15 Jan, 2012

1 commit

  • Kmemleak patches

    Main features:
    - Handle percpu memory allocations (only scanning them, not actually
    - Memory hotplug support.

    Usability improvements:
    - Show the origin of early allocations.
    - Report previously found leaks even if kmemleak has been disabled by
    some error.

    * tag 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux:
    kmemleak: Add support for memory hotplug
    kmemleak: Handle percpu memory allocation
    kmemleak: Report previously found leaks even after an error
    kmemleak: When the early log buffer is exceeded, report the actual number
    kmemleak: Show where early_log issues come from

    Linus Torvalds

13 Jan, 2012

2 commits

  • unlzo modifies the pointer to in_buf, so we have to free the original
    buffer, not the modified pointer.

    Signed-off-by: Sascha Hauer
    Cc: Lasse Collin
    Cc: Namhyung Kim
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sascha Hauer
  • Down, down in the deepest depths of GFP_NOIO page reclaim, we have
    shrink_page_list() calling __remove_mapping() calling __delete_from_
    swap_cache() or __delete_from_page_cache().

    You would not expect those to need much stack, but in fact they call
    radix_tree_delete(): which declares a 192-byte radix_tree_path array on
    its stack (to record the node,offsets it visits when descending, in case
    it needs to ascend to update them). And if any tag is still set [1],
    that calls radix_tree_tag_clear(), which declares a further such
    192-byte radix_tree_path array on the stack. (At least we have
    interrupts disabled here, so won't then be pushing registers too.)

    That was probably a good choice when most users were 32-bit (array of
    half the size), and adding fields to radix_tree_node would have bloated
    it unnecessarily. But nowadays many are 64-bit, and each
    radix_tree_node contains a struct rcu_head, which is only used when
    freeing; whereas the radix_tree_path info is only used for updating the
    tree (deleting, clearing tags or setting tags if tagged) when a lock
    must be held, of no interest when accessing the tree locklessly.

    So add a parent pointer to the radix_tree_node, in union with the
    rcu_head, and remove all uses of the radix_tree_path. There would be
    space in that union to save the offset when descending as before (we can
    argue that a lock must already be held to exclude other users), but
    recalculating it when ascending is both easy (a constant shift and a
    constant mask) and uncommon, so it seems better just to do that.

    Two little optimizations: no need to decrement height when descending,
    adjusting shift is enough; and once radix_tree_tag_if_tagged() has set
    tag on a node and its ancestors, it need not ascend from that node

    perf on the radix tree test harness reports radix_tree_insert() as 2%
    slower (now having to set parent), but radix_tree_delete() 24% faster.
    Surely that's an exaggeration from rtth's artificially low map shift 3,
    but forcing it back to 6 still rates radix_tree_delete() 8% faster.

    [1] Can a pagecache tag (dirty, writeback or towrite) actually still be
    set at the time of radix_tree_delete()? Perhaps not if the filesystem is
    well-behaved. But although I've not tracked any stack overflow down to
    this cause, I have observed a curious case in which a dirty tag is set
    and left set on tmpfs: page migration's migrate_page_copy() happens to
    use __set_page_dirty_nobuffers() to set PageDirty on the newpage, and
    that sets PAGECACHE_TAG_DIRTY as a side-effect - harmless to a
    filesystem which doesn't use tags, except for this stack depth issue.

    Signed-off-by: Hugh Dickins
    Cc: Jan Kara
    Cc: Dave Chinner
    Cc: Mel Gorman
    Cc: Nai Xia
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Hugh Dickins

12 Jan, 2012

1 commit

  • * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits)
    x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
    PCI: Increase resource array mask bit size in pcim_iomap_regions()
    PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)
    PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
    x86/PCI: amd: factor out MMCONFIG discovery
    PCI: Enable ATS at the device state restore
    PCI: msi: fix imbalanced refcount of msi irq sysfs objects
    PCI: kconfig: English typo in pci/pcie/Kconfig
    PCI/PM/Runtime: make PCI traces quieter
    PCI: remove pci_create_bus()
    xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources
    x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus()
    x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()
    x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan
    sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources
    sparc/PCI: convert to pci_create_root_bus()
    sh/PCI: convert to pci_scan_root_bus() for correct root bus resources
    powerpc/PCI: convert to pci_create_root_bus()
    powerpc/PCI: split PHB part out of pcibios_map_io_space()

    Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due
    to the same patches being applied in other branches.

    Linus Torvalds

11 Jan, 2012

6 commits

  • * 'for-linus' of git://selinuxproject.org/~jmorris/linux-security: (32 commits)
    ima: fix invalid memory reference
    ima: free duplicate measurement memory
    security: update security_file_mmap() docs
    selinux: Casting (void *) value returned by kmalloc is useless
    apparmor: fix module parameter handling
    Security: tomoyo: add .gitignore file
    tomoyo: add missing rcu_dereference()
    apparmor: add missing rcu_dereference()
    evm: prevent racing during tfm allocation
    evm: key must be set once during initialization
    mpi/mpi-mpow: NULL dereference on allocation failure
    digsig: build dependency fix
    KEYS: Give key types their own lockdep class for key->sem
    TPM: fix transmit_cmd error logic
    TPM: NSC and TIS drivers X86 dependency fix
    TPM: Export wait_for_stat for other vendor specific drivers
    TPM: Use vendor specific function for status probe
    tpm_tis: add delay after aborting command
    tpm_tis: Check return code from getting timeouts/durations
    tpm: Introduce function to poll for result of self test

    Fix up trivial conflict in lib/Makefile due to addition of CONFIG_MPI
    and SIGSIG next to CONFIG_DQL addition.

    Linus Torvalds
  • lib: use generic pci_iomap on all architectures

    Many architectures don't want to pull in iomap.c,
    so they ended up duplicating pci_iomap from that file.
    That function isn't trivial, and we are going to modify it
    so the duplication hurts.

    This reduces the scope of the problem significantly,
    by moving pci_iomap to a separate file and
    referencing that from all architectures.

    * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
    alpha: drop pci_iomap/pci_iounmap from pci-noop.c
    mn10300: switch to GENERIC_PCI_IOMAP
    mn10300: add missing __iomap markers
    frv: switch to GENERIC_PCI_IOMAP
    tile: switch to GENERIC_PCI_IOMAP
    tile: don't panic on iomap
    sparc: switch to GENERIC_PCI_IOMAP
    sh: switch to GENERIC_PCI_IOMAP
    powerpc: switch to GENERIC_PCI_IOMAP
    parisc: switch to GENERIC_PCI_IOMAP
    mips: switch to GENERIC_PCI_IOMAP
    microblaze: switch to GENERIC_PCI_IOMAP
    arm: switch to GENERIC_PCI_IOMAP
    alpha: switch to GENERIC_PCI_IOMAP
    lib: add GENERIC_PCI_IOMAP
    lib: move GENERIC_IOMAP to lib/Kconfig

    Fix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig

    Linus Torvalds
  • Andrew elucidates:
    - First installmeant of MM. We have a HUGE number of MM patches this
    time. It's crazy.
    - MAINTAINERS updates
    - backlight updates
    - leds
    - checkpatch updates
    - misc ELF stuff
    - rtc updates
    - reiserfs
    - procfs
    - some misc other bits

    * akpm: (124 commits)
    user namespace: make signal.c respect user namespaces
    workqueue: make alloc_workqueue() take printf fmt and args for name
    procfs: add hidepid= and gid= mount options
    procfs: parse mount options
    procfs: introduce the /proc//map_files/ directory
    procfs: make proc_get_link to use dentry instead of inode
    signal: add block_sigmask() for adding sigmask to current->blocked
    sparc: make SA_NOMASK a synonym of SA_NODEFER
    reiserfs: don't lock root inode searching
    reiserfs: don't lock journal_init()
    reiserfs: delay reiserfs lock until journal initialization
    reiserfs: delete comments referring to the BKL
    drivers/rtc/interface.c: fix alarm rollover when day or month is out-of-range
    drivers/rtc/rtc-twl.c: add DT support for RTC inside twl4030/twl6030
    drivers/rtc/: remove redundant spi driver bus initialization
    drivers/rtc/rtc-jz4740.c: make jz4740_rtc_driver static
    drivers/rtc/rtc-mc13xxx.c: make mc13xxx_rtc_idtable static
    rtc: convert drivers/rtc/* to use module_platform_driver()
    drivers/rtc/rtc-wm831x.c: convert to devm_kzalloc()
    drivers/rtc/rtc-wm831x.c: remove unused period IRQ handler

    Linus Torvalds
  • Taking a pointer reference to each row in the crc table matrix, one can
    reduce the inner loop with a few insn's

    Signed-off-by: Joakim Tjernlund
    Cc: Bob Pearson
    Cc: Frank Zago
    Cc: Eric Dumazet
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joakim Tjernlund
  • The btree_for_each API is implemented with macros that internally call
    btree_get_prev(), so if btree_get_prev() isn't exported then modules fail
    to link if they try to use one of the btree_for_each macros. Since the
    rest of the btree API is exported, we should keep things orthogonal and
    make this work too.

    Signed-off-by: Roland Dreier
    Signed-off-by: Steve Hodgson
    Acked-by: Joern Engel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Steve Hodgson
  • * 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (307 commits)
    drm/nouveau/pm: fix build with HWMON off
    gma500: silence gcc warnings in mid_get_vbt_data()
    drm/ttm: fix condition (and vs or)
    drm/radeon: double lock typo in radeon_vm_bo_rmv()
    drm/radeon: use after free in radeon_vm_bo_add()
    drm/sis|via: don't return stack garbage from free_mem ioctl
    drm/radeon/kms: remove pointless CS flags priority struct
    drm/radeon/kms: check if vm is supported in VA ioctl
    drm: introduce drm_can_sleep and use in intel/radeon drivers. (v2)
    radeon: Fix disabling PCI bus mastering on big endian hosts.
    ttm: fix agp since ttm tt rework
    agp: Fix multi-line warning message whitespace
    drm/ttm/dma: Fix accounting error when calling ttm_mem_global_free_page and don't try to free freed pages.
    drm/ttm/dma: Only call set_pages_array_wb when the page is not in WB pool.
    drm/radeon/kms: sync across multiple rings when doing bo moves v3
    drm/radeon/kms: Add support for multi-ring sync in CS ioctl (v2)
    drm/radeon: GPU virtual memory support v22
    drm: make DRM_UNLOCKED ioctls with their own mutex
    drm: no need to hold global mutex for static data
    drm/radeon/benchmark: common modes sweep ignores 640x480@32

    Fix up trivial conflicts in radeon/evergreen.c and vmwgfx/vmwgfx_kms.c

    Linus Torvalds

09 Jan, 2012

3 commits

  • Conflicts:

    Resolved upstream fix vs. next conflict manually.

    Signed-off-by: James Morris

    James Morris
  • * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits)
    Kconfig: acpi: Fix typo in comment.
    misc latin1 to utf8 conversions
    devres: Fix a typo in devm_kfree comment
    btrfs: free-space-cache.c: remove extra semicolon.
    fat: Spelling s/obsolate/obsolete/g
    SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
    tools/power turbostat: update fields in manpage
    mac80211: drop spelling fix
    types.h: fix comment spelling for 'architectures'
    typo fixes: aera -> area, exntension -> extension
    devices.txt: Fix typo of 'VMware'.
    sis900: Fix enum typo 'sis900_rx_bufer_status'
    decompress_bunzip2: remove invalid vi modeline
    treewide: Fix comment and string typo 'bufer'
    hyper-v: Update MAINTAINERS
    treewide: Fix typos in various parts of the kernel, and fix some comments.
    clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
    gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
    leds: Kconfig: Fix typo 'D2NET_V2'
    sound: Kconfig: drop unknown symbol ARCH_CLPS7500

    Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
    kconfig additions, close to removed commented-out old ones)

    Linus Torvalds
  • * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
    reiserfs: Properly display mount options in /proc/mounts
    vfs: prevent remount read-only if pending removes
    vfs: count unlinked inodes
    vfs: protect remounting superblock read-only
    vfs: keep list of mounts for each superblock
    vfs: switch ->show_options() to struct dentry *
    vfs: switch ->show_path() to struct dentry *
    vfs: switch ->show_devname() to struct dentry *
    vfs: switch ->show_stats to struct dentry *
    switch security_path_chmod() to struct path *
    vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
    vfs: trim includes a bit
    switch mnt_namespace ->root to struct mount
    vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
    vfs: opencode mntget() mnt_set_mountpoint()
    vfs: spread struct mount - remaining argument of next_mnt()
    vfs: move fsnotify junk to struct mount
    vfs: move mnt_devname
    vfs: move mnt_list to struct mount
    vfs: switch pnode.h macros to struct mount *

    Linus Torvalds

08 Jan, 2012

1 commit

  • * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits)
    arm: fix up some samsung merge sysdev conversion problems
    firmware: Fix an oops on reading fw_priv->fw in sysfs loading file
    Drivers:hv: Fix a bug in vmbus_driver_unregister()
    driver core: remove __must_check from device_create_file
    debugfs: add missing #ifdef HAS_IOMEM
    arm: time.h: remove device.h #include
    driver-core: remove sysdev.h usage.
    clockevents: remove sysdev.h
    arm: convert sysdev_class to a regular subsystem
    arm: leds: convert sysdev_class to a regular subsystem
    kobject: remove kset_find_obj_hinted()
    m86k: gpio - convert sysdev_class to a regular subsystem
    mips: txx9_sram - convert sysdev_class to a regular subsystem
    mips: 7segled - convert sysdev_class to a regular subsystem
    sh: dma - convert sysdev_class to a regular subsystem
    sh: intc - convert sysdev_class to a regular subsystem
    power: suspend - convert sysdev_class to a regular subsystem
    power: qe_ic - convert sysdev_class to a regular subsystem
    power: cmm - convert sysdev_class to a regular subsystem
    s390: time - convert sysdev_class to a regular subsystem

    Fix up conflicts with 'struct sysdev' removal from various platform
    drivers that got changed:
    - arch/arm/mach-exynos/cpu.c
    - arch/arm/mach-exynos/irq-eint.c
    - arch/arm/mach-s3c64xx/common.c
    - arch/arm/mach-s3c64xx/cpu.c
    - arch/arm/mach-s5p64x0/cpu.c
    - arch/arm/mach-s5pv210/common.c
    - arch/arm/plat-samsung/include/plat/cpu.h
    - arch/powerpc/kernel/sysfs.c
    and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h

    Linus Torvalds

07 Jan, 2012

3 commits

  • * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits)
    net: pack skb_shared_info more efficiently
    net_sched: red: split red_parms into parms and vars
    net_sched: sfq: extend limits
    cnic: Improve error recovery on bnx2x devices
    cnic: Re-init dev->stats_addr after chip reset
    net_sched: Bug in netem reordering
    bna: fix sparse warnings/errors
    bna: make ethtool_ops and strings const
    xgmac: cleanups
    net: make ethtool_ops const
    vmxnet3" make ethtool ops const
    xen-netback: make ops structs const
    virtio_net: Pass gfp flags when allocating rx buffers.
    ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call
    netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call
    igb: reset PHY after recovering from PHY power down
    igb: add basic runtime PM support
    igb: Add support for byte queue limits.
    e1000: cleanup CE4100 MDIO registers access
    e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove

    Linus Torvalds
  • DEVICE_COUNT_RESOURCE will be bigger than 16 when SRIOV supported is enabled.

    Let them pass with int just like pci_enable_resources().

    Signed-off-by: Yinghai Lu
    Signed-off-by: Jesse Barnes

    Yinghai Lu
  • This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file,
    and it fixes the build error in the arch/x86/kernel/microcode_core.c
    file, that the merge did not catch.

    The microcode_core.c patch was provided by Stephen Rothwell
    who was invaluable in the merge issues involved
    with the large sysdev removal process in the driver-core tree.

    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman

06 Jan, 2012

1 commit

04 Jan, 2012

1 commit

24 Dec, 2011

1 commit

22 Dec, 2011

1 commit

20 Dec, 2011

1 commit

14 Dec, 2011

1 commit

  • These are tiny functions, there's no point in having them out-of-line.

    Cc: Alexey Dobriyan
    Cc: Eric Dumazet
    Cc: Ingo Molnar
    Signed-off-by: Peter Zijlstra
    Link: http://lkml.kernel.org/n/tip-8eccvi2ur2fzgi00xdjlbf5z@git.kernel.org
    Signed-off-by: Greg Kroah-Hartman

    Peter Zijlstra

10 Dec, 2011

1 commit

09 Dec, 2011

1 commit

  • Adaptative RED AQM for linux, based on paper from Sally FLoyd,
    Ramakrishna Gummadi, and Scott Shenker, August 2001 :


    Goal of Adaptative RED is to make max_p a dynamic value between 1% and
    50% to reach the target average queue : (max_th - min_th) / 2

    Every 500 ms:
    if (avg > target and max_p < target and max_p >= 0.01)
    decrease max_p : max_p *= beta;

    target :[min_th + 0.4*(min_th - max_th),
    min_th + 0.6*(min_th - max_th)].
    alpha : min(0.01, max_p / 4)
    beta : 0.9
    max_P is a Q0.32 fixed point number (unsigned, with 32 bits mantissa)

    Changes against our RED implementation are :

    max_p is no longer a negative power of two (1/(2^Plog)), but a Q0.32
    fixed point number, to allow full range described in Adatative paper.

    To deliver a random number, we now use a reciprocal divide (thats really
    a multiply), but this operation is done once per marked/droped packet
    when in RED_BETWEEN_TRESH window, so added cost (compared to previous
    AND operation) is near zero.

    dump operation gives current max_p value in a new TCA_RED_MAX_P

    Example on a 10Mbit link :

    tc qdisc add dev $DEV parent 1:1 handle 10: est 1sec 8sec red \
    limit 400000 min 30000 max 90000 avpkt 1000 \
    burst 55 ecn adaptative bandwidth 10Mbit

    # tc -s -d qdisc show dev eth3
    qdisc red 10: parent 1:1 limit 400000b min 30000b max 90000b ecn
    adaptative ewma 5 max_p=0.113335 Scell_log 15
    Sent 50414282 bytes 34504 pkt (dropped 35, overlimits 1392 requeues 0)
    rate 9749Kbit 831pps backlog 72056b 16p requeues 0
    marked 1357 early 35 pdrop 0 other 0

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet

07 Dec, 2011

1 commit

06 Dec, 2011

3 commits

03 Dec, 2011

1 commit

30 Nov, 2011

1 commit

  • Implementation of dynamic queue limits (dql). This is a libary which
    allows a queue limit to be dynamically managed. The goal of dql is
    to set the queue limit, number of objects to the queue, to be minimized
    without allowing the queue to be starved.

    dql would be used with a queue which has these properties:

    1) Objects are queued up to some limit which can be expressed as a
    count of objects.
    2) Periodically a completion process executes which retires consumed
    3) Starvation occurs when limit has been reached, all queued data has
    actually been consumed but completion processing has not yet run,
    so queuing new data is blocked.
    4) Minimizing the amount of queued data is desirable.

    A canonical example of such a queue would be a NIC HW transmit queue.

    The queue limit is dynamic, it will increase or decrease over time
    depending on the workload. The queue limit is recalculated each time
    completion processing is done. Increases occur when the queue is
    starved and can exponentially increase over successive intervals.
    Decreases occur when more data is being maintained in the queue than
    needed to prevent starvation. The number of extra objects, or "slack",
    is measured over successive intervals, and to avoid hysteresis the
    limit is only reduced by the miminum slack seen over a configurable
    time period.

    dql API provides routines to manage the queue:
    - dql_init is called to intialize the dql structure
    - dql_reset is called to reset dynamic values
    - dql_queued called when objects are being enqueued
    - dql_avail returns availability in the queue
    - dql_completed is called when objects have be consumed in the queue

    Configuration consists of:
    - max_limit, maximum limit
    - min_limit, minimum limit
    - slack_hold_time, time to measure instances of slack before reducing
    queue limit

    Signed-off-by: Tom Herbert
    Acked-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Tom Herbert

29 Nov, 2011

1 commit

25 Nov, 2011

1 commit

24 Nov, 2011

2 commits

  • Calling del_timer_sync() on an uninitialized timer leads to a
    never ending loop in lock_timer_base() that spins checking for a
    non-NULL timer base. Add an assertion to debugobjects to catch
    usage of uninitialized objects so that we can initialize timers
    in the del_timer_sync() path before it calls lock_timer_base().

    [ sboyd@codeaurora.org: Clarify commit message ]

    Signed-off-by: Christine Chan
    Signed-off-by: Stephen Boyd
    Cc: John Stultz
    Link: http://lkml.kernel.org/r/1320724108-20788-3-git-send-email-sboyd@codeaurora.org
    Signed-off-by: Andrew Morton
    Signed-off-by: Thomas Gleixner

    Christine Chan
  • Make debugobjects use the return code from the fixup function. That
    allows us better diagnostics in the activate check than relying on a
    WARN_ON() in the object specific code.

    [ tglx@linutronix.de: Split out the debugobjects vs. the timer change ]

    Signed-off-by: Stephen Boyd
    Cc: Christine Chan
    Cc: John Stultz
    Signed-off-by: Andrew Morton
    Link: http://lkml.kernel.org/r/1320724108-20788-2-git-send-email-sboyd@codeaurora.org
    Signed-off-by: Thomas Gleixner

    Stephen Boyd

22 Nov, 2011

1 commit

  • Fix build errors by adding Kconfig dependency on KEYS.
    CRYPTO dependency removed.

    CC security/integrity/digsig.o
    security/integrity/digsig.c: In function ?integrity_digsig_verify?:
    security/integrity/digsig.c:38:4: error: implicit declaration of function ?request_key?
    security/integrity/digsig.c:38:17: error: ?key_type_keyring? undeclared (first use in this function)
    security/integrity/digsig.c:38:17: note: each undeclared identifier is reported only once for each function it appears in
    make[2]: *** [security/integrity/digsig.o] Error 1

    Reported-by: Randy Dunlap
    Signed-off-by: Dmitry Kasatkin
    Signed-off-by: James Morris

    Dmitry Kasatkin

21 Nov, 2011

1 commit

17 Nov, 2011

1 commit

16 Nov, 2011

2 commits

  • Almost every platform_driver does the three steps get_resource,
    request_mem_region, ioremap. This does not only lead to a lot of code
    duplication, but also a huge number of similar error strings and
    inconsistent error codes on failure. So, introduce a helper function
    which simplifies remapping a resource and make it hard to do something
    wrong and add documentation for it.

    Signed-off-by: Wolfram Sang
    Acked-by: Grant Likely
    Acked-by: Tejun Heo
    Signed-off-by: Greg Kroah-Hartman

    Wolfram Sang
  • While working on devres, I found those make navigating the code a tad

    Signed-off-by: Wolfram Sang
    Acked-by: Grant Likely
    Signed-off-by: Greg Kroah-Hartman

    Wolfram Sang