When calling target drivers to set frequency, we take cpucontrol lock.
When we modified the code to accomodate CPU hotplug, there was an attempt
to take a double lock of cpucontrol leading to a deadlock. Since the
current thread context is already holding the cpucontrol lock, we dont need
to make another attempt to acquire it.
Now we leave a trace in current->flags indicating current thread already is
under cpucontrol lock held, so we dont attempt to do this another time.
Thanks to Andrew Morton for the beating:-)
From: Brice Goglin <Brice.Goglin@ens-lyon.org>
Build fix
(akpm: this patch is still unpleasant. Ashok continues to look for a cleaner
solution, doesn't he? ;))
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Update the support for the 16550 present on most IOC3 configurations to use
the current API.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Richard Purdie
The Sharp SL-Cxx00 models have a combined power control for the SD
and CF slot 0. This patch adds hooks to the scoop driver to allow
machines to provide a custom control function for this and such a
function is added for spitz/akita/borzoi.
It also moves the gpio init code into the machine files as this
is machine dependent and differs between some models. A couple of
warnings when compiling for collie are also fixed.
Signed-off-by: Richard Purdie
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch adds the endian annotations to the Bluetooth core.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patchs adds the module parameter ignore_dga to the HCI USB driver
which makes it possible to prevent this driver from being loaded by
some buggy Digianswer devices.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
From: Andrew Morton <akpm@osdl.org>
Two missing unlocks, as noted by Ted Unangst <tedu@coverity.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
From: Matt Domsch <Matt_Domsch@dell.com>
The patch below implements the Microsoft Point-to-Point Encryption method
as a PPP compressor/decompressor. This is necessary for Linux clients and
servers to interoperate with Microsoft Point-to-Point Tunneling Protocol
(PPTP) servers (either Microsoft PPTP servers or the poptop project) which
use MPPE to encrypt data when creating a VPN.
This patch differs from the kernel_ppp_mppe DKMS pacakge at
pptpclient.sourceforge.net by utilizing the kernel crypto routines rather
than providing its own SHA1 and arcfour implementations.
Minor changes to ppp_generic.c try to prevent a link from disabling
compression (in our case, the encryption) after it has started using
compression (encryption).
Feedback to <pptpclient-devel@lists.sourceforge.net> please.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Cc: James Cameron <james.cameron@hp.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
From: "Philippe De Muyter" <phdm@macqel.be>
This patch avoids ppp-generated kernel crashes on machines where unaligned
accesses are forbidden (ie: m68000), by fixing ppp alignment setting for
reused skb's.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/arm/kernel/irq.c:998:26: warning: Using plain integer as NULL pointer
arch/arm/kernel/smp.c:145:25: warning: Using plain integer as NULL pointer
arch/arm/kernel/smp.c:362:5: warning: symbol 'smp_call_function_on_cpu' was not declared. Should it be static?
drivers/video/amba-clcd.c:521:12: warning: symbol 'amba_clcdfb_init' was not declared. Should it be static?
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The PowerBook HD led code uses obsoletes device-tree accessors which do
not work anymore for getting the root of the tree.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Building a PowerMac kernel with ARCH=powerpc causes a bunch of warnings,
this fixes some of them
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This adds a new thermal control framework for PowerMac, along with the
implementation for PowerMac8,1, PowerMac8,2 (iMac G5 rev 1 and 2), and
PowerMac9,1 (latest single CPU desktop). In the future, I expect to move
the older G5 thermal control to the new framework as well.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This patch adds the ability to the SMU driver to recover missing
calibration partitions from the SMU chip itself. It also adds some
dynamic mecanism to /proc/device-tree so that new properties are visible
to userland.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
CPU freq support using 970FX powertune facility for iMac G5 and SMU
based single CPU desktop.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
all ioctls are 32bit compat clean, so the driver can use ->compat_ioctl
and ->unlocked_ioctl easily.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
implement a compat_ioctl handle in the driver instead of having table
entries in sparc64 ioctl32.c (I plan to get rid of the arch ioctl32.c
file eventually)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
all the ioctls in the driver are 32bit compat clean and don't need BKL,
so we can switch it to ->unlocked_ioctl and ->compat_ioctl trivially.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patch from Uli Luckas
This is a simplification of patch 3116/1 as sugested by Russell King.
Signed-off-by: Uli Luckas <u.luckas@road-gmbh.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add support for the new 5208 ColdFire (Matt Waddel / Mike Lavender)
Patch originally from Matt Waddel (from code originally written by
Mike Lavender).
I also re-ordered the init code to avoid interrupt lockups on
some platforms (at least the 5275, but others have reported it on
the 5235 as well).
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add support for the new 5208 ColdFire in the FEC ethernet header.
Patch originally from Matt Waddel (from code originally written by
Mike Lavender).
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add support for the Freescale 5208 processor UART's to the common
ColdFire serial port code.
Patch originally from Matt Waddel (from code originally written by
Mike Lavender).
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The INFTL mount code contains a kmalloc() followed by a memset() without
handling a possible memory allocation failure.
Signed-off-by: <panagiotis.issaris@mech.kuleuven.ac.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Something horrid has happened to the indenting and braces in this function,
producing a warning:
drivers/hwmon/max1619.c: In function `max1619_detect':
drivers/hwmon/max1619.c:196: warning: `man_id' might be used uninitialized in this function
drivers/hwmon/max1619.c:196: warning: `chip_id' might be used uninitialized in this function
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 the following unused global function:
- core.c: pnp_remove_device
- #if 0 the following unneeded EXPORT_SYMBOL's:
- card.c: pnp_add_card
- card.c: pnp_remove_card
- card.c: pnp_add_card_device
- card.c: pnp_remove_card_device
- card.c: pnp_add_card_id
- core.c: pnp_register_protocol
- core.c: pnp_unregister_protocol
- core.c: pnp_add_device
- core.c: pnp_remove_device
- pnpacpi/core.c: pnpacpi_protocol
- driver.c: pnp_add_id
- isapnp/core.c: isapnp_read_byte
- manager.c: pnp_auto_config_dev
- resource.c: pnp_register_dependent_option
- resource.c: pnp_register_independent_option
- resource.c: pnp_register_irq_resource
- resource.c: pnp_register_dma_resource
- resource.c: pnp_register_port_resource
- resource.c: pnp_register_mem_resource
Note that this patch #if 0's exactly one functions and removes no
functions. Most it does is the #if 0 of EXPORT_SYMBOL's, so if any modular
code will use any of them, re-adding will be trivial.
Modular ISAPnP might be interesting in some cases, but this is more legacy
code. If someone would work on it to sort all the issues out (starting
with the point that most users of __ISAPNP__ will have to be fixed)
re-enabling the required EXPORT_SYMBOL's won't be hard for him.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is the remaining misc drivers/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in misc files in
drivers/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Len Brown <len.brown@intel.com>
Acked-by: "Antonino A. Daplas" <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is the drivers/media/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/media/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Johannes Stezenbach <js@linuxtv.org>
Cc: Michael Krufky <mkrufky@m1k.net>
Cc: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Acked-by : Manu Abraham <manu@linuxtv.org>
Acked-by: Andreas Oberritter <obi@linuxtv.org>
Acked-by: Wilson Michaels <wilsonmichaels@earthlink.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is the drivers/s390/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/s390/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Cornelia Huck <cohuck@de.ibm.com>
Acked-by: Stefan Bader <Stefan.Bader@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is the drivers/isdn/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/isdn/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is the drivers/char/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/char/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ashok Raj
Linus Torvalds
Ralf Baechle
Richard Purdie
David S. Miller
Marcel Holtmann
Andrew Morton
Matt Domsch
Philippe De Muyter
Russell King
Paul Mackerras
Benjamin Herrenschmidt
Christoph Hellwig
David S. Miller
Uli Luckas
Ladislav Michl
Greg Ungerer
Adrian Bunk
Jesper Juhl