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* tty: isicom: sort out the board init logicAlan Cox2009-12-121-30/+11
| | | | | | | | | Split this into two flags - INIT meaning the board is set up and ACTIVE meaning the board has ports open. Remove the broken HUPCL casing and push the counts somewhere sensible. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: isicom: switch to the new tty_port_open helperAlan Cox2009-12-121-67/+21
| | | | | | | | Trivial conversion in this case so might as well do it while testing the port_open design is right Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: tty_port: Add a kref object to the tty portAlan Cox2009-12-121-0/+18
| | | | | | | | Users of tty port need a way to refcount ports when hotplugging is involved. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: istallion: tty port open/close methodsAlan Cox2009-12-121-117/+60
| | | | | | | | Slice/dice/repeat as with the stallion driver this is just code shuffling and removal Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: stallion: Convert to the tty_port_open/close methodsAlan Cox2009-12-121-81/+35
| | | | | | | The driver is already structured this way so just slice and dice Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: tty_port: Move the IO_ERROR clearAlan Cox2009-12-121-1/+1
| | | | | | | | | | | | Some devices want to set IO_ERROR in their activate methods so that you can be handed a 'dead' port for operations like setserial. Thus we need to clear the flag before activate so that activate can choose to set the flag and still return 0. This is fine as the file handle/tty are not accessible to the user yet. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: tty_port: Add IO_ERROR bit handlingAlan Cox2009-12-121-1/+5
| | | | | | | | To propogate tty_port_open/close to a few other devices we need to start handling the IO_ERROR flag on the tty. We can do this pretty trivially. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: riscom8: switch to the tty_port_open APIAlan Cox2009-12-121-48/+41
| | | | | Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: tty_port: Change the buffer allocator lockingAlan Cox2009-12-121-4/+5
| | | | | | | | | | We want to be able to do this without regard for the activate/own open method being used which causes a problem using port->mutex. Add another mutex for now. Once everything uses port_open to do buffer allocs we can kill it back off Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: sdio_uart: Fix the locking on "func" for new codeAlan Cox2009-12-121-0/+4
| | | | | | | | | The new dtr_rts function didn't take the port->func lock as it should so add use of the lock there. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: sdio_uart: add modem functionalityAlan Cox2009-12-121-1/+32
| | | | | | | | | Add the POSIX block for carrier Linux TIOCMIWAIT functionality is still lacking from the driver. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: sdio_uart: Style fixesAlan Cox2009-12-121-11/+12
| | | | | | | | Running the current code through checkpatch shows a few bits of noise mostly but not entirely from before the changes. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: sdio_uart: Fix termios handlingAlan Cox2009-12-121-6/+0
| | | | | | | | Switching between two non standard baud rates fails because of the cflag test. Do as we did elsewhere and just kill the "optimisation". Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: sdio_uart: Switch to the open/close helpersAlan Cox2009-12-121-82/+119
| | | | | | | | | | Gets us proper tty semantics, removes some code and fixes up a few corner case races (hangup during open etc) Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* sdio_uart: Move the open lockAlan Cox2009-12-121-11/+9
| | | | | | | | | | When we move to the tty_port logic the port mutex will protect open v close v hangup. Move to this first in the existing open code so we have a bisection point. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* sdio_uart: refcount the tty objectsAlan Cox2009-12-121-17/+42
| | | | | | | | | The tty can go away underneath us, so we must refcount it. Do the naïve implementation initially. We will worry about startup shortly. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* sdio_uart: Fix oops caused by the previous changesetNicolas Pitre2009-12-121-1/+1
| | | | | | | | | | | | | | | | | | | Now... testing reveals that the very first patch "sdio_uart: use tty_port" causes a segmentation fault in sdio_uart_open(): Unable to handle kernel NULL pointer dereference at virtual address 00000084 pgd = dfb44000 [00000084] *pgd=1fb99031, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] PREEMPT last sysfs file: /sys/devices/platform/mvsdio/mmc_host/mmc0/mmc0:f111/uevent Modules linked in: CPU: 0 Not tainted (2.6.32-rc5-next-20091102-00001-gb36eae9 #10) PC is at sdio_uart_open+0x204/0x2cc [...] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* sdio_uart: use tty_portAlan Cox2009-12-121-18/+23
| | | | | | | | | Add a tty_port object to the sdio uart. For the moment just begin using the tty field of the port, as this is the critical one to clean up. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty_port: Move hupcl handlingAlan Cox2009-12-121-5/+8
| | | | | | | | | | | | | | | | | | | | Move the HUCPL handling from the end of close_port_start to the beginning of close_port_end. What this actually does is change the ordering from port shutdown port->dtr_rts to port->dtr_rts port shutdown Some hardware drops the physical connection on shutdown so we must perform the port operations before the shutdown. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Serial: Do not read IIR in serial8250_start_tx when UART_BUG_TXENIan Jackson2009-12-121-5/+3
| | | | | | | | | | | | | | | | | Do not read IIR in serial8250_start_tx when UART_BUG_TXEN Reading the IIR clears some oustanding interrupts so it is not safe. Instead, simply transmit immediately if the buffer is empty without regard to IIR. Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Jiri Kosina <jkosina@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Serial: pxa: work around Errata #75Uwe Kleine-König2009-12-121-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel(R) PXA27x Processor Family Specification Update (Nov 2005) says: E75. UART: Baud rate may not be programmed correctly on back-to-back writes. Problem: When programming the Divisor Latch registers, Low and High (DLL and DLH), with back-to-back writes, the second register write may not take effect. The result is an incorrect baud rate. Workaround: After programming the first Divisor Latch register, read and verify it before programming the second Divisor Latch register. This was hit when changing the baud rate from 115200 to 9600 while receiving characters at 9600 Bd. And fixed indention of some comments nearby. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* serial, 8250: calculate irqflags bitmask before loopAndré Goddard Rosa2009-12-121-6/+10
| | | | | | Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* serial: cascade needless conditionalsAndré Goddard Rosa2009-12-121-7/+5
| | | | | | Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* serial: fix NULL pointer dereferenceAndré Goddard Rosa2009-12-121-10/+11
| | | | | | | | | | | | If kzalloc() or alloc_tty_driver() fails, we call: put_tty_driver(normal = NULL). Then: put_tty_driver -> tty_driver_kref_put -> kref_put(&NULL->kref, ...) Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* opticon: Fix resume logicAlan Cox2009-12-121-1/+2
| | | | | | | | | | | Opticon now takes the right mutex to check the port status but the status check is done wrongly for the modern serial code, so fix it. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb_serial: Kill port mutexAlan Cox2009-12-122-3/+2
| | | | | | | | | | | The tty port has a port mutex used for all the port related locking so we don't need the one in the USB serial layer any more. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb_serial: Use the shutdown() operationAlan Cox2009-12-121-28/+11
| | | | | | | | | | | | | | As Alan Stern pointed out - now we have tty_port_open the shutdown method and locking allow us to whack the other bits into the full helper methods and provide a shutdown op which the tty port code will synchronize with setup for us. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty_port: coding style cleaning passAlan Cox2009-12-121-12/+13
| | | | | | | | | | Mind the hoover wire... Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty_port: add "tty_port_open" helperAlan Cox2009-12-122-30/+55
| | | | | | | | | | | | For the moment this just moves the USB logic over and fixes the 'what if we open and hangup at the same time' race noticed by Oliver Neukum. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: stallion: kill BKL ioctlAlan Cox2009-12-121-6/+7
| | | | | | Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: istallion: Kill off the BKL ioctlAlan Cox2009-12-121-4/+4
| | | | | | | | | Fairly trivial as the BKL push down into the methods has already been done. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: esp: remove broken driverAlan Cox2009-12-123-2547/+0
| | | | | | | | | | The ESP driver has been marked broken for years. It's an old ISA device that clearly nobody cares about any more. Remove it Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: const: constify remaining tty_operationsAlexey Dobriyan2009-12-123-3/+3
| | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: adding EEH handlersBreno Leitao2009-12-122-1/+47
| | | | | | | | | | | Adding EEH handlers for the serial jsm driver. This patch adds the PCI error handlers and also register them to be called when a error is detected. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Acked-by: Scott Kilau <scottk@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: removing the field jsm_board->intr_countBreno Leitão2009-12-122-3/+0
| | | | | | | | | | | | Currently there is a field in the jsm_board structure to cont the number of interrupt that the card recevived, but it's not working properly when the IRQ line is shared, and also nowhere else this field is used. So, This patch is removing it. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <Scott.Kilau@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: Removing unused jsm_channel->ch_wopen fieldBreno Leitão2009-12-121-2/+0
| | | | | | | | | | Currently the jsm_channel->ch_wopen field is defined and never used. So, this patch removes it. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <Scott.Kilau@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: Remove ch_cpstime fieldBreno Leitão2009-12-121-2/+0
| | | | | | | | | | Currently the field jsm_channel->ch_cpstime is defined but never used, so this patch removes it. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <Scott.Kilau@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: removing ch_old_baud fieldBreno Leitão2009-12-123-6/+0
| | | | | | | | | | | Currently the field jsm_channel->ch_old_baud is not used, just assigned in a lot of places but never used. This patches removes this field. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <scottk@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: remove the ch_custom_speed fieldBreno Leitão2009-12-122-5/+0
| | | | | | | | | | Currently the ch_custom_speed field exists but is never used, so, this patch removes it. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <scottk@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: Rewriting a bad log messageBreno Leitão2009-12-121-1/+1
| | | | | | | | | | | | Actually jsm displays "Device Added" 8 times (for a 8 port device). This silly patch just makes things more informative, showing the port (instead of the device) that was added. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <scottk@digi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* jsm: IRQ handlers doesn't need to have IRQ_DISABLED enabledBreno Leitão2009-12-121-1/+1
| | | | | | | | | | | | | | | | Currently jsm is showing the following message when loaded: IRQ 432/JSM: IRQF_DISABLED is not guaranteed on shared IRQs It's because the request_irq() is called using IRQF_DISABLED and IRQF_SHARED. Actually there is no need to use IRQF_DISABLED in this driver. Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com> Cc: Scott Kilau <scottk@digi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'bugfix' of ↵Linus Torvalds2009-12-104-58/+68
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: try harder to balloon up under memory pressure. Xen balloon: fix totalram_pages counting. xen: explicitly create/destroy stop_machine workqueues outside suspend/resume region. xen: improve error handling in do_suspend. xen: don't leak IRQs over suspend/resume. xen: call clock resume notifier on all CPUs xen: use iret for return from 64b kernel to 32b usermode xen: don't call dpm_resume_noirq() with interrupts disabled. xen: register runstate info for boot CPU early xen: register runstate on secondary CPUs xen: register timer interrupt with IRQF_TIMER xen: correctly restore pfn_to_mfn_list_list after resume xen: restore runstate_info even if !have_vcpu_info_placement xen: re-register runstate area earlier on resume. xen: wait up to 5 minutes for device connetion xen: improvement to wait_for_devices() xen: fix is_disconnected_device/exists_disconnected_device xen/xenbus: make DEVICE_ATTR()s static
| * xen: try harder to balloon up under memory pressure.Ian Campbell2009-12-041-26/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently if the balloon driver is unable to increase the guest's reservation it assumes the failure was due to reaching its full allocation, gives up on the ballooning operation and records the limit it reached as the "hard limit". The driver will not try again until the target is set again (even to the same value). However it is possible that ballooning has in fact failed due to memory pressure in the host and therefore it is desirable to keep attempting to reach the target in case memory becomes available. The most likely scenario is that some guests are ballooning down while others are ballooning up and therefore there is temporary memory pressure while things stabilise. You would not expect a well behaved toolstack to ask a domain to balloon to more than its allocation nor would you expect it to deliberately over-commit memory by setting balloon targets which exceed the total host memory. This patch drops the concept of a hard limit and causes the balloon driver to retry increasing the reservation on a timer in the same manner as when decreasing the reservation. Also if we partially succeed in increasing the reservation (i.e. receive less pages than we asked for) then we may as well keep those pages rather than returning them to Xen. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stable Kernel <stable@kernel.org>
| * Xen balloon: fix totalram_pages counting.Gianluca Guida2009-12-041-3/+4
| | | | | | | | | | | | | | | | | | | | Change totalram_pages when a single page is added/removed to the ballooned list. This avoid totalram_pages to be set erroneously to max_pfn at boot. Signed-off-by: Gianluca Guida <gianluca.guida@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org>
| * xen: explicitly create/destroy stop_machine workqueues outside ↵Ian Campbell2009-12-031-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | suspend/resume region. I have observed cases where the implicit stop_machine_destroy() done by stop_machine() hangs while destroying the workqueues, specifically in kthread_stop(). This seems to be because timer ticks are not restarted until after stop_machine() returns. Fortunately stop_machine provides a facility to pre-create/post-destroy the workqueues so use this to ensure that workqueues are only destroyed after everything is really up and running again. I only actually observed this failure with 2.6.30. It seems that newer kernels are somehow more robust against doing kthread_stop() without timer interrupts (I tried some backports of some likely looking candidates but did not track down the commit which added this robustness). However this change seems like a reasonable belt&braces thing to do. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org>
| * xen: improve error handling in do_suspend.Ian Campbell2009-12-031-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing error handling has a few issues: - If freeze_processes() fails it exits with shutting_down = SHUTDOWN_SUSPEND. - If dpm_suspend_noirq() fails it exits without resuming xenbus. - If stop_machine() fails it exits without resuming xenbus or calling dpm_resume_end(). - xs_suspend()/xs_resume() and dpm_suspend_noirq()/dpm_resume_noirq() were not nested in the obvious way. Fix by ensuring each failure case goto's the correct label. Treat a failure of stop_machine() as a cancelled suspend in order to follow the correct resume path. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org>
| * xen: don't leak IRQs over suspend/resume.Ian Campbell2009-12-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On resume irq_info[*].evtchn is reset to 0 since event channel mappings are not preserved over suspend/resume. The other contents of irq_info is preserved to allow rebind_evtchn_irq() to function. However when a device resumes it will try to unbind from the previous IRQ (e.g. blkfront goes blkfront_resume() -> blkif_free() -> unbind_from_irqhandler() -> unbind_from_irq()). This will fail due to the check for VALID_EVTCHN in unbind_from_irq() and the IRQ is leaked. The device will then continue to resume and allocate a new IRQ, eventually leading to find_unbound_irq() panic()ing. Fix this by changing unbind_from_irq() to handle teardown of interrupts which have type!=IRQT_UNBOUND but are not currently bound to a specific event channel. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org>
| * xen: don't call dpm_resume_noirq() with interrupts disabled.Jeremy Fitzhardinge2009-12-031-4/+3
| | | | | | | | | | | | | | | | | | dpm_resume_noirq() takes a mutex, so it can't be called from a no-interrupt context. Don't call it from within the stop-machine function, but just afterwards, since we're resuming anyway, regardless of what happened. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org>
| * xen: wait up to 5 minutes for device connetionPaolo Bonzini2009-12-031-4/+16
| | | | | | | | | | | | | | | | | | | | Increases the device timeout from 10s to 5 minutes, giving the user a visual indication during that time in case there are problems. The patch is a backport of changesets 144 and 150 in the Xenbits tree. Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * xen: improvement to wait_for_devices()Paolo Bonzini2009-12-031-3/+6
| | | | | | | | | | | | | | | | | | | | | | When printing a warning about a timed-out device, print the current state of both ends of the device connection (i.e., backend as well as frontend). This backports half of changeset 146 from the Xenbits tree. Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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