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This patch resolves the following build warnings seen in 2.6.17-rc3:
WARNING: vmlinux: 'sys_close' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'memchr' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strstr' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strnlen' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strrchr' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strchr' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strcmp' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strncat' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strcat' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strncpy' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strcpy' exported twice. Previous export was in vmlinux
Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix race condition during destruction calls to avoid possibility of
accessing object after it has been freed. Instead of waking up a wait
queue directly, which is susceptible to a race where the object is
freed between the reference count going to 0 and the wake_up(), use a
completion to wait in the function doing the freeing.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The ipath driver's table of PCI IDs needs a { 0, } entry at the end.
This makes all of the device aliases visible to userspace so hotplug
loads the module for all supported devices. Without the patch,
modinfo ipath_core only shows:
alias: pci:v00001FC1d0000000Dsv*sd*bc*sc*i*
instead of the correct:
alias: pci:v00001FC1d00000010sv*sd*bc*sc*i*
alias: pci:v00001FC1d0000000Dsv*sd*bc*sc*i*
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Bryan O'Sullivan <bos@pathscale.com>
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6:
[PATCH] scx200_acb: Fix for the CS5535 errata
[PATCH] scx200_acb: Fix resource name use after free
[PATCH] scx200_acb: Fix return on init error
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This is a fix for the CS5535 errata 111:
When the SMBus controller tries to access a non-existing device, it sets
the NEGACK bit, SMBus I/O offset 01h[4], to 1 after it detects no
acknowledge at the ninth clock. The specification states that the bit
can be cleared by writing a 1 to it, but under certain circumstances it
is possible for this bit to not clear.
Writing a 0 to the bit resets the internal state machine and clears the
issue.
Since all writable bits in ACBST are W1C bits (write-one-to-clear) the
second write doesn't affect any other logic except the buggy NEGACK
state machine. The second write clears an internal register which is
responsible for "overwriting" the NEGACK bit in ACBST.
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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We can't pass a string on the stack to request_region. As soon as we
leave the function that stack is gone and the string is lost. Let's
use the same string we identify the i2c_adapter with instead, it's
more simple, more consistent, and just works.
This is the second half of fix to bug #6445.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The scx200_acb driver shouldn't return failure after initialization
if it successfully registered at least one i2c_adapter, else we are
leaking resources. The driver was OK in that respect up to 2.6.16, a
recent change broke it.
This is part of the fix to bug #6445.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
[PATCH] USB: fix omninet driver bug
[PATCH] USB: add ark3116 usb to serial driver
[PATCH] usbserial: Fixes leak in serial_open() error path.
[PATCH] usbserial: Fixes use-after-free in serial_open().
[PATCH] USB: Emagic USB firmware loading fixes
[PATCH] USB: add an IBM USB keyboard to the HID_QUIRK_NOGET blacklist
[PATCH] USB: Add Sieraa Wireless 580 evdo card to airprime.c
[PATCH] USB: ftdi_sio: add device id for ACT Solutions HomePro ZWave interface
[PATCH] USB: ftdi_sio: Add support for HCG HF Dual ISO RFID Reader
[PATCH] USB: ub oops in block_uevent
[PATCH] USB: usbcore: don't check the device's power source
[PATCH] USB: fix OHCI PM regression
[PATCH] USB: pegasus fixes (logstorm, suspend)
[PATCH] USBATM: fix modinfo output
[PATCH] USBATM: change the default speedtouch iso altsetting
[PATCH] USB: fix bug in ohci-hcd.c ohci_restart()
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I introduced this way back in 2.6.13 when adding the port lock logic.
This device talks out through different "ports" all at the same time, so
the lock logic was wrong, preventing any data from ever being sent
properly.
Thanks a lot to Bernhard Reiter <bernhard@intevation.de> for being
patient and helping with debugging this.
Cc: Bernhard Reiter <bernhard@intevation.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Based on Simon's original driver, with some minor code cleanups and
tidying by me.
Cc: Simon Schulz <simon@auctionant.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If serial_open() fails at the port assignment or mutex_lock_interruptible()
is interrupted, the 'serial' object will never be freed.
We should call kref_put() when those errors happens.
Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If the device is disconnected while serial_open() is executing and
either try_module_get() or the device specific open function fails, the
kref_put() call in the 'bailout_kref_put' label will free the memory
pointed out by 'port'.
The subsequent dereferences in the 'bailout_kref_put' label will be
invalid.
The fix is just to assure kref_put() is called after any 'port' usage.
Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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It's become apparent as machines get faster that the emagic kernel firmware
loaders (based on the ezusb loader) have a reset race. a 400MHz TiBook
never tripped it, but a 2GHz Pentium M seems to hit it about 30% of the
time. The bug is seen as a hung USB box and the kernel error:
drivers/usb/misc/emi62.c: emi62_load_firmware - error loading firmware:
error = -110
The patch below inserts a delay after deasserting reset to allow the box to
settle before a new command is issued. This affects only device startup.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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After recent changes, the USB keyboard as shipped with IBM pSeries systems
does not work anymore, unless the keyboard is replugged after reboot.
Adding this model to the blacklist fixes it.
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This adds the Sierra Wireless card to airprime.c.
I tested this on my laptop.
Signed-off-by: Ken Brush <ken@cgi101.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Razvan Gavril <razvan.g@plutohome.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds support for ACG Identification Technologies GmbH's HF
Dual ISO Reader (an RFID tag reader) to the ftdi_sio driver's device ID
table. The product ID was supplied by anotonios (anton at goto10 dot
org) on the ftdi-usb-sio-devel list and subsequently verified by myself
(Ian Abbott).
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In kernel 2.6.16, if a mounted storage device is removed, an oops happens
because ub supplies an interface device (and kobject) to the block layer,
but neglects to pin it. And apparently, the block layer expects its users
to pin device structures.
The code in ub was broken this way for years. But the bug was exposed only
by 2.6.16 when it started to call block_uevent on close, which traverses
device structures (kobjects actually).
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The choose_configuration() routine contains code the determine the
device's power source, so that configurations requiring external power
can be ruled out if the device is running on bus power. Unfortunately
it turns out that some devices have errors in their config descriptors
and other devices don't like the GET_DEVICE_STATUS request.
Since that information wasn't used for anything else, this patch (as673)
removes the code, leaving only a comment. It fixes bugzilla entry
#6448.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a small regression in USB controller power usage for many
OHCI controllers, notably including every non-PCI version of OHCI: on
those systems, the runtime autosuspend mechanism is no longer enabled.
The change moves to saner defaults. All root hubs are expected to handle
remote wakeup (and hence autosuspend), although drivers for buggy silicon
may override that default.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Teach "pegasus" to handle a few of the disconnect fault paths
without hundreds of usless syslog messages.
Handle the carrier check workqueue entry even if the driver has
not been opened.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Because of the way stringify works, using an expression
like 64 * 1024 for UDSL_MAX_BUF_SIZE results in 64 * 1024
turning up in the modinfo output instead of 65536. So use
65536 directly (this was the only way I found of fixing this).
Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The maximum possible bandwidth for a speedtouch modem is about 7Mbaud.
You can only get this by using isochronous urbs (enable_isoc=1) and
altsetting 3. With the current default altsetting of 2, the modem
maxes out at about 4Mbaud. So change the default altsetting to 3
when using isochronous urbs. It would be nice to base the altsetting
on the detected line speed, but that's hard given the current design.
Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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A loop on a power-lost resume path used the wrong index.
I suspect khubd has been working around such bugs.
Noticed by Andreas Mohr <andi@rhlx01.fht-esslingen.de>.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This reverts commit 56cf6504fc1c0c221b82cebc16a444b684140fb7.
Both Erik Mouw and Andrew Vasquez independently pinpointed this commit
as causing problems, where the slab cache for a driver is never released
(most obviously causing problems when immediately re-loading that
driver, resulting in a "kmem_cache_create: duplicate cache <xyz>"
message, but it can also cause other trouble).
James Bottomley dug into it, and reports:
"OK, here's the scoop. The problem patch adds a get of driverfs_dev in
add_disk(), but doesn't put it again until disk_release() (which occurs
on final put_disk() of the gendisk).
However, in SCSI, the driverfs_dev is the sdev_gendev. That means
there's a reference held on sdev_gendev until final disk put.
Unfortunately, we use the driver model driver_remove to trigger
del_gendisk (which removes the gendisk from visibility and decrements
the refcount), so we've introduced an unbreakable deadlock in the
reference counting with this.
I suggest simply reversing this patch at the moment. If Russell and
Jens can tell me what they're trying to do I'll see if there's another
way to do it."
so hereby the patch gets reverted, waiting for a better fix.
Cc: Jens Axboe <axboe@suse.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Erik Mouw <erik@harddisk-recovery.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3508/1: Update collie defconfig
[ARM] Fix thread struct allocator for SMP case
[ARM] Update mach-types
[ARM] Update versatile_defconfig
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Patch from Pavel Machek
Update collie defconfig to something that can bring closer-to-working
system to its user.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The ARM thread struct allocator is racy on SMP systems. Fix it by
turning it into a per-cpu based allocator. This also allows keeps
the cache cache warm for thread structs and kernel stacks.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Update versatile default configuration, enabling the AACI sound driver,
VFP and Versatile AB support.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* master.kernel.org:/home/rmk/linux-2.6-serial:
[SERIAL] 8250: add locking to console write function
[SERIAL] Remove unconditional enable of TX irq for console
[SERIAL] 8250: set divisor register correctly for AMD Alchemy SoC uart
[SERIAL] AMD Alchemy UART: claim memory range
[SERIAL] Clean up serial locking when obtaining a reference to a port
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x86 SMP breaks as a result of the previous change, we have no real
option other than to add locking to the 8250 console write function.
If an oops is in progress, try to acquire the lock. If we fail to
do so, continue anyway.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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A bug report from Gerd Hoffmann has highlighted that unconditionally
enabling the transmit interrupt at the end of console writes is very
bad.
In Gerd's case, it causes the test for buggy UARTs to give false
positives, incorrectly identifying ports as buggy when they are not.
Moreover, if we unconditionally enable the interrupt, and the port
is sharing it's interrupt with other ports, there is the very real
possibility that we'll cause an interrupt storm. (Not all ports use
OUT2 as an interrupt mask.)
Hence, revert part of f91a3715db2bb44fcf08cec642e68f919b70f7f4 and
all of f5968b37b3ad35b682b574b578843a0361218aff until a better solution
can be found.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Alchemy SoC uart have got a non-standard divisor register that needs some
special handling.
This patch adds divisor read/write functions with test and special
handling for Alchemy internal uart.
Signed-off-by: Jon Anders Haugum <jonah@omegav.ntnu.no>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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I've noticed that the 8250/Au1x00 driver (drivers/serial/8250_au1x00.c)
doesn't claim UART memory ranges and uses wrong (KSEG1-based) UART
addresses instead of the physical ones.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The locking for the uart_port is over complicated, and can be
simplified if we introduce a flag to indicate that a port is "dead"
and will be removed.
This also helps the validator because it removes a case of non-nested
unlock ordering.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NET_SCHED]: HFSC: fix thinko in hfsc_adjust_levels()
[IPV6]: skb leakage in inet6_csk_xmit
[BRIDGE]: Do sysfs registration inside rtnl.
[NET]: Do sysfs registration as part of register_netdevice.
[TG3]: Fix possible NULL deref in tg3_run_loopback().
[NET] linkwatch: Handle jiffies wrap-around
[IRDA]: Switching to a workqueue for the SIR work
[IRDA]: smsc-ircc: Minimal hotplug support.
[IRDA]: Removing unused EXPORT_SYMBOLs
[IRDA]: New maintainer.
[NET]: Make netdev_chain a raw notifier.
[IPV4]: ip_options_fragment() has no effect on fragmentation
[NET]: Add missing operstates documentation.
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When deleting the last child the level of a class should drop to zero.
Noticed by Andreas Mueller <andreas@stapelspeicher.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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inet6_csk_xit does not free skb when routing fails.
Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now that netdevice sysfs registration is done as part of
register_netdevice; bridge code no longer has to be tricky when adding
it's kobjects to bridges.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The last step of netdevice registration was being done by a delayed
call, but because it was delayed, it was impossible to return any error
code if the class_device registration failed.
Side effects:
* one state in registration process is unnecessary.
* register_netdevice can sleep inside class_device registration/hotplug
* code in netdev_run_todo only does unregistration so it is simpler.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tg3_run_loopback doesn't check that dev_alloc_skb() returns anything
useful.
Even if dev_alloc_skb() fails to return an skb to us we'll happily go
on and assume it did, so we risk dereferencing a NULL pointer. Much
better to fail gracefully by returning -ENOMEM than crashing here.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The test used in the linkwatch does not handle wrap-arounds correctly.
Since the intention of the code is to eliminate bursts of messages we
can afford to delay things up to a second. Using that fact we can
easily handle wrap-arounds by making sure that we don't delay things
by more than one second.
This is based on diagnosis and a patch by Stefan Rompf.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Stefan Rompf <stefan@loplof.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since sir_kthread.c pretty much duplicates the workqueue
functionality, we'd better switch. The SIR fsm has been merged into
sir_dev.c and thus sir_kthread.c is deleted.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Minimal PNP hotplug support for the smsc-ircc2 driver. A modular
driver will be modprobed via hotplug, but still bypasses driver model
probing.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch removes the following unused EXPORT_SYMBOL's:
- irias_find_attrib
- irias_new_string_value
- irias_new_octseq_value
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As agreed with Jean Tourrilhes, I am taking over IrDA maintainership.
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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From: Alan Stern <stern@rowland.harvard.edu>
This chain does it's own locking via the RTNL semaphore, and
can also run recursively so adding a new mutex here was causing
deadlocks.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix error point to options in ip_options_fragment(). optptr get a
error pointer to the ipv4 header, correct is pointer to ipv4 options.
Signed-off-by: Wei Yongjun <weiyj@soft.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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