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Update my fork with torvalds #6
Commits on Sep 10, 2014
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xtensa/uapi: Add definition of TIOC[SG]RS485
Commit: e676253 [3/21] serial/8250: Add support for RS485 IOCTLs, adds support for RS485 ioctls for 825_core on all the archs. Unfortunaltely the definition of TIOCSRS485 and TIOCGRS485 was missing on the ioctls.h file Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
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Commits on Oct 5, 2014
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xtensa: implement pgprot_noncached
The default pgprot_noncached doesn't do anything. This leads to issues when drivers rely on it to disable caching in userspace mappings. Implement pgprot_noncached properly so that caching of userspace mappings could be controlled. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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xtensa: ISS: add BLOCK dependency to BLK_DEV_SIMDISK
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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xtensa: add seccomp, getrandom, and memfd_create syscalls
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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xtensa: xtfpga: only select ethoc when ethernet is available
Otherwise we get the following build warning: (XTENSA_PLATFORM_XTFPGA) selects ETHOC which has unmet direct dependencies (NETDEVICES && ETHERNET && HAS_IOMEM && HAS_DMA) Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Commits on Oct 11, 2014
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dm stripe: fix potential for leak in stripe_ctr error path
Fix a potential struct stripe_c leak that would occur if the chunk_size exceeded the maximum allowed by dm_set_target_max_io_len (UINT_MAX). However, in practice there is no possibility of this occuring given that chunk_size is of type uint32_t. But it is good to fix this to future-proof in case dm_set_target_max_io_len's implementation were to change. Signed-off-by: Pavitra Kumar <pavitrak@nvidia.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Commits on Oct 17, 2014
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dm bufio: change __GFP_IO to __GFP_FS in shrinker callbacks
The shrinker uses gfp flags to indicate what kind of operation can the driver wait for. If __GFP_IO flag is present, the driver can wait for block I/O operations, if __GFP_FS flag is present, the driver can wait on operations involving the filesystem. dm-bufio tested for __GFP_IO. However, dm-bufio can run on a loop block device that makes calls into the filesystem. If __GFP_IO is present and __GFP_FS isn't, dm-bufio could still block on filesystem operations if it runs on a loop block device. The change from __GFP_IO to __GFP_FS supposedly fixes one observed (though unreproducible) deadlock involving dm-bufio and loop device. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
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Commits on Oct 21, 2014
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xtensa: re-wire umount syscall to sys_oldumount
Userspace actually passes single parameter (path name) to the umount syscall, so new umount just fails. Fix it by requesting old umount syscall implementation and re-wiring umount to it. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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xtensa: xtfpga: add generic KC705 board config
This config enables most important features, NFS or FLASH rootfs and minimal debug. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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xtensa: xtfpga: add lx200 SMP DTS and defconfig
This config allows running SMP-enabled bitstream on LX200 board. NFS or FLASH rootfs, minimal debug, up to 4 cores. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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dm raid: ensure superblock's size matches device's logical block size
The dm-raid superblock (struct dm_raid_superblock) is padded to 512 bytes and that size is being used to read it in from the metadata device into one preallocated page. Reading or writing this on a 512-byte sector device works fine but on a 4096-byte sector device this fails. Set the dm-raid superblock's size to the logical block size of the metadata device, because IO at that size is guaranteed too work. Also add a size check to avoid silent partial metadata loss in case the superblock should ever grow past the logical block size or PAGE_SIZE. [includes pointer math fix from Dan Carpenter] Reported-by: "Liuhua Wang" <lwang@suse.com> Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
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Commits on Oct 23, 2014
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Merge tag 'xtensa-for-next-20141021-1' of git://github.com/jcmvbkbc/l…
…inux-xtensa into for_next Xtensa improvements for 3.18: - add seccomp, getrandom, and memfd_create syscalls; - add defconfigs for KC705 and SMP LX200; - fix ISS and xtfpga Kconfig dependencies so that more randconfigs are buildable; - fix umount syscall; - implement pgprot_noncached.
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Commits on Oct 24, 2014
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crypto: qat - Prevent dma mapping zero length assoc data
Do not attempt to dma map associated data if it is zero length. Cc: stable@vger.kernel.org Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Tested-by: Nikolay Aleksandrov <nikolay@redhat.com> Reviewed-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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crypto: qat - Enforce valid numa configuration
In a system with NUMA configuration we want to enforce that the accelerator is connected to a node with memory to avoid cross QPI memory transaction. Otherwise there is no point in using the accelerator as the encryption in software will be faster. Cc: stable@vger.kernel.org Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Tested-by: Nikolay Aleksandrov <nikolay@redhat.com> Reviewed-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Commits on Oct 28, 2014
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usb: dwc2: gadget: fix enumeration issues
Excessive debug messages might cause timing issues that prevent correct usb enumeration. This patch hides information about USB bus reset to let driver enumerate fast enough to avoid making host angry. This fixes endless enumeration and usb reset loop observed with some Linux hosts. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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Commits on Oct 29, 2014
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dm raid: fix inaccessible superblocks causing oops in configure_disca…
…rd_support Commit 48cf06b ("dm raid: add discard support for RAID levels 4, 5 and 6") did not properly handle missing metadata device(s). A failing read of the superblock causes the metadata and data devices to be removed from the dev array in struct raid_set, setting references to both devices to NULL. configure_discard_support() nonetheless tries to access the data dev unconditionally causing an oops. Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Commits on Oct 30, 2014
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arm64: psci: fix cpu_suspend to check idle state type for index
This fix rectifies the psci cpu_suspend implementation to check the PSCI power state parameter type field associated with the requested idle state index. Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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audit: AUDIT_FEATURE_CHANGE message format missing delimiting space
Add a space between subj= and feature= fields to make them parsable. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Paul Moore <pmoore@redhat.com>
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Commits on Nov 3, 2014
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USB: kobil_sct: fix non-atomic allocation in write path
Write may be called from interrupt context so make sure to use GFP_ATOMIC for all allocations in write. Fixes: 1da177e ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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USB: opticon: fix non-atomic allocation in write path
Write may be called from interrupt context so make sure to use GFP_ATOMIC for all allocations in write. Fixes: 0d930e5 ("USB: opticon: Add Opticon OPN2001 write support") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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KVM: s390: virtio_ccw: remove unused variable
Fix this warning: drivers/s390/kvm/virtio_ccw.c: In function ‘virtio_ccw_int_handler’: drivers/s390/kvm/virtio_ccw.c:891:24: warning: unused variable ‘drv’ [-Wunused-variable] struct virtio_driver *drv; Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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Merge tag 'kvm-s390-20141103' of git://git.kernel.org/pub/scm/linux/k…
…ernel/git/kvms390/linux into kvm-master Fix a build warning in virtio-ccw introduced during the merge window.
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USB: cdc-acm: add device id for GW Instek AFG-2225
Add device-id entry for GW Instek AFG-2225, which has a byte swapped bInterfaceSubClass (0x20). Reported-by: Karl Palsson <karlp@tweak.net.au> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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cdc-acm: ensure that termios get set when the port is activated
The driver wasn't properly configuring the hardware for the current termios settings under all conditions. Ensure that termios are written to the device when the port is activated. Signed-off-by: Jim Paris <jim@jtan.com> Reviewed-by: Johan Hovold <johan@kernel.org> Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb: Do not allow usb_alloc_streams on unconfigured devices
This commit fixes the following oops: [10238.622067] scsi host3: uas_eh_bus_reset_handler start [10240.766164] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd [10245.779365] usb 3-4: device descriptor read/8, error -110 [10245.883331] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd [10250.897603] usb 3-4: device descriptor read/8, error -110 [10251.058200] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 [10251.058244] IP: [<ffffffff815ac6e1>] xhci_check_streams_endpoint+0x91/0x140 <snip> [10251.059473] Call Trace: [10251.059487] [<ffffffff815aca6c>] xhci_calculate_streams_and_bitmask+0xbc/0x130 [10251.059520] [<ffffffff815aeb5f>] xhci_alloc_streams+0x10f/0x5a0 [10251.059548] [<ffffffff810a4685>] ? check_preempt_curr+0x75/0xa0 [10251.059575] [<ffffffff810a46dc>] ? ttwu_do_wakeup+0x2c/0x100 [10251.059601] [<ffffffff810a49e6>] ? ttwu_do_activate.constprop.111+0x66/0x70 [10251.059635] [<ffffffff815779ab>] usb_alloc_streams+0xab/0xf0 [10251.059662] [<ffffffffc0616b48>] uas_configure_endpoints+0x128/0x150 [uas] [10251.059694] [<ffffffffc0616bac>] uas_post_reset+0x3c/0xb0 [uas] [10251.059722] [<ffffffff815727d9>] usb_reset_device+0x1b9/0x2a0 [10251.059749] [<ffffffffc0616f42>] uas_eh_bus_reset_handler+0xb2/0x190 [uas] [10251.059781] [<ffffffff81514293>] scsi_try_bus_reset+0x53/0x110 [10251.059808] [<ffffffff815163b7>] scsi_eh_bus_reset+0xf7/0x270 <snip> The problem is the following call sequence (simplified): 1) usb_reset_device 2) usb_reset_and_verify_device 2) hub_port_init 3) hub_port_finish_reset 3) xhci_discover_or_reset_device This frees xhci->devs[slot_id]->eps[ep_index].ring for all eps but 0 4) usb_get_device_descriptor This fails 5) hub_port_init fails 6) usb_reset_and_verify_device fails, does not restore device config 7) uas_post_reset 8) xhci_alloc_streams NULL deref on the free-ed ring This commit fixes this by not allowing usb_alloc_streams to continue if the device is not configured. Note that we do allow usb_free_streams to continue after a (logical) disconnect, as it is necessary to explicitly free the streams at the xhci controller level. Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb-storage: handle a skipped data phase
Sometimes mass-storage devices using the Bulk-only transport will mistakenly skip the data phase of a command. Rather than sending the data expected by the host or sending a zero-length packet, they go directly to the status phase and send the CSW. This causes problems for usb-storage, for obvious reasons. The driver will interpret the CSW as a short data transfer and will wait to receive a CSW. The device won't have anything left to send, so the command eventually times out. The SCSI layer doesn't retry commands after they time out (this is a relatively recent change). Therefore we should do our best to detect a skipped data phase and handle it promptly. This patch adds code to do that. If usb-storage receives a short 13-byte data transfer from the device, and if the first four bytes of the data match the CSW signature, the driver will set the residue to the full transfer length and interpret the data as a CSW. This fixes Bugzilla #86611. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Tested-by: Paul Osmialowski <newchief@king.net.pl> CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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uas: Add US_FL_NO_ATA_1X quirk for 1 more Seagate model
These drives hang when receiving ATA12 commands, so set the US_FL_NO_ATA_1X quirk to filter these out. Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB: HWA: fix a warning message
We wanted to print the version as (major).(minor) but because the shift operation is higher precedence than the mask then we print (minor).(minor). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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xhci: Disable streams on Asmedia 1042 xhci controllers
Streams seem to be broken on the Asmedia 1042. An uas capable Seagate disk which is known to work fine with other controllers causes the system to freeze when connected over usb-3 with this controller, where as it works fine with uas in usb-2 ports, indicating a problem with streams. This is a bit bigger hammer then I would like to use for this, but for now it will have to make do. I've ordered a pci-e usb controller card with an Asmedia 1042, once that arrives I'll try to get streams to work (with a quirk flag if necessary) and then we can re-enable them. For now this at least makes uas capable disk enclosures work again by forcing fallback to the usb-storage driver. Reported-by: Bogdan Mihalcea <bogdan.mihalcea@infim.ro> Cc: Bogdan Mihalcea <bogdan.mihalcea@infim.ro> Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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uas: Add NO_ATA_1X for VIA VL711 devices
Just like some Seagate enclosures, these devices do not seem to grok ata pass through commands. Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb: Remove references to non-existent PLAT_S5P symbol
The PLAT_S5P Kconfig symbol was removed in commit d78c16c ("ARM: SAMSUNG: Remove remaining legacy code"). There are still some references left, fix that by replacing them with ARCH_S5PV210. Fixes: d78c16c ("ARM: SAMSUNG: Remove remaining legacy code") Reported-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb: storage: fix build warnings !CONFIG_PM
Functions fw5895_init() and config_autodelink_before_power_down() are used only when CONFIG_PM is defined. drivers/usb/storage/realtek_cr.c:699:13: warning: 'fw5895_init' defined but not used [-Wunused-function] drivers/usb/storage/realtek_cr.c:629:12: warning: 'config_autodelink_before_power_down' defined but not used [-Wunused-function] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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MAINTAINERS: Remove duplicate entry for usbip driver
The usbip driver was moved out of staging in 3.17-rc3 but the MAINTAINERS file still has the old staging entry as well as the new one. Remove the old entry. Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB: quirks: enable device-qualifier quirk for another Elan touchscreen
Currently this quirk is enabled for the model with the device id 0x0089, it is needed for the 0x009b model, which is found on the Fujitsu Lifebook u904 as well. Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB: quirks: enable device-qualifier quirk for yet another Elan touch…
…screen Yet another device affected by this. Tested-by: Kevin Fenzi <kevin@scrye.com> Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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xhci: no switching back on non-ULT Haswell
The switch back is limited to ULT even on HP. The contrary finding arose by bad luck in BIOS versions for testing. This fixes spontaneous resume from S3 on some HP laptops. Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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uas: Add US_FL_NO_ATA_1X quirk for 2 more Seagate models
These drives hang when receiving ATA12 commands, so set the US_FL_NO_ATA_1X quirk to filter these out. Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb: core: need to call usb_phy_notify_connect after device setup
Since we notify disconnecting based on the usb device is existed (port_dev->child, the child device at roothub is not NULL), we need to notify connect after device has been registered. This fixes a bug that do fast plug in/out test, and the notify_disconnect is not called due to roothub child is NULL and the enumeration has failed. Cc: v3.17+ <stable@vger.kernel.org> Signed-off-by: Tony Zheng <Tony.Zheng@freescale.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commits on Nov 4, 2014
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usb: core: notify disconnection when core detects disconnect
It is safe to call notify disconnect when the usb core thinks the device is disconnected. This commit also fixes one bug found at below situation: we have not enabled usb wakeup, we do system suspend when there is an usb device at the port, after suspend, we plug out the usb device, then plug in device again. At that time, the nofity disconnect was not called at current code, as the controller doesn't know the usb device was disconnected during the suspend, but USB core knows the port has changed during that periods. So to fix this problem, and let the usb core call notify disconnect. Cc: 3.17+ <stable@vger.kernel.org> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ARM: imx: clk-vf610: define PLL's clock tree
So far, the required PLL's (PLL1/PLL2/PLL5) have been initialized by boot loader and the kernel code defined fixed rates according to those default configurations. Beginning with the USB PLL7 the code started to initialize the PLL's itself (using imx_clk_pllv3). However, since commit dc4805c (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver) imx_clk_pllv3 no longer takes care of the ENABLE and BYPASS bits, hence the USB PLL were not configured correctly anymore. This patch not only fixes those USB PLL's, but also makes use of the imx_clk_pllv3 for all PLL's and alignes the code with the PLL support of the i.MX6 series. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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of: Fix overflow bug in string property parsing functions
The string property read helpers will run off the end of the buffer if it is handed a malformed string property. Rework the parsers to make sure that doesn't happen. At the same time add new test cases to make sure the functions behave themselves. The original implementations of of_property_read_string_index() and of_property_count_strings() both open-coded the same block of parsing code, each with it's own subtly different bugs. The fix here merges functions into a single helper and makes the original functions static inline wrappers around the helper. One non-bugfix aspect of this patch is the addition of a new wrapper, of_property_read_string_array(). The new wrapper is needed by the device_properties feature that Rafael is working on and planning to merge for v3.19. The implementation is identical both with and without the new static inline wrapper, so it just got left in to reduce the churn on the header file. Signed-off-by: Grant Likely <grant.likely@linaro.org> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Darren Hart <darren.hart@intel.com> Cc: <stable@vger.kernel.org> # v3.3+: Drop selftest hunks that don't apply
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ARM: imx: Fix the removal of CONFIG_SPI option
Since 64546e9 ("ARM: imx_v6_v7_defconfig updates") and commit 0650f85 ("ARM: imx_v4_v5_defconfig: Select CONFIG_IMX_WEIM") CONFIG_SPI selection was dropped by savedefconfig for imx_v4_v5_defconfig and imx_v6_v7_defconfig. In order to keep the same behaviour as previous kernel versions and avoid regressions, let's add CONFIG_SPI option back. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
If we hit any errors in btrfs_lookup_csums_range, we'll loop through all the csums we allocate and free them. But the code was using list_entry incorrectly, and ended up trying to free the on-stack list_head instead. This bug came from commit 0678b61 btrfs: Don't BUG_ON kzalloc error in btrfs_lookup_csums_range() Signed-off-by: Chris Mason <clm@fb.com> Reported-by: Erik Berg <btrfs@slipsprogrammoer.no> cc: stable@vger.kernel.org # 3.3 or newer
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dm thin: grab a virtual cell before looking up the mapping
Avoids normal IO racing with discard. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
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Thermal/int3403: Fix thermal hysteresis unit conversion
Thermal hysteresis represents a temperature difference. But the original code treats it as a temperature value, Convert it from tenths of degree Kelvin to Milli-Celsius by deducing 273200. This is not right. Kelvin and Celsius have same degree size. From temperature difference view, the conversion between tenths of degree Kelvin unit and Milli-Celsius unit is just to multiply 100. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
lan,Tianyu authored and Eduardo Valentin committedNov 4, 2014 Configuration menu - View commit details
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Commits on Nov 5, 2014
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Merge tag 'imx-fixes-3.18-2' of git://git.kernel.org/pub/scm/linux/ke…
…rnel/git/shawnguo/linux into fixes Merge "ARM: imx: fixes for 3.18, 2nd round" from Shawn Guo: "This is the second round of i.MX fixes for 3.18. The clk-vf610 fix is relatively big, because it needs some adaption to the change made by offending commit dc4805c (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver). And it should have been sent to you for earlier -rc inclusion, but unfortunately it got delayed for some time because Stefan wasn't aware of my email address change." The i.MX fixes for 3.18, 2nd round: - Fix a regression on Vybrid platform which is caused by commit dc4805c (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver), and results in a missing configuration on PLL clocks. - Fix a regression with i.MX defconfig files where CONFIG_SPI option gets lost accidentally. * tag 'imx-fixes-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (460 commits) ARM: imx: Fix the removal of CONFIG_SPI option ARM: imx: clk-vf610: define PLL's clock tree + Linux 3.18-rc3 Signed-off-by: Olof Johansson <olof@lixom.net>
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MAINTAINERS: update bcm2835 entry
Add Lee Jones as a new co-maintainer. The kernel.org repo moved to allow us both to push to it. Update MAINTAINERS to match. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Olof Johansson <olof@lixom.net>
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KVM: x86: Fix uninitialized op->type for some immediate values
The emulator could reuse an op->type from a previous instruction for some immediate values. If it mistakenly considers the operands as memory operands, it will performs a memory read and overwrite op->val. Consider for instance the ROR instruction - src2 (the number of times) would be read from memory instead of being used as immediate. Mark every immediate operand as such to avoid this problem. Cc: stable@vger.kernel.org Fixes: c44b4c6 Signed-off-by: Nadav Amit <namit@cs.technion.ac.il> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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arm64: compat: Enable bpf syscall
Following the arm32 commit 2d605a3 (ARM: enable bpf syscall), wire this syscall for arm64 compat as well. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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arm64: defconfig: update defconfig for 3.18
This patch enables a few things missing from our defconfig: - PCI and MSI, including support for the x-gene host controller - BPF JIT - SPI, GPIO and MMC for Seattle - GPIO for x-gene - USB for Juno - RTC It also removes HMC_DRV, which was being built as a module for some reason. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
In older versions of the IIO framework it was possible to pass a completely different set of channels to iio_buffer_register() as the one that is assigned to the IIO device. Commit 959d295 ("staging:iio: make iio_sw_buffer_preenable much more general.") introduced a restriction that requires that the set of channels that is passed to iio_buffer_register() is a subset of the channels assigned to the IIO device as the IIO core will use the list of channels that is assigned to the device to lookup a channel by scan index in iio_compute_scan_bytes(). If it can not find the channel the function will crash. This patch fixes the issue by making sure that the same set of channels is assigned to the IIO device and passed to iio_buffer_register(). Fixes the follow NULL pointer derefernce kernel crash: Unable to handle kernel NULL pointer dereference at virtual address 00000016 pgd = d53d0000 [00000016] *pgd=1534e831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 1626 Comm: bash Not tainted 3.15.0-19969-g2a180eb-dirty #9545 task: d6c124c0 ti: d539a000 task.ti: d539a000 PC is at iio_compute_scan_bytes+0x34/0xa8 LR is at iio_compute_scan_bytes+0x34/0xa8 pc : [<c03052e4>] lr : [<c03052e4>] psr: 60070013 sp : d539beb8 ip : 00000001 fp : 00000000 r10: 00000002 r9 : 00000000 r8 : 00000001 r7 : 00000000 r6 : d6dc8800 r5 : d7571000 r4 : 00000002 r3 : d7571000 r2 : 00000044 r1 : 00000001 r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 18c5387d Table: 153d004a DAC: 00000015 Process bash (pid: 1626, stack limit = 0xd539a240) Stack: (0xd539beb8 to 0xd539c000) bea0: c02fc0e4 d7571000 bec0: d76c1640 d6dc8800 d757117c 00000000 d757112c c0305b04 d76c1690 d76c1640 bee0: d7571188 00000002 00000000 d7571000 d539a000 00000000 000dd1c8 c0305d54 bf00: d7571010 0160b868 00000002 c69d3900 d7573278 d7573308 c69d3900 c01ece90 bf20: 00000002 c0103fac c0103f6c d539bf88 00000002 c69d3b00 c69d3b0c c0103468 bf40: 00000000 00000000 d7694a00 00000002 000af408 d539bf88 c000dd84 c00b2f94 bf60: d7694a00 000af408 00000002 d7694a00 d7694a00 00000002 000af408 c000dd84 bf80: 00000000 c00b32d0 00000000 00000000 00000002 b6f1aa78 00000002 000af408 bfa0: 00000004 c000dc00 b6f1aa78 00000002 00000001 000af408 00000002 00000000 bfc0: b6f1aa78 00000002 000af408 00000004 be806a4c 000a6094 00000000 000dd1c8 bfe0: 00000000 be8069cc b6e8ab77 b6ec125c 40070010 00000001 22940489 154a5007 [<c03052e4>] (iio_compute_scan_bytes) from [<c0305b04>] (__iio_update_buffers+0x248/0x438) [<c0305b04>] (__iio_update_buffers) from [<c0305d54>] (iio_buffer_store_enable+0x60/0x7c) [<c0305d54>] (iio_buffer_store_enable) from [<c01ece90>] (dev_attr_store+0x18/0x24) [<c01ece90>] (dev_attr_store) from [<c0103fac>] (sysfs_kf_write+0x40/0x4c) [<c0103fac>] (sysfs_kf_write) from [<c0103468>] (kernfs_fop_write+0x110/0x154) [<c0103468>] (kernfs_fop_write) from [<c00b2f94>] (vfs_write+0xd0/0x160) [<c00b2f94>] (vfs_write) from [<c00b32d0>] (SyS_write+0x40/0x78) [<c00b32d0>] (SyS_write) from [<c000dc00>] (ret_fast_syscall+0x0/0x30) Code: ea00000e e1a01008 e1a00005 ebfff6fc (e5d0a016) Fixes: 959d295 ("staging:iio: make iio_sw_buffer_preenable much more general.") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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staging:iio:ad5933: Drop "raw" from channel names
"raw" is the name of a channel property, but should not be part of the channel name itself. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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iio: st_sensors: Fix buffer copy
Use byte_for_channel as iterator to properly initialize the buffer. Signed-off-by: Robin van der Gracht <robin@protonic.nl> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Cc: <Stable@vger.kernel.org>
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iio: adc: mxs-lradc: Disable the clock on probe failure
We should disable lradc->clk in the case of errors in the probe function. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Cc: <Stable@vger.kernel.org>
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iio: tsl4531: Fix compiler error when CONFIG_PM_OPS is not defined
Fix the compiler error when the CONFIG_PM_OPS flag is not set. drivers/iio/light/tsl4531.c:235:8: error: ‘tsl4531_suspend’ undeclared here (not in a function) drivers/iio/light/tsl4531.c:235:8: error: ‘tsl4531_resume’ undeclared here (not in a function) Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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io: accel: kxcjk-1013: Fix iio_event_spec direction
Because IIO_EV_DIR_* are not bitmasks but enums, IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING is not equal with IIO_EV_DIR_EITHER. This could lead to potential misformatted sysfs attributes like: * in_accel_x_thresh_(null)_en * in_accel_x_thresh_(null)_period * in_accel_x_thresh_(null)_value or even memory corruption. Fixes: b4b491c (iio: accel: kxcjk-1013: Support threshold) Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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iio: as3935: allocate correct iio_device size
Signed-off-by: George McCollister <george.mccollister@gmail.com> Acked-by: Hartmut Knaack <knaack.h@gmx.de> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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staging:iio:ade7758: Fix NULL pointer deref when enabling buffer
In older versions of the IIO framework it was possible to pass a completely different set of channels to iio_buffer_register() as the one that is assigned to the IIO device. Commit 959d295 ("staging:iio: make iio_sw_buffer_preenable much more general.") introduced a restriction that requires that the set of channels that is passed to iio_buffer_register() is a subset of the channels assigned to the IIO device as the IIO core will use the list of channels that is assigned to the device to lookup a channel by scan index in iio_compute_scan_bytes(). If it can not find the channel the function will crash. This patch fixes the issue by making sure that the same set of channels is assigned to the IIO device and passed to iio_buffer_register(). Note that we need to remove the IIO_CHAN_INFO_RAW and IIO_CHAN_INFO_SCALE info attributes from the channels since we don't actually want those to be registered. Fixes the following crash: Unable to handle kernel NULL pointer dereference at virtual address 00000016 pgd = d2094000 [00000016] *pgd=16e39831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 1695 Comm: bash Not tainted 3.17.0-06329-g29461ee #9686 task: d7768040 ti: d5bd4000 task.ti: d5bd4000 PC is at iio_compute_scan_bytes+0x38/0xc0 LR is at iio_compute_scan_bytes+0x34/0xc0 pc : [<c0316de8>] lr : [<c0316de4>] psr: 60070013 sp : d5bd5ec0 ip : 00000000 fp : 00000000 r10: d769f934 r9 : 00000000 r8 : 00000001 r7 : 00000000 r6 : c8fc6240 r5 : d769f800 r4 : 00000000 r3 : d769f800 r2 : 00000000 r1 : ffffffff r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 18c5387d Table: 1209404a DAC: 00000015 Process bash (pid: 1695, stack limit = 0xd5bd4240) Stack: (0xd5bd5ec0 to 0xd5bd6000) 5ec0: d769f800 d7435640 c8fc6240 d769f984 00000000 c03175a4 d7435690 d7435640 5ee0: d769f990 00000002 00000000 d769f800 d5bd4000 00000000 000b43a8 c03177f4 5f00: d769f810 0162b8c8 00000002 c8fc7e00 d77f1d08 d77f1da8 c8fc7e00 c01faf1c 5f20: 00000002 c010694c c010690c d5bd5f88 00000002 c8fc6840 c8fc684c c0105e08 5f40: 00000000 00000000 d20d1580 00000002 000af408 d5bd5f88 c000de84 c00b76d4 5f60: d20d1580 000af408 00000002 d20d1580 d20d1580 00000002 000af408 c000de84 5f80: 00000000 c00b7a44 00000000 00000000 00000002 b6ebea78 00000002 000af408 5fa0: 00000004 c000dd00 b6ebea78 00000002 00000001 000af408 00000002 00000000 5fc0: b6ebea78 00000002 000af408 00000004 bee96a4c 000a6094 00000000 000b43a8 5fe0: 00000000 bee969cc b6e2eb77 b6e6525c 40070010 00000001 00000000 00000000 [<c0316de8>] (iio_compute_scan_bytes) from [<c03175a4>] (__iio_update_buffers+0x248/0x438) [<c03175a4>] (__iio_update_buffers) from [<c03177f4>] (iio_buffer_store_enable+0x60/0x7c) [<c03177f4>] (iio_buffer_store_enable) from [<c01faf1c>] (dev_attr_store+0x18/0x24) [<c01faf1c>] (dev_attr_store) from [<c010694c>] (sysfs_kf_write+0x40/0x4c) [<c010694c>] (sysfs_kf_write) from [<c0105e08>] (kernfs_fop_write+0x110/0x154) [<c0105e08>] (kernfs_fop_write) from [<c00b76d4>] (vfs_write+0xbc/0x170) [<c00b76d4>] (vfs_write) from [<c00b7a44>] (SyS_write+0x40/0x78) [<c00b7a44>] (SyS_write) from [<c000dd00>] (ret_fast_syscall+0x0/0x30) Fixes: 959d295 ("staging:iio: make iio_sw_buffer_preenable much more general.") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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staging:iio:ade7758: Fix check if channels are enabled in prenable
We should check if a channel is enabled, not if no channels are enabled. Fixes: 550268c ("staging:iio: scrap scan_count and ensure all drivers use active_scan_mask") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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staging:iio:ade7758: Remove "raw" from channel name
"raw" is a property of a channel, but should not be part of the name of channel. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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ARM: dts: vf610: add SD node to cosmic dts
Driver has been there since a while back, but the dts never seems to have been updated with the node (nor pinctrl). Do so now. Cc: Matt Porter <mporter@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Olof Johansson <olof@lixom.net>
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Revert "storage: Replace magic number with define in usb_stor_euscsi_…
…init()" This reverts commit bda9893 as it was incorrect. Reported-by: Mark Knibbs <markk@clara.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB: cdc-acm: only raise DTR on transitions from B0
Make sure to only raise DTR on transitions from B0 in set_termios. Also allow set_termios to be called from open with a termios_old of NULL. Note that DTR will not be raised prematurely in this case. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'iio-fixes-for-3.18b' of git://git.kernel.org/pub/scm/linux…
…/kernel/git/jic23/iio into staging-linus Jonathan writes: Second round of IIO fixes for the 3.18 cycle. * tsl4531 - fix a compile error when CONFIG_PM_OPS not set. * kxcjk-1013 - event spec direction was invalid - leading to 'interesting' attrribute names. * as3935 - sizeof(st) used instead of sizeof(*st) leading to allocation of space for a pointer rather than the structure desired. * ade7758 - Another null pointer deref fix due to different channels being provided to the the buffer register than used for the sysfs side of things. * ade7758 - Check there is a channel enabled in preenable for the buffer before doing anything. * ade7758 - Drop a stray raw from the channel name that leads to _raw_raw postfix.
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USB: storage: Fix timeout in usb_stor_euscsi_init() and usb_stor_huaw…
…ei_e220_init() The timeout argument to usb_stor_control_msg() is specified in jiffies, not milliseconds. Signed-off-by: Mark Knibbs <markk@clara.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
The USB OTG port does not work since v3.16 on omap platform. This is a regression introduced by the commit eb82a3d (phy: omap-usb2: Balance pm_runtime_enable() on probe failure and remove). This because the call to pm_runtime_enable() function is moved after the call to devm_phy_create() function, which has side effect since later in the subsequent calls of devm_phy_create() there is a check with pm_runtime_enabled() to configure few things. Fixes: eb82a3d Signed-off-by: Oussama Ghorbel <ghorbel@pivasoftware.com> Tested-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commits on Nov 6, 2014
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serial: Fix divide-by-zero fault in uart_get_divisor()
uart_get_baud_rate() will return baud == 0 if the max rate is set to the "magic" 38400 rate and the SPD_* flags are also specified. On the first iteration, if the current baud rate is higher than the max, the baud rate is clamped at the max (which in the degenerate case is 38400). On the second iteration, the now-"magic" 38400 baud rate selects the possibly higher alternate baud rate indicated by the SPD_* flag. Since only two loop iterations are performed, the loop is exited, a kernel WARNING is generated and a baud rate of 0 is returned. Reproducible with: setserial /dev/ttyS0 spd_hi base_baud 38400 Only perform the "magic" 38400 -> SPD_* baud transform on the first loop iteration, which prevents the degenerate case from recognizing the clamped baud rate as the "magic" 38400 value. Reported-by: Robert Święcki <robert@swiecki.net> Cc: <stable@vger.kernel.org> # all Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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tty: Fix high cpu load if tty is unreleaseable
Kernel oops can cause the tty to be unreleaseable (for example, if n_tty_read() crashes while on the read_wait queue). This will cause tty_release() to endlessly loop without sleeping. Use a killable sleep timeout which grows by 2n+1 jiffies over the interval [0, 120 secs.) and then jumps to forever (but still killable). NB: killable just allows for the task to be rewoken manually, not to be terminated. Cc: <stable@vger.kernel.org> # since before 2.6.32 Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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tty: Prevent "read/write wait queue active!" log flooding
Only print one warning when a task is on the read_wait or write_wait wait queue at final tty release. Cc: <stable@vger.kernel.org> # 3.4.x+ Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dma: edma: move device registration to platform code
The horrible split between the low-level part of the edma support and the dmaengine front-end driver causes problems on multiplatform kernels. This is an attempt to improve the situation slightly by only registering the dmaengine devices that are actually present. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [olof: add missing include of linux/dma-mapping.h] Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Olof Johansson <olof@lixom.net>
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tty: serial: 8250_mtk: Fix quot calculation
The calculation of value quot for highspeed register set to three was wrong. This patch fixes the calculation so that the serial port for baudrates bigger then 576000 baud is working correctly. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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tty/vt: don't set font mappings on vc not supporting this
We can call this function for a dummy console that doesn't support setting the font mapping, which will result in a null ptr BUG. So check for this case and return error for consoles w/o font mapping support. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=59321 Signed-off-by: Imre Deak <imre.deak@intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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serial: of-serial: fix uninitialized kmalloc variable
The info pointer points to an uninitialized kmalloced space. If a device doesn't have clk property, then info->clk may have unpredicated value and cause call trace. So use kzalloc to make sure it is NULL initialized. Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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crypto: caam - fix missing dma unmap on error path
If dma mapping for dma_addr_out fails, the descriptor memory is freed but the previous dma mapping for dma_addr_in remains. This patch resolves the missing dma unmap and groups resource allocations at function start. Cc: <stable@vger.kernel.org> # 3.13+ Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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hwrng: pseries - port to new read API and fix stack corruption
The add_early_randomness() function in drivers/char/hw_random/core.c passes a 16-byte buffer to pseries_rng_data_read(). Unfortunately, plpar_hcall() returns four 64-bit values and trashes 16 bytes on the stack. This bug has been lying around for a long time. It got unveiled by: commit d3cc799 Author: Amit Shah <amit.shah@redhat.com> Date: Thu Jul 10 15:42:34 2014 +0530 hwrng: fetch randomness only after device init It may trig a oops while loading or unloading the pseries-rng module for both PowerVM and PowerKVM guests. This patch does two things: - pass an intermediate well sized buffer to plpar_hcall(). This is acceptalbe since we're not on a hot path. - move to the new read API so that we know the return buffer size for sure. Cc: stable@vger.kernel.org Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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drm/i915: Disable caches for Global GTT.
Global GTT doesn't have pat_sel[2:0] so it always point to pat_sel = 000; So the only way to avoid screen corruptions is setting PAT 0 to Uncached. MOCS can still be used though. But if userspace is trusting PTE for cache selection the safest thing to do is to let caches disabled. BSpec: "For GGTT, there is NO pat_sel[2:0] from the entry, so RTL will always use the value corresponding to pat_sel = 000" - System agent ggtt writes (i.e. cpu gtt mmaps) already work before this patch, i.e. the same uncached + snooping access like on gen6/7 seems to be in effect. - So this just fixes blitter/render access. Again it looks like it's not just uncached access, but uncached + snooping. So we can still hold onto all our assumptions wrt cpu clflushing on LLC machines. v2: Cleaner patch as suggested by Chris. v3: Add Daniel's comment Reference: https://bugs.freedesktop.org/show_bug.cgi?id=85576 Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: James Ausmus <james.ausmus@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Stable@vger.kernel.org Tested-by: James Ausmus <james.ausmus@intel.com> Reviewed-by: James Ausmus <james.ausmus@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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drm/i915: vlv: fix gunit HW state corruption during S4 suspend
During S4 freeze we don't call intel_suspend_complete(), which would save the gunit HW state, but during S4 thaw/restore events we call intel_resume_prepare() which restores it, thus ending up in a corrupted HW state. Fix this by calling intel_suspend_complete() from the corresponding freeze_late event handler. The issue was introduced in commit 016970b Author: Sagar Kamble <sagar.a.kamble@intel.com> Date: Wed Aug 13 23:07:06 2014 +0530 CC: Sagar Kamble <sagar.a.kamble@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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drm/i915: safeguard against too high minimum brightness
Never trust (your interpretation of) the VBT. Regression from commit 6dda730 Author: Jani Nikula <jani.nikula@intel.com> Date: Tue Jun 24 18:27:40 2014 +0300 drm/i915: respect the VBT minimum backlight brightness causing div by zero if VBT minimum brightness equals maximum brightness. Despite my attempts I've failed in my detective work to figure out what the root cause is. This is not the real fix, but we have to do something. Reported-by: Mike Auty <mike.auty@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=86551 Cc: stable@vger.kernel.org (v3.17+) Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Merge tag 'usb-serial-3.18-rc4' of git://git.kernel.org/pub/scm/linux…
…/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for v3.18-rc4 Two fixes of non-atomic allocations in write paths. Signed-off-by: Johan Hovold <johan@kernel.org>
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tty: Fix pty master poll() after slave closes v2
Commit f95499c ("n_tty: Don't wait for buffer work in read() loop") introduces a race window where a pty master can be signalled that the pty slave was closed before all the data that the slave wrote is delivered. Commit f8747d4 ("tty: Fix pty master read() after slave closes") fixed the problem in case of n_tty_read, but the problem still exists for n_tty_poll. This can be seen by running 'for ((i=0; i<100;i++));do ./test.py ;done' where test.py is: import os, select, pty (pid, pty_fd) = pty.fork() if pid == 0: os.write(1, 'This string should be received by parent') else: poller = select.epoll() poller.register( pty_fd, select.EPOLLIN ) ready = poller.poll( 1 * 1000 ) for fd, events in ready: if not events & select.EPOLLIN: print 'missed POLLIN event' else: print os.read(fd, 100) poller.close() The string from the slave is missed several times. This patch takes the same approach as the fix for read and special cases this condition for poll. Tested on 3.16. Signed-off-by: Francesco Ruggeri <fruggeri@arista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'fixes-for-v3.18-rc4' of git://git.kernel.org/pub/scm/linux…
…/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for v3.18-rc4 A single fix this for dwc2 this time. Because of excessive debugging messages, dwc2 would sometimes fail enumeration. The fix is simple, just converting a dev_info() into dev_dbg(). Signed-off-by: Felipe Balbi <balbi@ti.com>
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USB: cdc-acm: add quirk for control-line state requests
Add new quirk for devices that cannot handle control-line state requests. Note that we currently send these requests to all devices, regardless of whether they claim to support it, but that errors are only logged if support is claimed. Since commit 0943d8e ("USB: cdc-acm: use tty-port dtr_rts"), which only changed the timings for these requests slightly, this has been reported to cause occasional firmware crashes on Simtec Electronics Entropy Key devices after re-enumeration. Enable the quirk for this device. Reported-by: Nix <nix@esperi.org.uk> Tested-by: Nix <nix@esperi.org.uk> Cc: stable <stable@vger.kernel.org> # v3.16 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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drm/radeon: set correct CE ram size for CIK
CE ram size is 32k/0k/0k for GFX/CS0/CS1 with CIK Ported from amdgpu driver. Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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drm/radeon: make sure mode init is complete in bandwidth_update
The power management code calls into the display code for certain things. If certain power management sysfs attributes are called before the driver has finished initializing all of the hardware we can run into problems with uninitialized modesetting state. Add a check to make sure modesetting init has completed to the bandwidth update callbacks to fix this. Can be triggered by the tlp and laptop start up scripts depending on the timing. bugs: https://bugzilla.kernel.org/show_bug.cgi?id=83611 https://bugs.freedesktop.org/show_bug.cgi?id=85771 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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drm/radeon: use gart for DMA IB tests
Use gart rather than vram to avoid having to deal with the HDP cache. Port of adfed2b (drm/radeon: use gart memory for DMA ring tests) to the IB tests. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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drm/radeon: add missing crtc unlock when setting up the MC
Need to unlock the crtc after updating the blanking state. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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Commits on Nov 7, 2014
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Merge branch 'drm-fixes-3.18' of git://people.freedesktop.org/~agd5f/…
…linux into drm-fixes - fix missing crtc unlock in MC setup - set optimal CE ram config - use gart rather than vram for DMA IB tests to avoid coherency issues with HDP - fix a crasher with laptop mode and TDP scripts * 'drm-fixes-3.18' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: add missing crtc unlock when setting up the MC drm/radeon: use gart for DMA IB tests drm/radeon: make sure mode init is complete in bandwidth_update drm/radeon: set correct CE ram size for CIK
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sysfs: driver core: Fix glue dir race condition by gdp_mutex
There is a race condition when removing glue directory. It can be reproduced in following test: path 1: Add first child device device_add() get_device_parent() /*find parent from glue_dirs.list*/ list_for_each_entry(k, &dev->class->p->glue_dirs.list, entry) if (k->parent == parent_kobj) { kobj = kobject_get(k); break; } .... class_dir_create_and_add() path2: Remove last child device under glue dir device_del() cleanup_device_parent() cleanup_glue_dir() kobject_put(glue_dir); If path2 has been called cleanup_glue_dir(), but not call kobject_put(glue_dir), the glue dir is still in parent's kset list. Meanwhile, path1 find the glue dir from the glue_dirs.list. Path2 may release glue dir before path1 call kobject_get(). So kernel will report the warning and bug_on. This is a "classic" problem we have of a kref in a list that can be found while the last instance could be removed at the same time. This patch reuse gdp_mutex to fix this race condition. The following calltrace is captured in kernel 3.4, but the latest kernel still has this bug. ----------------------------------------------------- <4>[ 3965.441471] WARNING: at ...include/linux/kref.h:41 kobject_get+0x33/0x40() <4>[ 3965.441474] Hardware name: Romley <4>[ 3965.441475] Modules linked in: isd_iop(O) isd_xda(O)... ... <4>[ 3965.441605] Call Trace: <4>[ 3965.441611] [<ffffffff8103717a>] warn_slowpath_common+0x7a/0xb0 <4>[ 3965.441615] [<ffffffff810371c5>] warn_slowpath_null+0x15/0x20 <4>[ 3965.441618] [<ffffffff81215963>] kobject_get+0x33/0x40 <4>[ 3965.441624] [<ffffffff812d1e45>] get_device_parent.isra.11+0x135/0x1f0 <4>[ 3965.441627] [<ffffffff812d22d4>] device_add+0xd4/0x6d0 <4>[ 3965.441631] [<ffffffff812d0dbc>] ? dev_set_name+0x3c/0x40 .... <2>[ 3965.441912] kernel BUG at ..../fs/sysfs/group.c:65! <4>[ 3965.441915] invalid opcode: 0000 [#1] SMP ... <4>[ 3965.686743] [<ffffffff811a677e>] sysfs_create_group+0xe/0x10 <4>[ 3965.686748] [<ffffffff810cfb04>] blk_trace_init_sysfs+0x14/0x20 <4>[ 3965.686753] [<ffffffff811fcabb>] blk_register_queue+0x3b/0x120 <4>[ 3965.686756] [<ffffffff812030bc>] add_disk+0x1cc/0x490 .... ------------------------------------------------------- Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com> Cc: <stable@vger.kernel.org> #3.4+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB: Update default usb-storage delay_use value in kernel-parameters.txt
Back in 2010 the default usb-storage delay_use time was reduced from 5 to 1 second (commit a4a47bc), but kernel-parameters.txt wasn't updated to reflect that. Signed-off-by: Mark Knibbs <markk@clara.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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thermal: imx: correct driver load sequence for cpu cooling
thermal driver should be regisetered after cpufreq driver has been registered and probed. Doing so is to make sure that thermal driver can get the max cpu cooling states correctly when calling get_property. Signed-off-by: Bai Ping <b51503@freescale.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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thermal: exynos: use correct offset for TMU_CONTROL register on Exyno…
…s5260 In exynos5260_tmu_registers tmu_ctrl entry is erroneously assigned twice. The second assignment (to EXYNOS_TMU_REG_CONTROL1 define which represents 0x24 value) overrides the first one (to EXYNOS_TMU_REG_CONTROL define which represents 0x20 value) which results in the wrong (according to the Exynos5260 SoC documentation that I have) offset being used for TMU_CONTROL register. Fix it by removing the wrong assignment and then remove no longer used EXYNOS_TMU_REG_CONTROL1 define. Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Amit Daniel Kachhap <amit.daniel@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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tiny: reverse logic for DISABLE_DEV_COREDUMP
It's desirable for allnconfig and tinyconfig targets to result in the least amount of code possible. DISABLE_DEV_COREDUMP exists as a way to switch off DEV_COREDUMP regardless if any drivers select WANT_DEV_COREDUMP. This patch renames the option to ENABLE_DEV_COREDUMP and setting it to 'n' (as in allnconfig or tinyconfig) will effectively disable device coredump. Cc: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Aristeu Rozanski <arozansk@redhat.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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tiny: rename ENABLE_DEV_COREDUMP to ALLOW_DEV_COREDUMP
The ENABLE_DEV_COREDUMP option is misleading as it implies that it gets the framework enabled, this isn't true it just allows it to get enabled if a driver needs it. Rename it to ALLOW_DEV_COREDUMP to better capture its semantics. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commits on Nov 9, 2014
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ARM: dts: zynq: Enable PL clocks for Parallella
The Parallella board comes with a U-Boot bootloader that loads one of two predefined FPGA bitstreams before booting the kernel. Both define an AXI interface to the on-board Epiphany processor. Enable clocks FCLK0..FCLK3 for the Programmable Logic by default. Otherwise accessing, e.g., the ESYSRESET register freezes the board, as seen with the Epiphany SDK tools e-reset and e-hw-rev, using /dev/mem. Cc: <stable@vger.kernel.org> # 3.17.x Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Olof Johansson <olof@lixom.net>
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imx: thermal: imx_get_temp might be called before sensor clock is pre…
…pared imx_get_temp might be called before the sensor clock is prepared thus resulting in a timeout of the first attempt to read temp: thermal thermal_zone0: failed to read out thermal zone 0 Happened to me on a Utilite Standard with IMX6 Dual SoC. Reason is that in imx_thermal_probe thermal_zone_device_register is called before the sensor clock is prepared. thermal_zone_device_register however calls thermal_zone_device_update which eventually calls imx_get_temp. Fix this by preparing the clock before calling thermal_zone_device_register. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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Merge tag 'usb-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel…
…/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some USB fixes for 3.18-rc4. Just a bunch of little fixes resolving reported issues and new device ids for existing drivers. Full details are in the shortlog" * tag 'usb-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits) USB: Update default usb-storage delay_use value in kernel-parameters.txt USB: cdc-acm: add quirk for control-line state requests phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly USB: storage: Fix timeout in usb_stor_euscsi_init() and usb_stor_huawei_e220_init() USB: cdc-acm: only raise DTR on transitions from B0 Revert "storage: Replace magic number with define in usb_stor_euscsi_init()" usb: core: notify disconnection when core detects disconnect usb: core: need to call usb_phy_notify_connect after device setup uas: Add US_FL_NO_ATA_1X quirk for 2 more Seagate models xhci: no switching back on non-ULT Haswell USB: quirks: enable device-qualifier quirk for yet another Elan touchscreen USB: quirks: enable device-qualifier quirk for another Elan touchscreen MAINTAINERS: Remove duplicate entry for usbip driver usb: storage: fix build warnings !CONFIG_PM usb: Remove references to non-existent PLAT_S5P symbol uas: Add NO_ATA_1X for VIA VL711 devices xhci: Disable streams on Asmedia 1042 xhci controllers USB: HWA: fix a warning message uas: Add US_FL_NO_ATA_1X quirk for 1 more Seagate model usb-storage: handle a skipped data phase ...
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Merge tag 'tty-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel…
…/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are some tiny serial/tty fixes for 3.18-rc4 that resolve some reported issues" * tag 'tty-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: Fix pty master poll() after slave closes v2 serial: of-serial: fix uninitialized kmalloc variable tty/vt: don't set font mappings on vc not supporting this tty: serial: 8250_mtk: Fix quot calculation tty: Prevent "read/write wait queue active!" log flooding tty: Fix high cpu load if tty is unreleaseable serial: Fix divide-by-zero fault in uart_get_divisor()
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Merge tag 'staging-3.18-rc4' of git://git.kernel.org/pub/scm/linux/ke…
…rnel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are some staging/iio fixes for 3.18-rc4. Nothing major, just a few bugfixes of things that have been reported" * tag 'staging-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging:iio:ade7758: Remove "raw" from channel name staging:iio:ade7758: Fix check if channels are enabled in prenable staging:iio:ade7758: Fix NULL pointer deref when enabling buffer iio: as3935: allocate correct iio_device size io: accel: kxcjk-1013: Fix iio_event_spec direction iio: tsl4531: Fix compiler error when CONFIG_PM_OPS is not defined iio: adc: mxs-lradc: Disable the clock on probe failure iio: st_sensors: Fix buffer copy staging:iio:ad5933: Drop "raw" from channel names staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
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Merge tag 'driver-core-3.18-rc4' of git://git.kernel.org/pub/scm/linu…
…x/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are 3 tiny fixes for 3.18-rc4. One fixes up a long-stading race condition in the driver core for removing directories in /sys/devices/virtual/ and the other 2 fix up the wording of a new Kconfig option that was added in 3.18-rc1" * tag 'driver-core-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: tiny: rename ENABLE_DEV_COREDUMP to ALLOW_DEV_COREDUMP tiny: reverse logic for DISABLE_DEV_COREDUMP sysfs: driver core: Fix glue dir race condition by gdp_mutex
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…
…/git/mason/linux-btrfs Pull btrfs fix from Chris Mason: "It's a one liner for an error cleanup path that leads to crashes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
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Merge branch 'devicetree/merge' of git://git.kernel.org/pub/scm/linux…
…/kernel/git/glikely/linux Pull devicetree bugfix from Grant Likely: "One buffer overflow bug that shouldn't be left around" * 'devicetree/merge' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: of: Fix overflow bug in string property parsing functions
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Merge tag 'armsoc-for-rc4' of git://git.kernel.org/pub/scm/linux/kern…
…el/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Another quiet week: - a fix to silence edma probe error on non-supported platforms from Arnd - a fix to enable the PL clock for Parallella, to make mainline usable with the SDK. - a somewhat verbose fix for the PLL clock tree on VF610 - enabling of SD/MMC on one of the VF610-based boards (for testing) - a fix for i.MX where CONFIG_SPI used to be implicitly enabled and now needs to be added to the defconfig instead - another maintainer added for bcm2835: Lee Jones" * tag 'armsoc-for-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: dts: zynq: Enable PL clocks for Parallella dma: edma: move device registration to platform code ARM: dts: vf610: add SD node to cosmic dts MAINTAINERS: update bcm2835 entry ARM: imx: Fix the removal of CONFIG_SPI option ARM: imx: clk-vf610: define PLL's clock tree
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/…
…git/arm64/linux Pull arm64 fixes from Catalin Marinas: - enable bpf syscall for compat - cpu_suspend fix when checking the idle state type - defconfig update * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: defconfig: update defconfig for 3.18 arm64: compat: Enable bpf syscall arm64: psci: fix cpu_suspend to check idle state type for index
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Commits on Nov 10, 2014
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Merge tag 'drm-intel-fixes-2014-11-07' of git://anongit.freedesktop.o…
…rg/drm-intel into drm-fixes Black screen, screen corruption, hardware state corruption fixes. * tag 'drm-intel-fixes-2014-11-07' of git://anongit.freedesktop.org/drm-intel: drm/i915: safeguard against too high minimum brightness drm/i915: vlv: fix gunit HW state corruption during S4 suspend drm/i915: Disable caches for Global GTT.
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mfd: stmpe: Fix STMPE24xx GPMR LSB
The least significat byte of the GPIO value read register on the STMPE24xx series is on addres 0xA4 not 0xA5. Correct against datasheet and tested on the STMPE2401 hardware. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd: rtsx: Fix build warnings for !PM
rtsx_pci_power_off() is called only from rtsx_pci_suspend(), which isn't built when PM is disabled. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd: viperboard: Fix platform-device id collision
Allow more than one viperboard to be connected by registering with PLATFORM_DEVID_AUTO instead of PLATFORM_DEVID_NONE. The subdevices are currently registered with PLATFORM_DEVID_NONE, which will cause a name collision on the platform bus when a second viperboard is plugged in: viperboard 1-2.4:1.0: version 0.00 found at bus 001 address 004 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 181 at /home/johan/work/omicron/src/linux/fs/sysfs/dir.c:31 sysfs_warn_dup+0x74/0x84() sysfs: cannot create duplicate filename '/bus/platform/devices/viperboard-gpio' Modules linked in: i2c_viperboard viperboard netconsole [last unloaded: viperboard] CPU: 0 PID: 181 Comm: bash Tainted: G W 3.17.0-rc6 #1 [<c0016bf4>] (unwind_backtrace) from [<c0013860>] (show_stack+0x20/0x24) [<c0013860>] (show_stack) from [<c04305f8>] (dump_stack+0x24/0x28) [<c04305f8>] (dump_stack) from [<c0040fb4>] (warn_slowpath_common+0x80/0x98) [<c0040fb4>] (warn_slowpath_common) from [<c004100c>] (warn_slowpath_fmt+0x40/0x48) [<c004100c>] (warn_slowpath_fmt) from [<c016f1bc>] (sysfs_warn_dup+0x74/0x84) [<c016f1bc>] (sysfs_warn_dup) from [<c016f548>] (sysfs_do_create_link_sd.isra.2+0xcc/0xd0) [<c016f548>] (sysfs_do_create_link_sd.isra.2) from [<c016f588>] (sysfs_create_link+0x3c/0x48) [<c016f588>] (sysfs_create_link) from [<c02867ec>] (bus_add_device+0x12c/0x1e0) [<c02867ec>] (bus_add_device) from [<c0284820>] (device_add+0x410/0x584) [<c0284820>] (device_add) from [<c0289440>] (platform_device_add+0xd8/0x26c) [<c0289440>] (platform_device_add) from [<c02a5ae4>] (mfd_add_device+0x240/0x344) [<c02a5ae4>] (mfd_add_device) from [<c02a5ce0>] (mfd_add_devices+0xb8/0x110) [<c02a5ce0>] (mfd_add_devices) from [<bf00d1c8>] (vprbrd_probe+0x160/0x1b0 [viperboard]) [<bf00d1c8>] (vprbrd_probe [viperboard]) from [<c030c000>] (usb_probe_interface+0x1bc/0x2a8) [<c030c000>] (usb_probe_interface) from [<c028768c>] (driver_probe_device+0x14c/0x3ac) [<c028768c>] (driver_probe_device) from [<c02879e4>] (__driver_attach+0xa4/0xa8) [<c02879e4>] (__driver_attach) from [<c0285698>] (bus_for_each_dev+0x70/0xa4) [<c0285698>] (bus_for_each_dev) from [<c0287030>] (driver_attach+0x2c/0x30) [<c0287030>] (driver_attach) from [<c030a288>] (usb_store_new_id+0x170/0x1ac) [<c030a288>] (usb_store_new_id) from [<c030a2f8>] (new_id_store+0x34/0x3c) [<c030a2f8>] (new_id_store) from [<c02853ec>] (drv_attr_store+0x30/0x3c) [<c02853ec>] (drv_attr_store) from [<c016eaa8>] (sysfs_kf_write+0x5c/0x60) [<c016eaa8>] (sysfs_kf_write) from [<c016dc68>] (kernfs_fop_write+0xd4/0x194) [<c016dc68>] (kernfs_fop_write) from [<c010fe40>] (vfs_write+0xb4/0x1c0) [<c010fe40>] (vfs_write) from [<c01104a8>] (SyS_write+0x4c/0xa0) [<c01104a8>] (SyS_write) from [<c000f900>] (ret_fast_syscall+0x0/0x48) ---[ end trace 98e8603c22d65817 ]--- viperboard 1-2.4:1.0: Failed to add mfd devices to core. viperboard: probe of 1-2.4:1.0 failed with error -17 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd: max77693: Use proper regmap for handling MUIC interrupts
Interrupts coming from Maxim77693 MUIC block (MicroUSB Interface Controller) were not handled at all because wrong regmap was used for MUIC's regmap_irq_chip. The MUIC component of Maxim 77693 uses different I2C address thus second regmap is created and used by max77693 extcon driver. The registers for MUIC interrupts are also in that block and should be handled by that second regmap. However the regmap irq chip for MUIC was configured with default regmap which could not read MUIC registers. Fixes: 342d669 ("mfd: max77693: Handle IRQs using regmap") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd: max77693: Fix always masked MUIC interrupts
All interrupts coming from MUIC were ignored because interrupt source register was masked. The Maxim 77693 has a "interrupt source" - a separate register and interrupts which give information about PMIC block triggering the individual interrupt (charger, topsys, MUIC, flash LED). By default bootloader could initialize this register to "mask all" value. In such case (observed on Trats2 board) MUIC interrupts won't be generated regardless of their mask status. Regmap irq chip was unmasking individual MUIC interrupts but the source was masked Before introducing regmap irq chip this interrupt source was unmasked, read and acked. Reading and acking is not necessary but unmasking is. Fixes: 342d669 ("mfd: max77693: Handle IRQs using regmap") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd: twl4030-power: Fix poweroff with PM configuration enabled
Commit e7cd1d1 ("mfd: twl4030-power: Add generic reset configuration") enabled configuring the PM features for twl4030. This caused poweroff command to fail on devices that have the BCI charger on twl4030 wired, or have power wired for VBUS. Instead of powering off, the device reboots. This is because voltage is detected on charger or VBUS with the default bits enabled for the power transition registers. To fix the issue, let's just clear VBUS and CHG bits as we want poweroff command to keep the system powered off. Fixes: e7cd1d1 ("mfd: twl4030-power: Add generic reset configuration") Cc: stable@vger.kernel.org # v3.16+ Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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dm btree: fix a recursion depth bug in btree walking code
The walk code was using a 'ro_spine' to hold it's locked btree nodes. But this data structure is designed for the rolling lock scheme, and as such automatically unlocks blocks that are two steps up the call chain. This is not suitable for the simple recursive walk algorithm, which retraces its steps. This code is only used by the persistent array code, which in turn is only used by dm-cache. In order to trigger it you need to have a mapping tree that is more than 2 levels deep; which equates to 8-16 million cache blocks. For instance a 4T ssd with a very small block size of 32k only just triggers this bug. The fix just places the locked blocks on the stack, and stops using the ro_spine altogether. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
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tracing: Do not busy wait in buffer splice
On a !PREEMPT kernel, attempting to use trace-cmd results in a soft lockup: # trace-cmd record -e raw_syscalls:* -F false NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [trace-cmd:61] ... Call Trace: [<ffffffff8105b580>] ? __wake_up_common+0x90/0x90 [<ffffffff81092e25>] wait_on_pipe+0x35/0x40 [<ffffffff810936e3>] tracing_buffers_splice_read+0x2e3/0x3c0 [<ffffffff81093300>] ? tracing_stats_read+0x2a0/0x2a0 [<ffffffff812d10ab>] ? _raw_spin_unlock+0x2b/0x40 [<ffffffff810dc87b>] ? do_read_fault+0x21b/0x290 [<ffffffff810de56a>] ? handle_mm_fault+0x2ba/0xbd0 [<ffffffff81095c80>] ? trace_event_buffer_lock_reserve+0x40/0x80 [<ffffffff810951e2>] ? trace_buffer_lock_reserve+0x22/0x60 [<ffffffff81095c80>] ? trace_event_buffer_lock_reserve+0x40/0x80 [<ffffffff8112415d>] do_splice_to+0x6d/0x90 [<ffffffff81126971>] SyS_splice+0x7c1/0x800 [<ffffffff812d1edd>] tracesys_phase2+0xd3/0xd8 The problem is this: tracing_buffers_splice_read() calls ring_buffer_wait() to wait for data in the ring buffers. The buffers are not empty so ring_buffer_wait() returns immediately. But tracing_buffers_splice_read() calls ring_buffer_read_page() with full=1, meaning it only wants to read a full page. When the full page is not available, tracing_buffers_splice_read() tries to wait again with ring_buffer_wait(), which again returns immediately, and so on. Fix this by adding a "full" argument to ring_buffer_wait() which will make ring_buffer_wait() wait until the writer has left the reader's page, i.e. until full-page reads will succeed. Link: http://lkml.kernel.org/r/1415645194-25379-1-git-send-email-rabin@rab.in Cc: stable@vger.kernel.org # 3.16+ Fixes: b1169cc ("tracing: Remove mock up poll wait function") Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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tracing: Do not risk busy looping in buffer splice
If the read loop in trace_buffers_splice_read() keeps failing due to memory allocation failures without reading even a single page then this function will keep busy looping. Remove the risk for that by exiting the function if memory allocation failures are seen. Link: http://lkml.kernel.org/r/1415309167-2373-2-git-send-email-rabin@rab.in Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Commits on Nov 11, 2014
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param: fix crash on bad kernel arguments
Currently if the user passes an invalid value on the kernel command line then the kernel will crash during argument parsing. On most systems this is very hard to debug because the console hasn't been initialized yet. This is a regression due to commit 51e158c ("param: hand arguments after -- straight to init") which, in response to the systemd debug controversy, made it possible to explicitly pass arguments to init. To achieve this parse_args() was extended from simply returning an error code to returning a pointer. Regretably the new init args logic does not perform a proper validity check on the pointer resulting in a crash. This patch fixes the validity check. Should the check fail then no arguments will be passed to init. This is reasonable and matches how the kernel treats its own arguments (i.e. no error recovery). Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Cc: stable@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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hwmon: (ibmpowernv) Quieten when probing finds no device
Because we build kernels with drivers built in for many platforms, it's normal for the ibmpowernv driver to be loaded on systems that don't have the appropriate hardware. Currently the driver spams the log with: ibmpowernv ibmpowernv.0: Opal node 'sensors' not found ibmpowernv: Platfrom driver probe failed But there is no error, this machine is not a powernv and doesn't have the hardware. So change the sensors message to dev_dbg(), and only print an error about the probe failing if it's not ENODEV. Also fix the spelling of "Platfrom" and print the actual error value. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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hwmon: (pwm-fan) Fix suspend/resume behavior
The state of a PWM output is not clearly defined after resume. Some PWM drivers do not restore the duty cycle upon resume, thus it is necessary to manually restore the correct value. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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hwmon: (fam15h_power) Fix NB device ID for F16h M30h
F3 device ID is wrongly included in fam15h_power_id_table for F16h M30h. It should be F4 device ID. Fix this. Signed-off-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Audit rules disappear when an inode they watch is evicted from the cache. This is likely not what we want. The guilty commit is "fsnotify: allow marks to not pin inodes in core", which didn't take into account that audit_tree adds watches with a zero mask. Adding any mask should fix this. Fixes: 90b1e7a ("fsnotify: allow marks to not pin inodes in core") Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: stable@vger.kernel.org # 2.6.36+ Signed-off-by: Paul Moore <pmoore@redhat.com>
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Commits on Nov 12, 2014
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Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie: "Radeon and i915 fixes. I probably should have sent these earlier, but nothing too urgent in them: - i915: blackscreen and corruption fixes - radeon: oops, locking and stability" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: add missing crtc unlock when setting up the MC drm/radeon: use gart for DMA IB tests drm/radeon: make sure mode init is complete in bandwidth_update drm/radeon: set correct CE ram size for CIK drm/i915: safeguard against too high minimum brightness drm/i915: vlv: fix gunit HW state corruption during S4 suspend drm/i915: Disable caches for Global GTT.
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Merge tag 'mfd-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kern…
…el/git/lee/mfd Pull MFD fixes from Lee Jones: - register offset fix for stmpe - eradicate build warning when !PM in rtsx_pcr - fix device ID collision when multiple boards are connected in viperboard - use correct Regmap handle - fixing unhanded IRQs in max77693 - unmask MUIC IRQs in max77693 - clear VBUS & CHG bits so board doesn't reboot instead of poweroff in twl4030 * tag 'mfd-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: mfd: twl4030-power: Fix poweroff with PM configuration enabled mfd: max77693: Fix always masked MUIC interrupts mfd: max77693: Use proper regmap for handling MUIC interrupts mfd: viperboard: Fix platform-device id collision mfd: rtsx: Fix build warnings for !PM mfd: stmpe: Fix STMPE24xx GPMR LSB
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selinux: convert WARN_ONCE() to printk() in selinux_nlmsg_perm()
Convert WARN_ONCE() to printk() in selinux_nlmsg_perm(). After conversion from audit_log() in commit e173fb2, WARN_ONCE() was deemed too alarmist, so switch it to printk(). Signed-off-by: Richard Guy Briggs <rgb@redhat.com> [PM: Changed to printk(WARNING) so we catch all of the different invalid netlink messages. In Richard's defense, he brought this point up earlier, but I didn't understand his point at the time.] Signed-off-by: Paul Moore <pmoore@redhat.com>
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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git…
…/evalenti/linux-soc-thermal Pull thermal driver fixes from Eduardo Valentin: "This week we have few fixes: - fix in IMX thermal driver to do the correct loading sequence with CPUfreq - fix in Exynos related to TMU_CONTROL offset in Exynos5260 - fix the unit conversion in int3403" [ Still pulling from Eduardo as Rui Zhang is on a business trip and has troubles with his machine ] * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: imx: thermal: imx_get_temp might be called before sensor clock is prepared thermal: exynos: use correct offset for TMU_CONTROL register on Exynos5260 thermal: imx: correct driver load sequence for cpu cooling Thermal/int3403: Fix thermal hysteresis unit conversion
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Merge tag 'hwmon-for-linus-v3.18-rc5' of git://git.kernel.org/pub/scm…
…/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - fix PCI device ID in fam15h_power driver - fix suspend/resume behavior in pwm-fan driver - reduce logging noise created by ibmpowernv driver * tag 'hwmon-for-linus-v3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (fam15h_power) Fix NB device ID for F16h M30h hwmon: (pwm-fan) Fix suspend/resume behavior hwmon: (ibmpowernv) Quieten when probing finds no device
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/ker…
…nel/git/rusty/linux Pull kernel argument parsing fix from Rusty Russell: "Nasty, stupid bug, and I've suddenly had two reports" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: param: fix crash on bad kernel arguments
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Merge tag 'trace-fixes-v3.18-rc4' of git://git.kernel.org/pub/scm/lin…
…ux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Rabin Vincent found a way that tracing could cause an infinite loop in the kernel. The splice logic wants a full page from the ring buffer but the ring_buffer_wait() returns when there's any data in the ring buffer. The splice code would then continue the loop waiting for a full page. But if a full page never happens, the splice code will never sleep and just continue to loop. There's another case that Rabin fixed that could loop if there's no memory and kmalloc() constantly returns NULL" * tag 'trace-fixes-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Do not risk busy looping in buffer splice tracing: Do not busy wait in buffer splice
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: - stack corruption fix for pseries hwrng driver - add missing DMA unmap in caam crypto driver - fix NUMA crash in qat crypto driver - fix buggy mapping of zero-length associated data in qat crypto driver * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: hwrng: pseries - port to new read API and fix stack corruption crypto: caam - fix missing dma unmap on error path crypto: qat - Enforce valid numa configuration crypto: qat - Prevent dma mapping zero length assoc data
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Merge tag 'xtensa-20141109' of git://github.com/czankel/xtensa-linux
Pull Xtensa fixes from Chris Zankel: - fix umount syscall - fix ISS and xtfpga Kconfig dependencies so that more randconfigs are buildable - add seccomp, getrandom, and memfd_create syscalls - add defconfigs for KC705 and SMP LX200 - implement pgprot_noncached * tag 'xtensa-20141109' of git://github.com/czankel/xtensa-linux: xtensa: xtfpga: add lx200 SMP DTS and defconfig xtensa: xtfpga: add generic KC705 board config xtensa: re-wire umount syscall to sys_oldumount xtensa: xtfpga: only select ethoc when ethernet is available xtensa: add seccomp, getrandom, and memfd_create syscalls xtensa: ISS: add BLOCK dependency to BLK_DEV_SIMDISK xtensa: implement pgprot_noncached xtensa/uapi: Add definition of TIOC[SG]RS485
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini: "Two fixes --- one of them not exactly a one liner, but things are calming down on the KVM front at last" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix uninitialized op->type for some immediate values KVM: s390: virtio_ccw: remove unused variable
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Commits on Nov 13, 2014
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Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/s…
…elinux into for-linus
James Morris committedNov 13, 2014 Configuration menu - View commit details
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Merge tag 'dm-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kerne…
…l/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - stable fix for dm-thin that avoids normal IO racing with discard - stable fix for a dm-cache related bug in dm-btree walking code that results from using very large fast device (eg 4T) with a very small cache blocksize (eg 32K) -- this is a very uncommon configuration - a couple fixes for dm-raid (one for stable and the other addresses a crash in 3.18-rc1 code) - stable fix for dm-thinp that addresses a very rare dm-bufio bug having to do with memory reclaimation (via shrinker) when using dm-thinp ontop of loopback devices - fix a leak in dm-stripe target constructor's error path * tag 'dm-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm btree: fix a recursion depth bug in btree walking code dm thin: grab a virtual cell before looking up the mapping dm raid: fix inaccessible superblocks causing oops in configure_discard_support dm raid: ensure superblock's size matches device's logical block size dm bufio: change __GFP_IO to __GFP_FS in shrinker callbacks dm stripe: fix potential for leak in stripe_ctr error path
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Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/a…
…udit Pull audit fixes from Paul Moore: "After he sent the initial audit pull request for 3.18, Eric asked me to take over the management of the audit tree, hence this pull request to fix a couple of problems with audit. As you can see below, the changes are minimal: adding some whitespace to a string so userspace parses it correctly, and fixing a problem with audit's usage of fsnotify that was causing audit watch rules to be lost. Neither of these patches were very controversial on the mailing lists and they fix real problems, getting them into 3.18 would be a good thing" * 'stable-3.18' of git://git.infradead.org/users/pcmoore/audit: audit: keep inode pinned audit: AUDIT_FEATURE_CHANGE message format missing delimiting space
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…
…/git/jmorris/linux-security Pull SELinux fixlet from James Morris: "WARN_ONCE() here will unnecessarily terrify users" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: selinux: convert WARN_ONCE() to printk() in selinux_nlmsg_perm()
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