-m68knommu/: Spelling fixes
    include/asm-frv/: Spelling fixes
    fs/: Spelling fixes
    drivers/watchdog/: Spelling fixes
    drivers/video/: Spelling fixes
    drivers/ssb/: Spelling fixes
    drivers/serial/: Spelling fixes
    drivers/scsi/: Spelling fixes
    ...

    Linus Torvalds
     

03 Feb, 2008

3 commits

  • 03502faa2   remove Documentation/smp.txt ... Browse Code »

    After seeing the filename I'd have expected something about the
    implementation of SMP in the Linux kernel - not some notes on kernel
    configuration and building trivialities noone would search at this
    place.

    Signed-off-by: Adrian Bunk
    Acked-by: Alan Cox

    Adrian Bunk
     
  • 125e56458   Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig ... Browse Code »

    Move the instrumentation Kconfig to

    arch/Kconfig for architecture dependent options
    - oprofile
    - kprobes

    and

    init/Kconfig for architecture independent options
    - profiling
    - markers

    Remove the "Instrumentation Support" menu. Everything moves to "General setup".
    Delete the kernel/Kconfig.instrumentation file.

    Signed-off-by: Mathieu Desnoyers
    Cc: Linus Torvalds
    Cc:
    Signed-off-by: Sam Ravnborg

    Mathieu Desnoyers
     
  • 42d4b839c   Add HAVE_OPROFILE ... Browse Code »

    Linus:
    On the per-architecture side, I do think it would be better to *not* have
    internal architecture knowledge in a generic file, and as such a line like

    depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32

    really shouldn't exist in a file like kernel/Kconfig.instrumentation.

    It would be much better to do

    depends on ARCH_SUPPORTS_KPROBES

    in that generic file, and then architectures that do support it would just
    have a

    bool ARCH_SUPPORTS_KPROBES
    default y

    in *their* architecture files. That would seem to be much more logical,
    and is readable both for arch maintainers *and* for people who have no
    clue - and don't care - about which architecture is supposed to support
    which interface...

    Changelog:

    Actually, I know I gave this as the magic incantation, but now that I see
    it, I realize that I should have told you to just use

    config ARCH_SUPPORTS_KPROBES
    def_bool y

    instead, which is a bit denser.

    We seem to use both kinds of syntax for these things, but this is really
    what "def_bool" is there for...

    Changelog :

    - Moving to HAVE_*.
    - Add AVR32 oprofile.

    Signed-off-by: Mathieu Desnoyers
    Cc: Andrew Morton
    Cc: Haavard Skinnemoen
    Cc: David Howells
    Cc: Jeff Dike
    Cc: Ananth N Mavinakayanahalli
    Signed-off-by: Sam Ravnborg

    Mathieu Desnoyers