* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
SCSI: convert struct class_device to struct device
DRM: remove unused dev_class
IB: rename "dev" to "srp_dev" in srp_host structure
IB: convert struct class_device to struct device
memstick: convert struct class_device to struct device
driver core: replace remaining __FUNCTION__ occurrences
sysfs: refill attribute buffer when reading from offset 0
PM: Remove destroy_suspended_device()
Firmware: add iSCSI iBFT Support
PM: Remove legacy PM (fix)
Kobject: Replace list_for_each() with list_for_each_entry().
SYSFS: Explicitly include required header file slab.h.
Driver core: make device_is_registered() work for class devices
PM: Convert wakeup flag accessors to inline functions
PM: Make wakeup flags available whenever CONFIG_PM is set
PM: Fix misuse of wakeup flag accessors in serial core
Driver core: Call device_pm_add() after bus_add_device() in device_add()
PM: Handle device registrations during suspend/resume
block: send disk "change" event for rescan_partitions()
sysdev: detect multiple driver registrations
...
Fixed trivial conflict in include/linux/memory.h due to semaphore header
file change (made irrelevant by the change to mutex).
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
rose: Socket lock was not released before returning to user space
hci_usb: remove code obfuscation
drivers/net/appletalk: use time_before, time_before_eq, etc
drivers/atm: use time_before, time_before_eq, etc
hci_usb: do not initialize static variables to 0
tg3: 5701 DMA corruption fix
atm nicstar: Removal of debug code containing deprecated calls to cli()/sti()
iwlwifi: Fix unconditional access to station->tidp[].agg.
netfilter: Fix SIP conntrack build with NAT disabled.
netfilter: Fix SCTP nat build.
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt:
hrtimer: optimize the softirq time optimization
hrtimer: reduce calls to hrtimer_get_softirq_time()
clockevents: fix typo in tick-broadcast.c
jiffies: add time_is_after_jiffies and others which compare with jiffies
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel: (62 commits)
sched: build fix
sched: better rt-group documentation
sched: features fix
sched: /debug/sched_features
sched: add SCHED_FEAT_DEADLINE
sched: debug: show a weight tree
sched: fair: weight calculations
sched: fair-group: de-couple load-balancing from the rb-trees
sched: fair-group scheduling vs latency
sched: rt-group: optimize dequeue_rt_stack
sched: debug: add some debug code to handle the full hierarchy
sched: fair-group: SMP-nice for group scheduling
sched, cpuset: customize sched domains, core
sched, cpuset: customize sched domains, docs
sched: prepatory code movement
sched: rt: multi level group constraints
sched: task_group hierarchy
sched: fix the task_group hierarchy for UID grouping
sched: allow the group scheduler to have multiple levels
sched: mix tasks and groups
...
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (77 commits)
x86: UV startup of slave cpus
x86: integrate pci-dma.c
x86: don't do dma if mask is NULL.
x86: return conditional to mmu
x86: remove kludge from x86_64
x86: unify gfp masks
x86: retry allocation if failed
x86: don't try to allocate from DMA zone at first
x86: use a fallback dev for i386
x86: use numa allocation function in i386
x86: remove virt_to_bus in pci-dma_64.c
x86: adjust dma_free_coherent for i386
x86: move bad_dma_address
x86: isolate coherent mapping functions
x86: move dma_coherent functions to pci-dma.c
x86: merge iommu initialization parameters
x86: merge dma_supported
x86: move pci fixup to pci-dma.c
x86: move x86_64-specific to common code.
x86: move initialization functions to pci-dma.c
...
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (27 commits)
sh: Fix up L2 cache probe.
sh: Fix up SH-4A part probe.
sh: Add support for SH7723 CPU subtype.
sh: Fix up SH7763 build.
sh: Add migor_ts support to MigoR
sh: Add rs5c732b RTC support to MigoR
sh: Add I2C support to MigoR
sh: Add I2C platform data to sh7722
sh: MigoR NAND flash support using gen_flash
sh: MigoR NOR flash support using physmap-flash
sh: Fix up mach-types formatting from merge damage.
sh: r7780rp: Hook up the I2C and SMBus platform devices.
sh: Use phyical addresses for MigoR smc91x resources
sh: Use physical addresses for sh7722 USBF resources
sh: Add MigoR header file
Fix sh_keysc double free
sh: Fix up __access_ok() check for nommu.
sh: Allow optimized clear/copy page routines to be used on SH-2.
sh: Hook up the rest of the SH7770 serial ports.
sh: Add support for Solution Engine SH7721 board
...
The RCU iterators used 'rcu_dereference()' on an already-fetched RCU
pointer value, which defeats the whole point of the exercise.
When we dereference a pointer protected by RCU, we need to make sure
that we only fetch the value _once_, because if the compiler ends up
re-loading it due to register pressure, the newly reloaded value could
be different from the previously fetched one, and you get inconsistent
results.
Cleaned-up, fixed, and the pointless list_for_each_safe_rcu #define
deleted by Paul Kenney.
Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Thomas Gleixner [Sat, 19 Apr 2008 19:31:26 +0000 (21:31 +0200)]
hrtimer: optimize the softirq time optimization
The previous optimization did not take the case into account where a
clock provides its own softirq_get_time() function.
Check for the availablitiy of the clock get time function first and
then check if we need to retrieve the time for both clocks via
hrtimer_softirq_gettime() to avoid a double evaluation of time in that
case as well.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hrtimer: reduce calls to hrtimer_get_softirq_time()
It seems that hrtimer_run_queues() is calling hrtimer_get_softirq_time() more
often than it needs to. This can cause frequent contention on systems with
large numbers of processors/cores.
With this patch, hrtimer_run_queues only calls hrtimer_get_softirq_time() if
there is a pending timer in one of the hrtimer bases, and only once.
This also combines hrtimer_run_queues() and the inline run_hrtimer_queue()
into one function.
[ tglx@linutronix.de: coding style ]
Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Glauber Costa [Fri, 18 Apr 2008 20:38:58 +0000 (13:38 -0700)]
clockevents: fix typo in tick-broadcast.c
braodcast -> broadcast
Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Dave Young [Fri, 18 Apr 2008 20:38:57 +0000 (13:38 -0700)]
jiffies: add time_is_after_jiffies and others which compare with jiffies
Most of time_after like macros usages just compare jiffies and another number,
so here add some time_is_* macros for convenience.
Signed-off-by: Dave Young <hidave.darkstar@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tony Jones [Thu, 21 Feb 2008 23:13:36 +0000 (00:13 +0100)]
SCSI: convert struct class_device to struct device
It's big, but there doesn't seem to be a way to split it up smaller...
Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The struct class_device *dev_class is not used in the struct drm_head
structure at all, so remove it as class_device is being removed entirely
from the kernel.
Cc: David Airlie <airlied@linux.ie> Cc: Tony Jones <tonyj@suse.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
IB: rename "dev" to "srp_dev" in srp_host structure
This sets us up to be able to convert the srp_host to use a struct
device instead of a class_device.
Based on a original patch from Tony Jones, but split up into this piece
by Greg.
Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Reviewed-by: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Thu, 21 Feb 2008 23:13:36 +0000 (00:13 +0100)]
IB: convert struct class_device to struct device
This converts the main ib_device to use struct device instead of struct
class_device as class_device is going away.
Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
memstick: convert struct class_device to struct device
struct class_device is going away, struct device should be used instead.
Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Alex Dubov <oakad@yahoo.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Mon, 7 Apr 2008 22:35:01 +0000 (15:35 -0700)]
sysfs: refill attribute buffer when reading from offset 0
Requiring userspace to close and re-open sysfs attributes has been the
policy since before 2.6.12. It allows userspace to get a consistent
snapshot of kernel state and consume it with incremental reads and seeks.
Now, if the file position is zero the kernel assumes userspace wants to see
the new value. The application for this change is to allow a userspace
RAID metadata handler to check the state of an array without causing any
memory allocations. Thus not causing writeback to a raid array that might
be blocked waiting for userspace to take action.
Cc: Neil Brown <neilb@suse.de> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After 2.6.24 there was a plan to make the PM core acquire all device
semaphores during a suspend/hibernation to protect itself from
concurrent operations involving device objects. That proved to be
too heavy-handed and we found a better way to achieve the goal, but
before it happened, we had introduced the functions
device_pm_schedule_removal() and destroy_suspended_device() to allow
drivers to "safely" destroy a suspended device and we had adapted some
drivers to use them. Now that these functions are no longer necessary,
it seems reasonable to remove them and modify their users to use the
normal device unregistration instead.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Konrad Rzeszutek [Thu, 10 Apr 2008 02:50:41 +0000 (19:50 -0700)]
Firmware: add iSCSI iBFT Support
Add /sysfs/firmware/ibft/[initiator|targetX|ethernetX] directories along with
text properties which export the the iSCSI Boot Firmware Table (iBFT)
structure.
What is iSCSI Boot Firmware Table? It is a mechanism for the iSCSI tools to
extract from the machine NICs the iSCSI connection information so that they
can automagically mount the iSCSI share/target. Currently the iSCSI
information is hard-coded in the initrd. The /sysfs entries are read-only
one-name-and-value fields.
For full details of the IBFT structure please take a look at:
ftp://ftp.software.ibm.com/systems/support/system_x_pdf/ibm_iscsi_boot_firmware_table_v1.02.pdf
[akpm@linux-foundation.org: fix build] Signed-off-by: Konrad Rzeszutek <konradr@linux.vnet.ibm.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Peter Jones <pjones@redhat.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Randy Dunlap [Fri, 28 Mar 2008 21:22:52 +0000 (14:22 -0700)]
PM: Remove legacy PM (fix)
Source file was removed. Need to remove docbook reference also.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Pavel Machek <pavel@suse.cz> Cc: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Robert P. J. Day [Fri, 14 Mar 2008 02:41:52 +0000 (22:41 -0400)]
SYSFS: Explicitly include required header file slab.h.
After an experimental deletion of the unnecessary inclusion of
<linux/slab.h> from the header file <linux/percpu.h>, the following
files under fs/sysfs were exposed as needing to explicitly include
<linux/slab.h>.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Driver core: make device_is_registered() work for class devices
device_is_registered() can use the kobject value for this, so it will
now work with devices that are associated with only a class, not a bus
and a driver.
Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 19 Mar 2008 21:39:13 +0000 (22:39 +0100)]
PM: Convert wakeup flag accessors to inline functions
This patch (as1058) improves the wakeup macros in include/linux/pm.h.
All but the trivial ones are converted to inline routines, which
requires moving them to a separate header file since they depend on
the definition of struct device.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 19 Mar 2008 21:37:42 +0000 (22:37 +0100)]
PM: Make wakeup flags available whenever CONFIG_PM is set
The various wakeup flags and their accessor macros in struct
dev_pm_info should be available whenever CONFIG_PM is enabled, not
just when CONFIG_PM_SLEEP is on. Otherwise remote wakeup won't always
be configurable for runtime power management. This patch (as1056b)
fixes the oversight.
David Brownell adds:
More accurately, fixes the "regression" ... as noted sometime
last summer, after 296699de6bdc717189a331ab6bbe90e05c94db06
introduced CONFIG_SUSPEND. But that didn't make the regression
list for that kernel, ergo the delay in fixing it.
[rjw: rebased]
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 19 Mar 2008 21:35:13 +0000 (22:35 +0100)]
PM: Fix misuse of wakeup flag accessors in serial core
This patch (as1059) fixes a mistake in the way the serial core
initializes a device's wakeup settings. It should use the accessor
routine instead of relying on a macro producing an lvalue.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Driver core: Call device_pm_add() after bus_add_device() in device_add()
Include dpm_sysfs_add() into device_pm_add(), in analogy with
device_pm_remove(), and modify device_add() to call the latter after
bus_add_device(), to avoid situations in which the PM core may
attempt to suspend a device the registration of which has not been
successful.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
PM: Handle device registrations during suspend/resume
Modify the PM core to protect its data structures, specifically the
dpm_active list, from being corrupted if a child of the currently
suspending device is registered concurrently with its ->suspend()
callback. In that case, since the new device (the child) is added
to dpm_active after its parent, the PM core will attempt to
suspend it after the parent, which is wrong.
Introduce a new member of struct dev_pm_info, called 'sleeping',
and use it to check if the parent of the device being added to
dpm_active has been suspended, in which case the device registration
fails. Also, use 'sleeping' for checking if the ordering of devices
on dpm_active is correct.
Introduce variable 'all_sleeping' that will be set to 'true' once all
devices have been suspended and make new device registrations fail
until 'all_sleeping' is reset to 'false', in order to avoid having
unsuspended devices around while the system is going into a sleep state.
Remove pm_sleep_rwsem which is not necessary any more.
Special thanks to Alan Stern for discussions and suggestions that
lead to the creation of this patch.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kay Sievers [Sun, 9 Mar 2008 20:26:02 +0000 (21:26 +0100)]
block: send disk "change" event for rescan_partitions()
Userspace likes to get notified that the disk may have changed, when
rescan_partitions() is called after partitioning or media change. It will
make it possible to update the state of the disk with the "change" event,
before the following partition "add" events are handled.
Cc: David Zeuthen <david@fubar.dk> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ben Dooks [Tue, 4 Mar 2008 23:09:06 +0000 (15:09 -0800)]
sysdev: detect multiple driver registrations
I've just found how easy it is to accidentally register a sysdev_driver for
two different classes. When this happens, bad things happen as the
sysdev_driver structure keeps has the list entry for the driver
registration.
The following patch makes a WARN_ON() if this happens, although I think
BUG_ON or returning -EAGAIN could also be valid responses to this.
Signed-off-by: Ben Dooks <ben@fluff.org> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sam Ravnborg [Tue, 4 Mar 2008 23:09:05 +0000 (15:09 -0800)]
driver core: cpu: fix section mismatch in cpu.c:store_online
Fix following warning:
WARNING: vmlinux.o(.text+0x64609c): Section mismatch in reference from the function store_online() to the function .cpuinit.text:cpu_up()
store_online() is defined inside a HOTPLUG_CPU block so references are OK.
Ignore references by annotating store_online() with __ref.
Note: This is needed because cpu_up() most likely should not have been
__cpuinit but all the hotplug cpu code misuses the __cpuinit annotation.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kay Sievers [Wed, 20 Feb 2008 23:35:54 +0000 (00:35 +0100)]
PNP: add all PNP card device id's as individual aliases
The current PNP combined card + devices module aliase can
never ever match anything, because these values are not available
all at the same time to request a module.
Instead of adding the combined alias, we add the device id's
all as individual aliases. Device id's are exported by the PNP
bus and can now properly used to request the loading of a
matching module.
With this patch it exports only the device id's, as properly
matchable aliases:
alias: pnp:dCTL0070*
alias: pnp:dCTL0045*
alias: pnp:dCTL0023*
alias: pnp:dCTL0044*
alias: pnp:dCTL0022*
alias: pnp:dCTL0042*
alias: pnp:dCTL0041*
alias: pnp:dCTL0021*
alias: pnp:dCTL0031*
Now, the exported value of the PNP bus can be used to autoload
a matching module:
$ modprobe --first-time -n -v pnp:dCTL0045
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/core/snd-rawmidi.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/drivers/mpu401/snd-mpu401-uart.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/core/snd-hwdep.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sb-common.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sb16-csp.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sb16-dsp.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/drivers/opl3/snd-opl3-lib.ko
insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sbawe.ko
David Rientjes [Wed, 20 Feb 2008 01:39:02 +0000 (17:39 -0800)]
sysfs: small header file cleanup for SYSFS=n
Convert sysfs_remove_bin_file() to have a return type of 'void' for
!CONFIG_SYSFS configurations. Also removes unnecessary colons from empty
void functions.
Signed-off-by: David Rientjes <rientjes@google.com> Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When DEBUG is not defined, pr_debug and dev_dbg and some
other local debugging functions are specified as:
"inline __attribute__((format (printf, x, y)))"
This is done to validate printk arguments when not debugging.
Converting these functions to macros or statement expressions
"do { if (0) printk(fmt, ##arg); } while (0)"
or
"({ if (0) printk(fmt, ##arg); 0; })
makes at least gcc 4.2.2 produce smaller objects.
This has the additional benefit of allowing the optimizer to
avoid calling functions like print_mac that might have been
arguments to the printk.
defconfig x86 current:
$ size vmlinux
text data bss dec hex filename 4716770 474560 618496 5809826 58a6a2 vmlinux
all converted: (More patches follow)
$ size vmlinux
text data bss dec hex filename 4716642 474560 618496 5809698 58a622 vmlinux
Even kernel/sched.o, which doesn't even use these
functions, becomes smaller.
It appears that merely having an indirect include
of <linux/device.h> can cause bigger objects.
$ size sched.inline.o sched.if0.o
text data bss dec hex filename
31385 2854 328 34567 8707 sched.inline.o
31366 2854 328 34548 86f4 sched.if0.o
The current preprocessed only kernel/sched.i file contains:
Badari Pulavarty [Mon, 11 Feb 2008 17:23:18 +0000 (09:23 -0800)]
driver core: register_memory/unregister_memory clean ups and bugfix
register_memory()/unregister_memory() never gets called with
"root". unregister_memory() is accessing kobject_name of
the object just freed up. Since no one uses the code,
lets take the code out. And also, make register_memory() static.
Another bug fix - before calling unregister_memory()
remove_memory_block() gets a ref on kobject. unregister_memory()
need to drop that ref before calling sysdev_unregister().
Ben Nizette [Thu, 13 Mar 2008 11:27:30 +0000 (22:27 +1100)]
UIO: Implement a UIO interface for the SMX Cryptengine
This patch implements a UIO interface for the SMX Cryptengine.
The Cryptengine found on the Nias Digital SMX board is best suited
for a UIO interface. It is not wired in to the cryptographic API
as the engine handles it's own keys, algorithms, everything. All
that we know about is that if there's room in the buffer, you can
write data to it and when there's data ready, you read it out again.
There isn't necessarily even any direct correlation between data
going in and data coming out again, the engine may consume or
generate data all on its own.
This driver is for proprietary hardware but we're always told to
submit the drivers anyway; here you are. :-)
This is version 4 of this patch and addresses all issues raised by
Hans-Jürgen Koch and Paul Mundt in their reviews. Slightly altered
is Paul's suggestion to use DRV_NAME and DRV_VERSION as the UIO
version and name. While at the moment they are the same, there
is no reason for them to stay that way. Nevertheless we now at
least provide a MODULE_VERSION macro to keep modinfo happy.
Signed-off-by: Ben Nizette <bn@niasdigital.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Hans J Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bernard Pidoux [Sun, 20 Apr 2008 01:41:51 +0000 (18:41 -0700)]
rose: Socket lock was not released before returning to user space
================================================
[ BUG: lock held when returning to user space! ]
------------------------------------------------
xfbbd/3683 is leaving the kernel with locks still held!
1 lock held by xfbbd/3683:
#0: (sk_lock-AF_ROSE){--..}, at: [<c8cd1eb3>] rose_connect+0x73/0x420 [rose]
Pavel Machek [Sun, 20 Apr 2008 01:17:26 +0000 (18:17 -0700)]
hci_usb: remove code obfuscation
_urb_free is an alias for kfree... making code longer & harder to
read. Remove it.
Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Machek [Sun, 20 Apr 2008 01:13:40 +0000 (18:13 -0700)]
hci_usb: do not initialize static variables to 0
hci_usb: do not initialize static variables to 0.
Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Sun, 20 Apr 2008 01:12:33 +0000 (18:12 -0700)]
tg3: 5701 DMA corruption fix
Herbert Xu's commit fb93134dfc2a6e6fbedc7c270a31da03fce88db9, entitled
"[TCP]: Fix size calculation in sk_stream_alloc_pskb", has triggered a
bug in the 5701 where the 5701 DMA engine will corrupt outgoing
packets. This problem only happens when the starting address of the
packet matches a certain range of offsets and only when the 5701 is
placed downstream of a particular Intel bridge.
This patch detects the problematic bridge and if present, readjusts the
starting address of the packet data to a dword aligned boundary.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Mark Asselstine [Sun, 20 Apr 2008 01:10:46 +0000 (18:10 -0700)]
atm nicstar: Removal of debug code containing deprecated calls to cli()/sti()
Code within NS_DEBUG_SPINLOCKS contained deprecated cli()/sti()
function calls. NS_DEBUG_SPINLOCKS and the associated code seems to
be of little use these days so the strategy of removing this code
rather then updating it to use spinlocks has been taken.
Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com> Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 20 Apr 2008 01:09:39 +0000 (18:09 -0700)]
iwlwifi: Fix unconditional access to station->tidp[].agg.
Reportred by Ingo Molnar:
drivers/net/wireless/iwlwifi/iwl-debugfs.c: In function 'iwl_dbgfs_stations_read':
drivers/net/wireless/iwlwifi/iwl-debugfs.c:256: error: 'struct iwl4965_tid_data' has no member named 'agg'
Needs CONFIG_IWL4965_HT protection.
Signed-off-by: David S. Miller <davem@davemloft.net>
Adrian Bunk [Mon, 14 Apr 2008 18:42:20 +0000 (21:42 +0300)]
avr32: add include/asm-avr32/serial.h
On Mon, Apr 14, 2008 at 03:36:24PM +0100, Alan Cox wrote:
> On Mon, 14 Apr 2008 17:17:21 +0300
> Adrian Bunk <bunk@kernel.org> wrote:
>
> > This patch fixes the following build error:
> >
> > <-- snip -->
> >
> > ...
> > CC [M] drivers/serial/8250.o
> > /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/serial/8250.c:95:24: error: asm/serial.h: No such file or directory
> > make[3]: *** [drivers/serial/8250.o] Error 1
> >
> > <-- snip -->
> >
> > Signed-off-by: Adrian Bunk <bunk@kernel.org>
> >
> > ---
> > 3cb4ef80d75e118ccfd44f7006aea3db54afb31c diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
> > index b1bbaa0..b0e216d 100644
> > --- a/drivers/serial/Kconfig
> > +++ b/drivers/serial/Kconfig
> > @@ -11,7 +11,7 @@ menu "Serial drivers"
> > # The new 8250/16550 serial drivers
> > config SERIAL_8250
> > tristate "8250/16550 and compatible serial support"
> > - depends on (BROKEN || !SPARC)
> > + depends on (BROKEN || !SPARC) && !AVR32
> > select SERIAL_CORE
> > ---help---
>
> NAK.
>
> Add an asm/serial.h to the platform as it has PCI so will have 8250 PCI
> devices available to it. A copy of the MIPS one should be right.
Patch below.
> Alan
cu
Adrian
<-- snip -->
This patch fixes the following build error with CONFIG_SERIAL_8250:
<-- snip -->
...
CC [M] drivers/serial/8250.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/serial/8250.c:95:24: error: asm/serial.h: No such file or directory
make[3]: *** [drivers/serial/8250.o] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Adrian Bunk [Mon, 14 Apr 2008 14:16:53 +0000 (17:16 +0300)]
avr32: don't offer PARPORT_PC
This patch fixes the following compile error:
<-- snip -->
...
CC [M] drivers/parport/parport_pc.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/parport/parport_pc.c:67:25: error: asm/parport.h: No such file or directory
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/parport/parport_pc.c: In function 'parport_pc_find_ports':
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/parport/parport_pc.c:3215: error: implicit declaration of function 'parport_pc_find_nonpci_ports'
make[3]: *** [drivers/parport/parport_pc.o] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Adrian Bunk [Mon, 14 Apr 2008 14:16:44 +0000 (17:16 +0300)]
avr32: don't offer CONFIG_GEN_RTC
This patch fixes the following compile error:
<-- snip -->
...
CC [M] drivers/char/genrtc.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/char/genrtc.c:58:21: error: asm/rtc.h: No such file or directory
...
make[3]: *** [drivers/char/genrtc.o] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Adrian Bunk [Mon, 14 Apr 2008 14:16:40 +0000 (17:16 +0300)]
avr32: don't offer CONFIG_RTC
This patch fixes the following compile error:
<-- snip -->
...
CC [M] drivers/char/rtc.o
In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/char/rtc.c:70:
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/mc146818rtc.h:16:59: error: asm/mc146818rtc.h: No such file or directory
...
make[3]: *** [drivers/char/rtc.o] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Adrian Bunk [Mon, 14 Apr 2008 14:16:32 +0000 (17:16 +0300)]
add include/asm-avr32/xor.h
This patch fixes the following compile error with CONFIG_MD_RAID456
on avr32:
<-- snip -->
...
CC [M] crypto/xor.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:23:21: error: asm/xor.h: No such file or directory
/home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c: In function 'calibrate_xor_blocks':
/home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:131: error: 'XOR_TRY_TEMPLATES' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:131: error: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:131: error: for each function it appears in.)
make[2]: *** [crypto/xor.o] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
avr32: Implement set_rate(), set_parent() and mode() for pll1
This patch is a take two of adding full functionality to PLL1 on
AT32AP7000. This allows board-specific code and drivers to configure
and enable PLL1. This is useful when precise control over the
frequency of e.g. a genclock is needed and requested by users for the
ABDAC device.
The patch is based upon previous patches from both Haavard Skinnemoen
and David Brownell.
David Brownell [Thu, 14 Feb 2008 19:24:02 +0000 (11:24 -0800)]
avr32: Generic clockevents support
This combines three patches from David Brownell:
* avr32: tclib support
* avr32: simplify clocksources
* avr32: Turn count/compare into a oneshot clockevent device
Register both TC blocks (instead of just the first one) so that
the AT32/AT91 tclib code will pick them up (instead of just the
avr32-only PIT-style clocksource).
Rename the first one and its resources appropriately.
More cleanups to the cycle counter clocksource code
- Disable all the weak symbol magic; remove the AVR32-only TCB-based
clocksource code (source and header).
- Mark the __init code properly.
- Don't forget to report IRQF_TIMER.
- Make the system work properly with this clocksource, by preventing
use of the CPU "idle" sleep state in the idle loop when it's used.
Package the avr32 count/compare timekeeping support as a oneshot
clockevent device, so it supports NO_HZ and high res timers.
This means it also supports plugging in other clockevent devices
and clocksources.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
David Brownell [Tue, 12 Feb 2008 22:45:49 +0000 (14:45 -0800)]
avr32: start clocksource cleanup
Start cleaning up the AVR32 clocksource mess, starting with the cycle
counter clocksource: remove unneeded pseudo-RTC (just inline that
call to mktime) and associated build warning, and unused sysdev.
Add comment about the problem using the cycle counter register,
and adjust the clocksource rating accordingly. Later patches can
make this usable again (by disabling use of the idle state and
providing a proper clocksource without the weak binding hacks)
and move towards TCB-based clockevent support (including high
resolution timers) that's shared between AT91 and AVR32.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Ben Nizette [Thu, 7 Feb 2008 04:28:57 +0000 (15:28 +1100)]
avr32: pass i2c board info through at32_add_device_twi
New-style I2C drivers require that motherboard-mounted I2C devices are
registered with the I2C core, typically at arch_initcall time. This
can be done nice and neat by passing the struct i2c_board_info[]
through at32_add_device_twi just like we do for the SPI board info.
While we've got the hood up, remove a duplicate declaration of
at32_add_device_twi() in board.h.
Cyrill Gorcunov [Sun, 3 Feb 2008 11:22:18 +0000 (14:22 +0300)]
avr32: cleanup - use _AC macro to define PAGE_SIZE
PAGE_SIZE is used both from assembly and C code. We want to have type
specifiers when using it from C, but this will make the assembler
confused, so we need to make it conditional.
This is exactly what the _AC macro is for, so using it allows us to
get rid of a few lines of cpp noise.
Peter Zijlstra [Sat, 19 Apr 2008 17:45:00 +0000 (19:45 +0200)]
sched: rt-group: optimize dequeue_rt_stack
Now that the group hierarchy can have an arbitrary depth the O(n^2) nature
of RT task dequeues will really hurt. Optimize this by providing space to
store the tree path, so we can walk it the other way.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Sat, 19 Apr 2008 17:45:00 +0000 (19:45 +0200)]
sched: fair-group: SMP-nice for group scheduling
Implement SMP nice support for the full group hierarchy.
On each load-balance action, compile a sched_domain wide view of the full
task_group tree. We compute the domain wide view when walking down the
hierarchy, and readjust the weights when walking back up.
After collecting and readjusting the domain wide view, we try to balance the
tasks within the task_groups. The current approach is a naively balance each
task group until we've moved the targeted amount of load.
Inspired by Srivatsa Vaddsgiri's previous code and Abhishek Chandra's H-SMP
paper.
XXX: there will be some numerical issues due to the limited nature of
SCHED_LOAD_SCALE wrt to representing a task_groups influence on the
total weight. When the tree is deep enough, or the task weight small
enough, we'll run out of bits.
This patch introduces new feature of cpuset - sched domain customization.
This version provides a per-cpuset file 'sched_relax_domain_level' that
enable us to change the searching range of scheduler, which used to limit
how many cpus the scheduler searches at some schedule events, such as
wakening task and running out of runqueue.
This patch allows tasks and groups to exist in the same cfs_rq. With this
change the CFS group scheduling follows a 1/(M+N) model from a 1/(1+N)
fairness model where M tasks and N groups exist at the cfs_rq level.
projects / ~andy / linux / log