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2017-10-02mtd: gpmi: fsl,legacy-bch-geometry independent of nand-on-flash-bbtMax Krummenacher
The device tree property fsl,legacy-bch-geometry was only evaluated when nand-on-flash-bbt was also defined. This looks wrong. In mainline (as of 4.12) fsl,legacy-bch-geometry doesn't exist, its functionality seems to be taken over by the fsl,use-minimum-ecc property and it is used independent of nand-on-flash-bbt. The move of code gets also rid of the following compiler warning: drivers/mtd/nand/gpmi-nand/gpmi-nand.c:2274:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (of_property_read_bool(this->dev->of_node, ^~ drivers/mtd/nand/gpmi-nand/gpmi-nand.c:2278:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if (of_property_read_bool(this->dev->of_node, ^~ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Stefan Agner <stefan.agner@toradex.com>
2017-10-02regulator: pfuze100: Apalis iMX6: Fix poweroff does not release ↵Sanchayan Maity
POWER_ENABLE_MOCI Poweroff failed powering off the carrier board side of things and did not deassert POWER_ENABLE_MOCI on poweroff. Fix this. Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
2017-10-02of: fdt: fix compiler warningMax Krummenacher
Backport 78de28c67 introduced the following compiler warning. The later function prototype was changed to return a void* while in 4.1 the function does not return a value. drivers/of/fdt.c: In function '__unflatten_device_tree': include/linux/stddef.h:8:14: warning: 'return' with a value, in function returning void #define NULL ((void *)0) ^ drivers/of/fdt.c:416:10: note: in expansion of macro 'NULL' return NULL; ^~~~ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Stefan Agner <stefan.agner@toradex.com>
2017-10-02mtd: blkdevs: fix switch-bool compilation warningTomer Barletz
With gcc 5.1 I get: warning: switch condition has boolean value [-Wswitch-bool] Signed-off-by: Tomer Barletz <barletz@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> (cherry picked from commit cc7fce80229067890365c1ee196be5d304d36dea)
2017-10-02mtd: fsl-quadspi: fix macro collision problems with READ/WRITE"Max Krummenacher
Mainline commit 9386aae907d9ee79d54640f09d70909393e0ddeb addresses macro collisions, however the mainline and downstream kernel driver do not match. Fix the issue addressed in mainline in the downstream codebase. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Stefan Agner <stefan.agner@toradex.com>
2017-10-02Revert "mtd: fsl-quadspi: fix macro collision problems with READ/WRITE"Max Krummenacher
This reverts commit 9386aae907d9ee79d54640f09d70909393e0ddeb. The fsl-quadspi from mainline is implemented differently, so do not use it from the mainline backport. Required to also revert merge conflict resolution. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Stefan Agner <stefan.agner@toradex.com>
2017-09-27Merge remote-tracking branch 'fslc/4.1-2.0.x-imx' into toradex_4.1-2.0.x-imxMax Krummenacher
2017-09-22Merge tag 'v4.1.44' into 4.1-2.0.x-imxOtavio Salvador
Linux 4.1.44 * tag 'v4.1.44': (180 commits) Linux 4.1.44 mtd: fsl-quadspi: fix macro collision problems with READ/WRITE pinctrl: samsung: Remove bogus irq_[un]mask from resource management pinctrl: sunxi: add a missing function of A10/A20 pinctrl driver pnfs/blocklayout: require 64-bit sector_t iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter USB: Check for dropped connection before switching to full speed uas: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069 iio: light: tsl2563: use correct event code staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read USB: hcd: Mark secondary HCD as dead if the primary one died USB: serial: pl2303: add new ATEN device id USB: serial: cp210x: add support for Qivicon USB ZigBee dongle USB: serial: option: add D-Link DWM-222 device ID nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays fuse: initialize the flock flag in fuse_file on allocation iscsi-target: Fix iscsi_np reset hung task during parallel delete iscsi-target: fix memory leak in iscsit_setup_text_cmd() ... Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2017-09-12mtd: fsl-quadspi: fix macro collision problems with READ/WRITEHan Xu
[ Upstream commit 04850c4d8613127a9b488321c0ad83bff7519311 ] Change the READ/WRITE to FSL_READ/FSL_WRITE to resolve any possible namespace collisions with READ/WRITE macros (e.g., from <linux/fs.h>). Problems have been seen, for example, on mips: >> drivers/mtd/spi-nor/fsl-quadspi.c:186:5: error: 'LUT_0' undeclared (first use in this function) ((LUT_##ins) << INSTR0_SHIFT)) ^ >> drivers/mtd/spi-nor/fsl-quadspi.c:188:30: note: in expansion of macro 'LUT0' On SPARC: drivers/mtd/spi-nor/fsl-quadspi.c: In function 'fsl_qspi_init_lut': drivers/mtd/spi-nor/fsl-quadspi.c:369:1: error: 'LUT_0' undeclared (first use in this function) drivers/mtd/spi-nor/fsl-quadspi.c:418:1: error: pasting "LUT_" and "(" does not give a valid preprocessing token drivers/mtd/spi-nor/fsl-quadspi.c:418:2: error: implicit declaration of function 'LUT_' And surely on others. Fixes: d26a22d06708 ("mtd: fsl-quadspi: allow building for other ARCHes with COMPILE_TEST") Reported-by: Guenter Roeck <linux@roeck-us.net> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Han Xu <b45815@freescale.com> [Brian: rewrote commit description] Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10pinctrl: samsung: Remove bogus irq_[un]mask from resource managementThomas Gleixner
[ Upstream commit 3fa53ec2ed885b0aec3f0472e3b4a8a6f1cd748c ] The irq chip callbacks irq_request/release_resources() have absolutely no business with masking and unmasking the irq. The core code unmasks the interrupt after complete setup and masks it before invoking irq_release_resources(). The unmask is actually harmful as it happens before the interrupt is completely initialized in __setup_irq(). Remove it. Fixes: f6a8249f9e55 ("pinctrl: exynos: Lock GPIOs as interrupts when used as EINTs") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Kukjin Kim <kgene@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-gpio@vger.kernel.org Acked-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10pinctrl: sunxi: add a missing function of A10/A20 pinctrl driverIcenowy Zheng
[ Upstream commit d81ece747d8727bb8b1cfc9a20dbe62f09a4e35a ] The PH16 pin has a function with mux id 0x5, which is the DET pin of the "sim" (smart card reader) IP block. This function is missing in old versions of A10/A20 SoCs' datasheets and user manuals, so it's also missing in the old drivers. The newest A10 Datasheet V1.70 and A20 Datasheet V1.41 contain this pin function, and it's discovered during implementing R40 pinctrl driver. Add it to the driver. As we now merged A20 pinctrl driver to the A10 one, we need to only fix the A10 driver now. Fixes: f2821b1ca3a2 ("pinctrl: sunxi: Move Allwinner A10 pinctrl driver to a driver of its own") Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10iio: adc: vf610_adc: Fix VALT selection value for REFSEL bitsStefan-Gabriel Mirea
[ Upstream commit d466d3c1217406b14b834335b5b4b33c0d45bd09 ] In order to select the alternate voltage reference pair (VALTH/VALTL), the right value for the REFSEL field in the ADCx_CFG register is "01", leading to 0x800 as register mask. See section 8.2.6.4 in the reference manual[1]. [1] http://www.nxp.com/docs/en/reference-manual/VFXXXRM.pdf Fixes: a775427632fd ("iio:adc:imx: add Freescale Vybrid vf610 adc driver") Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10usb:xhci:Add quirk for Certain failing HP keyboard on reset after resumeSandeep Singh
[ Upstream commit e788787ef4f9c24aafefc480a8da5f92b914e5e6 ] Certain HP keyboards would keep inputting a character automatically which is the wake-up key after S3 resume On some AMD platforms USB host fails to respond (by holding resume-K) to USB device (an HP keyboard) resume request within 1ms (TURSM) and ensures that resume is signaled for at least 20 ms (TDRSMDN), which is defined in USB 2.0 spec. The result is that the keyboard is out of function. In SNPS USB design, the host responds to the resume request only after system gets back to S0 and the host gets to functional after the internal HW restore operation that is more than 1 second after the initial resume request from the USB device. As a workaround for specific keyboard ID(HP Keyboards), applying port reset after resume when the keyboard is plugged in. Signed-off-by: Sandeep Singh <Sandeep.Singh@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com> Reviewed-by: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet AdapterKai-Heng Feng
[ Upstream commit 7496cfe5431f21da5d27a8388c326397e3f0a5db ] Moshi USB to Ethernet Adapter internally uses a Genesys Logic hub to connect to Realtek r8153. The Realtek r8153 ethernet does not work on the internal hub, no-lpm quirk can make it work. Since another r8153 dongle at my hand does not have the issue, so add the quirk to the Genesys Logic hub instead. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10USB: Check for dropped connection before switching to full speedAlan Stern
[ Upstream commit 94c43b9897abf4ea366ed4dba027494e080c7050 ] Some buggy USB disk adapters disconnect and reconnect multiple times during the enumeration procedure. This may lead to a device connecting at full speed instead of high speed, because when the USB stack sees that a device isn't able to enumerate at high speed, it tries to hand the connection over to a full-speed companion controller. The logic for doing this is careful to check that the device is still connected. But this check is inadequate if the device disconnects and reconnects before the check is done. The symptom is that a device works, but much more slowly than it is capable of operating. The situation was made worse recently by commit 22547c4cc4fe ("usb: hub: Wait for connection to be reestablished after port reset"), which increases the delay following a reset before a disconnect is recognized, thus giving the device more time to reconnect. This patch makes the check more robust. If the device was disconnected at any time during enumeration, we will now skip the full-speed handover. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: Zdenek Kabelac <zkabelac@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10uas: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069Alan Swanson
[ Upstream commit 89f23d51defcb94a5026d4b5da13faf4e1150a6f ] Similar to commit d595259fbb7a ("usb-storage: Add ignore-residue quirk for Initio INIC-3619") for INIC-3169 in unusual_devs.h but INIC-3069 already present in unusual_uas.h. Both in same controller IC family. Issue is that MakeMKV fails during key exchange with installed bluray drive with following error: 002004:0000 Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - KEY NOT ESTABLISHED' occurred while issuing SCSI command AD010..080002400 to device 'SG:dev_11:0' Signed-off-by: Alan Swanson <reiver@improbability.net> Acked-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10iio: light: tsl2563: use correct event codeAkinobu Mita
[ Upstream commit a3507e48d3f99a93a3056a34a5365f310434570f ] The TSL2563 driver provides three iio channels, two of which are raw ADC channels (channel 0 and channel 1) in the device and the remaining one is calculated by the two. The ADC channel 0 only supports programmable interrupt with threshold settings and this driver supports the event but the generated event code does not contain the corresponding iio channel type. This is going to change userspace ABI. Hopefully fixing this to be what it should always have been won't break any userspace code. Cc: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL readArnd Bergmann
[ Upstream commit 105967ad68d2eb1a041bc041f9cf96af2a653b65 ] gcc-7 points out an older regression: drivers/staging/iio/resolver/ad2s1210.c: In function 'ad2s1210_read_raw': drivers/staging/iio/resolver/ad2s1210.c:515:42: error: '<<' in boolean context, did you mean '<' ? [-Werror=int-in-bool-context] The original code had 'unsigned short' here, but incorrectly got converted to 'bool'. This reverts the regression and uses a normal type instead. Fixes: 29148543c521 ("staging:iio:resolver:ad2s1210 minimal chan spec conversion.") Cc: stable@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10USB: hcd: Mark secondary HCD as dead if the primary one diedRafael J. Wysocki
[ Upstream commit cd5a6a4fdaba150089af2afc220eae0fef74878a ] Make usb_hc_died() clear the HCD_FLAG_RH_RUNNING flag for the shared HCD and set HCD_FLAG_DEAD for it, in analogy with what is done for the primary one. Among other thigs, this prevents check_root_hub_suspended() from returning -EBUSY for dead HCDs which helps to work around system suspend issues in some situations. This actually fixes occasional suspend failures on one of my test machines. Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10USB: serial: pl2303: add new ATEN device idGreg Kroah-Hartman
[ Upstream commit 3b6bcd3d093c698d32e93d4da57679b8fbc5e01e ] This adds a new ATEN device id for a new pl2303-based device. Reported-by: Peter Kuo <PeterKuo@aten.com.tw> Cc: stable <stable@vger.kernel.org> Cc: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10USB: serial: cp210x: add support for Qivicon USB ZigBee dongleStefan Triller
[ Upstream commit 9585e340db9f6cc1c0928d82c3a23cc4460f0a3f ] The German Telekom offers a ZigBee USB Stick under the brand name Qivicon for their SmartHome Home Base in its 1. Generation. The productId is not known by the according kernel module, this patch adds support for it. Signed-off-by: Stefan Triller <github@stefantriller.de> Reviewed-by: Frans Klaver <fransklaver@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10USB: serial: option: add D-Link DWM-222 device IDHector Martin
[ Upstream commit fd1b8668af59a11bb754a6c9b0051c6c5ce73b74 ] Add device id for D-Link DWM-222. Cc: stable@vger.kernel.org Signed-off-by: Hector Martin <marcan@marcan.st> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10iscsi-target: Fix iscsi_np reset hung task during parallel deleteNicholas Bellinger
[ Upstream commit 978d13d60c34818a41fc35962602bdfa5c03f214 ] This patch fixes a bug associated with iscsit_reset_np_thread() that can occur during parallel configfs rmdir of a single iscsi_np used across multiple iscsi-target instances, that would result in hung task(s) similar to below where configfs rmdir process context was blocked indefinately waiting for iscsi_np->np_restart_comp to finish: [ 6726.112076] INFO: task dcp_proxy_node_:15550 blocked for more than 120 seconds. [ 6726.119440] Tainted: G W O 4.1.26-3321 #2 [ 6726.125045] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6726.132927] dcp_proxy_node_ D ffff8803f202bc88 0 15550 1 0x00000000 [ 6726.140058] ffff8803f202bc88 ffff88085c64d960 ffff88083b3b1ad0 ffff88087fffeb08 [ 6726.147593] ffff8803f202c000 7fffffffffffffff ffff88083f459c28 ffff88083b3b1ad0 [ 6726.155132] ffff88035373c100 ffff8803f202bca8 ffffffff8168ced2 ffff8803f202bcb8 [ 6726.162667] Call Trace: [ 6726.165150] [<ffffffff8168ced2>] schedule+0x32/0x80 [ 6726.170156] [<ffffffff8168f5b4>] schedule_timeout+0x214/0x290 [ 6726.176030] [<ffffffff810caef2>] ? __send_signal+0x52/0x4a0 [ 6726.181728] [<ffffffff8168d7d6>] wait_for_completion+0x96/0x100 [ 6726.187774] [<ffffffff810e7c80>] ? wake_up_state+0x10/0x10 [ 6726.193395] [<ffffffffa035d6e2>] iscsit_reset_np_thread+0x62/0xe0 [iscsi_target_mod] [ 6726.201278] [<ffffffffa0355d86>] iscsit_tpg_disable_portal_group+0x96/0x190 [iscsi_target_mod] [ 6726.210033] [<ffffffffa0363f7f>] lio_target_tpg_store_enable+0x4f/0xc0 [iscsi_target_mod] [ 6726.218351] [<ffffffff81260c5a>] configfs_write_file+0xaa/0x110 [ 6726.224392] [<ffffffff811ea364>] vfs_write+0xa4/0x1b0 [ 6726.229576] [<ffffffff811eb111>] SyS_write+0x41/0xb0 [ 6726.234659] [<ffffffff8169042e>] system_call_fastpath+0x12/0x71 It would happen because each iscsit_reset_np_thread() sets state to ISCSI_NP_THREAD_RESET, sends SIGINT, and then blocks waiting for completion on iscsi_np->np_restart_comp. However, if iscsi_np was active processing a login request and more than a single iscsit_reset_np_thread() caller to the same iscsi_np was blocked on iscsi_np->np_restart_comp, iscsi_np kthread process context in __iscsi_target_login_thread() would flush pending signals and only perform a single completion of np->np_restart_comp before going back to sleep within transport specific iscsit_transport->iscsi_accept_np code. To address this bug, add a iscsi_np->np_reset_count and update __iscsi_target_login_thread() to keep completing np->np_restart_comp until ->np_reset_count has reached zero. Reported-by: Gary Guo <ghg@datera.io> Tested-by: Gary Guo <ghg@datera.io> Cc: Mike Christie <mchristi@redhat.com> Cc: Hannes Reinecke <hare@suse.de> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10iscsi-target: fix memory leak in iscsit_setup_text_cmd()Varun Prakash
[ Upstream commit ea8dc5b4cd2195ee582cae28afa4164c6dea1738 ] On receiving text request iscsi-target allocates buffer for payload in iscsit_handle_text_cmd() and assigns buffer pointer to cmd->text_in_ptr, this buffer is currently freed in iscsit_release_cmd(), if iscsi-target sets 'C' bit in text response then it will receive another text request from the initiator with ttt != 0xffffffff in this case iscsi-target will find cmd using itt and call iscsit_setup_text_cmd() which will set cmd->text_in_ptr to NULL without freeing previously allocated buffer. This patch fixes this issue by calling kfree(cmd->text_in_ptr) in iscsit_setup_text_cmd() before assigning NULL to it. For the first text request cmd->text_in_ptr is NULL as cmd is memset to 0 in iscsit_allocate_cmd(). Signed-off-by: Varun Prakash <varun@chelsio.com> Cc: <stable@vger.kernel.org> # 4.0+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10virtio_blk: fix panic in initialization error pathOmar Sandoval
[ Upstream commit 6bf6b0aa3da84a3d9126919a94c49c0fb7ee2fb3 ] If blk_mq_init_queue() returns an error, it gets assigned to vblk->disk->queue. Then, when we call put_disk(), we end up calling blk_put_queue() with the ERR_PTR, causing a bad dereference. Fix it by only assigning to vblk->disk->queue on success. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10scsi: qla2xxx: Get mutex lock before checking optrom_stateMilan P. Gandhi
[ Upstream commit c7702b8c22712a06080e10f1d2dee1a133ec8809 ] There is a race condition with qla2xxx optrom functions where one thread might modify optrom buffer, optrom_state while other thread is still reading from it. In couple of crashes, it was found that we had successfully passed the following 'if' check where we confirm optrom_state to be QLA_SREADING. But by the time we acquired mutex lock to proceed with memory_read_from_buffer function, some other thread/process had already modified that option rom buffer and optrom_state from QLA_SREADING to QLA_SWAITING. Then we got ha->optrom_buffer 0x0 and crashed the system: if (ha->optrom_state != QLA_SREADING) return 0; mutex_lock(&ha->optrom_mutex); rval = memory_read_from_buffer(buf, count, &off, ha->optrom_buffer, ha->optrom_region_size); mutex_unlock(&ha->optrom_mutex); With current optrom function we get following crash due to a race condition: [ 1479.466679] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1479.466707] IP: [<ffffffff81326756>] memcpy+0x6/0x110 [...] [ 1479.473673] Call Trace: [ 1479.474296] [<ffffffff81225cbc>] ? memory_read_from_buffer+0x3c/0x60 [ 1479.474941] [<ffffffffa01574dc>] qla2x00_sysfs_read_optrom+0x9c/0xc0 [qla2xxx] [ 1479.475571] [<ffffffff8127e76b>] read+0xdb/0x1f0 [ 1479.476206] [<ffffffff811fdf9e>] vfs_read+0x9e/0x170 [ 1479.476839] [<ffffffff811feb6f>] SyS_read+0x7f/0xe0 [ 1479.477466] [<ffffffff816964c9>] system_call_fastpath+0x16/0x1b Below patch modifies qla2x00_sysfs_read_optrom, qla2x00_sysfs_write_optrom functions to get the mutex_lock before checking ha->optrom_state to avoid similar crashes. The patch was applied and tested and same crashes were no longer observed again. Tested-by: Milan P. Gandhi <mgandhi@redhat.com> Signed-off-by: Milan P. Gandhi <mgandhi@redhat.com> Reviewed-by: Laurence Oberman <loberman@redhat.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10tg3: Fix race condition in tg3_get_stats64().Michael Chan
[ Upstream commit f5992b72ebe0dde488fa8f706b887194020c66fc ] The driver's ndo_get_stats64() method is not always called under RTNL. So it can race with driver close or ethtool reconfigurations. Fix the race condition by taking tp->lock spinlock in tg3_free_consistent() when freeing the tp->hw_stats memory block. tg3_get_stats64() is already taking tp->lock. Reported-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10sh_eth: R8A7740 supports packet shecksummingSergei Shtylyov
[ Upstream commit 0f1f9cbc04dbb3cc310f70a11cba0cf1f2109d9c ] The R8A7740 GEther controller supports the packet checksum offloading but the 'hw_crc' (bad name, I'll fix it) flag isn't set in the R8A7740 data, thus CSMR isn't cleared... Fixes: 73a0d907301e ("net: sh_eth: add support R8A7740") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10xen-netback: correctly schedule rate-limited queuesWei Liu
[ Upstream commit dfa523ae9f2542bee4cddaea37b3be3e157f6e6b ] Add a flag to indicate if a queue is rate-limited. Test the flag in NAPI poll handler and avoid rescheduling the queue if true, otherwise we risk locking up the host. The rescheduling will be done in the timer callback function. Reported-by: Jean-Louis Dupond <jean-louis@dupond.be> Signed-off-by: Wei Liu <wei.liu2@citrix.com> Tested-by: Jean-Louis Dupond <jean-louis@dupond.be> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10net: phy: Fix PHY unbind crashFlorian Fainelli
[ Upstream commit 7b9a88a390dacb37b051a7b09b9a08f546edf5eb ] The PHY library does not deal very well with bind and unbind events. The first thing we would see is that we were not properly canceling the PHY state machine workqueue, so we would be crashing while dereferencing phydev->drv since there is no driver attached anymore. Suggested-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10net: phy: Correctly process PHY_HALTED in phy_stop_machine()Florian Fainelli
[ Upstream commit 7ad813f208533cebfcc32d3d7474dc1677d1b09a ] Marc reported that he was not getting the PHY library adjust_link() callback function to run when calling phy_stop() + phy_disconnect() which does not indeed happen because we set the state machine to PHY_HALTED but we don't get to run it to process this state past that point. Fix this with a synchronous call to phy_state_machine() in order to have the state machine actually act on PHY_HALTED, set the PHY device's link down, turn the network device's carrier off and finally call the adjust_link() function. Reported-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Fixes: a390d1f379cf ("phylib: convert state_queue work to delayed_work") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10mcs7780: Fix initialization when CONFIG_VMAP_STACK is enabledThomas Jarosch
[ Upstream commit 9476d393667968b4a02afbe9d35a3558482b943e ] DMA transfers are not allowed to buffers that are on the stack. Therefore allocate a buffer to store the result of usb_control_message(). Fixes these bugreports: https://bugzilla.kernel.org/show_bug.cgi?id=195217 https://bugzilla.redhat.com/show_bug.cgi?id=1421387 https://bugzilla.redhat.com/show_bug.cgi?id=1427398 Shortened kernel backtrace from 4.11.9-200.fc25.x86_64: kernel: ------------[ cut here ]------------ kernel: WARNING: CPU: 3 PID: 2957 at drivers/usb/core/hcd.c:1587 kernel: transfer buffer not dma capable kernel: Call Trace: kernel: dump_stack+0x63/0x86 kernel: __warn+0xcb/0xf0 kernel: warn_slowpath_fmt+0x5a/0x80 kernel: usb_hcd_map_urb_for_dma+0x37f/0x570 kernel: ? try_to_del_timer_sync+0x53/0x80 kernel: usb_hcd_submit_urb+0x34e/0xb90 kernel: ? schedule_timeout+0x17e/0x300 kernel: ? del_timer_sync+0x50/0x50 kernel: ? __slab_free+0xa9/0x300 kernel: usb_submit_urb+0x2f4/0x560 kernel: ? urb_destroy+0x24/0x30 kernel: usb_start_wait_urb+0x6e/0x170 kernel: usb_control_msg+0xdc/0x120 kernel: mcs_get_reg+0x36/0x40 [mcs7780] kernel: mcs_net_open+0xb5/0x5c0 [mcs7780] ... Regression goes back to 4.9, so it's a good candidate for -stable. Though it's the decision of the maintainer. Thanks to Dan Williams for adding the "transfer buffer not dma capable" warning in the first place. It instantly pointed me in the right direction. Patch has been tested with transferring data from a Polar watch. Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10[media] saa7164: fix double fetch PCIe access conditionSteven Toth
[ Upstream commit 6fb05e0dd32e566facb96ea61a48c7488daa5ac3 ] Avoid a double fetch by reusing the values from the prior transfer. Originally reported via https://bugzilla.kernel.org/show_bug.cgi?id=195559 Thanks to Pengfei Wang <wpengfeinudt@gmail.com> for reporting. Signed-off-by: Steven Toth <stoth@kernellabs.com> Reported-by: Pengfei Wang <wpengfeinudt@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10media: lirc: LIRC_GET_REC_RESOLUTION should return microsecondsSean Young
[ Upstream commit 9f5039ba440e499d85c29b1ddbc3cbc9dc90e44b ] Since commit e8f4818895b3 ("[media] lirc: advertise LIRC_CAN_GET_REC_RESOLUTION and improve") lircd uses the ioctl LIRC_GET_REC_RESOLUTION to determine the shortest pulse or space that the hardware can detect. This breaks decoding in lirc because lircd expects the answer in microseconds, but nanoseconds is returned. Cc: <stable@vger.kernel.org> # v2.6.36+ Reported-by: Derek <user.vdr@gmail.com> Tested-by: Derek <user.vdr@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10iser-target: Avoid isert_conn->cm_id dereference in isert_login_recv_doneNicholas Bellinger
[ Upstream commit fce50a2fa4e9c6e103915c351b6d4a98661341d6 ] This patch fixes a NULL pointer dereference in isert_login_recv_done() of isert_conn->cm_id due to isert_cma_handler() -> isert_connect_error() resetting isert_conn->cm_id = NULL during a failed login attempt. As per Sagi, we will always see the completion of all recv wrs posted on the qp (given that we assigned a ->done handler), this is a FLUSH error completion, we just don't get to verify that because we deref NULL before. The issue here, was the assumption that dereferencing the connection cm_id is always safe, which is not true since: commit 4a579da2586bd3b79b025947ea24ede2bbfede62 Author: Sagi Grimberg <sagig@mellanox.com> Date: Sun Mar 29 15:52:04 2015 +0300 iser-target: Fix possible deadlock in RDMA_CM connection error As I see it, we have a direct reference to the isert_device from isert_conn which is the one-liner fix that we actually need like we do in isert_rdma_read_done() and isert_rdma_write_done(). Reported-by: Andrea Righi <righi.andrea@gmail.com> Tested-by: Andrea Righi <righi.andrea@gmail.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Cc: <stable@vger.kernel.org> # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10iscsi-target: Fix delayed logout processing greater than SECONDS_FOR_LOGOUT_COMPNicholas Bellinger
[ Upstream commit 105fa2f44e504c830697b0c794822112d79808dc ] This patch fixes a BUG() in iscsit_close_session() that could be triggered when iscsit_logout_post_handler() execution from within tx thread context was not run for more than SECONDS_FOR_LOGOUT_COMP (15 seconds), and the TCP connection didn't already close before then forcing tx thread context to automatically exit. This would manifest itself during explicit logout as: [33206.974254] 1 connection(s) still exist for iSCSI session to iqn.1993-08.org.debian:01:3f5523242179 [33206.980184] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 2100.772 msecs [33209.078643] ------------[ cut here ]------------ [33209.078646] kernel BUG at drivers/target/iscsi/iscsi_target.c:4346! Normally when explicit logout attempt fails, the tx thread context exits and iscsit_close_connection() from rx thread context does the extra cleanup once it detects conn->conn_logout_remove has not been cleared by the logout type specific post handlers. To address this special case, if the logout post handler in tx thread context detects conn->tx_thread_active has already been cleared, simply return and exit in order for existing iscsit_close_connection() logic from rx thread context do failed logout cleanup. Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Mike Christie <mchristi@redhat.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: stable@vger.kernel.org # 3.14+ Tested-by: Gary Guo <ghg@datera.io> Tested-by: Chu Yuan Lin <cyl@datera.io> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10media: platform: davinci: return -EINVAL for VPFE_CMD_S_CCDC_RAW_PARAMS ioctlPrabhakar Lad
[ Upstream commit da05d52d2f0f6bd61094a0cd045fed94bf7d673a ] this patch makes sure VPFE_CMD_S_CCDC_RAW_PARAMS ioctl no longer works for vpfe_capture driver with a minimal patch suitable for backporting. - This ioctl was never in public api and was only defined in kernel header. - The function set_params constantly mixes up pointers and phys_addr_t numbers. - This is part of a 'VPFE_CMD_S_CCDC_RAW_PARAMS' ioctl command that is described as an 'experimental ioctl that will change in future kernels'. - The code to allocate the table never gets called after we copy_from_user the user input over the kernel settings, and then compare them for inequality. - We then go on to use an address provided by user space as both the __user pointer for input and pass it through phys_to_virt to come up with a kernel pointer to copy the data to. This looks like a trivially exploitable root hole. Due to these reasons we make sure this ioctl now returns -EINVAL and backport this patch as far as possible. Fixes: 5f15fbb68fd7 ("V4L/DVB (12251): v4l: dm644x ccdc module for vpfe capture driver") Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Cc: <stable@vger.kernel.org> # for v3.7 and up Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10libata: array underflow in ata_find_dev()Dan Carpenter
[ Upstream commit 59a5e266c3f5c1567508888dd61a45b86daed0fa ] My static checker complains that "devno" can be negative, meaning that we read before the start of the loop. I've looked at the code, and I think the warning is right. This come from /proc so it's root only or it would be quite a quite a serious bug. The call tree looks like this: proc_scsi_write() <- gets id and channel from simple_strtoul() -> scsi_add_single_device() <- calls shost->transportt->user_scan() -> ata_scsi_user_scan() -> ata_find_dev() Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org # all versions at this point Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10scsi: fnic: Avoid sending reset to firmware when another reset is in progressSatish Kharat
[ Upstream commit 9698b6f473555a722bf81a3371998427d5d27bde ] This fix is to avoid calling fnic_fw_reset_handler through fnic_host_reset when a finc reset is alreay in progress. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10HID: ignore Petzl USB headlampJiri Kosina
[ Upstream commit 08f9572671c8047e7234cbf150869aa3c3d59a97 ] This headlamp contains a dummy HID descriptor which pretends to be a mouse-like device, but can't be used as a mouse at all. Reported-by: Lukas Ocilka <lukas.ocilka@suse.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10sh_eth: enable RX descriptor word 0 shift on SH7734Sergei Shtylyov
[ Upstream commit 71eae1ca77fd6be218d8a952d97bba827e56516d ] The RX descriptor word 0 on SH7734 has the RFS[9:0] field in bits 16-25 (bits 0-15 usually used for that are occupied by the packet checksum). Thus we need to set the 'shift_rd0' field in the SH7734 SoC data... Fixes: f0e81fecd4f8 ("net: sh_eth: Add support SH7734") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10vfio-pci: Handle error from pci_iomapArvind Yadav
[ Upstream commit e19f32da5ded958238eac1bbe001192acef191a2 ] Here, pci_iomap can fail, handle this case release selected pci regions and return -ENOMEM. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremapArvind Yadav
[ Upstream commit 4dcd19bfabaee8f9f4bcf203afba09b98ccbaf76 ] Here, If devm_ioremap will fail. It will return NULL. Kernel can run into a NULL-pointer dereference. This error check will avoid NULL pointer dereference. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10usb: gadget: Fix copy/pasted error messageDavid Lechner
[ Upstream commit 43aef5c2ca90535b3227e97e71604291875444ed ] This fixes an error message that was probably copied and pasted. The same message is used for both the in and out endpoints, so it makes it impossible to know which one actually failed because both cases say "IN". Make the out endpoint error message say "OUT". Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10ACPI / scan: Prefer devices without _HID/_CID for _ADR matchingRafael J. Wysocki
[ Upstream commit c2a6bbaf0c5f90463a7011a295bbdb7e33c80b51 ] The way acpi_find_child_device() works currently is that, if there are two (or more) devices with the same _ADR value in the same namespace scope (which is not specifically allowed by the spec and the OS behavior in that case is not defined), the first one of them found to be present (with the help of _STA) will be returned. This covers the majority of cases, but is not sufficient if some of the devices in question have a _HID (or _CID) returning some valid ACPI/PNP device IDs (which is disallowed by the spec) and the ASL writers' expectation appears to be that the OS will match devices without a valid ACPI/PNP device ID against a given bus address first. To cover this special case as well, modify find_child_checks() to prefer devices without ACPI/PNP device IDs over devices that have them. Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10spi: dw: Make debugfs name unique between instancesPhil Reid
[ Upstream commit 13288bdf4adbaa6bd1267f10044c1bc25d90ce7f ] Some system have multiple dw devices. Currently the driver uses a fixed name for the debugfs dir. Append dev name to the debugfs dir name to make it unique. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10vfio-pci: use 32-bit comparisons for register address for gcc-4.5Arnd Bergmann
[ Upstream commit 45e869714489431625c569d21fc952428d761476 ] Using ancient compilers (gcc-4.5 or older) on ARM, we get a link failure with the vfio-pci driver: ERROR: "__aeabi_lcmp" [drivers/vfio/pci/vfio-pci.ko] undefined! The reason is that the compiler tries to do a comparison of a 64-bit range. This changes it to convert to a 32-bit number explicitly first, as newer compilers do for themselves. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are setJordan Crouse
[ Upstream commit a6cb3b864b21b7345f824a4faa12b723c8aaf099 ] For every submission buffer object one of MSM_SUBMIT_BO_WRITE and MSM_SUBMIT_BO_READ must be set (and nothing else). If we allowed zero then the buffer object would never get queued to be unreferenced. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10drm/msm: Ensure that the hardware write pointer is validJordan Crouse
[ Upstream commit 88b333b0ed790f9433ff542b163bf972953b74d3 ] Currently the value written to CP_RB_WPTR is calculated on the fly as (rb->next - rb->start). But as the code is designed rb->next is wrapped before writing the commands so if a series of commands happened to fit perfectly in the ringbuffer, rb->next would end up being equal to rb->size / 4 and thus result in an out of bounds address to CP_RB_WPTR. The easiest way to fix this is to mask WPTR when writing it to the hardware; it makes the hardware happy and the rest of the ringbuffer math appears to work and there isn't any point in upsetting anything. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> [squash in is_power_of_2() check] Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
2017-09-10net/mlx4: Remove BUG_ON from ICM allocation routineLeon Romanovsky
[ Upstream commit c1d5f8ff80ea84768f5fae1ca9d1abfbb5e6bbaa ] This patch removes BUG_ON() macro from mlx4_alloc_icm_coherent() by checking DMA address alignment in advance and performing proper folding in case of error. Fixes: 5b0bf5e25efe ("mlx4_core: Support ICM tables in coherent memory") Reported-by: Ozgur Karatas <okaratas@member.fsf.org> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>