- 20 3月, 2015 10 次提交
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由 Christophe Vu-Brugier 提交于
A check that rejects a CDB with FUA bit set if no write cache is emulated was added by the following commit: fde9f50f target: Add sanity checks for DPO/FUA bit usage The condition is as follows: if (!dev->dev_attrib.emulate_fua_write || !dev->dev_attrib.emulate_write_cache) However, this check is wrong if the backend device supports WCE but "emulate_write_cache" is disabled. This patch uses se_dev_check_wce() (previously named spc_check_dev_wce) to invoke transport->get_write_cache() if the device has a write cache or check the "emulate_write_cache" attribute otherwise. Reported-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NChristophe Vu-Brugier <cvubrugier@fastmail.fm> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Nicholas Bellinger 提交于
This patch fixes a NULL pointer dereference triggered by a late target_configure_device() -> alloc_workqueue() failure that results in target_free_device() being called with DF_CONFIGURED already set, which subsequently OOPses in destroy_workqueue() code. Currently this only happens at modprobe target_core_mod time when core_dev_setup_virtual_lun0() -> target_configure_device() fails, and the explicit target_free_device() gets called. To address this bug originally introduced by commit 0fd97ccf, go ahead and move DF_CONFIGURED to end of target_configure_device() code to handle this special failure case. Reported-by: NClaudio Fleiner <cmf@daterainc.com> Cc: Claudio Fleiner <cmf@daterainc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <stable@vger.kernel.org> # v3.7+ Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Nicholas Bellinger 提交于
This patch fixes a NULL pointer dereference OOPs with pSCSI backends within target_core_stat.c code. The bug is caused by a configfs attr read if no pscsi_dev_virt->pdv_sd has been configured. Reported-by: NOlaf Hering <olaf@aepfle.de> Cc: <stable@vger.kernel.org> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Dan Carpenter 提交于
This patch adds a missing set of conditional check braces in ft_invl_hw_context() originally introduced by commit dcd998cc when handling DDP failures in ft_recv_write_data() code. commit dcd998cc Author: Kiran Patil <kiran.patil@intel.com> Date: Wed Aug 3 09:20:01 2011 +0000 tcm_fc: Handle DDP/SW fc_frame_payload_get failures in ft_recv_write_data Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Cc: Kiran Patil <kiran.patil@intel.com> Cc: <stable@vger.kernel.org> # 3.1+ Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Bart Van Assche 提交于
This patch fixes a se_cmd->cmd_kref leak buf when se_sess->sess_tearing_down is true within target_get_sess_cmd() submission path code. This se_cmd reference leak can occur during active session shutdown when ack_kref=1 is passed by target_submit_cmd_[map_sgls,tmr]() callers. Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com> Cc: <stable@vger.kernel.org> # 3.6+ Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Bart Van Assche 提交于
This patch changes loopback, usb-gadget, vhost-scsi and xen-scsiback fabric code to invoke transport_register_session() instead of the unprotected flavour, to ensure se_tpg->session_lock is taken when adding new session list nodes to se_tpg->tpg_sess_list. Note that since these four fabric drivers already hold their own internal TPG mutexes when accessing se_tpg->tpg_sess_list, and consist of a single se_session created through configfs attribute access, no list corruption can currently occur. So for correctness sake, go ahead and use the se_tpg->session_lock protected version for these four fabric drivers. Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Bart Van Assche 提交于
This patch fixes the incorrect use of __transport_register_session() in tcm_qla2xxx_check_initiator_node_acl() code, that does not perform explicit se_tpg->session_lock when accessing se_tpg->tpg_sess_list to add new se_sess nodes. Given that tcm_qla2xxx_check_initiator_node_acl() is not called with qla_hw->hardware_lock held for all accesses of ->tpg_sess_list, the code should be using transport_register_session() instead. Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: <stable@vger.kernel.org> # 3.5+ Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Nicholas Bellinger 提交于
This patch fixes a iser specific logout bug where early complete() of conn->conn_logout_comp in iscsit_close_connection() was causing isert_wait4logout() to complete too soon, triggering a use after free NULL pointer dereference of iscsi_conn memory. The complete() was originally added for traditional iscsi-target when a ISCSI_LOGOUT_OP failed in iscsi_target_rx_opcode(), but given iser-target does not wait in logout failure, this special case needs to be avoided. Reported-by: NSagi Grimberg <sagig@mellanox.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Slava Shwartsman <valyushash@gmail.com> Cc: <stable@vger.kernel.org> # v3.10+ Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Nicholas Bellinger 提交于
This reverts commit 72859d91. The original patch was wrong, iscsit_close_connection() still needs to release iscsi_conn during both normal + exception IN_LOGOUT status with ib_isert enabled. The original OOPs is due to completing conn_logout_comp early within iscsit_close_connection(), causing isert_wait4logout() to complete instead of waiting for iscsit_logout_post_handler_*() to be called. Reported-by: NSagi Grimberg <sagig@mellanox.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Slava Shwartsman <valyushash@gmail.com> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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由 Nicholas Bellinger 提交于
Now that incoming FUA=1 bit check is enforced for backends with FUA or WCE disabled, go ahead and disallow the changing of related backend attributes when active fabric exports exist. This is required to avoid potential failures with existing initiator LUN registrations that have been previously created with FUA=1. Reported-by: NChristoph Hellwig <hch@lst.de> Cc: Doug Gilbert <dgilbert@interlog.com> Cc: James Bottomley <JBottomley@Parallels.com> Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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- 19 3月, 2015 7 次提交
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由 NeilBrown 提交于
The current error-path code (when gpiod_get_index() reports an error) can never free pwrseq->reset_gpios[0], but might try to tree pwrseq->reset_gpios[-1], which has unfortunate consequences. Signed-off-by: NNeilBrown <neil@brown.name> Fixes: 934f1f48Acked-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org> Reported-by: NSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
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由 Nicholas Mc Guire 提交于
Use jiffies_to_msecs for converting jiffies as it handles all of the corner cases reliably and also helps readability. The printk format is fixed up as jiffies_to_msecs returns unsigned int not unsigned long. Signed-off-by: NNicholas Mc Guire <hofrat@osadl.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ondrej Zary 提交于
This reverts commit 11ad714b because it breaks cx82310_eth. The custom USB_DEVICE_CLASS macro matches bDeviceClass, bDeviceSubClass and bDeviceProtocol but the common USB_DEVICE_AND_INTERFACE_INFO matches bInterfaceClass, bInterfaceSubClass and bInterfaceProtocol instead, which are not specified. Signed-off-by: NOndrej Zary <linux@rainbow-software.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eran Ben Elisha 提交于
Port statistics bitmap will now be initialized at port init. Even before starting the port, statistics are visible to the user and must be properly masked. Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com> Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Majd Dibbiny 提交于
For RoCE ports, we set the u32 PMA values based on u64 HCA counters. In case of overflow, according to the IB spec, we have to saturate a counter to its max value, do that. Fixes: c3779134 ('IB/mlx4: Support PMA counters for IBoE') Signed-off-by: NMajd Dibbiny <majd@mellanox.com> Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com> Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eran Ben Elisha 提交于
NUM_PORT_STATS was 9 instead of 10, which caused off-by-one bug when displaying the statistics starting from tx_chksum_offload in ethtool. Fixes: f8c6455b ('net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE') Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com> Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Moni Shoua 提交于
Processing an event is done in a different context from the one when the event was dispatched. This requires a check that the slave net device is still valid when the event is being processed. The check is done under the iboe lock which ensure correctness. Fixes: a5750090 ('IB/mlx4: Add port aggregation support') Signed-off-by: NMoni Shoua <monis@mellanox.com> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 3月, 2015 4 次提交
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由 Hans de Goede 提交于
On sun4i-a10, when GPIOs are configured as external interrupt the value for them in the data register does not seem to get updated, so set their mux to input (and restore afterwards) when reading the pin. Missed edges seem to be buffered, so this does not introduce a race condition. I've also tested this on sun5i-a13 and sun7i-a20 and those do not seem to be affected, the input value representation in the data register does seem to correctly get updated to the actual pin value while in irq mode there. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Boris Brezillon 提交于
The gpiochip_lock_as_irq call can fail and return an error, while the irq_startup is not expected to fail (returns an unsigned int which is not checked by irq core code). irq_request/release_resources functions have been created to address this problem. Move gpiochip_lock/unlock_as_irq calls into irq_request/release_resources functions to prevent using a gpio as an irq if the gpiochip_lock_as_irq call failed. Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com> Acked-by: NLudovic Desroches <ludovic.desroches@atmel.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Benjamin Tissoires 提交于
486b908d (HID: wacom: do not send pen events before touch is up/forced out) introduces a kernel oops when plugging a tablet without touch. wacom->shared is null for these devices so this leads to a null pointer exception. Change the condition to make it clear that what we need is wacom->shared not NULL. Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Robert Jarzmik 提交于
The commit breaks the legacy platforms, ie. these not using device-tree, and setting up the interrupt resources with a flag to activate edge detection. The issue was found on the zylonite platform. The reason is that zylonite uses platform resources to pass the interrupt number and the irq flags (here IORESOURCE_IRQ_HIGHEDGE). It expects the driver to request the irq with these flags, which in turn setups the irq as high edge triggered. After the patch, this was supposed to be taken care of with : irq_resflags = irqd_get_trigger_type(irq_get_irq_data(ndev->irq)); But irq_resflags is 0 for legacy platforms, while for example in arch/arm/mach-pxa/zylonite.c, in struct resource smc91x_resources[] the irq flag is specified. This breaks zylonite because the interrupt is not setup as triggered, and hardware doesn't provide interrupts. Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 3月, 2015 3 次提交
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由 Michael S. Tsirkin 提交于
Going over the virtio mmio code, I noticed that it doesn't correctly access modern device config values using "natural" accessors: it uses readb to get/set them byte by byte, while the virtio 1.0 spec explicitly states: 4.2.2.2 Driver Requirements: MMIO Device Register Layout ... The driver MUST only use 32 bit wide and aligned reads and writes to access the control registers described in table 4.1. For the device-specific configuration space, the driver MUST use 8 bit wide accesses for 8 bit wide fields, 16 bit wide and aligned accesses for 16 bit wide fields and 32 bit wide and aligned accesses for 32 and 64 bit wide fields. Borrow code from virtio_pci_modern to do this correctly. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Michal Schmidt 提交于
E1x chips (57710, 57711(E)) have no support for encapsulation offload. bnx2x incorrectly advertises the support as available. Setting of those features is conditional on "!CHIP_IS_E1x(bp)", but the bp struct is not initialized yet at this point and consequently any chip passes the check. The check must use the "chip_is_e1x" local variable instead to work correctly. Signed-off-by: NMichal Schmidt <mschmidt@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dmitry Torokhov 提交于
This reverts commit 6ab17a84 since it, according to Benjamin, causes issues with slot assignment: E: 15.669119 0000 0000 0000 # ------------ SYN_REPORT (0) ---------- E: 15.954242 0003 002f 0000 # EV_ABS / ABS_MT_SLOT 0 E: 15.954242 0003 0039 0505 # EV_ABS / ABS_MT_TRACKING_ID 505 E: 15.954242 0003 0035 3851 # EV_ABS / ABS_MT_POSITION_X 3851 E: 15.954242 0003 0036 4076 # EV_ABS / ABS_MT_POSITION_Y 4076 E: 15.954242 0003 003a 0034 # EV_ABS / ABS_MT_PRESSURE 34 E: 15.954242 0001 014a 0001 # EV_KEY / BTN_TOUCH 1 E: 15.954242 0003 0000 3851 # EV_ABS / ABS_X 3851 E: 15.954242 0003 0001 4076 # EV_ABS / ABS_Y 4076 E: 15.954242 0003 0018 0034 # EV_ABS / ABS_PRESSURE 34 E: 15.954242 0001 0145 0001 # EV_KEY / BTN_TOOL_FINGER 1 E: 15.954242 0000 0000 0000 # ------------ SYN_REPORT (0) ---------- ... (bunch of regular events)... E: 16.020614 0000 0000 0000 # ------------ SYN_REPORT (0) ---------- E: 16.043601 0003 0035 3873 # EV_ABS / ABS_MT_POSITION_X 3873 E: 16.043601 0003 0036 3903 # EV_ABS / ABS_MT_POSITION_Y 3903 E: 16.043601 0003 003a 0050 # EV_ABS / ABS_MT_PRESSURE 50 E: 16.043601 0003 0035 3032 # EV_ABS / ABS_MT_POSITION_X 3032 E: 16.043601 0003 0036 3832 # EV_ABS / ABS_MT_POSITION_Y 3832 E: 16.043601 0003 003a 0044 # EV_ABS / ABS_MT_PRESSURE 44 E: 16.043601 0003 0000 3032 # EV_ABS / ABS_X 3032 E: 16.043601 0003 0001 3832 # EV_ABS / ABS_Y 3832 E: 16.043601 0003 0018 0044 # EV_ABS / ABS_PRESSURE 44 E: 16.043601 0001 0145 0000 # EV_KEY / BTN_TOOL_FINGER 0 E: 16.043601 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1 E: 16.043601 0000 0000 0000 # ------------ SYN_REPORT (0) ---------- E: 16.068837 0003 002f 0001 # EV_ABS / ABS_MT_SLOT 1 E: 16.068837 0003 0039 0506 # EV_ABS / ABS_MT_TRACKING_ID 506 E: 16.068837 0003 0035 3912 # EV_ABS / ABS_MT_POSITION_X 3912 E: 16.068837 0003 0036 3743 # EV_ABS / ABS_MT_POSITION_Y 3743 E: 16.068837 0003 003a 0056 # EV_ABS / ABS_MT_PRESSURE 56 E: 16.068837 0003 002f 0000 # EV_ABS / ABS_MT_SLOT 0 E: 16.068837 0003 0035 3026 # EV_ABS / ABS_MT_POSITION_X 3026 E: 16.068837 0003 0036 3708 # EV_ABS / ABS_MT_POSITION_Y 3708 E: 16.068837 0003 003a 0052 # EV_ABS / ABS_MT_PRESSURE 52 E: 16.068837 0003 0000 3026 # EV_ABS / ABS_X 3026 E: 16.068837 0003 0001 3708 # EV_ABS / ABS_Y 3708 E: 16.068837 0003 0018 0052 # EV_ABS / ABS_PRESSURE 52 E: 16.068837 0000 0000 0000 # ------------ SYN_REPORT (0) ---------- Slot 0 and 1 gets inverted in the second report above, which introduces a cursor jump. The problem is that this cursor jump is often enough to leave the current widget, and X sends the scrolling events to whoever is now under the cursor. Reported-by: NBenjamin Tissoires <btissoir@redhat.com> Reported-by: NHans de Goede <hdegoede@redhat.com>
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- 16 3月, 2015 3 次提交
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由 Geert Uytterhoeven 提交于
drivers/regulator/tps65910-regulator.c: In function ‘tps65910_parse_dt_reg_data’: drivers/regulator/tps65910-regulator.c:1018: error: implicit declaration of function ‘of_get_child_by_name’ drivers/regulator/tps65910-regulator.c:1018: warning: assignment makes pointer from integer without a cast drivers/regulator/tps65910-regulator.c:1034: error: implicit declaration of function ‘of_node_put’ drivers/regulator/tps65910-regulator.c:1056: error: implicit declaration of function ‘of_property_read_u32’ Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NMark Brown <broonie@kernel.org>
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由 Dan Carpenter 提交于
If you pass an invalid string here then you probably deserve the memory corruption, but it annoys static analysis tools so lets fix it. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Krzysztof Kolasa 提交于
bad argument if(tmp)... in check_free_hole fix oops: kernel BUG at drivers/gpu/drm/drm_mm.c:305! [airlied: excellent, this was my task for today]. Signed-off-by: NKrzysztof Kolasa <kkolasa@winsoft.pl> Reviewed-by: NChris wilson <chris@chris-wilson.co.uk> Signed-off-by: NDave Airlie <airlied@redhat.com>
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- 15 3月, 2015 1 次提交
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由 Forest Wilkinson 提交于
The linux kernel has supported the TiVo Slide remote control for some time, but does not recognize the USB ID of the newer Slide Pro. This patch adds the missing data structures so the newer remote will be recognized by the driver, thereby allowing the TiVo, LiveTV, and Thumbs Up/Down buttons to be mapped with a hwdb file. Signed-off-by: NForest Wilkinson <web11.forest@tibit.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 14 3月, 2015 5 次提交
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由 Ahmed S. Darwish 提交于
A number of tx queue wake-up events went missing due to the outlined scenario below. Start state is a pool of 16 tx URBs, active tx_urbs count = 15, with the netdev tx queue open. CPU #1 [softirq] CPU #2 [softirq] start_xmit() tx_acknowledge() ................ ................ atomic_inc(&tx_urbs); if (atomic_read(&tx_urbs) >= 16) { --> atomic_dec(&tx_urbs); netif_wake_queue(); return; <-- netif_stop_queue(); } At the end, the correct state expected is a 15 tx_urbs count value with the tx queue state _open_. Due to the race, we get the same tx_urbs value but with the tx queue state _stopped_. The wake-up event is completely lost. Thus avoid hand-rolled concurrency mechanisms and use a proper lock for contexts and tx queue protection. Signed-off-by: NAhmed S. Darwish <ahmed.darwish@valeo.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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由 Michal Simek 提交于
Enable the xilinx driver for ARM64. Signed-off-by: NMichal Simek <michal.simek@xilinx.com> Acked-by: NSören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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由 Fabio Estevam 提交于
This reverts commit 2b995f63. Панов Андрей reported the following regression: "Commit 2b995f63 in 4.0.0-rc3 introduces a nasty bug in transmit, corrupting packets. To reproduce: $ dd if=/dev/zero of=zeros bs=1M count=20 $ md5sum -b zeros 8f4e33f3dc3e414ff94e5fb6905cba8c *zeros This checksum is correct. Copy file "zeros" to another host with NFS, and it gets corrupted, checksum is changed. File should be big, small amounts of transmit isn't affected. I use an i.MX6 Quad board. If this commit is reverted, all works fine." Reported-by: NПанов Андрей <rockford@yandex.ru> Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Alexey Kodanev 提交于
commit dfd8645e wrongly assumes that VXLAN_VDI_MASK includes eight lower order reserved bits of VNI field that are using for remote checksum offload. Right now, when VNI number greater then 0xffff, vxlan_udp_encap_recv() will always return with 'bad_flag' error, reducing the usable vni range from 0..16777215 to 0..65535. Also, it doesn't really check whether RCO bits processed or not. Fix it by adding new VNI mask which has all 32 bits of VNI field: 24 bits for id and 8 bits for other usage. Signed-off-by: NAlexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ameen Ali 提交于
Array index 'j' is used before limits check. Suggest put limit check before index use. Signed-off-by : <Ameenali023@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 3月, 2015 4 次提交
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由 Michael S. Tsirkin 提交于
virtio_mmio currently lacks generation support which makes multi-byte field access racy. Fix by getting the value at offset 0xfc for version 2 devices. Nothing we can do for version 1, so return generation id 0. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Michael S. Tsirkin 提交于
virtio spec requires that all drivers set DRIVER_OK before using devices. While rpmsg isn't yet included in the virtio 1 spec, previous spec versions also required this. virtio rpmsg violates this rule: is calls kick before setting DRIVER_OK. The fix isn't trivial since simply calling virtio_device_ready earlier would mean we might get an interrupt in parallel with adding buffers. Instead, split kick out to prepare+notify calls. prepare before virtio_device_ready - when we know we won't get interrupts. notify right afterwards. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com> Acked-by: NOhad Ben-Cohen <ohad@wizery.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Javier Martinez Canillas 提交于
Commit df9e26d0 ("rtc: s3c: add support for RTC of Exynos3250 SoC") added an "rtc_src" DT property to specify the clock used as a source to the S3C real-time clock. Not all SoCs needs this so commit eaf3a659 ("drivers/rtc/rtc-s3c.c: fix initialization failure without rtc source clock") changed to check the struct s3c_rtc_data .needs_src_clk to conditionally grab the clock. But that commit didn't update the data for each IP version so the RTC broke on the boards that needs a source clock. This is the case of at least Exynos5250 and Exynos5440 which uses the s3c6410 RTC IP block. This commit fixes the S3C rtc on the Exynos5250 Snow and Exynos5420 Peach Pit and Pi Chromebooks. Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Olof Johansson <olof@lixom.net> Cc: Kevin Hilman <khilman@linaro.org> Cc: Tyler Baker <tyler.baker@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jason Wang 提交于
We don't delete napi from hash list during module exit. This will cause the following panic when doing module load and unload: BUG: unable to handle kernel paging request at 0000004e00000075 IP: [<ffffffff816bd01b>] napi_hash_add+0x6b/0xf0 PGD 3c5d5067 PUD 0 Oops: 0000 [#1] SMP ... Call Trace: [<ffffffffa0a5bfb7>] init_vqs+0x107/0x490 [virtio_net] [<ffffffffa0a5c9f2>] virtnet_probe+0x562/0x791815639d880be [virtio_net] [<ffffffff8139e667>] virtio_dev_probe+0x137/0x200 [<ffffffff814c7f2a>] driver_probe_device+0x7a/0x250 [<ffffffff814c81d3>] __driver_attach+0x93/0xa0 [<ffffffff814c8140>] ? __device_attach+0x40/0x40 [<ffffffff814c6053>] bus_for_each_dev+0x63/0xa0 [<ffffffff814c7a79>] driver_attach+0x19/0x20 [<ffffffff814c76f0>] bus_add_driver+0x170/0x220 [<ffffffffa0a60000>] ? 0xffffffffa0a60000 [<ffffffff814c894f>] driver_register+0x5f/0xf0 [<ffffffff8139e41b>] register_virtio_driver+0x1b/0x30 [<ffffffffa0a60010>] virtio_net_driver_init+0x10/0x12 [virtio_net] This patch fixes this by doing this in virtnet_free_queues(). And also don't delete napi in virtnet_freeze() since it will call virtnet_free_queues() which has already did this. Fixes 91815639 ("virtio-net: rx busy polling support") Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: NJason Wang <jasowang@redhat.com> Acked-by: NMichael S. Tsirkin <mst@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 3月, 2015 3 次提交
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由 Alexey Kardashevskiy 提交于
This adds a missing break statement to VFIO_DEVICE_SET_IRQS handler without which vfio_pci_set_err_trigger() would never be called. While we are here, add another "break" to VFIO_PCI_REQ_IRQ_INDEX case so if we add more indexes later, we won't miss it. Fixes: 6140a8f5 ("vfio-pci: Add device request interface") Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
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由 Jakub Kicinski 提交于
This reverts commit e4df3a0b ("i2c: core: Dispose OF IRQ mapping at client removal time") Calling irq_dispose_mapping() will destroy the mapping and disassociate the IRQ from the IRQ chip to which it belongs. Keeping it is OK, because existent mappings are reused properly. Also, this commit breaks drivers using devm* for IRQ management on OF-based systems because devm* cleanup happens in device code, after bus's remove() method returns. Signed-off-by: NJakub Kicinski <kubakici@wp.pl> Reported-by: NSébastien Szymanski <sebastien.szymanski@armadeus.com> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com> [wsa: updated the commit message with findings fromt the other bug report] Signed-off-by: NWolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org Fixes: e4df3a0b
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由 David Vrabel 提交于
This fixes a performance regression introduced by 7fbb9d84 (xen-netback: release pending index before pushing Tx responses) Moving the notify outside of the spin locks means it can be delayed a long time (if the dealloc thread is descheduled or there is an interrupt or softirq). Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com> Reviewed-by: NZoltan Kiss <zoltan.kiss@linaro.org> Acked-by: NWei Liu <wei.liu2@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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