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path: root/drivers/s390/crypto (follow)
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2009-10-06[S390] zcrypt: Improve some commentsFelix Beck1-3/+6
Improve the comments for switch cases without a break. This fixes some warnings of a code checker tool. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-10-06[S390] zcrypt: Fix sparse warning.Felix Beck1-2/+2
Do not shadow earlier symbol. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-09-22[S390] zcrypt: Do not add/remove devices in s/r callbacksFelix Beck1-11/+29
Devices are no longer removed or added in the suspend and resume callbacks. Instead they are marked unregistered in suspend. In the resume callback the ap_scan_bus method is scheduled. The bus scan function will remove the old device and add new ones. This way all the device handling will be done in only one function. Additionaly the case where the domain might change during suspend/resume is caught. In that case the devices qid needs to re-calculated in order of having it found by the scan method. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-09-11[S390] zcrypt: Free ap_device if dev_set_name fails.Felix Beck1-2/+5
If dev_set_name fails during scanning the AP bus, the reserved memory has to be freed. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-09-11[S390] zcrypt: Use spin_lock_bh in suspend callbackFelix Beck1-2/+6
Fix lock dependency warning. inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. bash/1442 [HC0[0]:SC0[0]:HE1:SE1] takes: (&ap_dev->lock){+.?...}, at: [<000003e001280404>] __ap_poll_device+0x40/0x3e8 [ap] {IN-SOFTIRQ-W} state was registered at: [<000000000017f094>] __lock_acquire+0xb78/0x182c [<000000000017fe8e>] lock_acquire+0x146/0x178 [<0000000000549cf2>] _spin_lock+0x5a/0x98 [<000003e001280404>] __ap_poll_device+0x40/0x3e8 [ap] [<000003e001280afe>] ap_poll_all+0xaa/0x1a4 [ap] [<000000000014fa82>] tasklet_action+0xfe/0x1f4 [<0000000000150a56>] __do_softirq+0x116/0x284 [<0000000000111058>] do_softirq+0xe4/0xe8 [<00000000001504ba>] irq_exit+0xba/0xd8 [<00000000003dd04a>] do_IRQ+0x176/0x1fc [<000000000011823c>] io_return+0x0/0x8 [<0000004bfbfd2c0e>] 0x4bfbfd2c0e Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-09-11[S390] proper use of device registerSebastian Ott1-1/+1
Don't use kfree directly after device registration started. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-24[S390] zcrypt: fix scheduling of hrtimer ap_poll_timerFelix Beck1-2/+7
Every time a request is enqueued or there is some work outstanding from the ap_tasklet, the ap_poll_timer is scheduled again. Unfortunately it was permanently called. It looked as if it was started in the past and thus imediately expired. This has been changed. First it is checked if the hrtimer is already expired. Then the expiring time is forwarded and the timer restarted. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-06-22[S390] ap/zcrypt: Suspend/Resume ap bus and zcryptFelix Beck1-2/+83
Add Suspend/Resume support to ap bus and zcrypt. All enhancements are done in the ap bus. No changes in the crypto card specific part are necessary. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] use kzfree()Johannes Weiner1-2/+1
Use kzfree() instead of memset() + kfree(). Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] list usage cleanup in s390Eric Sesterhenn1-4/+2
Trivial cleanup, list_del(); list_add{,_tail}() is equivalent to list_move{,_tail}(). Semantic patch for coccinelle can be found at www.cccmz.de/~snakebyte/list_move_tail.spatch Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-01-06s390: remove s390_root_dev_*()Mark McLoughlin1-4/+3
Replace s390_root_dev_register() with root_device_register() etc. [Includes fix from Cornelia Huck] Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-12-25[S390] convert ap_bus printks to pr_xxx macros.Martin Schwidefsky1-3/+7
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25[S390] drivers/s390/crypto: Move dereference to after IS_ERR testJulia Lawall4-12/+28
If reply is ERR_PTR(...), then it should not be dereferenced, so I have moved the dereference from the declaration to after the IS_ERR test. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @match exists@ expression x, E; identifier fld; position p1,p2; @@ ( x = E; | x = E | x@p1->fld ... when != x = E IS_ERR(x@p2) ... when any ) @other_match exists@ expression match.x, E1, E2; position match.p1,match.p2; @@ x = E1 ... when != x = E2 when != x@p1 x@p2 @ script:python depends on !other_match@ p1 << match.p1; p2 << match.p2; @@ print "* file %s dereference %s test %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25[S390] ap: Minor code beautification.Christian Maaser1-14/+14
Changed some symbol names for a better and clearer code. Signed-off-by: Christian Maaser <cmaaser@de.ibm.com> Signed-off-by: Felix Beck <beckf@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25[S390] zcrypt: Use of Thin InterruptsFelix Beck2-4/+176
When the machine supports AP adapter interrupts polling will be switched off at module initialization and the driver will work in interrupt mode. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-17Merge commit 'linus/master' into merge-linusArjan van de Ven1-2/+2
Conflicts: arch/x86/kvm/i8254.c
2008-10-10[S390] bus_id -> dev_set_name() changesCornelia Huck1-2/+2
Convert most s390 users setting bus_id to dev_set_name(). css and ccw busses are deferred since they need some special treatment. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-09-05hrtimer: convert s390 to the new hrtimer apisArjan van de Ven1-3/+3
In order to be able to do range hrtimers we need to use accessor functions to the "expire" member of the hrtimer struct. This patch converts s390 to these accessors. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2008-07-14Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6Linus Torvalds1-0/+3
* 'bkl-removal' of git://git.lwn.net/linux-2.6: (146 commits) IB/umad: BKL is not needed for ib_umad_open() IB/uverbs: BKL is not needed for ib_uverbs_open() bf561-coreb: BKL unneeded for open() Call fasync() functions without the BKL snd/PCM: fasync BKL pushdown ipmi: fasync BKL pushdown ecryptfs: fasync BKL pushdown Bluetooth VHCI: fasync BKL pushdown tty_io: fasync BKL pushdown tun: fasync BKL pushdown i2o: fasync BKL pushdown mpt: fasync BKL pushdown Remove BKL from remote_llseek v2 Make FAT users happier by not deadlocking x86-mce: BKL pushdown vmwatchdog: BKL pushdown vmcp: BKL pushdown via-pmu: BKL pushdown uml-random: BKL pushdown uml-mmapper: BKL pushdown ...
2008-07-14[S390] Cleanup zcrypt printk messages.Felix Beck7-130/+17
Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-07-14[S390] zcrypt: Add additional card IDs to CEX2C and CEX2ARalph Wuerthner3-0/+4
Add support for new micro code load of CEX2C and CEX2A adapters, which uses different IDs. This patch just adds the IDs to the existing drivers. Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-07-14[S390] ap: Use high-resolution timer for pollingFelix Beck1-10/+53
The ap poll mechanism is converted to use a high-resolution timer for polling. This allows more specific polling. With this a new sysfs attribute is introduced to specify the polling rate in nanoseconds. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-06-20crypto-zcrypt_api: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-04-17[S390] zcrypt: Comments and kernel-doc cleanupFelix Beck7-95/+184
Comments, which suggested to be kernel-doc but were not in the right formatting, have been corrected. Additionally some minor cleanup in the comments has been done. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] replace remaining __FUNCTION__ occurrencesHarvey Harrison1-4/+4
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] zcrypt: add support for large random numbersRalph Wuerthner3-1/+326
This patch allows user space applications to access large amounts of truly random data. The random data source is the build-in hardware random number generator on the CEX2C cards. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-03-05[S390] zcrypt: fix ap_device_list handlingRalph Wuerthner1-5/+7
In ap_device_probe() we can add the new ap device to the internal device list only if the device probe function successfully returns. Otherwise we might end up with an invalid device in the internal ap device list. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-09[S390] zcrypt: Do not start ap poll thread per defaultFelix Beck1-2/+2
Do not start ap poll thread per default to increase perfomance with z/VM. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds1-10/+4
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (75 commits) PM: merge device power-management source files sysfs: add copyrights kobject: update the copyrights kset: add some kerneldoc to help describe what these strange things are Driver core: rename ktype_edd and ktype_efivar Driver core: rename ktype_driver Driver core: rename ktype_device Driver core: rename ktype_class driver core: remove subsystem_init() sysfs: move sysfs file poll implementation to sysfs_open_dirent sysfs: implement sysfs_open_dirent sysfs: move sysfs_dirent->s_children into sysfs_dirent->s_dir sysfs: make sysfs_root a regular directory dirent sysfs: open code sysfs_attach_dentry() sysfs: make s_elem an anonymous union sysfs: make bin attr open get active reference of parent too sysfs: kill unnecessary NULL pointer check in sysfs_release() sysfs: kill unnecessary sysfs_get() in open paths sysfs: reposition sysfs_dirent->s_mode. sysfs: kill sysfs_update_file() ...
2007-10-12Driver core: change add_uevent_var to use a structKay Sievers1-10/+4
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12[S390] zcrypt: fix PCIXCC/CEX2C error recoveryRalph Wuerthner1-2/+5
Symptom: zcrypt fails by setting all PCIXCC/CEX2C cards offline for a certain type of invalid keys. Problem: zcrypt does not handle rc=12/rs=769 request responses correctly Solution: modify convert_type86_ica() to handle these error codes correctly Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12[S390] zcrypt: fix ap_reset_domain()Ralph Wuerthner1-2/+3
Resetting of a all queues within a domain requires that a domain must be selected first. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12[S390] zcrypt: remove duplicated struct CPRBX definitionRalph Wuerthner2-46/+1
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
2007-10-12[S390] zcrypt: make init/exit functions static.Heiko Carstens1-2/+2
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-07-10[S390] zcrypt: fix request timeout handlingRalph Wuerthner6-90/+140
Under very high load zcrypt requests may timeout while waiting on the request queue. Modify zcrypt that timeouts are based on crypto adapter responses. A timeout occurs only if a crypto adapter does not respond within a given time frame to sumitted requests. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-04-27uevent: use add_uevent_var() instead of open coding itEric Rannaud1-15/+13
Make use of add_uevent_var() instead of (often incorrectly) open coding it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Eric Rannaud <eric.rannaud@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-26[S390] zcrypt: Fix ap_poll_requests counter in lost requests error path.Ralph Wuerthner1-0/+4
In the unlikely event that an AP device lost requests, don't forget to update the ap_poll_requests counter too. Same must happen in case an AP device is removed while there are still outstanding requests. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-03-26[S390] zcrypt: Fix possible dead lock in AP bus module.Ralph Wuerthner1-13/+13
If a AP device is unconfigured __ap_poll_all() will call device_unregister() in software interrupt context which can cause dead locks. To fix this the device will be only marked as unconfigured and the device_unregister() call will be done later by either ap_scan_bus() or ap_queue_message() in process context. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-03-19[S390] zcrypt: fix possible race when unloading zcrypt driver modulesRalph Wuerthner1-6/+6
Move try_module_get() call into spin protected block to prevent zcrypt driver module unload while submitting a request to driver. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-03-19[S390] zcrypt: fix possible dead lock in AP bus moduleRalph Wuerthner2-7/+24
AP bus module uses bus_for_each_dev() in software interrupt context to poll for completed requests which might cause dead locks. Solution: use private AP device list for polling in software interrupt context. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-12[PATCH] mark struct file_operations const 5Arjan van de Ven1-1/+1
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] proc: remove useless (and buggy) ->nlink settingsAlexey Dobriyan1-1/+0
Bug: pnx8550 code creates directory but resets ->nlink to 1. create_proc_entry() et al will correctly set ->nlink for you. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Corey Minyard <minyard@acm.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Greg KH <greg@kroah.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: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-05[S390] Avoid excessive inlining.Heiko Carstens3-16/+16
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05[S390] Get rid of a lot of sparse warnings.Heiko Carstens2-3/+4
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-15[S390] zcrypt: module unload fixes.Ralph Wuerthner1-2/+12
Add code to reset all queues for a domain and add missing tasklet_kill call to ap bus module exit code. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-13[PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day3-5/+5
Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08[S390] add reset call handler to the ap bus.Ralph Wuerthner1-0/+17
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-06[PATCH] More work_struct induced breakage (s390)Al Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04[S390] Add MODALIAS= to the uevent for the ap bus.Cornelia Huck1-1/+9
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-27[S390] Improve AP bus device removal.Ralph Wuerthner1-1/+6
Added a call to device_unregister() in ap_scan_bus() to actively remove unavailable AP bus devices with every bus scan. Previously devices were only removed in ap_queue_message() or __ap_poll_all(). Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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