Eric Lee / linux-smarc-t335x-v3.2

18 Aug, 2010

1 commit

  • d7627467b   Make do_execve() take a const filename pointer ... Browse Code »

    Make do_execve() take a const filename pointer so that kernel_execve() compiles
    correctly on ARM:

    arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type

    This also requires the argv and envp arguments to be consted twice, once for
    the pointer array and once for the strings the array points to. This is
    because do_execve() passes a pointer to the filename (now const) to
    copy_strings_kernel(). A simpler alternative would be to cast the filename
    pointer in do_execve() when it's passed to copy_strings_kernel().

    do_execve() may not change any of the strings it is passed as part of the argv
    or envp lists as they are some of them in .rodata, so marking these strings as
    const should be fine.

    Further kernel_execve() and sys_execve() need to be changed to match.

    This has been test built on x86_64, frv, arm and mips.

    Signed-off-by: David Howells
    Tested-by: Ralf Baechle
    Acked-by: Russell King
    Signed-off-by: Linus Torvalds

    David Howells
     

15 Aug, 2010

2 commits

13 Aug, 2010

1 commit

12 Aug, 2010

1 commit

  • 5272a7534   CRIS: Define io_remap_pfn_range as remap_pfn_range ... Browse Code »

    CRIS don't need any special mapping for io, but didn't define this,
    meaning that all uses of io_remap_pfn_range lead to compile errors.

    This fixes a compile error introduced in CRIS when drivers/mtd/mtdchar.c
    mmap handling was changed in commit dd02b67d5e9e7896891fa27eb5db65f55a290998

    Signed-off-by: Jesper Nilsson

    Jesper Nilsson
     

11 Aug, 2010

5 commits

  • 3b9c6c11f   dma-mapping: remove dma_is_consistent API ... Browse Code »

    Architectures implement dma_is_consistent() in different ways (some
    misinterpret the definition of API in DMA-API.txt). So it hasn't been so
    useful for drivers. We have only one user of the API in tree. Unlikely
    out-of-tree drivers use the API.

    Even if we fix dma_is_consistent() in some architectures, it doesn't look
    useful at all. It was invented long ago for some old systems that can't
    allocate coherent memory at all. It's better to export only APIs that are
    definitely necessary for drivers.

    Let's remove this API.

    Signed-off-by: FUJITA Tomonori
    Cc: James Bottomley
    Reviewed-by: Konrad Rzeszutek Wilk
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    FUJITA Tomonori
     
  • 4565f0170   dma-mapping: unify dma_get_cache_alignment implementations ... Browse Code »

    dma_get_cache_alignment returns the minimum DMA alignment. Architectures
    defines it as ARCH_DMA_MINALIGN (formally ARCH_KMALLOC_MINALIGN). So we
    can unify dma_get_cache_alignment implementations.

    Note that some architectures implement dma_get_cache_alignment wrongly.
    dma_get_cache_alignment() should return the minimum DMA alignment. So
    fully-coherent architectures should return 1. This patch also fixes this
    issue.

    Signed-off-by: FUJITA Tomonori
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    FUJITA Tomonori
     
  • 2f9e825d3   Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block ... Browse Code »

    * 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block: (149 commits)
    block: make sure that REQ_* types are seen even with CONFIG_BLOCK=n
    xen-blkfront: fix missing out label
    blkdev: fix blkdev_issue_zeroout return value
    block: update request stacking methods to support discards
    block: fix missing export of blk_types.h
    writeback: fix bad _bh spinlock nesting
    drbd: revert "delay probes", feature is being re-implemented differently
    drbd: Initialize all members of sync_conf to their defaults [Bugz 315]
    drbd: Disable delay probes for the upcomming release
    writeback: cleanup bdi_register
    writeback: add new tracepoints
    writeback: remove unnecessary init_timer call
    writeback: optimize periodic bdi thread wakeups
    writeback: prevent unnecessary bdi threads wakeups
    writeback: move bdi threads exiting logic to the forker thread
    writeback: restructure bdi forker loop a little
    writeback: move last_active to bdi
    writeback: do not remove bdi from bdi_list
    writeback: simplify bdi code a little
    writeback: do not lose wake-ups in bdi threads
    ...

    Fixed up pretty trivial conflicts in drivers/block/virtio_blk.c and
    drivers/scsi/scsi_error.c as per Jens.

    Linus Torvalds
     
  • 26df6d134   tty: Add EXTPROC support for LINEMODE ... Browse Code »

    This patch is against the 2.6.34 source.

    Paraphrased from the 1989 BSD patch by David Borman @ cray.com:

    These are the changes needed for the kernel to support
    LINEMODE in the server.

    There is a new bit in the termios local flag word, EXTPROC.
    When this bit is set, several aspects of the terminal driver
    are disabled. Input line editing, character echo, and mapping
    of signals are all disabled. This allows the telnetd to turn
    off these functions when in linemode, but still keep track of
    what state the user wants the terminal to be in.

    New ioctl:
    TIOCSIG Generate a signal to processes in the
    current process group of the pty.

    There is a new mode for packet driver, the TIOCPKT_IOCTL bit.
    When packet mode is turned on in the pty, and the EXTPROC bit
    is set, then whenever the state of the pty is changed, the
    next read on the master side of the pty will have the TIOCPKT_IOCTL
    bit set. This allows the process on the server side of the pty
    to know when the state of the terminal has changed; it can then
    issue the appropriate ioctl to retrieve the new state.

    Since the original BSD patches accompanied the source code for telnet
    I've left that reference here, but obviously the feature is useful for
    any remote terminal protocol, including ssh.

    The corresponding feature has existed in the BSD tty driver since 1989.
    For historical reference, a good copy of the relevant files can be found
    here:

    http://anonsvn.mit.edu/viewvc/krb5/trunk/src/appl/telnet/?pathrev=17741

    Signed-off-by: Howard Chu
    Cc: Alan Cox
    Signed-off-by: Greg Kroah-Hartman

    hyc@symas.com
     
  • a3c8ed693   tty: remove remaining Hayes ESP ioctls ... Browse Code »

    As Jeff Dike pointed out, the Hayes ESP driver was removed in commit
    f53a2ade0bb9f2a81f473e6469155172a96b7c38, so these ioctl definitions
    should also be removed. This cleans up the remaining arch-specific
    locations of this ioctl value.

    Thanks to Arnd for pointing these out.

    Cc: Jeff Dike
    Cc: Arnd Bergmann
    Cc: Alan Cox
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

10 Aug, 2010

1 commit

09 Aug, 2010

2 commits

  • f1d23ed82   CRIS: ioctl for getting RS485 information ... Browse Code »

    Add ioctl to CRIS serial driver to get RS485 data from user-space.

    Signed-off-by: Claudio Scordino
    Signed-off-by: Jesper Nilsson

    Claudio Scordino
     
  • 53bcef606   Merge branch 'for-linus' of git://www.jni.nu/cris ... Browse Code »

    * 'for-linus' of git://www.jni.nu/cris: (51 commits)
    CRIS: Fix alignment problem for older ld
    CRIS: Always dump registers for segfaulting process.
    CRIS: Add config for pausing a seg-faulting process
    CRIS: Don't take faults while in_atomic
    CRIS: Fixup lookup for delay slot faults
    CRIS: Discard exit.text and .data at runtime
    CRIS: Add cache aligned and read mostly data sections
    CRIS: Return something from profile write
    CRIS: Add ARTPEC-3 and timestamps for sync-serial
    CRIS: Better ARTPEC-3 support for gpio
    CRIS: Add include guard
    CRIS: Better handling of pinmux settings
    CRIS: New DMA defines for ARTPEC-3
    CRIS: __do_strncpy_from_user: Don't read the byte beyond the nil
    CRIS: Pagetable for ARTPEC-3
    CRIS: Machine dependent memmap.h
    CRIS: Check if pointer is set before using it
    CRIS: Machine dependent dma.h
    CRIS: Define __read_mostly for CRISv32
    CRIS: Discard .note.gnu.build-id section
    ...

    Linus Torvalds
     

08 Aug, 2010

1 commit

07 Aug, 2010

2 commits

  • b62ad9ab1   Merge branch 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linu… ... Browse Code »

    …x/kernel/git/tip/linux-2.6-tip

    * 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
    um: Fix read_persistent_clock fallout
    kgdb: Do not access xtime directly
    powerpc: Clean up obsolete code relating to decrementer and timebase
    powerpc: Rework VDSO gettimeofday to prevent time going backwards
    clocksource: Add __clocksource_updatefreq_hz/khz methods
    x86: Convert common clocksources to use clocksource_register_hz/khz
    timekeeping: Make xtime and wall_to_monotonic static
    hrtimer: Cleanup direct access to wall_to_monotonic
    um: Convert to use read_persistent_clock
    timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset
    powerpc: Cleanup xtime usage
    powerpc: Simplify update_vsyscall
    time: Kill off CONFIG_GENERIC_TIME
    time: Implement timespec_add
    x86: Fix vtime/file timestamp inconsistencies

    Trivial conflicts in Documentation/feature-removal-schedule.txt

    Much less trivial conflicts in arch/powerpc/kernel/time.c resolved as
    per Thomas' earlier merge commit 47916be4e28c ("Merge branch
    'powerpc.cherry-picks' into timers/clocksource")

    Linus Torvalds
     
  • 4aed2fd8e   Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/… ... Browse Code »

    …git/tip/linux-2.6-tip

    * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (162 commits)
    tracing/kprobes: unregister_trace_probe needs to be called under mutex
    perf: expose event__process function
    perf events: Fix mmap offset determination
    perf, powerpc: fsl_emb: Restore setting perf_sample_data.period
    perf, powerpc: Convert the FSL driver to use local64_t
    perf tools: Don't keep unreferenced maps when unmaps are detected
    perf session: Invalidate last_match when removing threads from rb_tree
    perf session: Free the ref_reloc_sym memory at the right place
    x86,mmiotrace: Add support for tracing STOS instruction
    perf, sched migration: Librarize task states and event headers helpers
    perf, sched migration: Librarize the GUI class
    perf, sched migration: Make the GUI class client agnostic
    perf, sched migration: Make it vertically scrollable
    perf, sched migration: Parameterize cpu height and spacing
    perf, sched migration: Fix key bindings
    perf, sched migration: Ignore unhandled task states
    perf, sched migration: Handle ignored migrate out events
    perf: New migration tool overview
    tracing: Drop cpparg() macro
    perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call
    ...

    Fix up trivial conflicts in Makefile and drivers/cpufreq/cpufreq.c

    Linus Torvalds
     

05 Aug, 2010

5 commits

04 Aug, 2010

19 commits