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* Merge tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds2012-10-014-16/+48
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull TTY changes from Greg Kroah-Hartman: "As we skipped the merge window for 3.6-rc1 for the tty tree, everything is now settled down and working properly, so we are ready for 3.7-rc1. Here's the patchset, it's big, but the large changes are removing a firmware file and adding a staging tty driver (it depended on the tty core changes, so it's going through this tree instead of the staging tree.) All of these patches have been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up more-or-less trivial conflicts in - drivers/char/pcmcia/synclink_cs.c: tty NULL dereference fix vs tty_port_cts_enabled() helper function - drivers/staging/{Kconfig,Makefile}: add-add conflict (dgrp driver added close to other staging drivers) - drivers/staging/ipack/devices/ipoctal.c: "split ipoctal_channel from iopctal" vs "TTY: use tty_port_register_device" * tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (235 commits) tty/serial: Add kgdb_nmi driver tty/serial/amba-pl011: Quiesce interrupts in poll_get_char tty/serial/amba-pl011: Implement poll_init callback tty/serial/core: Introduce poll_init callback kdb: Turn KGDB_KDB=n stubs into static inlines kdb: Implement disable_nmi command kernel/debug: Mask KGDB NMI upon entry serial: pl011: handle corruption at high clock speeds serial: sccnxp: Make 'default' choice in switch last serial: sccnxp: Remove mask termios caps for SW flow control serial: sccnxp: Report actual baudrate back to core serial: samsung: Add poll_get_char & poll_put_char Powerpc 8xx CPM_UART setting MAXIDL register proportionaly to baud rate Powerpc 8xx CPM_UART maxidl should not depend on fifo size Powerpc 8xx CPM_UART too many interrupts Powerpc 8xx CPM_UART desynchronisation serial: set correct baud_base for EXSYS EX-41092 Dual 16950 serial: omap: fix the reciever line error case 8250: blacklist Winbond CIR port 8250_pnp: do pnp probe before legacy probe ...
| * Merge 3.6-rc6 into tty-nextGreg Kroah-Hartman2012-09-162-6/+3
| |\ | | | | | | | | | | | | | | | This pulls in the fixes in 3.6-rc6 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * \ Merge 3.6-rc3 into tty-nextGreg Kroah-Hartman2012-08-271-0/+2
| |\ \ | | | | | | | | | | | | | | | | | | | | This picks up all of the different fixes in Linus's tree that we also need here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | TTY: tty3270, add tty installJiri Slaby2012-08-131-9/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This has two outcomes: * we give the TTY layer a tty_port * we do not find the info structure every time open is called on that tty In this case ->install is the only thing we want to do. We do not need ->open at all. See the tty->count > 1 check. And since we take a reference in ->install, we need also ->cleanup to drop the reference to a view. Final note, see that we leave raw3270_find_view in place. It is because views are removed even from module_exit. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | TTY: con3215, add tty installJiri Slaby2012-08-131-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This has two outcomes: * we give the TTY layer a tty_port * we do not find the info structure every time open is called on that tty Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | TTY: con3215, unset raw3215[line]Jiri Slaby2012-08-131-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | raw3215[line] is set in probe, but not unset in remove. This will lead to random crashes if the device is removed and the corresponding tty opened later. open would dereference freed memory. So set raw3215[line] to NULL in remove to fix that. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | TTY: use tty_port_link_deviceJiri Slaby2012-08-132-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So now for those drivers that can use neither tty_port_install nor tty_port_register_driver but still have tty_port available before tty_register_driver we use newly added tty_port_link_device. The rest of the drivers that still do not provide tty_struct <-> tty_port link will have to be converted to implement tty->ops->install. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | TTY: automatically create nodes for some driversJiri Slaby2012-08-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This looks like it was a mistake not to create device nodes for these drivers. Let us create them from now on. It will be necessary to call tty_register_device some way, either by tty_register_driver implicitly or to call tty_register_device proper. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: netdev@vger.kernel.org Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Cc: linux-cris-kernel@axis.com Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | TTY: tty3270, free tty driver properlyJiri Slaby2012-08-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On module unload, in tty3270_exit, we forgot to free the tty driver. Add there a call to put_tty_driver. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | s390/dasd: check count address during online settingStefan Haberland2012-09-261-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A common way to prepare a z/VM mini disk is to format the real device with a z/VM tool like CPFMTXA and then define a mini disk that excludes the first cylinder, i.e. the cylinder 0 of the virtual disk is located at cylinder 1 of the real device. The DASD device driver will recognize such a mini disk as formatted, as the uniform record layout on the disk matches that of an LDL formatted device. However, the cylinder value in the 'count' field of the ECKD records matches the geometry of the real device, and not that of the mini disk, so I/O requests will fail with 'record not found' errors. To make the mini disk usable, it needs to be formatted with a tool like dasdfmt. To enable tools like distribution installation tools to recognize this situation, the DASD device driver should report such a mini disk as 'not formatted'. To this end we need to extend the device recognition code to check not just for proper record sizes, but also for proper cylinder/head/record values. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Reviewed-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | drivers/s390/char/monreader.c: fix error return codePeter Senna Tschudin2012-09-261-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390: add uninitialized_var() to suppress false positive compiler warningsHeiko Carstens2012-09-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of these: arch/s390/kernel/smp.c:134:19: warning: ‘status’ may be used uninitialized in this function [-Wuninitialized] arch/s390/mm/pgtable.c:641:10: warning: ‘table’ may be used uninitialized in this function [-Wuninitialized] arch/s390/mm/pgtable.c:644:12: warning: ‘page’ may be used uninitialized in this function [-Wuninitialized] drivers/s390/cio/cio.c:1037:14: warning: ‘schid’ may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/tape: remove even more tape block leftoversHeiko Carstens2012-09-262-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix this compile error: In file included from drivers/s390/char/tape_core.c:29:0: drivers/s390/char/tape_std.h:103:66: warning: ‘struct request’ declared inside parameter list [enabled by default] Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/ap_bus: add missing ifdefHeiko Carstens2012-09-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of this compile warning for CONFIG_32BIT: drivers/s390/crypto/ap_bus.c:168:12: warning: ‘ap_configuration_available’ defined but not used [-Wunused-function] Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/qdio: fix truncated debug output of hex valuesJan Glauber2012-09-261-13/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calling debug_event the s390 debug feature only logs up to buf_size bytes of the debug view. If debug_event is called with more bytes than buf_size the additional data is ignored and not logged in the debug view. Use multiple calls to debug_event if the length exceeds buf_size. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/zcryt: Handle AP configuration changesHolger Dengler2012-09-266-9/+201
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Detect external AP bus configuration changes and request an AP device rescan. Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/vmlogrdr: change return value from -ENOSYS to -EOPNOTSUPPHeiko Carstens2012-09-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changing the return value of vmlogrdr_open() to -EOPNOTSUPP if O_NONBLOCK is specified shouldn't have any negative side effects. Any existing user wouldn't specify that flag since it wouldn't work anyway. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/etr,stp: use -EOPNOTSUPP instead of -ENOSYSHeiko Carstens2012-09-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Change -ENOSYS to -EOPNOTSUPP. Return value is used only internally. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/sclp: use -EOPNOTSUPP instead of -ENOSYSHeiko Carstens2012-09-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The return value was only internally used, so it's ok to change. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/dasd: fix return value for non-existent ioctlsHeiko Carstens2012-09-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | For non-existent ioctls -ENOTTY should be returned. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/sysinfo,stsi: change return code handlingHeiko Carstens2012-09-261-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change return code handling of the stsi() function: In case function code 0 was specified the return value is the current configuration level (already shifted). That way all the code that actually copied the stsi_0() function can go away. Otherwise the return value is 0 (success) or negative to indicate an error (currently only -EOPNOTSUPP). Also stsi() is no longer an inline function. The function is not performance critical, but every caller would generate an exception table entry for this function. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/3270: drop unused spinlock from struct con3270Jean Delvare2012-09-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I was checking why this spinlock was never initialized, but it turns out it's not used anywhere, so we can drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/scm: reorder scm_removeSebastian Ott2012-09-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not reset drvdata before the block device is cleaned up. With a non-empty block queue drvdata could be accessed. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/scm: remove superfluous lockSebastian Ott2012-09-262-14/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the spinlock from struct scm_device. drvdata and attributes are guarded via device_lock. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/scm_block: force cluster writesSebastian Ott2012-09-265-3/+310
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Force writes to Storage Class Memory (SCM) to be in done in clusters. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390: add scm block driverSebastian Ott2012-09-265-0/+597
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Block device driver for Storage Class Memory (SCM). This driver provides a block device interface for each available SCM increment. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/eadm_sch: add support for irq statisticsSebastian Ott2012-09-261-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for EADM interrupt statistics in /proc/interrupts. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/cio: add eadm subchannel driverSebastian Ott2012-09-263-0/+419
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver allows usage of EADM subchannels. EADM subchannels act as a communication vehicle for SCM increments. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390: add scm notificationSebastian Ott2012-09-263-1/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Detect an scm change notification in store event information. Update affected scm devices and notify their drivers. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390: add scm bus driverSebastian Ott2012-09-262-0/+272
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Bus driver to manage Storage Class Memory. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/chsc: implement store SCM informationSebastian Ott2012-09-262-0/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | chsc_scm_info will be used to detect all available increments of storage class memory. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390: add eadm related structuresSebastian Ott2012-09-261-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add structures to be used by the eadm subchannel driver. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390: add eadm facility bitsSebastian Ott2012-09-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the eadm facility bits to the css characteristics and move them to a new header. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/css: export css_sched_sch_todoSebastian Ott2012-09-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow subchannel drivers build as a module to schedule subchannel work. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/zcrypt: Add support for CEX4 crypto cardHolger Dengler2012-09-265-16/+170
| | | | | | | | | | | | | | | | | | | | | | | | | | | | New zcrypt module supports IBM CryptoExpress 4 cards. Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/zcrypt: Separate msgtype implementation from card modules.Holger Dengler2012-09-2610-1124/+1707
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Msgtype implementations are now separated from card specific modules and can be dynamically registered. Existing msgtype implementations are restructured in modules. Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/ap: Add functiton facility information as AP device attribute.Holger Dengler2012-09-263-22/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the function facility information as new ap_device and sysfs attribute. Also make the number of requests in device queue and in device driver queue accessible in sysfs. Reviewed-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/ap: configuration information exploitationHolger Dengler2012-09-262-15/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Query AP configuration information. Improve performance of AP bus scans by skipping AP device probing, if the AP deviec is not configured. Reviewed-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/dasd: fix read unit address configuration loopStefan Haberland2012-09-171-1/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Read unit address is done for all devices during online processing to read out LCU features. This is also done after disconnect/connect a LCU. Some older storage hardware does not provide the capability to read unit address configuration. This leads to a loop trying to read unit address configuration every 30 seconds. The device is still operational but logs are flooded with error messages. Fix the loop by recognizing a command reject saying that the suborder for ruac is not supported. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/dasd: fix pathgroup raceStefan Haberland2012-09-172-7/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a new path is available we need to verify the path data. If it is the first path for a device the stop bits are removed after path verification. If a pathgroup is established we need to set system characteristics for the lcu. Therefore I/O has to be started. If the device is stopped the set system characteristics worker may block the path verification worker and the device is blocked. Turn on failfast for set system characteristics CQR to prevent a deadlock with the path verification worker. If a pathgroup is established on a device that is not in use trigger path verification. Maybe we were not informed about a working path. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Reviewed-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/cio: invalidate cdev pointer before deregistrationSebastian Ott2012-09-061-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure that the cdev pointer for IO subchannels is set to NULL when we deregister the device (and release its last reference). This will fix a bug were another process operates on an already freed ccw device. Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/cio: fix IO subchannel event raceSebastian Ott2012-09-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the subchannel event function is called from IRQ context and we observe that the subchannel in question is gone we flag the attached device as not operational and schedule the event function to be called again from process context where the subchannel gets deregistered. However if the subchannel reappeared at the time the event function gets called from process context we would do nothing and leave the device in not operational state. Recognize this case in sch_get_action and trigger reexamination of the subchannel/device. Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | s390/dasd: move wake_up callSebastian Ott2012-09-061-3/+3
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure that all work is done when the process waiting for a dasd state change is woken up. With this change it is save to assume that after a userspace triggered state change and a udev settle invocation there are no unexpected users of a dasd device. Acked-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | s390/dasd: fix ioctl return valueHeiko Carstens2012-08-282-6/+3
| |/ |/| | | | | | | | | | | | | | | For unimplemented ioctls the dasd driver should return -ENOTTY. Reported-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Acked-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | s390/sclp_sdias: Add missing break and "fall through"Michael Holzheu2012-08-081-0/+2
|/ | | | | | | | | | | | | If the last block of the HSA is read, EVSTATE_ALL_STORED is returned by SCLP. Because of a missing break in the switch statement two trace entries are written in this case: "all stored" and "part stored". This patch adds the missing break and also adds a "fall through" comment to improve the readability. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Reported-by: David A Gilbert <DavidAGilbert@uk.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-07-262-28/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates and fixes from David Miller: 1) Reinstate the no-ref optimization for input route lookups in ipv4 to fix some routing cache removal perf regressions. 2) Make TCP socket pre-demux work on ipv6 side too, from Eric Dumazet. 3) Get RX hash value from correct place in be2net driver, from Sarveshwar Bandi. 4) Validation of FIB cached routes missing critical check, from Eric Dumazet. 5) EEH support in mlx4 driver, from Kleber Sacilotto de Souza. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (23 commits) ipv6: Early TCP socket demux ipv4: Fix input route performance regression. pch_gbe: vlan skb len fix pch_gbe: add extra clean tx pch_gbe: fix transmit watchdog timeout ixgbe: fix panic while dumping packets on Tx hang with IOMMU be2net: Fix to parse RSS hash from Receive completions correctly. net/mlx4_en: Limit the RFS filter IDs to be < RPS_NO_FILTER hyperv: Add error handling to rndis_filter_device_add() hyperv: Add a check for ring_size value ipv4: rt_cache_valid must check expired routes net/pch_gpe: Cannot disable ethernet autonegation qeth: repair crash in qeth_l3_vlan_rx_kill_vid() netiucv: cleanup attribute usage net: wiznet add missing HAS_IOMEM dependency be2net: Missing byteswap in be_get_fw_log_level causes oops on PowerPC mlx4: Add support for EEH error recovery cdc-ncm: tag Ericsson WWAN devices (eg F5521gw) with FLAG_WWAN wanmain: comparing array with NULL caif: fix NULL pointer check ...
| * qeth: repair crash in qeth_l3_vlan_rx_kill_vid()frank.blaschka@de.ibm.com2012-07-251-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit efc73f4b "net: Fix memory leak - vlan_info struct" adds deletion of VLAN 0 for devices with feature NETIF_F_HW_VLAN_FILTER. For driver qeth these are the layer 3 devices. Usually there exists no separate vlan net_device for VLAN 0. Thus the qeth functions qeth_l3_free_vlan_addresses4() and qeth_l3_free_vlan_addresses6() require an extra checking if function __vlan_find_dev_deep() returns with a net_device. Cc: stable@vger.kernel.org Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * netiucv: cleanup attribute usagefrank.blaschka@de.ibm.com2012-07-251-28/+6
| | | | | | | | | | | | | | | | | | | | | | Let the driver core handle device attribute creation and removal. This will simplify the code and eliminates races between attribute availability and userspace notification via uevents. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Acked-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge tag 'kvm-3.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2012-07-244-11/+50
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull KVM updates from Avi Kivity: "Highlights include - full big real mode emulation on pre-Westmere Intel hosts (can be disabled with emulate_invalid_guest_state=0) - relatively small ppc and s390 updates - PCID/INVPCID support in guests - EOI avoidance; 3.6 guests should perform better on 3.6 hosts on interrupt intensive workloads) - Lockless write faults during live migration - EPT accessed/dirty bits support for new Intel processors" Fix up conflicts in: - Documentation/virtual/kvm/api.txt: Stupid subchapter numbering, added next to each other. - arch/powerpc/kvm/booke_interrupts.S: PPC asm changes clashing with the KVM fixes - arch/s390/include/asm/sigp.h, arch/s390/kvm/sigp.c: Duplicated commits through the kvm tree and the s390 tree, with subsequent edits in the KVM tree. * tag 'kvm-3.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (93 commits) KVM: fix race with level interrupts x86, hyper: fix build with !CONFIG_KVM_GUEST Revert "apic: fix kvm build on UP without IOAPIC" KVM guest: switch to apic_set_eoi_write, apic_write apic: add apic_set_eoi_write for PV use KVM: VMX: Implement PCID/INVPCID for guests with EPT KVM: Add x86_hyper_kvm to complete detect_hypervisor_platform check KVM: PPC: Critical interrupt emulation support KVM: PPC: e500mc: Fix tlbilx emulation for 64-bit guests KVM: PPC64: booke: Set interrupt computation mode for 64-bit host KVM: PPC: bookehv: Add ESR flag to Data Storage Interrupt KVM: PPC: bookehv64: Add support for std/ld emulation. booke: Added crit/mc exception handler for e500v2 booke/bookehv: Add host crit-watchdog exception support KVM: MMU: document mmu-lock and fast page fault KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint KVM: MMU: trace fast page fault KVM: MMU: fast path of handling guest page fault KVM: MMU: introduce SPTE_MMU_WRITEABLE bit KVM: MMU: fold tlb flush judgement into mmu_spte_update ...
| * KVM: s390: Perform early event mask processing during bootHeinz Graalfs2012-06-134-11/+50
| | | | | | | | | | | | | | | | | | | | | | | | For processing under KVM it is required to detect the actual SCLP console type in order to set it as preferred console. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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