- 08 Oct, 2014 23 commits
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Rasmus Villemoes authored
commit f0798d6a upstream. Clearly this was meant to be an include guard, but a trailing underscore was missing. It has been this way since the file was introduced in 0fe6f1d1 ("usb: udc: add Faraday fusb300 driver"). Fixes: 0fe6f1d1 ("usb: udc: add Faraday fusb300 driver") Signed-off-by:
Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
Kamal Mostafa <kamal@canonical.com>
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Ross Lagerwall authored
commit 61a734d3 upstream. Always freeze processes when suspending and thaw processes when resuming to prevent a race noticeable with HVM guests. This prevents a deadlock where the khubd kthread (which is designed to be freezable) acquires a usb device lock and then tries to allocate memory which requires the disk which hasn't been resumed yet. Meanwhile, the xenwatch thread deadlocks waiting for the usb device lock. Freezing processes fixes this because the khubd thread is only thawed after the xenwatch thread finishes resuming all the devices. Signed-off-by:
Ross Lagerwall <ross.lagerwall@citrix.com> Signed-off-by:
David Vrabel <david.vrabel@citrix.com> Signed-off-by:
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Vladimir Murzin authored
commit 93b14135 upstream. If split page table lock for PTE tables is enabled (CONFIG_SPLIT_PTLOCK_CPUS <=NR_CPUS) pgtable_page_ctor() leads to non-atomic allocation for ptlock with a spinlock held, resulting in: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 466 at kernel/locking/lockdep.c:2742 lockdep_trace_alloc+0xd8/0xf4() DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)) Modules linked in: CPU: 0 PID: 466 Comm: dma0chan0-copy0 Not tainted 3.16.0-3d47efb-clean-pl330-dma_test-ve-a15-a32-slr-m c-on-3+ #55 [<80014748>] (unwind_backtrace) from [<80011640>] (show_stack+0x10/0x14) [<80011640>] (show_stack) from [<802bf864>] (dump_stack+0x80/0xb4) [<802bf864>] (dump_stack) from [<8002385c>] (warn_slowpath_common+0x64/0x88) [<8002385c>] (warn_slowpath_common) from [<80023914>] (warn_slowpath_fmt+0x30/0x40) [<80023914>] (warn_slowpath_fmt) from [<8005d818>] (lockdep_trace_alloc+0xd8/0xf4) [<8005d818>] (lockdep_trace_alloc) from [<800d3d78>] (kmem_cache_alloc+0x24/0x144) [<800d3d78>] (kmem_cache_alloc) from [<800bfae4>] (ptlock_alloc+0x18/0x2c) [<800bfae4>] (ptlock_alloc) from [<802b1ec0>] (arm_smmu_handle_mapping+0x4c0/0x690) [<802b1ec0>] (arm_smmu_handle_mapping) from [<802b0cd8>] (iommu_map+0xe0/0x148) [<802b0cd8>] (iommu_map) from [<80019098>] (arm_coherent_iommu_map_page+0x160/0x278) [<80019098>] (arm_coherent_iommu_map_page) from [<801f4d78>] (dmatest_func+0x60c/0x1098) [<801f4d78>] (dmatest_func) from [<8003f8ac>] (kthread+0xcc/0xe8) [<8003f8ac>] (kthread) from [<8000e868>] (ret_from_fork+0x14/0x2c) ---[ end trace ce0d27e6f434acf8 ]-- Split page tables lock is not used in the driver. In fact, page tables are guarded with domain lock, so remove calls to pgtable_page_{c,d}tor(). Signed-off-by:
Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
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Olav Haugan authored
commit 1fc870c7 upstream. Stage-1 context banks do not have the SMMU_CBn_TCR[SL0] field since it is only applicable to stage-2 context banks. This patch ensures that we don't set the reserved TCR bits for stage-1 translations. Signed-off-by:
Olav Haugan <ohaugan@codeaurora.org> Signed-off-by:
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Bjørn Mork authored
commit 5b3da692 upstream. This VID:PID is used for some Direct IP devices behaving identical to the already supported 0F3D:68AA devices. Reported-by:
Lars Melin <larsm17@gmail.com> Signed-off-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Bjørn Mork authored
commit 049255f5 upstream. Sierra Wireless Direct IP devices using the 68A3 product ID can be configured for modes including a CDC ECM class function. The known example uses interface numbers 12 and 13 for the ECM control and data interfaces respectively, consistent with CDC MBIM function interface numbering on other Sierra devices. It seems cleaner to restrict this driver to the ff/ff/ff vendor specific interfaces rather than increasing the already long interface number blacklist. This should be more future proof if Sierra adds more class functions using interface numbers not yet in the blacklist. Signed-off-by:
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Johan Hovold authored
commit ee444609 upstream. Add device id for NOVITUS Bono E thermal printer. Reported-by:
Emanuel Koczwara <poczta@emanuelkoczwara.pl> Signed-off-by:
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Johan Hovold authored
commit 4df0ea41 upstream. Add back some PIDs that were mistakingly remove when reverting commit 73228a05 ("USB: option,zte_ev: move most ZTE CDMA devices to zte_ev"), which apparently did more than its commit message claimed in that it not only moved some PIDs from option to zte_ev but also added some new ones. Fixes: 63a901c0 ("Revert "USB: option,zte_ev: move most ZTE CDMA devices to zte_ev"") Reported-by:
Lei Liu <lei35151@163.com> Signed-off-by:
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Emmanuel Grumbach authored
commit f47f46d7 upstream. This reverts commit 43d826ca. This commit caused packet loss. Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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James Ralston authored
commit 6cad1376 upstream. This patch adds the IDE mode SATA Device IDs for the Intel 9 Series PCH. Signed-off-by:
James Ralston <james.d.ralston@intel.com> Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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James Ralston authored
commit 1b071a09 upstream. This patch adds the AHCI mode SATA Device IDs for the Intel 9 Series PCH. Signed-off-by:
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Johannes Berg authored
commit bb512ad0 upstream. This reverts commit 24aa11ab. That commit was wrong since it uses data that hasn't even been set up yet, but might be a hold-over from a previous connection. Additionally, it seems like a driver-specific workaround that shouldn't have been in mac80211 to start with. Fixes: 24aa11ab ("mac80211: disable uAPSD if all ACs are under ACM") Reviewed-by:
Luciano Coelho <luciano.coelho@intel.com> Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Pavel Shilovsky authored
commit 1bbe4997 upstream. The existing code uses the old MAX_NAME constant. This causes XFS test generic/013 to fail. Fix it by replacing MAX_NAME with PATH_MAX that SMB1 uses. Also remove an unused MAX_NAME constant definition. Signed-off-by:
Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by:
Steve French <smfrench@gmail.com> Signed-off-by:
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Pavel Shilovsky authored
commit f736906a upstream. The existing code calls server->ops->close() that is not right. This causes XFS test generic/310 to fail. Fix this by using server->ops->closedir() function. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Larry Finger authored
commit c6651716 upstream. The Sitecom WLA-2102 adapter uses this driver. Reported-by:
Nico Baggus <nico-linux@noci.xs4all.nl> Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Cc: Nico Baggus <nico-linux@noci.xs4all.nl> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Tony Lindgren authored
commit 85601b8d upstream. Commit 249751f2 ("usb: phy: twl4030-usb: poll for ID disconnect") added twl4030_id_workaround_work() to deal with lost interrupts after ID pin goes down. Looks like commit f1ddc24c ("usb: phy: twl4030-usb: remove *set_suspend* and *phy_init* ops") changed things around for the generic phy framework, and delayed work no longer got called except initially during boot. The PHY connect and disconnect interrupts for twl4030-usb are not working after disconnecting a USB-A cable from the board, and the deeper idle states for omap are blocked as the USB controller stays busy. The issue can be solved by calling delayed work from twl4030_usb_irq() when ID pin is down and the PHY is not asleep like we already do in twl4030_id_workaround_work(). But as both twl4030_usb_irq() and twl4030_id_workaround_work() already do pretty much the same thing, let's call twl4030_usb_irq() from twl4030_id_workaround_work() instead of adding some more duplicate code. We also must call sysfs_notify() only when we have an interrupt and not from the delayed work as notified by Grazvydas Ignotas <notasas@gmail.com>. Fixes: f1ddc24c ("usb: phy: twl4030-usb: remove *set_suspend* and *phy_init* ops") Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by:
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Pavel Shilovsky authored
commit a07d3220 upstream. CIFS servers process nlink counts differently for files and directories. In cifs_rename() if we the request fails on the existing target, we try to remove it through cifs_unlink() but this is not what we want to do for directories. As the result the following sequence of commands mkdir {1,2}; mv -T 1 2; rmdir {1,2}; mkdir {1,2}; echo foo > 2/bar and XFS test generic/023 fail with -ENOENT error. That's why the second mkdir reuses the existing inode (target inode of the mv -T command) with S_DEAD flag. Fix this by checking whether the target is directory or not and calling cifs_rmdir() rather than cifs_unlink() for directories. Signed-off-by:
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Miklos Szeredi authored
commit 44b1d530 upstream. Add d_is_dir(dentry) helper which is analogous to S_ISDIR(). To avoid confusion, rename d_is_directory() to d_can_lookup(). Signed-off-by:
Miklos Szeredi <mszeredi@suse.cz> Reviewed-by:
J. Bruce Fields <bfields@redhat.com> [ kamal: 3.13-stable prereq for a9c8259 "CIFS: Fix directory rename error" ] Signed-off-by:
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Alban Crequy authored
commit 71b1fb5c upstream. /proc/<pid>/cgroup contains one cgroup path on each line. If cgroup names are allowed to contain "\n", applications cannot parse /proc/<pid>/cgroup safely. Signed-off-by:
Alban Crequy <alban.crequy@collabora.co.uk> Signed-off-by:
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Honggang Li authored
commit 3189eddb upstream. Currently, only SMP system free the percpu allocation info. Uniprocessor system should free it too. For example, one x86 UML virtual machine with 256MB memory, UML kernel wastes one page memory. Signed-off-by:
Honggang Li <enjoymindful@gmail.com> Signed-off-by:
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Tejun Heo authored
commit 849f5169 upstream. If pcpu_map_pages() fails midway, it unmaps the already mapped pages. Currently, it doesn't flush tlb after the partial unmapping. This may be okay in most cases as the established mapping hasn't been used at that point but it can go wrong and when it goes wrong it'd be extremely difficult to track down. Flush tlb after the partial unmapping. Signed-off-by:
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Tejun Heo authored
commit f0d27965 upstream. When pcpu_alloc_pages() fails midway, pcpu_free_pages() is invoked to free what has already been allocated. The invocation is across the whole requested range and pcpu_free_pages() will try to free all non-NULL pages; unfortunately, this is incorrect as pcpu_get_pages_and_bitmap(), unlike what its comment suggests, doesn't clear the pages array and thus the array may have entries from the previous invocations making the partial failure path free incorrect pages. Fix it by open-coding the partial freeing of the already allocated pages. Signed-off-by:
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Eliad Peller authored
commit a5fe8e76 upstream. alpha2 is defined as 2-chars array, but is used in multiple places as string (e.g. with nla_put_string calls), which might leak kernel data. Solve it by simply adding an extra char for the NULL terminator, making such operations safe. Signed-off-by:
Eliad Peller <eliadx.peller@intel.com> Signed-off-by:
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- 03 Oct, 2014 1 commit
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Kamal Mostafa authored
Signed-off-by:
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- 01 Oct, 2014 1 commit
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Greg Kroah-Hartman authored
commit a9ef803d upstream. commit bdd405d2 ("usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1") causes a build error if CONFIG_PM_RUNTIME is disabled. Fix that by doing a simple #ifdef guard around it. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Reported-by:
kbuild test robot <fengguang.wu@intel.com> Cc: Roger Quadros <rogerq@ti.com> Cc: Michael Welling <mwelling@emacinc.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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- 30 Sep, 2014 15 commits
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Jiri Kosina authored
commit 6726655d upstream. There is a following AB-BA dependency between cpu_hotplug.lock and cpuidle_lock: 1) cpu_hotplug.lock -> cpuidle_lock enable_nonboot_cpus() _cpu_up() cpu_hotplug_begin() LOCK(cpu_hotplug.lock) cpu_notify() ... acpi_processor_hotplug() cpuidle_pause_and_lock() LOCK(cpuidle_lock) 2) cpuidle_lock -> cpu_hotplug.lock acpi_os_execute_deferred() workqueue ... acpi_processor_cst_has_changed() cpuidle_pause_and_lock() LOCK(cpuidle_lock) get_online_cpus() LOCK(cpu_hotplug.lock) Fix this by reversing the order acpi_processor_cst_has_changed() does thigs -- let it first execute the protection against CPU hotplug by calling get_online_cpus() and obtain the cpuidle lock only after that (and perform the symmentric change when allowing CPUs hotplug again and dropping cpuidle lock). Spotted by lockdep. Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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David Howells authored
commit 27419604 upstream. An edit script should be considered inaccessible by a function once it has called assoc_array_apply_edit() or assoc_array_cancel_edit(). However, assoc_array_gc() is accessing the edit script just after the gc_complete: label. Reported-by:
Andreea-Cristina Bernat <bernat.ada@gmail.com> Signed-off-by:
David Howells <dhowells@redhat.com> Reviewed-by:
James Morris <james.l.morris@oracle.com> Signed-off-by:
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Jeff Moyer authored
commit 2ff396be upstream. We ran into a case on ppc64 running mariadb where io_getevents would return zeroed out I/O events. After adding instrumentation, it became clear that there was some missing synchronization between reading the tail pointer and the events themselves. This small patch fixes the problem in testing. Thanks to Zach for helping to look into this, and suggesting the fix. Signed-off-by:
Jeff Moyer <jmoyer@redhat.com> Signed-off-by:
Benjamin LaHaise <bcrl@kvack.org> Signed-off-by:
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Marek Roszko authored
commit 75b81f33 upstream. The driver was not bound checking the received length byte to ensure it was within the the buffer size that is allocated for SMBus blocks. This resulted in buffer overflows whenever an invalid length byte was received. It also failed to ensure the length byte was not zero. If it received zero, it would end up in an infinite loop as the at91_twi_read_next_byte function returned immediately without allowing RHR to be read to clear the RXRDY interrupt. Tested agaisnt a SMBus compliant battery. Signed-off-by:
Marek Roszko <mark.roszko@gmail.com> Acked-by:
Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by:
Wolfram Sang <wsa@the-dreams.de> Signed-off-by:
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Simon Lindgren authored
commit 6721f28a upstream. There is a race condition in at91_do_twi_xfer when signals arrive. If a signal is recieved while waiting for a transfer to complete wait_for_completion_interruptible_timeout() will return -ERESTARTSYS. This is not handled correctly resulting in interrupts still being enabled and a transfer being in flight when we return. Symptoms include a range of oopses and bus lockups. Oopses can happen when the transfer completes because the interrupt handler will corrupt the stack. If a new transfer is started before the interrupt fires the controller will start a new transfer in the middle of the old one, resulting in confused slaves and a locked bus. To avoid this, use wait_for_completion_io_timeout instead so that we don't have to deal with gracefully shutting down the transfer and disabling the interrupts. Signed-off-by:
Simon Lindgren <simon@aqwary.com> Acked-by:
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Chen-Yu Tsai authored
commit 0ce4bc1d upstream. The "clock-frequency" DT property is listed as optional, However, the current code stores the return value of of_property_read_u32 in the return code of mv64xxx_of_config, but then forgets to clear it after setting the default value of "clock-frequency". It is then passed out to the main probe function, resulting in a probe failure when "clock-frequency" is missing. This patch checks and then throws away the return value of of_property_read_u32, instead of storing it and having to clear it afterwards. This issue was discovered after the property was removed from all sunxi DTs. Fixes: 4c730a06 ("i2c: mv64xxx: Set bus frequency to 100kHz if clock-frequency is not provided") Signed-off-by:
Chen-Yu Tsai <wens@csie.org> Acked-by:
Andrew Lunn <andrew@lunn.ch> Acked-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by:
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Sergei Shtylyov authored
commit dd318b0d upstream. Sometimes the MNR and MST interrupts happen simultaneously (stop automatically follows NACK, according to the manuals) and in such case the ID_NACK flag isn't set since the MST interrupt handling precedes MNR and all interrupts are cleared and disabled then, so that MNR interrupt is never noticed -- this causes NACK'ed transfers to be falsely reported as successful. Exchanging MNR and MST handlers fixes this issue, however the MNR bit somehow gets set again even after being explicitly cleared, so I decided to completely suppress handling of all disabled interrupts (which is a good thing anyway)... Signed-off-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
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Takashi Iwai authored
commit acf08081 upstream. ALC1150 codec seems to need the COEF- and PLL-setups just like its compatible ALC882 codec. Some machines (e.g. SunMicro X10SAT) show the problem like too low output volumes unless the COEF setup is applied. Reported-and-tested-by:
Dana Goyette <danagoyette@gmail.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Dave Chinner authored
commit 834ffca6 upstream. Similar to direct IO reads, direct IO writes are using truncate_pagecache_range to invalidate the page cache. This is incorrect due to the sub-block zeroing in the page cache that truncate_pagecache_range() triggers. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. Signed-off-by:
Dave Chinner <dchinner@redhat.com> Reviewed-by:
Brian Foster <bfoster@redhat.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Dave Chinner <david@fromorbit.com> Signed-off-by:
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Chris Mason authored
commit 85e584da upstream. xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. [dchinner: catch error and warn if it fails. Comment.] Signed-off-by:
Chris Mason <clm@fb.com> Reviewed-by:
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Dave Chinner authored
commit 22e757a4 upstream. generic/263 is failing fsx at this point with a page spanning EOF that cannot be invalidated. The operations are: 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO write attempts to invalidate the cached page over this range, it fails with -EBUSY and so any attempt to do page invalidation fails. The real question is this: Why can't that page be invalidated after it has been written to disk and cleaned? Well, there's data on the first two buffers in the page (1k block size, 4k page), but the third buffer on the page (i.e. beyond EOF) is failing drop_buffers because it's bh->b_state == 0x3, which is BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say what? OK, set_buffer_dirty() is called on all buffers from __set_page_buffers_dirty(), regardless of whether the buffer is beyond EOF or not, which means that when we get to ->writepage, we have buffers marked dirty beyond EOF that we need to clean. So, we need to implement our own .set_page_dirty method that doesn't dirty buffers beyond EOF. This is messy because the buffer code is not meant to be shared and it has interesting locking issues on the buffer dirty bits. So just copy and paste it and then modify it to suit what we need. Note: the solutions the other filesystems and generic block code use of marking the buffers clean in ->writepage does not work for XFS. It still leaves dirty buffers beyond EOF and invalidations still fail. Hence rather than play whack-a-mole, this patch simply prevents those buffers from being dirtied in the first place. Signed-off-by:
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Takashi Iwai authored
commit ff50479a upstream. Acer Aspire 3830TG with CX20588 codec has a digital built-in mic that has the same problem like many others, the inverted signal in stereo. Apply the same fixup to this machine, too. Signed-off-by:
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Thomas Hellstrom authored
commit f01ea0c3 upstream. The code waiting for fifo idle was incorrect and could possibly spin forever under certain circumstances. Signed-off-by:
Thomas Hellstrom <thellstrom@vmware.com> Reported-by:
Mark Sheldon <markshel@vmware.com> Reviewed-by:
Jakob Bornecrantz <jakob@vmware.com> Reivewed-by:
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Mark Brown authored
commit 5c1ebe7f upstream. If the device can't support block writes then don't attempt to use raw syncing which will automatically generate block writes for adjacent registers, use the existing _single() block syncing implementation. Reported-by:
Jarkko Nikula <jarkko.nikula@linux.intel.com> Tested-by:
Mark Brown <broonie@linaro.org> Signed-off-by:
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Al Viro authored
commit 81b6b061 upstream. We need the parents of victims alive until namespace_unlock() gets to dput() of the (ex-)mountpoints. However, that screws up the "is it busy" checks in case when we have shrinkable mounts that need to be killed. Solution: go ahead and decrement refcounts of parents right in umount_tree(), increment them again just before dropping rwsem in namespace_unlock() (and let the loop in the end of namespace_unlock() finally drop those references for good, as we do now). Parents can't get freed until we drop rwsem - at least one reference is kept until then, both in case when parent is among the victims and when it is not. So they'll still be around when we get to namespace_unlock(). Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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