- 15 Jul, 2015 40 commits
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Peter Ujfalusi authored
commit 1cf0f448 upstream. SOC_DAPM_SINGLE("Playback AMP", ..) should not be under kcontrols. It causes kernel crash (NULL pointer) when the mixers are listed. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
Kamal Mostafa <kamal@canonical.com>
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Peter Ujfalusi authored
commit 80ba2669 upstream. If the card is not part of any card the tas_data->codec is NULL since it is set only during snd_soc_codec_driver.probe, which is not yet called. Signed-off-by:
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Eric W. Biederman authored
commit 8c6cf9cc upstream. Ignore an existing mount if the locked readonly, nodev or atime attributes are less permissive than the desired attributes of the new mount. On success ensure the new mount locks all of the same readonly, nodev and atime attributes as the old mount. The nosuid and noexec attributes are not checked here as this change is destined for stable and enforcing those attributes causes a regression in lxc and libvirt-lxc where those applications will not start and there are no known executables on sysfs or proc and no known way to create exectuables without code modifications Fixes: e51db735 ("userns: Better restrictions on when proc and sysfs can be mounted") Signed-off-by:
"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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Ludovic Desroches authored
commit ea25525c upstream. Mci0 uses slot 0 not 1. Signed-off-by:
Ludovic Desroches <ludovic.desroches@atmel.com> Fixes: 7a475267 ("ARM: at91: dt: add device tree file for SAMA5D4ek board") Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
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Omar Sandoval authored
commit 64ad6c48 upstream. Since commit bafc9b75 ("vfs: More precise tests in d_invalidate"), mounted subvolumes can be deleted because d_invalidate() won't fail. However, we run into problems when we attempt to delete the default subvolume while it is mounted as the root filesystem: # btrfs subvol list / ID 257 gen 306 top level 5 path rootvol ID 267 gen 334 top level 5 path snap1 # btrfs subvol get-default / ID 267 gen 334 top level 5 path snap1 # btrfs inspect-internal rootid / 267 # mount -o subvol=/ /dev/vda1 /mnt # btrfs subvol del /mnt/snap1 Delete subvolume (no-commit): '/mnt/snap1' ERROR: cannot delete '/mnt/snap1' - Operation not permitted # findmnt / findmnt: can't read /proc/mounts: No such file or directory # ls /proc # Markus reported that this same scenario simply led to a kernel oops. This happens because in btrfs_ioctl_snap_destroy(), we call d_invalidate() before we check may_destroy_subvol(), which means that we detach the submounts and drop the dentry before erroring out. Instead, we should only invalidate the dentry once the deletion has succeeded. Additionally, the shrink_dcache_sb() isn't necessary; d_invalidate() will prune the dcache for the deleted subvolume. Fixes: bafc9b75 ("vfs: More precise tests in d_invalidate") Reported-by:
Markus Schauler <mschauler@gmail.com> Signed-off-by:
Omar Sandoval <osandov@osandov.com> Signed-off-by:
Chris Mason <clm@fb.com> Signed-off-by:
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Brian King authored
commit 45c44b5f upstream. Increase the default init stage change timeout from 15 seconds to 30 seconds. This resolves issues we have seen with some adapters not transitioning to the first init stage within 15 seconds, which results in adapter initialization failures. Signed-off-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
James Bottomley <JBottomley@Odin.com> Signed-off-by:
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Trond Myklebust authored
commit 88de6af2 upstream. req->rq_private_buf isn't initialised when xprt_setup_backchannel calls xprt_free_allocation. Fixes: fb7a0b9a ("nfs41: New backchannel helper routines") Signed-off-by:
Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by:
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Aaron Lu authored
commit 61e749d7 upstream. The CrystalCove GPIO irqchip doesn't have irq_set_wake callback defined so we should set IRQCHIP_SKIP_SET_WAKE for it or it would cause an irq desc's wake_depth unbalanced warning during system resume phase from the gpio_keys driver, which is the driver for the power button of the ASUS T100 laptop. Signed-off-by:
Aaron Lu <aaron.lu@intel.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Anton Blanchard authored
commit 72e349f1 upstream. When we take a PMU exception or a software event we call perf_read_regs(). This overloads regs->result with a boolean that describes if we should use the sampled instruction address register (SIAR) or the regs. If the exception is in kernel, we start with the kernel regs and backtrace through the kernel stack. At this point we switch to the userspace regs and backtrace the user stack with perf_callchain_user(). Unfortunately these regs have not got the perf_read_regs() treatment, so regs->result could be anything. If it is non zero, perf_instruction_pointer() decides to use the SIAR, and we get issues like this: 0.11% qemu-system-ppc [kernel.kallsyms] [k] _raw_spin_lock_irqsave | ---_raw_spin_lock_irqsave | |--52.35%-- 0 | | | |--46.39%-- __hrtimer_start_range_ns | | kvmppc_run_core | | kvmppc_vcpu_run_hv | | kvmppc_vcpu_run | | kvm_arch_vcpu_ioctl_run | | kvm_vcpu_ioctl | | do_vfs_ioctl | | sys_ioctl | | system_call | | | | | |--67.08%-- _raw_spin_lock_irqsave <--- hi mum | | | | | | | --100.00%-- 0x7e714 | | | 0x7e714 Notice the bogus _raw_spin_irqsave when we transition from kernel (system_call) to userspace (0x7e714). We inserted what was in the SIAR. Add a check in regs_use_siar() to check that the regs in question are from a PMU exception. With this fix the backtrace makes sense: 0.47% qemu-system-ppc [kernel.vmlinux] [k] _raw_spin_lock_irqsave | ---_raw_spin_lock_irqsave | |--53.83%-- 0 | | | |--44.73%-- hrtimer_try_to_cancel | | kvmppc_start_thread | | kvmppc_run_core | | kvmppc_vcpu_run_hv | | kvmppc_vcpu_run | | kvm_arch_vcpu_ioctl_run | | kvm_vcpu_ioctl | | do_vfs_ioctl | | sys_ioctl | | system_call | | __ioctl | | 0x7e714 | | 0x7e714 Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Signed-off-by:
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Dmitry Tunin authored
commit 4fa9dabc upstream. Lenovo G30-50 does not have a hardware wireless switch and wireless is always blocked. BugLink: https://bugs.launchpad.net/bugs/1397021Signed-off-by:
Dmitry Tunin <hanipouspilot@gmail.com> Signed-off-by:
Philippe Coval <philippe.coval@open.eurogiciel.org> [dvhart@linux.intel.com: Reordered dmi id per Phillippe's later version] Signed-off-by:
Darren Hart <dvhart@linux.intel.com> Signed-off-by:
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Sumit.Saxena@avagotech.com authored
megaraid_sas : Modify return value of megasas_issue_blocked_cmd() and wait_and_poll() to consider command status returned by firmware commit 2be2a988 upstream. This patch is rebased on top of recently sent 18 patches(submitted by me) for megaraid_sas driver. Change the return value of wait_and_poll() and megsas_issue_blocked_cmd() based on MFI_STAT returned by firmware for that command. Earlier driver always send return type based on command completion (but never check MFI_STAT_OK for that command), so even if command is failed by firmware still driver will return SUCCESS status from these functions wait_and_poll() and megsas_issue_blocked_cmd() and if caller of these functions does not check command status (MFI_STAT), then it may endup using invalid data returned in DMA buffers(one of the example is megasas_ld_list_query DCMD). Best thing to avoid this type of issue is do error handling and set proper return type from caller function wait_and_poll() and megsas_issue_blocked_cmd(). The change proposed in this patch will fix the regression introduced in patch- "90dc9d98 megaraid_sas : MFI MPT linked list corruption fix" inside function megasas_ld_list_query(). Prior to this MFI MPT linked list corruption fix patch, megasas_ld_list_query() function used to check DCMD status(returned by firmware) but with this linked list corruption fix patch, DCMD status will not be checked inside function megasas_ld_list_query() and introduced this issue of wrong data being used by function megasas_ld_list_query(). Signed-off-by:
Kashyap Desai <kashyap.desai@avagotech.com> Signed-off-by:
Sumit Saxena <sumit.saxena@avagotech.com> Reviewed-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Olga Kornievskaia authored
commit e8d975e7 upstream. Problem: When an operation like WRITE receives a BAD_STATEID, even though recovery code clears the RECLAIM_NOGRACE recovery flag before recovering the open state, because of clearing delegation state for the associated inode, nfs_inode_find_state_and_recover() gets called and it makes the same state with RECLAIM_NOGRACE flag again. As a results, when we restart looking over the open states, we end up in the infinite loop instead of breaking out in the next test of state flags. Solution: unset the RECLAIM_NOGRACE set because of calling of nfs_inode_find_state_and_recover() after returning from calling recover_open() function. Signed-off-by:
Olga Kornievskaia <kolga@netapp.com> Signed-off-by:
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Malcolm Priestley authored
commit b5eeed8c upstream. There is a small chance that pRD->pRDInfo->skb could go NULL while the interrupt is processing. Put NULL check on loop to break out. Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Robert Schlabbach authored
commit fb6d1f7d upstream. Fix USB 3.0 devices lost in NOTATTACHED state after a hub port reset. Dissolve the function hub_port_finish_reset() completely and divide the actions to be taken into those which need to be done after each reset attempt and those which need to be done after the full procedure is complete, and place them in the appropriate places in hub_port_reset(). Also, remove an unneeded forward declaration of hub_port_reset(). Verbose Problem Description: USB 3.0 devices may be "lost for good" during a hub port reset. This makes Linux unable to boot from USB 3.0 devices in certain constellations of host controllers and devices, because the USB device is lost during initialization, preventing the rootfs from being mounted. The underlying problem is that in the affected constellations, during the processing inside hub_port_reset(), the hub link state goes from 0 to SS.inactive after the initial reset, and back to 0 again only after the following "warm" reset. However, hub_port_finish_reset() is called after each reset attempt and sets the state the connected USB device based on the "preliminary" status of the hot reset to USB_STATE_NOTATTACHED due to SS.inactive, yet when the following warm reset is complete and hub_port_finish_reset() is called again, its call to set the device to USB_STATE_DEFAULT is blocked by usb_set_device_state() which does not allow taking USB devices out of USB_STATE_NOTATTACHED state. Thanks to Alan Stern for guiding me to the proper solution and how to submit it. Link: http://lkml.kernel.org/r/trinity-25981484-72a9-4d46-bf17-9c1cf9301a31-1432073240136%20()%203capp-gmx-bs27Signed-off-by:
Robert Schlabbach <robert_s@gmx.net> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Haggai Eran authored
commit cab46214 upstream. With an RTL8191SU USB adaptor, sometimes the hints for a fragmented packet are set, but the packet length is too large. Allocate enough space to prevent memory corruption and a resulting kernel panic [1]. [1] http://www.spinics.net/lists/linux-wireless/msg136546.htmlSigned-off-by:
Haggai Eran <haggai.eran@gmail.com> ACKed-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Yinghai Lu authored
commit 3a9ad0b4 upstream. David Ahern reported that d63e2e1f ("sparc/PCI: Clip bridge windows to fit in upstream windows") fails to boot on sparc/T5-8: pci 0000:06:00.0: reg 0x184: can't handle BAR above 4GB (bus address 0x110204000) The problem is that sparc64 assumed that dma_addr_t only needed to hold DMA addresses, i.e., bus addresses returned via the DMA API (dma_map_single(), etc.), while the PCI core assumed dma_addr_t could hold *any* bus address, including raw BAR values. On sparc64, all DMA addresses fit in 32 bits, so dma_addr_t is a 32-bit type. However, BAR values can be 64 bits wide, so they don't fit in a dma_addr_t. d63e2e1f added new checking that tripped over this mismatch. Add pci_bus_addr_t, which is wide enough to hold any PCI bus address, including both raw BAR values and DMA addresses. This will be 64 bits on 64-bit platforms and on platforms with a 64-bit dma_addr_t. Then dma_addr_t only needs to be wide enough to hold addresses from the DMA API. [bhelgaas: changelog, bugzilla, Kconfig to ensure pci_bus_addr_t is at least as wide as dma_addr_t, documentation] Fixes: d63e2e1f ("sparc/PCI: Clip bridge windows to fit in upstream windows") Fixes: 23b13bc7 ("PCI: Fail safely if we can't handle BARs larger than 4GB") Link: http://lkml.kernel.org/r/CAE9FiQU1gJY1LYrxs+ma5LCTEEe4xmtjRG0aXJ9K_Tsu+m9Wuw@mail.gmail.com Link: http://lkml.kernel.org/r/1427857069-6789-1-git-send-email-yinghai@kernel.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=96231Reported-by:
David Ahern <david.ahern@oracle.com> Tested-by:
Yinghai Lu <yinghai@kernel.org> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Acked-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Joe Thornber authored
commit fb4100ae upstream. There is a race between a policy deciding to replace a cache entry, the core target writing back any dirty data from this block, and other IO threads doing IO to the same block. This sort of problem is avoided most of the time by the core target grabbing a bio prison cell before making the request to the policy. But for a demotion the core target doesn't know which block will be demoted, so can't do this in advance. Fix this demotion race by introducing a callback to the policy interface that allows the policy to grab the cell on behalf of the core target. Signed-off-by:
Joe Thornber <ejt@redhat.com> Signed-off-by:
Mike Snitzer <snitzer@redhat.com> Signed-off-by:
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Felipe Balbi authored
commit e18b7975 upstream. In case of non-Isochronous transfers, we don't want to clear DWC3_EP_BUSY flag until XferComplete event. That's because XferInProgress was only enabled so we can recycle TRBs and usb_requests quicker, but there are still other pending requests being transferred. In order to make sure we don't allow for another StartTransfer command while the HW is still processing other transfers, we must keep DWC3_EP_BUSY flag set and this what this patch does. Fixes: f3af3651 (usb: dwc3: gadget: always enable IOC on bulk/interrupt transfers) Reported-by:
sundeep subbaraya <sundeep.lkml@gmail.com> Tested-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
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Richard Fitzgerald authored
commit 15575ed5 upstream. The Arizona codec drivers had an incorrect dB scaling for the noise generator gain that started at 0dB and went upwards. Actually the highest setting is 0dB. Signed-off-by:
Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by:
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Paul E. McKenney authored
commit 6e91f8cb upstream. If, at the time __rcu_process_callbacks() is invoked, there are callbacks in Tiny RCU's callback list, but none of them are ready to be invoked, the current list-management code will knit the non-ready callbacks out of the list. This can result in hangs and possibly worse. This commit therefore inserts a check for there being no callbacks that can be invoked immediately. This bug is unlikely to occur -- you have to get a new callback between the time rcu_sched_qs() or rcu_bh_qs() was called, but before we get to __rcu_process_callbacks(). It was detected by the addition of RCU-bh testing to rcutorture, which in turn was instigated by Iftekhar Ahmed's mutation testing. Although this bug was made much more likely by 915e8a4f (rcu: Remove fastpath from __rcu_process_callbacks()), this did not cause the bug, but rather made it much more probable. That said, it takes more than 40 hours of rcutorture testing, on average, for this bug to appear, so this fix cannot be considered an emergency. Signed-off-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by:
Josh Triplett <josh@joshtriplett.org> Signed-off-by:
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Alex Deucher authored
commit 39fa10f7 upstream. Since we are messing with state in the worker. v2: drop the changes in the mst worker Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Vincent Fann authored
commit 1277fa2a upstream. Several of these drivers have there TX randomly blocked for 3~5 seconds while measuring tx throughput (iperf). The root couse happens in rtl_pci_flush(). The function uses a while-loop to wait for TX queue length to decrease to 0. The TX queue length counts the number of packets that are queued in the driver. The driver relys on the TX OK interrupt to return skb and reduce TX queue length. The interrupt subroutine disables interupts, reads the interrupt registers, and then clears the registers in the beginning of _rtl_pci_interrupt(). After all interupts process are finished, the driver invokes enable_interrupt() to enable interupts. This behavior is normal for an interrupt subroutine. But enable_interrupt() invokes clear_interrupt() again. This unexpected interrupt clearing may cleari me fresh TX OK interrupts. These missing interrupts cause TX queue length to never reduce to 0i, which causes rtl_pci_flush() to be stuck in unterminated while-loop. This patch removes clear_interrupt() in enable_interrupt() to avoid this behavior. Signed-off-by:
Vincent Fann <vincent_fann@realtek.com> Signed-off-by:
Shao Fu <shaofu@realtek.com> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
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Gregory CLEMENT authored
commit ce2f6ea1 upstream. The commit df59fa7f "spi: orion: support armada extended baud rates" was too optimistic for the maximum baud rate that the Armada SoCs can support. According to the hardware datasheet the maximum frequency supported by the Armada 370 SoC is tclk/4. But for the Armada XP, Armada 38x and Armada 39x SoCs the limitation is 50MHz and for the Armada 375 it is tclk/15. Currently the armada-370-spi compatible is only used by the Armada 370 and the Armada XP device tree. On Armada 370, tclk cannot be higher than 200MHz. In order to be able to handle both SoCs, we can take the minimum of 50MHz and tclk/4. A proper solution is adding a compatible string for each SoC, but it can't be done as a fix for compatibility reason (we can't modify device tree that have been already released) and it will be part of a separate patch. Fixes: df59fa7f (spi: orion: support armada extended baud rates) Reported-by:
Kostya Porotchkin <kostap@marvell.com> Signed-off-by:
Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by:
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Nicolas Ferre authored
commit 8687634b upstream. In RS485 mode, we may want to set the delay_rts_after_send value to 0. In the datasheet, the 0 value is said to "disable" the Transmitter Timeguard but this is exactly the expected behavior if we want no delay... Moreover, if the value was set to non-zero value by device-tree or earlier ioctl command, it was impossible to change it back to zero. Reported-by:
Sami Pietikäinen <Sami.Pietikainen@wapice.com> Signed-off-by:
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David Fries authored
commit f7134eea upstream. A temperature conversion can take 750 ms and when possible the w1_therm slave driver drops the bus_mutex to allow other bus operations, but that includes operations such as a periodic slave search, which can remove this slave when it is no longer detected. If that happens the sl->family_data will be freed and set to NULL causing w1_slave_show to crash when it wakes up. Signed-off-by:
David Fries <David@Fries.net> Reported-By:
Thorsten Bschorr <thorsten@bschorr.de> Tested-by:
Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by:
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Tomas Winkler authored
commit fe292283 upstream. HW has to be in known state before the initialisation sequence is started. The polling step for settling aliveness was set to 200ms while in practise this can be done in up to 30msecs. Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
Barak Yoresh <barak.yoresh@intel.com> Signed-off-by:
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Rafael J. Wysocki authored
commit 08249651 upstream. Refine the mechanism introduced by commit f244d8b6 ("ACPIPHP / radeon / nouveau: Fix VGA switcheroo problem related to hotplug") to propagate the ignore_hotplug setting of the device to its parent bridge in case hotplug notifications related to the graphics adapter switching are given for the bridge rather than for the device itself (they need to be ignored in both cases). Link: https://bugzilla.kernel.org/show_bug.cgi?id=61891 Link: https://bugs.freedesktop.org/show_bug.cgi?id=88927 Fixes: b440bde7 ("PCI: Add pci_ignore_hotplug() to ignore hotplug events for a device") Reported-and-tested-by:
tiagdtd-lava <tiagdtd-lava@yahoo.de> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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Mimi Zohar authored
commit f2b3dee4 upstream. The call to asymmetric_key_hex_to_key_id() from ca_keys_setup() silently fails with -ENOMEM. Instead of dynamically allocating memory from a __setup function, this patch defines a variable and calls __asymmetric_key_hex_to_key_id(), a new helper function, directly. This bug was introduced by 'commit 46963b77 ("KEYS: Overhaul key identification when searching for asymmetric keys")'. Changelog: - for clarification, rename hexlen to asciihexlen in asymmetric_key_hex_to_key_id() - add size argument to __asymmetric_key_hex_to_key_id() - David Howells - inline __asymmetric_key_hex_to_key_id() - David Howells - remove duplicate strlen() calls Acked-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by:
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Mimi Zohar authored
commit cd025f7f upstream. Include don't appraise or measure rules for the NSFS filesystem in the builtin ima_tcb and ima_appraise_tcb policies. Changelog: - Update documentation Signed-off-by:
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Roberto Sassu authored
commit 6438de9f upstream. This patch adds a rule in the default measurement policy to skip inodes in the cgroupfs filesystem. Measurements for this filesystem can be avoided, as all the digests collected have the same value of the digest of an empty file. Furthermore, this patch updates the documentation of IMA policies in Documentation/ABI/testing/ima_policy to make it consistent with the policies set in security/integrity/ima/ima_policy.c. Signed-off-by:
Roberto Sassu <rsassu@suse.de> Signed-off-by:
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Paolo Bonzini authored
commit 69a12200 upstream. The argument to KVM_GET_DIRTY_LOG is a memslot id; it may not match the position in the memslots array, which is sorted by gfn. Reviewed-by:
James Hogan <james.hogan@imgtec.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
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Bart Van Assche authored
commit a44074f1 upstream. Although it is possible to let SRP I/O continue if a reconnect results in a reduction of the number of channels, the current code does not handle this scenario correctly. Instead of making the reconnect code more complex, consider this as a reconnection failure. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com> Signed-off-by:
Doug Ledford <dledford@redhat.com> Signed-off-by:
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Bart Van Assche authored
commit c014c8cd upstream. Reception of a DREQ message only causes the state of a single channel to change. Hence move the 'connected' member variable from the target to the channel data structure. This patch avoids that following false positive warning can be reported by srp_destroy_qp(): WARNING: at drivers/infiniband/ulp/srp/ib_srp.c:617 srp_destroy_qp+0xa6/0x120 [ib_srp]() Call Trace: [<ffffffff8106e10f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff8106e16a>] warn_slowpath_null+0x1a/0x20 [<ffffffffa0440226>] srp_destroy_qp+0xa6/0x120 [ib_srp] [<ffffffffa0440322>] srp_free_ch_ib+0x82/0x1e0 [ib_srp] [<ffffffffa044408b>] srp_create_target+0x7ab/0x998 [ib_srp] [<ffffffff81346f60>] dev_attr_store+0x20/0x30 [<ffffffff811dd90f>] sysfs_write_file+0xef/0x170 [<ffffffff8116d248>] vfs_write+0xc8/0x190 [<ffffffff8116d411>] sys_write+0x51/0x90 Signed-off-by:
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Bart Van Assche authored
commit 8de9fe3a upstream. Avoid that receiving a DREQ while RDMA channels are being established causes target->qp_in_error to be reset. Signed-off-by:
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Bart Van Assche authored
commit fb49c8bb upstream. Fix a scsi_get_host() / scsi_host_put() imbalance in the error path of srp_create_target(). See also patch "IB/srp: Avoid that I/O hangs due to a cable pull during LUN scanning" (commit ID 34aa654e). Signed-off-by:
Sagi Grimberg <sagig@mellanox.com> Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com> Signed-off-by:
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Bart Van Assche authored
commit 535fb906 upstream. Avoid that srp_terminate_io() can get invoked while srp_queuecommand() is in progress. This patch avoids that an I/O timeout can trigger the following kernel warning: WARNING: at drivers/infiniband/ulp/srp/ib_srp.c:1447 srp_terminate_io+0xef/0x100 [ib_srp]() Call Trace: [<ffffffff814c65a2>] dump_stack+0x4e/0x68 [<ffffffff81051f71>] warn_slowpath_common+0x81/0xa0 [<ffffffff8105204a>] warn_slowpath_null+0x1a/0x20 [<ffffffffa075f51f>] srp_terminate_io+0xef/0x100 [ib_srp] [<ffffffffa07495da>] __rport_fail_io_fast+0xba/0xc0 [scsi_transport_srp] [<ffffffffa0749a90>] rport_fast_io_fail_timedout+0xe0/0xf0 [scsi_transport_srp] [<ffffffff8106e09b>] process_one_work+0x1db/0x780 [<ffffffff8106e75b>] worker_thread+0x11b/0x450 [<ffffffff81073c64>] kthread+0xe4/0x100 [<ffffffff814cf26c>] ret_from_fork+0x7c/0xb0 See also patch "scsi_transport_srp: Add transport layer error handling" (commit ID 29c17324). Signed-off-by:
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Bart Van Assche authored
commit be34c62d upstream. Introduce the helper function srp_wait_for_queuecommand(). Move the definition of scsi_request_fn_active(). Add a comment above srp_wait_for_queuecommand() that support for scsi-mq needs to be added. This patch does not change any functionality. A second call to srp_wait_for_queuecommand() will be introduced in the next patch. Signed-off-by:
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Zhichang Yuan authored
commit 5dbb4c61 upstream. 41f8bba7 ("of/pci: Add pci_register_io_range() and pci_pio_to_address()") added support for systems with several I/O ranges described by OF bindings. It modified pci_address_to_pio() look up the io_range for a given CPU physical address, but the conversion was wrong. Fix the conversion of address to I/O port. [bhelgaas: changelog] Fixes: 41f8bba7 ("of/pci: Add pci_register_io_range() and pci_pio_to_address()") Signed-off-by:
Zhichang Yuan <yuanzhichang@hisilicon.com> Signed-off-by:
Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by:
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Axel Lin authored
commit 12c35005 upstream. WM8955_K_8_0_MASK bits is controlled by WM8955_PLL_CONTROL_3 rather than WM8955_PLL_CONTROL_2. Signed-off-by:
Axel Lin <axel.lin@ingics.com> Acked-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
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Eric W. Biederman authored
commit 1b852bce upstream. Fresh mounts of proc and sysfs are a very special case that works very much like a bind mount. Unfortunately the current structure can not preserve the MNT_LOCK... mount flags. Therefore refactor the logic into a form that can be modified to preserve those lock bits. Add a new filesystem flag FS_USERNS_VISIBLE that requires some mount of the filesystem be fully visible in the current mount namespace, before the filesystem may be mounted. Move the logic for calling fs_fully_visible from proc and sysfs into fs/namespace.c where it has greater access to mount namespace state. Signed-off-by:
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