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* sched/headers: Prepare to move signal wakeup & sigpending methods from ↵Ingo Molnar2017-03-021-1/+1
| | | | | | | | | | | | | <linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmfDave Jiang2017-02-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | ->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to take a vma and vmf parameter when the vma already resides in vmf. Remove the vma parameter to simplify things. [arnd@arndb.de: fix ARM build] Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* net: use core MTU range checking in misc driversJarod Wilson2016-10-201-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | firewire-net: - set min/max_mtu - remove fwnet_change_mtu nes: - set max_mtu - clean up nes_netdev_change_mtu xpnet: - set min/max_mtu - remove xpnet_dev_change_mtu hippi: - set min/max_mtu - remove hippi_change_mtu batman-adv: - set max_mtu - remove batadv_interface_change_mtu - initialization is a little async, not 100% certain that max_mtu is set in the optimal place, don't have hardware to test with rionet: - set min/max_mtu - remove rionet_change_mtu slip: - set min/max_mtu - streamline sl_change_mtu um/net_kern: - remove pointless ndo_change_mtu hsi/clients/ssi_protocol: - use core MTU range checking - remove now redundant ssip_pn_set_mtu ipoib: - set a default max MTU value - Note: ipoib's actual max MTU can vary, depending on if the device is in connected mode or not, so we'll just set the max_mtu value to the max possible, and let the ndo_change_mtu function continue to validate any new MTU change requests with checks for CM or not. Note that ipoib has no min_mtu set, and thus, the network core's mtu > 0 check is the only lower bounds here. mptlan: - use net core MTU range checking - remove now redundant mpt_lan_change_mtu fddi: - min_mtu = 21, max_mtu = 4470 - remove now redundant fddi_change_mtu (including export) fjes: - min_mtu = 8192, max_mtu = 65536 - The max_mtu value is actually one over IP_MAX_MTU here, but the idea is to get past the core net MTU range checks so fjes_change_mtu can validate a new MTU against what it supports (see fjes_support_mtu in fjes_hw.c) hsr: - min_mtu = 0 (calls ether_setup, max_mtu is 1500) f_phonet: - min_mtu = 6, max_mtu = 65541 u_ether: - min_mtu = 14, max_mtu = 15412 phonet/pep-gprs: - min_mtu = 576, max_mtu = 65530 - remove redundant gprs_set_mtu CC: netdev@vger.kernel.org CC: linux-rdma@vger.kernel.org CC: Stefan Richter <stefanr@s5r6.in-berlin.de> CC: Faisal Latif <faisal.latif@intel.com> CC: linux-rdma@vger.kernel.org CC: Cliff Whickman <cpw@sgi.com> CC: Robin Holt <robinmholt@gmail.com> CC: Jes Sorensen <jes@trained-monkey.org> CC: Marek Lindner <mareklindner@neomailbox.ch> CC: Simon Wunderlich <sw@simonwunderlich.de> CC: Antonio Quartulli <a@unstable.cc> CC: Sathya Prakash <sathya.prakash@broadcom.com> CC: Chaitra P B <chaitra.basappa@broadcom.com> CC: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> CC: MPT-FusionLinux.pdl@broadcom.com CC: Sebastian Reichel <sre@kernel.org> CC: Felipe Balbi <balbi@kernel.org> CC: Arvid Brodin <arvid.brodin@alten.se> CC: Remi Denis-Courmont <courmisch@gmail.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* HSI: ssi_protocol: fix ssip_xmit invocationSebastian Reichel2016-06-281-1/+12
| | | | | | | | ssip_xmit should be called from process context, since it calls hsi_async_write. Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-by: Pavel Machek <pavel@ucw.cz>
* HSI: ssi_protocol: replace spin_lock with spin_lock_bhSebastian Reichel2016-06-281-32/+32
| | | | | | | | | To avoid setting irq_safe runtime pm flag in omap-ssi, multiple calls will be moved to process context. This also affects ssi-protocol, so use the safer spin_lock_bh instead of a simple spin_lock. Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-by: Pavel Machek <pavel@ucw.cz>
* HSI: ssi_protocol: avoid ssi_waketest call with held spinlockSebastian Reichel2016-06-281-16/+25
| | | | | | | | | This avoids calling ssi_waketest(), while a spinlock is being hold, since ssi_waketest may sleep once irq_safe runtime pm is disabled. Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-by: Pavel Machek <pavel@ucw.cz>
* HSI: cmt_speech: Fix double spin_lockIago Abal2016-06-101-1/+1
| | | | | | | | | | | | | | | | | | | | | Release &hi->lock before calling `cs_hsi_control_read_error' to avoid deadlock. The bug was found using EBA (https://github.com/models-team/eba), which reported the following: Double lock first at drivers/hsi/clients/cmt_speech.c:443 second at drivers/hsi/clients/cmt_speech.c:447 In cs_hsi_read_on_control_complete defined at drivers/hsi/clients/cmt_speech.c:438: (!) drivers/hsi/clients/cmt_speech.c:443: spin_lock(& hi->lock); (?) drivers/hsi/clients/cmt_speech.c:445: msg->status == 4 -> true (!) drivers/hsi/clients/cmt_speech.c:447: cs_hsi_control_read_error(hi, msg); (!) drivers/hsi/clients/cmt_speech.c:407: __cs_hsi_error_pre(hi, msg, "control read", & hi->control_state); (!) drivers/hsi/clients/cmt_speech.c:382: spin_lock(& hi->lock); Signed-off-by: Iago Abal <mail@iagoabal.eu> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: cmt_speech: use vma_pages().Muhammad Falak R Wani2016-05-291-1/+1
| | | | | | | | Replace explicit computation of vma page count by a call to vma_pages() Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: ssi-protocol: Use handshake logic from n950Sebastian Reichel2016-01-281-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using the ssi-protocol driver with the Nokia N950, the following error is thrown during modem powered up sequence. [13852.274993] port0: SSI error: 0x01 [13852.279205] ssi-protocol ssi-protocol: RX error detected [13852.284820] ssi-protocol ssi-protocol: Main state: 1 [13852.290069] ssi-protocol ssi-protocol: Recv state: 0 [13852.295288] ssi-protocol ssi-protocol: Send state: 0 [13852.300537] ssi-protocol ssi-protocol: CMT Offline [13852.305603] ssi-protocol ssi-protocol: Wake test 1 [13852.310638] ssi-protocol ssi-protocol: Data RX id: 0 [13852.315887] ssi-protocol ssi-protocol: Data TX id: 0 [13856.001464] ssi-protocol ssi-protocol: Watchdog trigerred [13856.007293] ssi-protocol ssi-protocol: Main state: 1 [13856.012542] ssi-protocol ssi-protocol: Recv state: 0 [13856.017761] ssi-protocol ssi-protocol: Send state: 0 [13856.023010] ssi-protocol ssi-protocol: CMT Offline [13856.028045] ssi-protocol ssi-protocol: Wake test 0 [13856.033111] ssi-protocol ssi-protocol: Data RX id: 0 [13856.038330] ssi-protocol ssi-protocol: Data TX id: 0 This patch fixes the issue by using the handshake setup from the Nokia N950 kernel. The new handshake sequence also works with the N900, so there is no need to differentiate between both modems. Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: nokia-modem: add n950 and n9 supportSebastian Reichel2016-01-281-0/+2
| | | | | | | | | | | | | | | The Nokia N950 and Nokia N9 also have a SSI connected modem, which use the same protocols as the Nokia N900, but with increased link speed (96000 kbps instead of 55000 kbps) and with less GPIOs. Since it's unclear, if the N950 and the N9 use exactly the same modem, each of them gets their own compatible string. Acked-by: Rob Herring <robh@kernel.org> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: Fix a typoJakub Wilk2015-09-181-1/+1
| | | | | Signed-off-by: Jakub Wilk <jwilk@jwilk.net> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* mm: mark most vm_operations_struct constKirill A. Shutemov2015-09-101-1/+1
| | | | | | | | | | | | | | | | With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct structs should be constant. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Minchan Kim <minchan@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* HSI: nokia-modem: use flags argument of devm_gpiod_get to set directionUwe Kleine-König2015-06-231-5/+2
| | | | | | | | | | | | | Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output. Use this to simplify the driver. Furthermore this is one caller less that stops us making the flags argument to gpiod_get*() mandatory. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: nokia-modem: Reduce missing driver message to debug levelSebastian Reichel2015-06-231-2/+2
| | | | | | | | | Reduce message priority from dev_err to dev_dbg for missing cmt-speech or ssi-protocol drivers, since they will be probed again and it may result in spamming the boot log. Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: cmt_speech: fix timestamp interfaceSebastian Reichel2015-06-231-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | The user interface for timestamps in the new cmt_speech driver is broken in multiple ways: - The layout is incompatible between 32-bit and 64-bit user space, because of the size differences in 'struct timespec'. This means that the driver can not work when used with 32-bit user space on a 64-bit kernel. - As there are plans to change 32-bit user space to use a 64-bit time_t type in the future, it will also be incompatible with new 32-bit user space. - It is using ktime_get_ts under it's deprecated alias (do_posix_clock_monotonic_gettime). To keep support for the user space tools written for this driver (which have lived many years out-of-tree), the interface has been hardened to unsigned 32-bit values. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: cmt_speech: fix error return codeJulia Lawall2015-04-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: nokia-modem: Add cmt-speech supportSebastian Reichel2015-03-312-2/+32
| | | | | | | | | Register cmt-speech driver in nokia-modem driver and forward hsi channel information. Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: cmt_speech: Add cmt-speech driverKai Vehmanen2015-03-313-0/+1467
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduces the cmt-speech driver, which implements a character device interface for transferring speech data frames over HSI/SSI. The driver is used to exchange voice/speech data between the Nokia N900/N950/N9's modem and its cpu. Signed-off-by: Kai Vehmanen <kai.vehmanen@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Signed-off-by: Joni Lapilainen <joni.lapilainen@gmail.com> Since the original driver has been written for 2.6.28 some build fixes and general cleanups have been added by me: * fix build for 4.0 kernel * replace GFP_ATOMIC with GFP_KERNEL in cs_alloc_cmds() * add sanity check for CS_SET_WAKELINE ioctl * cleanup driver initialisation * rename driver to cmt-speech to be consistent with ssi-protocol driver * move cs-protocol.h to include/uapi/linux/hsi, since it describes a userspace API * replace hardcoded channels numbers with values provided via the HSI framework (e.g. coming from DT) Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: nokia-modem: fix error return codeJulia Lawall2015-02-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* hsi: nokia-modem: fix uninitialized device pointerAaro Koskinen2015-01-041-0/+1
| | | | | | | | | modem->device was never initialized. This resulted in logs such as: [ 241.386322] (NULL device *): CMT rst line change detected Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: nokia-modem: fix error handling of irq_of_parse_and_mapDmitry Torokhov2014-11-141-2/+2
| | | | | | | | Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating failure, so testing for negative result never works. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: nokia-modem: setup default value for pm parameterSebastian Reichel2014-11-141-1/+1
| | | | | | | | The module documents, that 1 is the default, but it actually isn't. This updates the module to use pm=1 as default. Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: remove deprecated IRQF_DISABLEDMichael Opdenacker2014-10-031-1/+1
| | | | | | | | | | | Remove the use of the IRQF_DISABLED flag from drivers/hsi/clients/nokia-modem.c It's a NOOP since 2.6.35 and it will be removed soon. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* Merge tag 'hsi-for-3.17' of ↵Linus Torvalds2014-08-061-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi Pull HSI changes from Sebastian Reichel: "Misc fixes in SSI related drivers" * tag 'hsi-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: omap_ssi: Fix return value check in ssi_debug_add_ctrl() HSI: omap_ssi_port: Fix return value check in ssi_debug_add_port() HSI: ssi_protocol: Fix sparse non static symbol warning drivers/hsi/controllers/omap_ssi{,_port}.c: fix failure checks
| * HSI: ssi_protocol: Fix sparse non static symbol warningWei Yongjun2014-07-201-1/+1
| | | | | | | | | | | | | | | | | | | | Fixes the following sparse warning: drivers/hsi/clients/ssi_protocol.c:904:6: warning: symbol 'ssip_port_event' was not declared. Should it be static? Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* | net: set name_assign_type in alloc_netdev()Tom Gundersen2014-07-151-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert all users to pass NET_NAME_UNKNOWN. Coccinelle patch: @@ expression sizeof_priv, name, setup, txqs, rxqs, count; @@ ( -alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs) +alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs) | -alloc_netdev_mq(sizeof_priv, name, setup, count) +alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count) | -alloc_netdev(sizeof_priv, name, setup) +alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup) ) v9: move comments here from the wrong commit Signed-off-by: Tom Gundersen <teg@jklm.no> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* HSI: fix omap ssi driver dependencyArnd Bergmann2014-06-031-1/+1
| | | | | | | | | | | | | | | The SSI protocol implementation has an incorrect dependency on the OMAP_SSI driver, which allows SSI to be built-in while the underlying OMAP_SSI implementation is a loadable module, causing a link error. This changes the dependency to the simpler 'depends on OMAP_SSI' that also ensures that SSI-protocol can only be a module if OMAP_SSI is not built-in. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Sebastian Reichel <sre@kernel.org> Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: Introduce Nokia N900 modem driverSebastian Reichel2014-05-163-0/+295
| | | | | | | | | | | | | | The Nokia N900's modem is connected via Synchronous Serial Interface (SSI), which is a legacy version of MIPI's High-speed Synchronous Serial Interface (HSI). The handles the GPIOs for enabling and resetting the modem and instanciates ssi-protocol for data exchange. It does not yet support exchanging voice data with the modem. Signed-off-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Pavel Machek <pavel@ucw.cz> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
* HSI: Introduce driver for SSI ProtocolSebastian Reichel2014-05-163-1/+1201
| | | | | | | | | This adds a driver for the SSI McSAAB protocol as used in the Nokia N900. Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
* HSI: Add channel resource support to HSI clientsSebastian Reichel2014-05-161-6/+6
| | | | | | | | Make HSI channel ids platform data, which can be provided by platform data. Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
* HSI: hsi-char: fix driver for multiport scenariosSebastian Reichel2014-05-041-1/+1
| | | | | | | | Fix return code check of alloc_chrdev_region, which returns 0 on success. Signed-off-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Pavel Machek <pavel@ucw.cz>
* Drivers: misc: remove __dev* attributes.Greg Kroah-Hartman2013-01-031-4/+4
| | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* HSI: hsi_char: Remove max_data_size from sysfsCarlos Chinea2012-04-231-1/+1
| | | | | | | | | | Remove max_data_size sysfs entry. Otherwise is possible to have a buffer overrun if its value is increased after the device is open. Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* HSI: hsi_char: Add HSI char device kernel configurationAndras Domokos2012-01-052-0/+18
| | | | | | | Add HSI character device kernel configuration Signed-off-by: Andras Domokos <andras.domokos@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
* HSI: hsi_char: Add HSI char device driverAndras Domokos2012-01-051-0/+802
Add HSI char device driver to the kernel. Signed-off-by: Andras Domokos <andras.domokos@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
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