Commit Graph

36417 Commits

Author SHA1 Message Date
Paul Mundt dc825b1790 sh: intc: IRQ auto-distribution support.
This implements support for hardware-managed IRQ balancing as implemented
by SH-X3 cores (presently only hooked up for SH7786, but can probably be
carried over to other SH-X3 cores, too).

CPUs need to specify their distribution register along with the mask
definitions, as these follow the same format. Peripheral IRQs that don't
opt out of balancing will be automatically distributed at the whim of the
hardware block, while each CPU needs to verify whether it is handling the
IRQ or not, especially before clearing the mask.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-04-15 13:13:52 +09:00
Paul Mundt 43b8774dc4 sh: intc: userimask support.
This adds support for hardware-assisted userspace irq masking for
special priority levels. Due to the SR.IMASK interactivity, only some
platforms implement this in hardware (including but not limited to
SH-4A interrupt controllers, and ARM-based SH-Mobile CPUs). Each CPU
needs to wire this up on its own, for now only SH7786 is wired up as an
example.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-04-13 14:43:03 +09:00
Paul Mundt 94a46d3cde Merge branch 'sh/stable-updates' 2010-04-05 12:21:09 +09:00
Linus Torvalds 8ce42c8b7f Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Always build the powerpc perf_arch_fetch_caller_regs version
  perf: Always build the stub perf_arch_fetch_caller_regs version
  perf, probe-finder: Build fix on Debian
  perf/scripts: Tuple was set from long in both branches in python_process_event()
  perf: Fix 'perf sched record' deadlock
  perf, x86: Fix callgraphs of 32-bit processes on 64-bit kernels
  perf, x86: Fix AMD hotplug & constraint initialization
  x86: Move notify_cpu_starting() callback to a later stage
  x86,kgdb: Always initialize the hw breakpoint attribute
  perf: Use hot regs with software sched switch/migrate events
  perf: Correctly align perf event tracing buffer
2010-04-04 12:13:10 -07:00
Linus Torvalds 5e11611a5d Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 5965/1: Fix soft lockup in at91 udc driver
  ARM: 6006/1: ARM: Use the correct NOP size in memmove for Thumb-2 kernel builds
  ARM: 6005/1: arm: kprobes: fix register corruption with jprobes
  ARM: 6003/1: removing compilation warning from pl061.h
  ARM: 6001/1: removing compilation warning comming from clkdev.h
  ARM: 6000/1: removing compilation warning comming from <asm/irq.h>
  ARM: 5999/1: Including device.h and resource.h header files in linux/amba/bus.h
  ARM: 5997/1: ARM: Correct the VFPv3 detection
  ARM: 5996/1: ARM: Change the mandatory barriers implementation (4/4)
  ARM: 5995/1: ARM: Add L2x0 outer_sync() support (3/4)
  ARM: 5994/1: ARM: Add outer_cache_fns.sync function pointer (2/4)
  ARM: 5993/1: ARM: Move the outer_cache definitions into a separate file (1/4)
2010-04-02 19:50:11 -07:00
Linus Torvalds 24b99d1576 Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  Freezer: Fix buggy resume test for tasks frozen with cgroup freezer
  Freezer: Only show the state of tasks refusing to freeze
2010-04-02 19:44:42 -07:00
Ingo Molnar 50d11d190a Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent 2010-04-02 19:29:17 +02:00
Linus Torvalds 42be79e37e Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (76 commits)
  drm/radeon/kms: enable ACPI powermanagement mode on radeon gpus.
  drm/radeon/kms: rs400/480 should set common registers.
  drm/radeon/kms: add sanity check to wptr.
  drm/radeon/kms/evergreen: get DP working
  drm/radeon/kms: add hw_i2c module option
  drm/radeon/kms: use new pre/post_xfer i2c bit algo hooks
  drm/radeon/kms: disable MSI on IGP chips
  drm/radeon/kms: display watermark updates (v2)
  drm/radeon/kms/dp: disable training pattern on the sink at the end of link training
  drm/radeon/kms: minor fixes for eDP with LCD* device tags (v2)
  drm/radeon/kms/dp: remove extraneous training complete call
  drm/radeon/kms/atom: minor fixes to transmitter setup
  drm/radeon/kms: Only restrict BO to visible VRAM size when pinning to VRAM.
  drm: fix build error when SYSRQ is disabled
  drm/radeon/kms: fix macbookpro connector quirk
  drm/radeon/r6xx/r7xx: further safe reg clean up
  drm/radeon: bump the UMS driver version for r6xx/r7xx const buffer support
  drm/radeon/kms: bump the version for r6xx/r7xx const buffer support
  drm/radeon/r6xx/r7xx: CS parser fixes
  drm/radeon/kms: fix some typos in r6xx/r7xx hpd setup
  ...

Fix up MSI-related conflicts in drivers/gpu/drm/radeon/radeon_irq_kms.c
2010-04-01 09:19:42 -07:00
Frederic Weisbecker e49a5bd381 perf: Use hot regs with software sched switch/migrate events
Scheduler's task migration events don't work because they always
pass NULL regs perf_sw_event(). The event hence gets filtered
in perf_swevent_add().

Scheduler's context switches events use task_pt_regs() to get
the context when the event occured which is a wrong thing to
do as this won't give us the place in the kernel where we went
to sleep but the place where we left userspace. The result is
even more wrong if we switch from a kernel thread.

Use the hot regs snapshot for both events as they belong to the
non-interrupt/exception based events family. Unlike page faults
or so that provide the regs matching the exact origin of the event,
we need to save the current context.

This makes the task migration event working and fix the context
switch callchains and origin ip.

Example: perf record -a -e cs

Before:

    10.91%      ksoftirqd/0                  0  [k] 0000000000000000
                |
                --- (nil)
                    perf_callchain
                    perf_prepare_sample
                    __perf_event_overflow
                    perf_swevent_overflow
                    perf_swevent_add
                    perf_swevent_ctx_event
                    do_perf_sw_event
                    __perf_sw_event
                    perf_event_task_sched_out
                    schedule
                    run_ksoftirqd
                    kthread
                    kernel_thread_helper

After:

    23.77%  hald-addon-stor  [kernel.kallsyms]  [k] schedule
            |
            --- schedule
               |
               |--60.00%-- schedule_timeout
               |          wait_for_common
               |          wait_for_completion
               |          blk_execute_rq
               |          scsi_execute
               |          scsi_execute_req
               |          sr_test_unit_ready
               |          |
               |          |--66.67%-- sr_media_change
               |          |          media_changed
               |          |          cdrom_media_changed
               |          |          sr_block_media_changed
               |          |          check_disk_change
               |          |          cdrom_open

v2: Always build perf_arch_fetch_caller_regs() now that software
events need that too. They don't need it from modules, unlike trace
events, so we keep the EXPORT_SYMBOL in trace_event_perf.c

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
2010-04-01 08:26:31 +02:00
Dave Airlie 3595be778d Merge branch 'v2.6.34-rc2' into drm-linus 2010-03-31 14:55:14 +10:00
Paul Mundt 720fcb36ac Merge branches 'sh/intc-extension', 'sh/dmaengine', 'sh/serial-dma' and 'sh/clkfwk'
Conflicts:
	arch/sh/kernel/cpu/clock.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-30 11:26:43 +09:00
Linus Torvalds 6631424fd2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits)
  r8169: offical fix for CVE-2009-4537 (overlength frame DMAs)
  ipv6: Don't drop cache route entry unless timer actually expired.
  tulip: Add missing parens.
  r8169: fix broken register writes
  pcnet_cs: add new id
  bonding: fix broken multicast with round-robin mode
  drivers/net: Fix continuation lines
  e1000: do not modify tx_queue_len on link speed change
  net: ipmr/ip6mr: prevent out-of-bounds vif_table access
  ixgbe: Do not run all Diagnostic offline tests when VFs are active
  igb: use correct bits to identify if managability is enabled
  benet: Fix compile warnnings in drivers/net/benet/be_ethtool.c
  net: Add MSG_WAITFORONE flag to recvmmsg
  e1000e: do not modify tx_queue_len on link speed change
  igbvf: do not modify tx_queue_len on link speed change
  ipv4: Restart rt_intern_hash after emergency rebuild (v2)
  ipv4: Cleanup struct net dereference in rt_intern_hash
  net: fix netlink address dumping in IPv4/IPv6
  tulip: Fix null dereference in uli526x_rx_packet()
  gianfar: fix undo of reserve()
  ...
2010-03-29 14:41:18 -07:00
Linus Torvalds de329820e9 ext3: fix broken handling of EXT3_STATE_NEW
In commit 9df93939b7 ("ext3: Use bitops to read/modify
EXT3_I(inode)->i_state") ext3 changed its internal 'i_state' variable to
use bitops for its state handling.  However, unline the same ext4
change, it didn't actually change the name of the field when it changed
the semantics of it.

As a result, an old use of 'i_state' remained in fs/ext3/ialloc.c that
initialized the field to EXT3_STATE_NEW.  And that does not work
_at_all_ when we're now working with individually named bits rather than
values that get masked.  So the code tried to mark the state to be new,
but in actual fact set the field to EXT3_STATE_JDATA.  Which makes no
sense at all, and screws up all the code that checks whether the inode
was newly allocated.

In particular, it made the xattr code unhappy, and caused various random
behavior, like apparently

	https://bugzilla.redhat.com/show_bug.cgi?id=577911

So fix the initialization, and rename the field to match ext4 so that we
don't have this happen again.

Cc: James Morris <jmorris@namei.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Daniel J Walsh <dwalsh@redhat.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-29 14:30:19 -07:00
viresh kumar 367d6accea ARM: 6003/1: removing compilation warning from pl061.h
pl061.h is using u8 type. including <linux/types.h> in pl061.h to avoid
warning.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-29 17:33:33 +01:00
viresh kumar c36207a462 ARM: 5999/1: Including device.h and resource.h header files in linux/amba/bus.h
linux/amba/bus.h have dependencies on linux/device.h and linux/resource.h, but
it doesn't include them. We get compilation errors in our files which include
bus.h but doesn't include device.h and resource.h. This patch includes device.h
and resource.h in linux/amba/bus.h file.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linux Walleij <linux.ml.walleij@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-29 17:33:31 +01:00
David Howells a53f4f9efa SLOW_WORK: CONFIG_SLOW_WORK_PROC should be CONFIG_SLOW_WORK_DEBUG
CONFIG_SLOW_WORK_PROC was changed to CONFIG_SLOW_WORK_DEBUG, but not in all
instances.  Change the remaining instances.  This makes the debugfs file
display the time mark and the owner's description again.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-29 09:14:47 -07:00
Brandon L Black 71c5c1595c net: Add MSG_WAITFORONE flag to recvmmsg
Add new flag MSG_WAITFORONE for the recvmmsg() syscall.
When this flag is specified for a blocking socket, recvmmsg()
will only block until at least 1 packet is available.  The
default behavior is to block until all vlen packets are
available.  This flag has no effect on non-blocking sockets
or when used in combination with MSG_DONTWAIT.

Signed-off-by: Brandon L Black <blblack@gmail.com>
Acked-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-27 08:29:01 -07:00
Linus Torvalds b72c40949b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  x86/PCI: truncate _CRS windows with _LEN > _MAX - _MIN + 1
  x86/PCI: for host bridge address space collisions, show conflicting resource
  frv/PCI: remove redundant warnings
  x86/PCI: remove redundant warnings
  PCI: don't say we claimed a resource if we failed
  PCI quirk: Disable MSI on VIA K8T890 systems
  PCI quirk: RS780/RS880: work around missing MSI initialization
  PCI quirk: only apply CX700 PCI bus parking quirk if external VT6212L is present
  PCI: complain about devices that seem to be broken
  PCI: print resources consistently with %pR
  PCI: make disabled window printk style match the enabled ones
  PCI: break out primary/secondary/subordinate for readability
  PCI: for address space collisions, show conflicting resource
  resources: add interfaces that return conflict information
  PCI: cleanup error return for pcix get and set mmrbc functions
  PCI: fix access of PCI_X_CMD by pcix get and set mmrbc functions
  PCI: kill off pci_register_set_vga_state() symbol export.
  PCI: fix return value from pcix_get_max_mmrbc()
2010-03-26 16:34:29 -07:00
Matt Helsley 5a7aadfe2f Freezer: Fix buggy resume test for tasks frozen with cgroup freezer
When the cgroup freezer is used to freeze tasks we do not want to thaw
those tasks during resume. Currently we test the cgroup freezer
state of the resuming tasks to see if the cgroup is FROZEN.  If so
then we don't thaw the task. However, the FREEZING state also indicates
that the task should remain frozen.

This also avoids a problem pointed out by Oren Ladaan: the freezer state
transition from FREEZING to FROZEN is updated lazily when userspace reads
or writes the freezer.state file in the cgroup filesystem. This means that
resume will thaw tasks in cgroups which should be in the FROZEN state if
there is no read/write of the freezer.state file to trigger this
transition before suspend.

NOTE: Another "simple" solution would be to always update the cgroup
freezer state during resume. However it's a bad choice for several reasons:
Updating the cgroup freezer state is somewhat expensive because it requires
walking all the tasks in the cgroup and checking if they are each frozen.
Worse, this could easily make resume run in N^2 time where N is the number
of tasks in the cgroup. Finally, updating the freezer state from this code
path requires trickier locking because of the way locks must be ordered.

Instead of updating the freezer state we rely on the fact that lazy
updates only manage the transition from FREEZING to FROZEN. We know that
a cgroup with the FREEZING state may actually be FROZEN so test for that
state too. This makes sense in the resume path even for partially-frozen
cgroups -- those that really are FREEZING but not FROZEN.

Reported-by: Oren Ladaan <orenl@cs.columbia.edu>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Cc: stable@kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-03-26 23:51:44 +01:00
Linus Torvalds 6f063aea55 Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia: use dev_pm_ops for class pcmcia_socket_class
  power: support _noirq actions on device types and classes
  pcmcia: allow for four multifunction subdevices (again)
  pcmcia: do not use ioports < 0x100 on x86
  pd6729: Coding Style fixes
2010-03-26 15:11:20 -07:00
Linus Torvalds 054319b5e2 Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  time: Fix accumulation bug triggered by long delay.
  posix-cpu-timers: Reset expire cache when no timer is running
  timer stats: Fix del_timer_sync() and try_to_del_timer_sync()
  clockevents: Sanitize min_delta_ns adjustment and prevent overflows
2010-03-26 15:10:38 -07:00
Linus Torvalds 8128f55a0b Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Remove excessive early_res debug output
  softlockup: Stop spurious softlockup messages due to overflow
  rcu: Fix local_irq_disable() CONFIG_PROVE_RCU=y false positives
  rcu: Fix tracepoints & lockdep false positive
  rcu: Make rcu_read_lock_bh_held() allow for disabled BH
2010-03-26 15:08:31 -07:00
Linus Torvalds 126a031e43 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
  TIPC: Removed inactive maintainer
  isdn: Cleanup Sections in PCMCIA driver elsa
  isdn: Cleanup Sections in PCMCIA driver avma1
  isdn: Cleanup Sections in PCMCIA driver teles
  isdn: Cleanup Sections in PCMCIA driver sedlbauer
  via-velocity: Fix FLOW_CNTL_TX_RX handling in set_mii_flow_control()
  netfilter: xt_hashlimit: IPV6 bugfix
  netfilter: ip6table_raw: fix table priority
  netfilter: xt_hashlimit: dl_seq_stop() fix
  af_key: return error if pfkey_xfrm_policy2msg_prep() fails
  skbuff: remove unused dma_head & dma_maps fields
  vlan: updates vlan real_num_tx_queues
  vlan: adds vlan_dev_select_queue
  igb: only use vlan_gro_receive if vlans are registered
  igb: do not modify tx_queue_len on link speed change
  igb: count Rx FIFO errors correctly
  bnx2: Use proper handler during netpoll.
  bnx2: Fix netpoll crash.
  ksz884x: fix return value of netdev_set_eeprom
  cgroups: net_cls as module
  ...
2010-03-25 14:06:29 -07:00
David S. Miller 80bb3a00fa Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2010-03-25 11:48:58 -07:00
Jozsef Kadlecsik 9c13886665 netfilter: ip6table_raw: fix table priority
The order of the IPv6 raw table is currently reversed, that makes impossible
to use the NOTRACK target in IPv6: for example if someone enters

ip6tables -t raw -A PREROUTING -p tcp --dport 80 -j NOTRACK

and if we receive fragmented packets then the first fragment will be
untracked and thus skip nf_ct_frag6_gather (and conntrack), while all
subsequent fragments enter nf_ct_frag6_gather and reassembly will never
successfully be finished.

Singed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-03-25 11:17:26 +01:00
Linus Torvalds 6c75969e22 Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: don't try to decode GETATTR if DELEGRETURN returned error
  sunrpc: handle allocation errors from __rpc_lookup_create()
  SUNRPC: Fix the return value of rpc_run_bc_task()
  SUNRPC: Fix a use after free bug with the NFSv4.1 backchannel
  SUNRPC: Fix a potential memory leak in auth_gss
  NFS: Prevent another deadlock in nfs_release_page()
2010-03-24 16:50:46 -07:00
Linus Torvalds 18020a0d8c Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-scmi: Provide module aliases for automatic loading
  i2c-scmi: Support IBM SMBus CMI devices
  acpi: Support IBM SMBus CMI devices
2010-03-24 16:41:48 -07:00
David Howells 90fddabf58 Document Linux's circular buffering capabilities
Document the circular buffering capabilities available in Linux.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Randy Dunlap <rdunlap@xenotime.net>
Reviewed-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24 16:31:22 -07:00
Adrian Hunter 7198f3c9b1 mmc: fix incorrect interpretation of card type bits
In the extended CSD register the CARD_TYPE is an 8-bit value of which the
upper 6 bits were reserved in JEDEC specifications prior to version 4.4.
In version 4.4 two of the reserved bits were designated for identifying
support for the newly added High-Speed Dual Data Rate.  Unfortunately the
mmc_read_ext_csd() function required that the reserved bits be zero
instead of ignoring them as it should.

This patch makes mmc_read_ext_csd() ignore the CARD_TYPE bits that are
reserved or not yet supported.  It also stops the function jumping to the
end as though an error occurred, when it is only warns that the CARD_TYPE
bits (that it does interpret) are invalid.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24 16:31:21 -07:00
Jeff Mahoney 6cb4aff0a7 reiserfs: fix oops while creating privroot with selinux enabled
Commit 57fe60df ("reiserfs: add atomic addition of selinux attributes
during inode creation") contains a bug that will cause it to oops when
mounting a file system that didn't previously contain extended attributes
on a system using security.* xattrs.

The issue is that while creating the privroot during mount
reiserfs_security_init calls reiserfs_xattr_jcreate_nblocks which
dereferences the xattr root.  The xattr root doesn't exist, so we get an
oops.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15309

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24 16:31:21 -07:00
David Härdeman 4c87684d32 kfifo: fix KFIFO_INIT in include/linux/kfifo.h
include/linux/kfifo.h first defines and then undefines __kfifo_initializer
which is used by INIT_KFIFO (which is also a macro, so building a module
which uses INIT_KFIFO will fail).

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Stefani Seibold <stefani@seibold.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24 16:31:20 -07:00
Alexander Duyck 03e6d819c2 skbuff: remove unused dma_head & dma_maps fields
The dma map fields in the skb_shared_info structure no longer has any users
and can be dropped since it is making the skb_shared_info unecessarily larger.

Running slabtop show that we were using 4K slabs for the skb->head on x86_64 w/
an allocation size of 1522.  It turns out that the dma_head and dma_maps array
made skb_shared large enough that we had crossed over the 2k boundary with
standard frames and as such we were using 4k blocks of memory for all skbs.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24 11:13:35 -07:00
Darrick J. Wong 222e82ac9f acpi: Support IBM SMBus CMI devices
On some old IBM workstations and desktop computers, the BIOS presents in the
DSDT an SMBus object that is missing the HID identifier that the i2c-scmi
driver looks for.  Modify the ACPI device scan code to insert the missing HID
if it finds an IBM system with such an object.

Affected machines: IntelliStation Z20/Z30.  Note that the i2c-i801 driver no
longer works on these machines because of ACPI resource conflicts.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-03-24 14:38:37 +01:00
Dominik Brodowski d7646f7632 pcmcia: use dev_pm_ops for class pcmcia_socket_class
Instead of requiring PCMCIA socket drivers to call various functions
during their (bus) resume and suspend functions, register an own
dev_pm_ops for this class. This fixes several suspend/resume bugs
seen on db1xxx-ss, and probably on some other socket drivers, too.

With regard to the asymmetry with only _noirq suspend, but split up
resume, please see bug 14334 and commit 9905d1b411 .

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-24 11:00:11 +01:00
Bjorn Helgaas 66f1207bce resources: add interfaces that return conflict information
request_resource() and insert_resource() only return success or failure,
which no information about what existing resource conflicted with the
proposed new reservation.  This patch adds request_resource_conflict()
and insert_resource_conflict(), which return the conflicting resource.

Callers may use this for better error messages or to adjust the new
resource and retry the request.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-23 13:33:50 -07:00
Magnus Damm b2623a61cf dmaengine: shdma: Introduce include/linux/sh_dma.h
Create a common platform data header file for the
shdma dmaengine driver. This is done by moving
common structures from sh asm/dmaengine.h to
linux/sh_dma.h. DMA registers are also copied from
sh asm/dma-register.h to make the code architecture
independent.

The sh header file asm/dmaengine.h is still kept
with the slave id enum. This allows us to keep the
old processor specific code as is and slowly move
over to slave id enums in per-processor headers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23 17:20:06 +09:00
Magnus Damm 4bab9d426e dmaengine: shdma: Remove sh_dmae_slave_chan_id enum
This patch replaces the sh_dmae_slave_chan_id enum
with an unsigned int. The purpose of this chainge is
to make it possible to separate the slave id enums
from the dmaengine header.

The slave id enums varies with processor model, so in
the future it makes sense to put these in the processor
specific headers together with the pinmux enums.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23 17:19:30 +09:00
Linus Torvalds ae6be51ed0 Fix up prototype for sys_ipc breakage
Commit 45575f5a42 ("ppc64 sys_ipc breakage in 2.6.34-rc2") fixed the
definition of the sys_ipc() helper, but didn't fix the prototype in
<linux/syscalls.h>

Reported-and-tested-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-22 13:12:33 -07:00
Linus Torvalds 258152acc0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (38 commits)
  ip_gre: include route header_len in max_headroom calculation
  if_tunnel.h: add missing ams/byteorder.h include
  ipv4: Don't drop redirected route cache entry unless PTMU actually expired
  net: suppress lockdep-RCU false positive in FIB trie.
  Bluetooth: Fix kernel crash on L2CAP stress tests
  Bluetooth: Convert debug files to actually use debugfs instead of sysfs
  Bluetooth: Fix potential bad memory access with sysfs files
  netfilter: ctnetlink: fix reliable event delivery if message building fails
  netlink: fix NETLINK_RECV_NO_ENOBUFS in netlink_set_err()
  NET_DMA: free skbs periodically
  netlink: fix unaligned access in nla_get_be64()
  tcp: Fix tcp_mark_head_lost() with packets == 0
  net: ipmr/ip6mr: fix potential out-of-bounds vif_table access
  KS8695: update ksp->next_rx_desc_read at the end of rx loop
  igb: Add support for 82576 ET2 Quad Port Server Adapter
  ixgbevf: Message formatting cleanups
  ixgbevf: Shorten up delay timer for watchdog task
  ixgbevf: Fix VF Stats accounting after reset
  ixgbe: Set IXGBE_RSC_CB(skb)->DMA field to zero after unmapping the address
  ixgbe: fix for real_num_tx_queues update issue
  ...
2010-03-22 10:01:58 -07:00
Trond Myklebust c9acb42ef1 SUNRPC: Fix a use after free bug with the NFSv4.1 backchannel
The ->release_request() callback was designed to allow the transport layer
to do housekeeping after the RPC call is done. It cannot be used to free
the request itself, and doing so leads to a use-after-free bug in
xprt_release().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-03-22 05:32:44 -04:00
Paulius Zaleckas 9bf35c8ddd if_tunnel.h: add missing ams/byteorder.h include
When compiling userspace application which includes
if_tunnel.h and uses GRE_* defines you will get undefined
reference to __cpu_to_be16.

Fix this by adding missing #include <asm/byteorder.h>

Cc: stable@kernel.org
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-21 21:19:02 -07:00
Marcel Holtmann aef7d97cc6 Bluetooth: Convert debug files to actually use debugfs instead of sysfs
Some of the debug files ended up wrongly in sysfs, because at that point
of time, debugfs didn't exist. Convert these files to use debugfs and
also seq_file. This patch converts all of these files at once and then
removes the exported symbol for the Bluetooth sysfs class.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-03-21 05:49:35 +01:00
Pablo Neira Ayuso 37b7ef7203 netfilter: ctnetlink: fix reliable event delivery if message building fails
This patch fixes a bug that allows to lose events when reliable
event delivery mode is used, ie. if NETLINK_BROADCAST_SEND_ERROR
and NETLINK_RECV_NO_ENOBUFS socket options are set.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 14:29:03 -07:00
Pablo Neira Ayuso 1a50307ba1 netlink: fix NETLINK_RECV_NO_ENOBUFS in netlink_set_err()
Currently, ENOBUFS errors are reported to the socket via
netlink_set_err() even if NETLINK_RECV_NO_ENOBUFS is set. However,
that should not happen. This fixes this problem and it changes the
prototype of netlink_set_err() to return the number of sockets that
have set the NETLINK_RECV_NO_ENOBUFS socket option. This return
value is used in the next patch in these bugfix series.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 14:29:03 -07:00
Pablo Neira Ayuso f5d410f2ea netlink: fix unaligned access in nla_get_be64()
This patch fixes a unaligned access in nla_get_be64() that was
introduced by myself in a17c859849.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-19 22:47:23 -07:00
Linus Torvalds e4d806377b Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  serial: sh-sci: remove duplicated #include
  sh: Export uncached helper symbols.
  sh: Fix up NUMA build for 29-bit.
  serial: sh-sci: Fix build failure for non-sh architectures.
  sh: Fix up uncached offset for legacy 29-bit mode.
  sh: Support CPU affinity masks for INTC controllers.
2010-03-19 18:16:20 -07:00
Linus Torvalds 8dba8f9494 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  tty_port,usb-console: Fix usb serial console open/close regression
  tty: cpm_uart: use resource_size()
  tty_buffer: Fix distinct type warning
  hvc_console: Fix race between hvc_close and hvc_remove
  uartlite: Fix build on sparc.
  tty: Take a 256 byte padding into account when buffering below sub-page units
  Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a VT_RELDISP ioctl call"
2010-03-19 13:40:03 -07:00
Linus Torvalds 8fdb7e9f61 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (45 commits)
  USB: gadget/multi: cdc_do_config: remove redundant check
  usb: r8a66597-hcd: fix removed from an attached hub
  USB: xhci: Make endpoint interval debugging clearer.
  USB: Fix usb_fill_int_urb for SuperSpeed devices
  USB: cp210x: Remove double usb_control_msg from cp210x_set_config
  USB: Remove last bit of CONFIG_USB_BERRY_CHARGE
  USB: gadget: add gadget controller number for s3c-hsotg driver
  USB: ftdi_sio: Fix locking for change_speed() function
  USB: g_mass_storage: fixed module name in Kconfig
  USB: gadget: f_mass_storage::fsg_bind(): fix error handling
  USB: g_mass_storage: fix section mismatch warnings
  USB: gadget: fix Blackfin builds after gadget cleansing
  USB: goku_udc: remove potential null dereference
  USB: option.c: Add Pirelli VID/PID and indicate Pirelli's modem interface is 0xff
  USB: serial: Fix module name typo for qcaux Kconfig entry.
  usb: cdc-wdm: Fix deadlock between write and resume
  usb: cdc-wdm: Fix order in disconnect and fix locking
  usb: cdc-wdm:Fix loss of data due to autosuspend
  usb: cdc-wdm: Fix submission of URB after suspension
  usb: cdc-wdm: Fix race between disconnect and debug messages
  ...
2010-03-19 13:39:21 -07:00
Matthew Wilcox f09a15e6e6 USB: Fix usb_fill_int_urb for SuperSpeed devices
USB 3 and Wireless USB specify a logarithmic encoding of the endpoint
interval that matches the USB 2 specification.  usb_fill_int_urb() didn't
know that and was filling in the interval as if it was USB 1.1.  Fix
usb_fill_int_urb() for SuperSpeed devices, but leave the wireless case
alone, because David Vrabel wants to keep the old encoding.

Update the struct urb kernel doc to note that SuperSpeed URBs must have
urb->interval specified in microframes.

Add a missing break statement in the usb_submit_urb() interrupt URB
checking, since wireless USB and SuperSpeed USB encode urb->interval
differently.  This allows xHCI roothubs to actually register with khubd.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-19 07:24:23 -07:00
Jason Wessel 336cee42dd tty_port,usb-console: Fix usb serial console open/close regression
Commit e1108a63e1 ("usb_serial: Use the
shutdown() operation") breaks the ability to use a usb console
starting in 2.6.33.  This was observed when using
console=ttyUSB0,115200 as a boot argument with an FTDI device.  The
error is:

ftdi_sio ttyUSB0: ftdi_submit_read_urb - failed submitting read urb, error -22

The handling of the ASYNCB_INITIALIZED changed in 2.6.32 such that in
tty_port_shutdown() it always clears the flag if it is set.  The fix
is to add a variable to the tty_port struct to indicate when the tty
port is a console.

CC: Alan Cox <alan@linux.intel.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-19 07:17:57 -07:00