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2020-07-18media: atomisp: Get rid of struct pci_dev in struct atomisp_deviceAndy Shevchenko5-38/+43
struct atomisp device has struct device and struct pci_dev pointers which are basically duplicates of each other. Drop the latter in favour of the former. While here, unify pdev to be pointer to struct pci_device and reindent some (touched) lines for better readability. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: don't pass struct device_driver as parameterAndy Shevchenko3-3/+4
There is no need to pass a pointer to struct device_driver when we have an access to struct device already. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: Use proper APIs to find I²C client device by ACPI HIDAndy Shevchenko1-25/+18
There are specific ACPI and I\xB2C APIs to match device by different parameters, such as ACPI HID, and retrieve an I\xB2C client. Use them instead of home grown approach. Note, it fixes a resource leak as well. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: move CCK endpoint address to generic headerAndy Shevchenko2-4/+1
IOSF MBI header contains a lot of definitions, such as end point addresses of IPs. Move CCK address from AtomISP driver to generic header. While here, drop unused one. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: Replace last use of Intel MID APIsAndy Shevchenko2-4/+2
Intel MID special header is not in use in this driver. Replace it with a better macro for now on. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: place all gpio parsing togetherMauro Carvalho Chehab1-46/+40
Instead of parsing GPIO for two exceptions inside the logic which would be trying to use the GPIO, move the init code to the routine which adds a new gmin device. Move the notes to it too, as this helps to identify where those two GPIO settings are used, explaining why they're defaulting to -1 when not found. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: split add from find subdevMauro Carvalho Chehab1-2/+4
There's only one place where a subdev can be added: when the sensor driver registers it. Trying to do it elsewhere will cause problems, as the detection code needs to access the I2C bus in order to probe some things. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: print info if gpio0 and gpio2 were detectedMauro Carvalho Chehab1-0/+4
If the ACPI DSDT tables provide _CRS for the camera, the GPIO core code should be able to handle them automatically. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: fix call to g_frame_intervalMauro Carvalho Chehab1-1/+1
The media core has now a check if fi->pad is bigger than zero or bigger than sd->entity.num_pads, if the media controller is defined. This causes a call to g_frame_interval to return -EINVAL. Fix it by first cleaning up the struct. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: properly parse CLK PMIC on newer devicesMauro Carvalho Chehab1-2/+64
Newer devices don't place the PMIC CLK line inside an EFI var. Instead, those are found at the _PR0 table. Add a parser for it, using info stored via the DSDT table. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: Prepare sensor support for ACPI PMMauro Carvalho Chehab1-6/+83
Add support code for this driver to use ACPI power management. Yet, at least with known devices, this won't work without further changes. The rationale is that the ACPI handling code checks for the _PR? tables in order to know what is required to switch the device from power state D0 (_PR0) up to D3COLD (_PR3). The adev->flags.power_manageable is set to true if the device has a _PR0 table, which can be checked by calling acpi_device_power_manageable(adev). However, this only says that the device can be set to power off mode. At least on the DSDT tables we've seen so far, there's no _PR3 nor _PS3 (which would have a somewhat similar effect). So, using ACPI for power management won't work, except if adding an ACPI override logic somewhere. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-18media: atomisp: reorganize the code under gmin_subdev_add()Mauro Carvalho Chehab1-59/+60
The gmin_subdev_add() currently doesn't use ACPI device power management. In order to prepare for adding support for it, let's shift some things, placing the PM-related stuff at the end of the probing logic. Let's also store the current gs on a temporary var, in order to simplify the source code. Tested-by: Andy Shevchenko <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-17Merge tag 'arm-fixes-5.8-2' of ↵Linus Torvalds3-14/+20
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc into master Pull ARM SoC fixes from Arnd Bergmann: "This time there are a number of actual code fixes, plus a small set of device tree issues getting addressed: Renesas: - one defconfig cleanup to allow a later Kconfig change Intel socfpga: - enable QSPI devices on some machines - fix DTC validation warnings TI OMAP: - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target module driver - A regression fix for ti-sysc no-idle handling that caused issues compared to earlier platform data based booting - A fix for memory leak for omap_hwmod_allocate_module - Fix d_can driver probe for am437x NXP i.MX: - A couple of fixes on i.MX platform device registration code to stop the use of invalid IRQ 0. - Fix a regression seen on ls1021a platform, caused by commit 52102a3ba6a61 ("soc: imx: move cpu code to drivers/soc/imx"). - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board. Amlogic Meson: - misc DT fixes - SoC ID fixes to detect all chips correctly" * tag 'arm-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: arm64: dts: spcfpga: Align GIC, NAND and UART nodenames with dtschema ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema arm64: dts: stratix10: increase QSPI reg address in nand dts file arm64: dts: stratix10: add status to qspi dts node arm64: dts: agilex: add status to qspi dts node ARM: dts: Fix dcan driver probe failed on am437x platform ARM: OMAP2+: Fix possible memory leak in omap_hwmod_allocate_module arm64: defconfig: Enable CONFIG_PCIE_RCAR_HOST soc: imx: check ls1021a ARM: imx: Remove imx_add_imx_dma() unused irq_err argument ARM: imx: Provide correct number of resources when registering gpio devices ARM: dts: imx6qdl-gw551x: fix audio SSI bus: ti-sysc: Do not disable on suspend for no-idle bus: ti-sysc: Fix sleeping function called from invalid context for RTC quirk bus: ti-sysc: Fix wakeirq sleeping function called from invalid context ARM: dts: meson: Align L2 cache-controller nodename with dtschema arm64: dts: meson-gxl-s805x: reduce initial Mali450 core frequency arm64: dts: meson: add missing gxl rng clock soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's
2020-07-17Merge tag 'arm64-fixes' of ↵Linus Torvalds15-12/+33
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into master Pull arm64 fixes from Will Deacon: "A batch of arm64 fixes. Although the diffstat is a bit larger than we'd usually have at this stage, a decent amount of it is the addition of comments describing our syscall tracing behaviour, and also a sweep across all the modular arm64 PMU drivers to make them rebust against unloading and unbinding. There are a couple of minor things kicking around at the moment (CPU errata and module PLTs for very large modules), but I'm not expecting any significant changes now for us in 5.8. - Fix kernel text addresses for relocatable images booting using EFI and with KASLR disabled so that they match the vmlinux ELF binary. - Fix unloading and unbinding of PMU driver modules. - Fix generic mmiowb() when writeX() is called from preemptible context (reported by the riscv folks). - Fix ptrace hardware single-step interactions with signal handlers, system calls and reverse debugging. - Fix reporting of 64-bit x0 register for 32-bit tasks via 'perf_regs'. - Add comments describing syscall entry/exit tracing ABI" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: drivers/perf: Prevent forced unbinding of PMU drivers asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible() arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter() arm64: syscall: Expand the comment about ptrace and syscall(-1) arm64: ptrace: Add a comment describing our syscall entry/exit trap ABI arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return arm64: ptrace: Override SPSR.SS when single-stepping is enabled arm64: ptrace: Consistently use pseudo-singlestep exceptions drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling efi/libstub/arm64: Retain 2MB kernel Image alignment if !KASLR
2020-07-17Merge tag 'block-5.8-2020-07-17' of git://git.kernel.dk/linux-block into masterLinus Torvalds2-0/+14
Pull block fix from Jens Axboe: "Single NVMe multipath capacity fix" * tag 'block-5.8-2020-07-17' of git://git.kernel.dk/linux-block: nvme: explicitly update mpath disk capacity on revalidation
2020-07-17Merge tag 'spi-fix-v5.8-rc5' of ↵Linus Torvalds2-15/+14
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into master Pull spi fixes from Mark Brown: "A couple of small driver specific fixes for fairly minor issues" * tag 'spi-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spi-sun6i: sun6i_spi_transfer_one(): fix setting of clock rate spi: mediatek: use correct SPI_CFG2_REG MACRO
2020-07-17Merge tag 'regulator-fix-v5.8-rc5' of ↵Linus Torvalds3-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into master Pull regulator fixes from Mark Brown: "The more substantial fix here is the rename of the da903x driver which fixes a collision with the parent MFD driver name which caused issues when things were built as modules. There's also a fix for a mislableled regulator on the pmi8994 which is quite important for systems with that device" * tag 'regulator-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: MAINTAINERS: remove obsolete entry after file renaming regulator: rename da903x to da903x-regulator regulator: qcom_smd: Fix pmi8994 label
2020-07-17Merge tag 'regmap-fix-v5.8-rc5' of ↵Linus Torvalds3-25/+31
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into master Pull regmap fixes from Mark Brown: "A couple of substantial fixes here, one from Doug which fixes the debugfs code for MMIO regmaps (fortunately not the common case) and one from Marc fixing lookups of multiple regmaps for the same device (a very unusual case). There's also a fix for Kconfig to ensure we enable SoundWire properly" * tag 'regmap-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: debugfs: Don't sleep while atomic for fast_io regmaps regmap: add missing dependency on SoundWire regmap: dev_get_regmap_match(): fix string comparison
2020-07-17Merge branch 'for-linus' of ↵Linus Torvalds9-6/+47
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid into master Pull HID fixes from Jiri Kosina: - linked list race condition fix in hid-steam driver from Rodrigo Rivas Costa - assorted deviceID-specific quirks and other small cosmetic cleanups * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: HID: logitech-hidpp: avoid repeated "multiplier = " log messages HID: logitech: Use HIDPP_RECEIVER_INDEX instead of 0xff HID: quirks: Ignore Simply Automated UPB PIM HID: apple: Disable Fn-key key-re-mapping on clone keyboards MAINTAINERS: update uhid and hid-wiimote entry HID: steam: fixes race in handling device list. HID: magicmouse: do not set up autorepeat HID: alps: support devices with report id 2 HID: quirks: Always poll Obins Anne Pro 2 keyboard HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override
2020-07-17vfio/pci: fix racy on error and request eventfd ctxZeng Tao1-0/+5
The vfio_pci_release call will free and clear the error and request eventfd ctx while these ctx could be in use at the same time in the function like vfio_pci_request, and it's expected to protect them under the vdev->igate mutex, which is missing in vfio_pci_release. This issue is introduced since commit 1518ac272e78 ("vfio/pci: fix memory leaks of eventfd ctx"),and since commit 5c5866c593bb ("vfio/pci: Clear error and request eventfd ctx after releasing"), it's very easily to trigger the kernel panic like this: [ 9513.904346] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 [ 9513.913091] Mem abort info: [ 9513.915871] ESR = 0x96000006 [ 9513.918912] EC = 0x25: DABT (current EL), IL = 32 bits [ 9513.924198] SET = 0, FnV = 0 [ 9513.927238] EA = 0, S1PTW = 0 [ 9513.930364] Data abort info: [ 9513.933231] ISV = 0, ISS = 0x00000006 [ 9513.937048] CM = 0, WnR = 0 [ 9513.940003] user pgtable: 4k pages, 48-bit VAs, pgdp=0000007ec7d12000 [ 9513.946414] [0000000000000008] pgd=0000007ec7d13003, p4d=0000007ec7d13003, pud=0000007ec728c003, pmd=0000000000000000 [ 9513.956975] Internal error: Oops: 96000006 [#1] PREEMPT SMP [ 9513.962521] Modules linked in: vfio_pci vfio_virqfd vfio_iommu_type1 vfio hclge hns3 hnae3 [last unloaded: vfio_pci] [ 9513.972998] CPU: 4 PID: 1327 Comm: bash Tainted: G W 5.8.0-rc4+ #3 [ 9513.980443] Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2 CS V3.B270.01 05/08/2020 [ 9513.989274] pstate: 80400089 (Nzcv daIf +PAN -UAO BTYPE=--) [ 9513.994827] pc : _raw_spin_lock_irqsave+0x48/0x88 [ 9513.999515] lr : eventfd_signal+0x6c/0x1b0 [ 9514.003591] sp : ffff800038a0b960 [ 9514.006889] x29: ffff800038a0b960 x28: ffff007ef7f4da10 [ 9514.012175] x27: ffff207eefbbfc80 x26: ffffbb7903457000 [ 9514.017462] x25: ffffbb7912191000 x24: ffff007ef7f4d400 [ 9514.022747] x23: ffff20be6e0e4c00 x22: 0000000000000008 [ 9514.028033] x21: 0000000000000000 x20: 0000000000000000 [ 9514.033321] x19: 0000000000000008 x18: 0000000000000000 [ 9514.038606] x17: 0000000000000000 x16: ffffbb7910029328 [ 9514.043893] x15: 0000000000000000 x14: 0000000000000001 [ 9514.049179] x13: 0000000000000000 x12: 0000000000000002 [ 9514.054466] x11: 0000000000000000 x10: 0000000000000a00 [ 9514.059752] x9 : ffff800038a0b840 x8 : ffff007ef7f4de60 [ 9514.065038] x7 : ffff007fffc96690 x6 : fffffe01faffb748 [ 9514.070324] x5 : 0000000000000000 x4 : 0000000000000000 [ 9514.075609] x3 : 0000000000000000 x2 : 0000000000000001 [ 9514.080895] x1 : ffff007ef7f4d400 x0 : 0000000000000000 [ 9514.086181] Call trace: [ 9514.088618] _raw_spin_lock_irqsave+0x48/0x88 [ 9514.092954] eventfd_signal+0x6c/0x1b0 [ 9514.096691] vfio_pci_request+0x84/0xd0 [vfio_pci] [ 9514.101464] vfio_del_group_dev+0x150/0x290 [vfio] [ 9514.106234] vfio_pci_remove+0x30/0x128 [vfio_pci] [ 9514.111007] pci_device_remove+0x48/0x108 [ 9514.115001] device_release_driver_internal+0x100/0x1b8 [ 9514.120200] device_release_driver+0x28/0x38 [ 9514.124452] pci_stop_bus_device+0x68/0xa8 [ 9514.128528] pci_stop_and_remove_bus_device+0x20/0x38 [ 9514.133557] pci_iov_remove_virtfn+0xb4/0x128 [ 9514.137893] sriov_disable+0x3c/0x108 [ 9514.141538] pci_disable_sriov+0x28/0x38 [ 9514.145445] hns3_pci_sriov_configure+0x48/0xb8 [hns3] [ 9514.150558] sriov_numvfs_store+0x110/0x198 [ 9514.154724] dev_attr_store+0x44/0x60 [ 9514.158373] sysfs_kf_write+0x5c/0x78 [ 9514.162018] kernfs_fop_write+0x104/0x210 [ 9514.166010] __vfs_write+0x48/0x90 [ 9514.169395] vfs_write+0xbc/0x1c0 [ 9514.172694] ksys_write+0x74/0x100 [ 9514.176079] __arm64_sys_write+0x24/0x30 [ 9514.179987] el0_svc_common.constprop.4+0x110/0x200 [ 9514.184842] do_el0_svc+0x34/0x98 [ 9514.188144] el0_svc+0x14/0x40 [ 9514.191185] el0_sync_handler+0xb0/0x2d0 [ 9514.195088] el0_sync+0x140/0x180 [ 9514.198389] Code: b9001020 d2800000 52800022 f9800271 (885ffe61) [ 9514.204455] ---[ end trace 648de00c8406465f ]--- [ 9514.212308] note: bash[1327] exited with preempt_count 1 Cc: Qian Cai <[email protected]> Cc: Alex Williamson <[email protected]> Fixes: 1518ac272e78 ("vfio/pci: fix memory leaks of eventfd ctx") Signed-off-by: Zeng Tao <[email protected]> Signed-off-by: Alex Williamson <[email protected]>
2020-07-17media: atomisp: fix the handling of clock numberMauro Carvalho Chehab1-7/+42
Right now, the driver is not doing the right thing to detect the clock like used by the sensor, at least on devices without the gmin's EFI vars. Add some notes at the code to explain why and skip the wrong value provided by the _DSM table. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-07-17drm: sun4i: hdmi: Fix inverted HPD resultChen-Yu Tsai1-1/+1
When the extra HPD polling in sun4i_hdmi was removed, the result of HPD was accidentally inverted. Fix this by inverting the check. Fixes: bda8eaa6dee7 ("drm: sun4i: hdmi: Remove extra HPD polling") Signed-off-by: Chen-Yu Tsai <[email protected]> Tested-by: Mans Rullgard <[email protected]> Signed-off-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2020-07-17drivers/perf: Prevent forced unbinding of PMU driversQi Liu13-0/+13
Forcefully unbinding PMU drivers during perf sampling will lead to a kernel panic, because the perf upper-layer framework call a NULL pointer in this situation. To solve this issue, "suppress_bind_attrs" should be set to true, so that bind/unbind can be disabled via sysfs and prevent unbinding PMU drivers during perf sampling. Signed-off-by: Qi Liu <[email protected]> Reviewed-by: John Garry <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2020-07-16Merge tag 'drm-fixes-2020-07-17-1' of git://anongit.freedesktop.org/drm/drm ↵Linus Torvalds18-99/+152
into master Pull drm fixes from Dave Airlie: "Weekly fixes pull, big bigger than I'd normally like, but they are fairly scattered and small individually. The vmwgfx one is a black screen regression, otherwise the largest is an MST encoder fix for amdgpu which results in a WARN in some cases, and a scattering of i915 fixes. I'm tracking two regressions at the moment that hopefully we get nailed down this week for rc7. dma-buf: - sleeping atomic fix amdgpu: - Fix a race condition with KIQ - Preemption fix - Fix handling of fake MST encoders - OLED panel fix - Handle allocation failure in stream construction - Renoir SMC fix - SDMA 5.x fix i915: - FBC w/a stride fix - Fix use-after-free fix on module reload - Ignore irq enabling on the virtual engines to fix device sleep - Use GTT when saving/restoring engine GPR - Fix selftest sort function vmwgfx: - black screen fix aspeed: - fbcon init warn fix" * tag 'drm-fixes-2020-07-17-1' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu/sdma5: fix wptr overwritten in ->get_wptr() drm/amdgpu/powerplay: Modify SMC message name for setting power profile mode drm/amd/display: handle failed allocation during stream construction drm/amd/display: OLED panel backlight adjust not work with external display connected drm/amdgpu/display: create fake mst encoders ahead of time (v4) drm/amdgpu: fix preemption unit test drm/amdgpu/gfx10: fix race condition for kiq drm/i915: Recalculate FBC w/a stride when needed drm/i915: Move cec_notifier to intel_hdmi_connector_unregister, v2. drm/i915/gt: Only swap to a random sibling once upon creation drm/i915/gt: Ignore irq enabling on the virtual engines drm/i915/perf: Use GTT when saving/restoring engine GPR drm/i915/selftests: Fix compare functions provided for sorting drm/vmwgfx: fix update of display surface when resolution changes dmabuf: use spinlock to access dmabuf->name drm/aspeed: Call drm_fbdev_generic_setup after drm_dev_register
2020-07-17Merge tag 'amd-drm-fixes-5.8-2020-07-15' of ↵Dave Airlie9-56/+101
git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.8-2020-07-15: amdgpu: - Fix a race condition with KIQ - Preemption fix - Fix handling of fake MST encoders - OLED panel fix - Handle allocation failure in stream construction - Renoir SMC fix - SDMA 5.x fix Signed-off-by: Dave Airlie <[email protected]> From: Alex Deucher <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2020-07-16Merge tag 'omap-for-v5.8/fixes-rc5-signed' of ↵Arnd Bergmann1-11/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes Fixes for omaps for v5.8-rc cycle Few fixes for issues noticed during testing: - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target module driver - A regression fix for ti-sysc no-idle handling that caused issues compared to earlier platform data based booting - A fix for memory leak for omap_hwmod_allocate_module - Fix d_can driver probe for am437x * tag 'omap-for-v5.8/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: Fix dcan driver probe failed on am437x platform ARM: OMAP2+: Fix possible memory leak in omap_hwmod_allocate_module bus: ti-sysc: Do not disable on suspend for no-idle bus: ti-sysc: Fix sleeping function called from invalid context for RTC quirk bus: ti-sysc: Fix wakeirq sleeping function called from invalid context Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2020-07-16Merge tag 'imx-fixes-5.8-2' of ↵Arnd Bergmann1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes i.MX fixes for 5.8, round 2: - A couple of fixes on i.MX platform device registration code to stop the use of invalid IRQ 0. - Fix a regression seen on ls1021a platform, caused by commit 52102a3ba6a61 ("soc: imx: move cpu code to drivers/soc/imx"). - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board. * tag 'imx-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: soc: imx: check ls1021a ARM: imx: Remove imx_add_imx_dma() unused irq_err argument ARM: imx: Provide correct number of resources when registering gpio devices ARM: dts: imx6qdl-gw551x: fix audio SSI Link: https://lore.kernel.org/r/20200714145649.GP15718@dragon Signed-off-by: Arnd Bergmann <[email protected]>
2020-07-16Merge tag 'amlogic-fixes' of ↵Arnd Bergmann1-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/fixes Amlogic fixes for v5.8-rc - misc DT fixes, and SoC ID fixes * tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM: dts: meson: Align L2 cache-controller nodename with dtschema arm64: dts: meson-gxl-s805x: reduce initial Mali450 core frequency arm64: dts: meson: add missing gxl rng clock soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2020-07-16regmap: debugfs: Don't sleep while atomic for fast_io regmapsDouglas Anderson1-23/+29
If a regmap has "fast_io" set then its lock function uses a spinlock. That doesn't work so well with the functions: * regmap_cache_only_write_file() * regmap_cache_bypass_write_file() Both of the above functions have the pattern: 1. Lock the regmap. 2. Call: debugfs_write_file_bool() copy_from_user() __might_fault() __might_sleep() Let's reorder things a bit so that we do all of our sleepable functions before we grab the lock. Fixes: d3dc5430d68f ("regmap: debugfs: Allow writes to cache state settings") Signed-off-by: Douglas Anderson <[email protected]> Link: https://lore.kernel.org/r/20200715164611.1.I35b3533e8a80efde0cec1cc70f71e1e74b2fa0da@changeid Signed-off-by: Mark Brown <[email protected]>
2020-07-16Merge tag 'pm-5.8-rc6' of ↵Linus Torvalds2-2/+10
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into master Pull power management fixes from Rafael Wysocki: "Add missing handling of a command line switch to the intel_pstate driver (Rafael Wysocki) and fix the freeing of the operating performance point (OPP) entries for the legacy (v1) OPP table type (Walter Lozano)" * tag 'pm-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: opp: Increase parsed_static_opps in _of_add_opp_table_v1() cpufreq: intel_pstate: Fix active mode setting from command line
2020-07-16Merge tag 'char-misc-5.8-rc6' of ↵Linus Torvalds20-116/+205
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into master Pull char/misc fixes from Greg KH: "Here are number of small char/misc driver fixes for 5.8-rc6 Not that many complex fixes here, just a number of small fixes for reported issues, and some new device ids. Nothing fancy. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits) virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial intel_th: Fix a NULL dereference when hub driver is not loaded intel_th: pci: Add Emmitsburg PCH support intel_th: pci: Add Tiger Lake PCH-H support intel_th: pci: Add Jasper Lake CPU support virt: vbox: Fix guest capabilities mask check virt: vbox: Fix VBGL_IOCTL_VMMDEV_REQUEST_BIG and _LOG req numbers to match upstream uio_pdrv_genirq: fix use without device tree and no interrupt uio_pdrv_genirq: Remove warning when irq is not specified coresight: etmv4: Fix CPU power management setup in probe() function coresight: cti: Fix error handling in probe Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()" mei: bus: don't clean driver pointer misc: atmel-ssc: lock with mutex instead of spinlock phy: sun4i-usb: fix dereference of pointer phy0 before it is null checked phy: rockchip: Fix return value of inno_dsidphy_probe() phy: ti: j721e-wiz: Constify structs phy: ti: am654-serdes: Constify regmap_config phy: intel: fix enum type mismatch warning phy: intel: Fix compilation error on FIELD_PREP usage ...
2020-07-16Merge tag 'driver-core-5.8-rc6' of ↵Linus Torvalds3-18/+32
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into master Pull driver core fixes from Greg KH: "Here are 3 driver core fixes for 5.8-rc6. They resolve some issues found with the deferred probe code for some types of devices on some embedded systems. They have been tested a bunch and have been in linux-next for a while with no reported issues" * tag 'driver-core-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core: Avoid deferred probe due to fw_devlink_pause/resume() driver core: Rename dev_links_info.defer_sync to defer_hook driver core: Don't do deferred probe in parallel with kernel_init thread
2020-07-16Merge tag 'staging-5.8-rc6' of ↵Linus Torvalds14-41/+91
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging into master Pull IIO and staging driver fixes from Greg KH: "Here are some IIO and staging driver fixes for 5.8-rc6. The majority of fixes are for IIO drivers, resolving a number of small reported issues, and there are some counter fixes in here too that were tied to the IIO fixes. There's only one staging driver fix here, a comedi fix found by code inspection. All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: comedi: verify array index is correct before using it iio: adc: ad7780: Fix a resource handling path in 'ad7780_probe()' iio:pressure:ms5611 Fix buffer element alignment iio:humidity:hts221 Fix alignment and data leak issues iio:humidity:hdc100x Fix alignment and data leak issues iio:magnetometer:ak8974: Fix alignment and data leak issues iio: adc: adi-axi-adc: Fix object reference counting iio: pressure: zpa2326: handle pm_runtime_get_sync failure counter: 104-quad-8: Add lock guards - filter clock prescaler counter: 104-quad-8: Add lock guards - differential encoder iio: core: add missing IIO_MOD_H2/ETHANOL string identifiers iio: magnetometer: ak8974: Fix runtime PM imbalance on error iio: mma8452: Add missed iio_device_unregister() call in mma8452_probe() iio:health:afe4404 Fix timestamp alignment and prevent data leak. iio:health:afe4403 Fix timestamp alignment and prevent data leak.
2020-07-16Merge tag 'tty-5.8-rc6' of ↵Linus Torvalds5-104/+36
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty into master Pull tty/serial driver fixes from Greg KH: :Here are some small tty and serial driver fixes for 5.8-rc6. The largest set of patches in here is a revert of the sysrq changes that went into 5.8-rc1 but turned out to cause a noticable overhead and cpu usage. Other than that, there's a few small serial driver fixes to resolve reported issues, and finally resolving the spinlock init problem on many serial driver consoles. All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial: core: Initialise spin lock before use in uart_configure_port() serial: mxs-auart: add missed iounmap() in probe failure and remove serial: sh-sci: Initialize spinlock for uart console Revert "tty: xilinx_uartps: Fix missing id assignment to the console" serial: core: drop redundant sysrq checks serial: core: fix sysrq overhead regression Revert "serial: core: Refactor uart_unlock_and_check_sysrq()" tty/serial: fix serial_core.c kernel-doc warnings tty: serial: cpm_uart: Fix behaviour for non existing GPIOs
2020-07-16Merge tag 'thermal-v5.8-rc6' of ↵Linus Torvalds3-6/+9
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux into master Pull thermal fixes from Daniel Lezcano: - Fix invalid index array access on int340x_thermal leading to a kernel panic (Bartosz Szczepanek) - Fix debug message level to prevent flooding on some platform (Alex Hung) - Fix invalid bank access by reverting "thermal: mediatek: fix register index error" (Enric Balletbo i Serra) * tag 'thermal-v5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: Revert "thermal: mediatek: fix register index error" thermal: int3403_thermal: Downgrade error message thermal/int340x_thermal: Prevent page fault on .set_mode() op
2020-07-16Merge branch 'pm-cpufreq'Rafael J. Wysocki1-2/+6
* pm-cpufreq: cpufreq: intel_pstate: Fix active mode setting from command line
2020-07-16Merge tag 'usb-serial-5.8-rc6' of ↵Greg Kroah-Hartman1-3/+5
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for 5.8-rc6 Here's a fix for 5.8 addressing a long-standing bug in iuu_phoenix. * tag 'usb-serial-5.8-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: iuu_phoenix: fix memory corruption
2020-07-16Merge branch 'opp/fixes' of ↵Rafael J. Wysocki1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull an operating performance points (OPP) framework fix for 5.8-rc6 from Viresh Kumar: "This fixes freeing of the OPP entries for the legacy OPP table type (v1)." * 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: opp: Increase parsed_static_opps in _of_add_opp_table_v1()
2020-07-16nvme: explicitly update mpath disk capacity on revalidationAnthony Iliopoulos2-0/+14
Commit 3b4b19721ec652 ("nvme: fix possible deadlock when I/O is blocked") reverted multipath head disk revalidation due to deadlocks caused by holding the bd_mutex during revalidate. Updating the multipath disk blockdev size is still required though for userspace to be able to observe any resizing while the device is mounted. Directly update the bdev inode size to avoid unnecessarily holding the bdev->bd_mutex. Fixes: 3b4b19721ec652 ("nvme: fix possible deadlock when I/O is blocked") Signed-off-by: Anthony Iliopoulos <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]>
2020-07-16RDMA/cm: Protect access to remote_sidr_tableMaor Gottlieb1-0/+2
cm.lock must be held while accessing remote_sidr_table. This fixes the below NULL pointer dereference. BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] SMP PTI CPU: 2 PID: 7288 Comm: udaddy Not tainted 5.7.0_for_upstream_perf_2020_06_09_15_14_20_38 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 RIP: 0010:rb_erase+0x10d/0x360 Code: 00 00 00 48 89 c1 48 89 d0 48 8b 50 08 48 39 ca 74 48 f6 02 01 75 af 48 8b 7a 10 48 89 c1 48 83 c9 01 48 89 78 08 48 89 42 10 <48> 89 0f 48 8b 08 48 89 0a 48 83 e1 fc 48 89 10 0f 84 b1 00 00 00 RSP: 0018:ffffc90000f77c30 EFLAGS: 00010086 RAX: ffff8883df27d458 RBX: ffff8883df27da58 RCX: ffff8883df27d459 RDX: ffff8883d183fa58 RSI: ffffffffa01e8d00 RDI: 0000000000000000 RBP: ffff8883d62ac800 R08: 0000000000000000 R09: 00000000000000ce R10: 000000000000000a R11: 0000000000000000 R12: ffff8883df27da00 R13: ffffc90000f77c98 R14: 0000000000000130 R15: 0000000000000000 FS: 00007f009f877740(0000) GS:ffff8883f1a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000003d467e003 CR4: 0000000000160ee0 Call Trace: cm_send_sidr_rep_locked+0x15a/0x1a0 [ib_cm] ib_send_cm_sidr_rep+0x2b/0x50 [ib_cm] cma_send_sidr_rep+0x8b/0xe0 [rdma_cm] __rdma_accept+0x21d/0x2b0 [rdma_cm] ? ucma_get_ctx+0x2b/0xe0 [rdma_ucm] ? _copy_from_user+0x30/0x60 ucma_accept+0x13e/0x1e0 [rdma_ucm] ucma_write+0xb4/0x130 [rdma_ucm] vfs_write+0xad/0x1a0 ksys_write+0x9d/0xb0 do_syscall_64+0x48/0x130 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f009ef60924 Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 80 00 00 00 00 8b 05 2a ef 2c 00 48 63 ff 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 55 53 48 89 d5 48 89 f3 48 83 RSP: 002b:00007fff843edf38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000055743042e1d0 RCX: 00007f009ef60924 RDX: 0000000000000130 RSI: 00007fff843edf40 RDI: 0000000000000003 RBP: 00007fff843ee0e0 R08: 0000000000000000 R09: 0000557430433090 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff843edf40 R14: 000000000000038c R15: 00000000ffffff00 CR2: 0000000000000000 Fixes: 6a8824a74bc9 ("RDMA/cm: Allow ib_send_cm_sidr_rep() to be done under lock") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-07-16RDMA/core: Fix race in rdma_alloc_commit_uobject()Leon Romanovsky1-3/+3
The FD should not be installed until all of the setup is completed as the fd_install() transfers ownership of the kref to the FD table. A thread can race a close() and trigger concurrent rdma_alloc_commit_uobject() and uverbs_uobject_fd_release() which, at least, triggers a safety WARN_ON: WARNING: CPU: 4 PID: 6913 at drivers/infiniband/core/rdma_core.c:768 uverbs_uobject_fd_release+0x202/0x230 Kernel panic - not syncing: panic_on_warn set ... CPU: 4 PID: 6913 Comm: syz-executor.3 Not tainted 5.7.0-rc2 #22 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 [..] RIP: 0010:uverbs_uobject_fd_release+0x202/0x230 Code: fe 4c 89 e7 e8 af 23 fe ff e9 2a ff ff ff e8 c5 fa 61 fe be 03 00 00 00 4c 89 e7 e8 68 eb f5 fe e9 13 ff ff ff e8 ae fa 61 fe <0f> 0b eb ac e8 e5 aa 3c fe e8 50 2b 86 fe e9 6a fe ff ff e8 46 2b RSP: 0018:ffffc90008117d88 EFLAGS: 00010293 RAX: ffff88810e146580 RBX: 1ffff92001022fb1 RCX: ffffffff82d5b902 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88811951b040 RBP: ffff88811951b000 R08: ffffed10232a3609 R09: ffffed10232a3609 R10: ffff88811951b043 R11: 0000000000000001 R12: ffff888100a7c600 R13: ffff888100a7c650 R14: ffffc90008117da8 R15: ffffffff82d5b700 ? __uverbs_cleanup_ufile+0x270/0x270 ? uverbs_uobject_fd_release+0x202/0x230 ? uverbs_uobject_fd_release+0x202/0x230 ? __uverbs_cleanup_ufile+0x270/0x270 ? locks_remove_file+0x282/0x3d0 ? security_file_free+0xaa/0xd0 __fput+0x2be/0x770 task_work_run+0x10e/0x1b0 exit_to_usermode_loop+0x145/0x170 do_syscall_64+0x2d0/0x390 ? prepare_exit_to_usermode+0x17a/0x230 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x414da7 Code: 00 00 0f 05 48 3d 00 f0 ff ff 77 3f f3 c3 0f 1f 44 00 00 53 89 fb 48 83 ec 10 e8 f4 fb ff ff 89 df 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2b 89 d7 89 44 24 0c e8 36 fc ff ff 8b 44 24 RSP: 002b:00007fff39d379d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000414da7 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007fff39d37a3c R08: 0000000400000000 R09: 0000000400000000 R10: 00007fff39d37910 R11: 0000000000000293 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000003 Reorder so that fd_install() is the last thing done in rdma_alloc_commit_uobject(). Fixes: aba94548c9e4 ("IB/uverbs: Move the FD uobj type struct file allocation to alloc_commit") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-07-16RDMA/hns: Fix wrong PBL offset when VA is not aligned to PAGE_SIZEXi Wang1-1/+1
ROCE uses "VA % buf_page_size" to caclulate the offset in the PBL's first page, the actual PA corresponding to the MR's VA is equal to MR's PA plus this offset. The first PA in PBL has already been aligned to PAGE_SIZE after calling ib_umem_get(), but the MR's VA may not. If the buf_page_size is smaller than the PAGE_SIZE, this will lead the HW to access the wrong memory because the offset is smaller than expected. Fixes: 9b2cf76c9f05 ("RDMA/hns: Optimize PBL buffer allocation process") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Xi Wang <[email protected]> Signed-off-by: Weihang Li <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-07-16RDMA/hns: Fix wrong assignment of lp_pktn_ini in QPCWeihang Li1-12/+22
The RoCE Engine will schedule to another QP after one has sent (2 ^ lp_pktn_ini) packets. lp_pktn_ini is set in QPC and should be calculated from 2 factors: 1. current MTU as a integer 2. the RoCE Engine's maximum slice length 64KB But the driver use MTU as a enum ib_mtu and the max inline capability, the lp_pktn_ini will be much bigger than expected which may cause traffic of some QPs to never get scheduled. Fixes: b713128de7a1 ("RDMA/hns: Adjust lp_pktn_ini dynamically") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Weihang Li <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-07-16RDMA/mlx5: Use xa_lock_irq when access to SRQ tableMaor Gottlieb1-2/+2
SRQ table is accessed both from interrupt and process context, therefore we must use xa_lock_irq. inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. kworker/u17:9/8573 takes: ffff8883e3503d30 (&xa->xa_lock#13){?...}-{2:2}, at: mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib] {IN-HARDIRQ-W} state was registered at: lock_acquire+0xb9/0x3a0 _raw_spin_lock+0x25/0x30 srq_event_notifier+0x2b/0xc0 [mlx5_ib] notifier_call_chain+0x45/0x70 __atomic_notifier_call_chain+0x69/0x100 forward_event+0x36/0xc0 [mlx5_core] notifier_call_chain+0x45/0x70 __atomic_notifier_call_chain+0x69/0x100 mlx5_eq_async_int+0xc5/0x160 [mlx5_core] notifier_call_chain+0x45/0x70 __atomic_notifier_call_chain+0x69/0x100 mlx5_irq_int_handler+0x19/0x30 [mlx5_core] __handle_irq_event_percpu+0x43/0x2a0 handle_irq_event_percpu+0x30/0x70 handle_irq_event+0x34/0x60 handle_edge_irq+0x7c/0x1b0 do_IRQ+0x60/0x110 ret_from_intr+0x0/0x2a default_idle+0x34/0x160 do_idle+0x1ec/0x220 cpu_startup_entry+0x19/0x20 start_secondary+0x153/0x1a0 secondary_startup_64+0xa4/0xb0 irq event stamp: 20907 hardirqs last enabled at (20907): _raw_spin_unlock_irq+0x24/0x30 hardirqs last disabled at (20906): _raw_spin_lock_irq+0xf/0x40 softirqs last enabled at (20746): __do_softirq+0x2c9/0x436 softirqs last disabled at (20681): irq_exit+0xb3/0xc0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&xa->xa_lock#13); <Interrupt> lock(&xa->xa_lock#13); *** DEADLOCK *** 2 locks held by kworker/u17:9/8573: #0: ffff888295218d38 ((wq_completion)mlx5_ib_page_fault){+.+.}-{0:0}, at: process_one_work+0x1f1/0x5f0 #1: ffff888401647e78 ((work_completion)(&pfault->work)){+.+.}-{0:0}, at: process_one_work+0x1f1/0x5f0 stack backtrace: CPU: 0 PID: 8573 Comm: kworker/u17:9 Tainted: GO 5.7.0_for_upstream_min_debug_2020_06_14_11_31_46_41 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib] Call Trace: dump_stack+0x71/0x9b mark_lock+0x4f2/0x590 ? print_shortest_lock_dependencies+0x200/0x200 __lock_acquire+0xa00/0x1eb0 lock_acquire+0xb9/0x3a0 ? mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib] _raw_spin_lock+0x25/0x30 ? mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib] mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib] mlx5_ib_eqe_pf_action+0x257/0xa30 [mlx5_ib] ? process_one_work+0x209/0x5f0 process_one_work+0x27b/0x5f0 ? __schedule+0x280/0x7e0 worker_thread+0x2d/0x3c0 ? process_one_work+0x5f0/0x5f0 kthread+0x111/0x130 ? kthread_park+0x90/0x90 ret_from_fork+0x24/0x30 Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-07-16drivers/perf: Fix kernel panic when rmmod PMU modules during perf samplingQi Liu5-0/+5
When users try to remove PMU modules during perf sampling, kernel panic will happen because the pmu->read() is a NULL pointer here. INFO on HiSilicon hip08 platform as follow: pc : hisi_uncore_pmu_event_update+0x30/0xa4 [hisi_uncore_pmu] lr : hisi_uncore_pmu_read+0x20/0x2c [hisi_uncore_pmu] sp : ffff800010103e90 x29: ffff800010103e90 x28: ffff0027db0c0e40 x27: ffffa29a76f129d8 x26: ffffa29a77ceb000 x25: ffffa29a773a5000 x24: ffffa29a77392000 x23: ffffddffe5943f08 x22: ffff002784285960 x21: ffff002784285800 x20: ffff0027d2e76c80 x19: ffff0027842859e0 x18: ffff80003498bcc8 x17: ffffa29a76afe910 x16: ffffa29a7583f530 x15: 16151a1512061a1e x14: 0000000000000000 x13: ffffa29a76f1e238 x12: 0000000000000001 x11: 0000000000000400 x10: 00000000000009f0 x9 : ffff8000107b3e70 x8 : ffff0027db0c1890 x7 : ffffa29a773a7000 x6 : 00000007f5131013 x5 : 00000007f5131013 x4 : 09f257d417c00000 x3 : 00000002187bd7ce x2 : ffffa29a38f0f0d8 x1 : ffffa29a38eae268 x0 : ffff0027d2e76c80 Call trace: hisi_uncore_pmu_event_update+0x30/0xa4 [hisi_uncore_pmu] hisi_uncore_pmu_read+0x20/0x2c [hisi_uncore_pmu] __perf_event_read+0x1a0/0x1f8 flush_smp_call_function_queue+0xa0/0x160 generic_smp_call_function_single_interrupt+0x18/0x20 handle_IPI+0x31c/0x4dc gic_handle_irq+0x2c8/0x310 el1_irq+0xcc/0x180 arch_cpu_idle+0x4c/0x20c default_idle_call+0x20/0x30 do_idle+0x1b4/0x270 cpu_startup_entry+0x28/0x30 secondary_start_kernel+0x1a4/0x1fc To solve the above issue, current module should be registered to kernel, so that try_module_get() can be invoked when perf sampling starts. This adds the reference counting of module and could prevent users from removing modules during sampling. Reported-by: Haifeng Wang <[email protected]> Signed-off-by: Qi Liu <[email protected]> Reviewed-by: John Garry <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2020-07-16USB: serial: iuu_phoenix: fix memory corruptionJohan Hovold1-3/+5
The driver would happily overwrite its write buffer with user data in 256 byte increments due to a removed buffer-space sanity check. Fixes: 5fcf62b0f1f2 ("tty: iuu_phoenix: fix locking.") Cc: stable <[email protected]> # 2.6.31 Signed-off-by: Johan Hovold <[email protected]>
2020-07-16opp: Increase parsed_static_opps in _of_add_opp_table_v1()Walter Lozano1-0/+4
Currently, when using _of_add_opp_table_v2 parsed_static_opps is increased and this value is used in _opp_remove_all_static() to check if there are static opp entries that need to be freed. Unfortunately this does not happen when using _of_add_opp_table_v1(), which leads to warnings. This patch increases parsed_static_opps in _of_add_opp_table_v1() in a similar way as in _of_add_opp_table_v2(). Fixes: 03758d60265c ("opp: Replace list_kref with a local counter") Cc: v5.6+ <[email protected]> # v5.6+ Signed-off-by: Walter Lozano <[email protected]> [ Viresh: Do the operation with lock held and set the value to 1 instead of incrementing it ] Signed-off-by: Viresh Kumar <[email protected]>
2020-07-15Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds3-8/+43
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux into master Pull clk fixes from Stephen Boyd: "A couple build fixes for issues exposed this merge window and a fix for the eMMC clk on AST2600 SoCs that fixes the rate that is calculated by the clk framework" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: Specify IOMEM dependency for HSDK pll driver clk: AST2600: Add mux for EMMC clock clk: mvebu: ARMADA_AP_CPU_CLK needs to select ARMADA_AP_CP_HELPER
2020-07-16Merge tag 'drm-intel-fixes-2020-07-15' of ↵Dave Airlie6-33/+39
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v5.8-rc6: - FBC w/a stride fix - Fix use-after-free fix on module reload - Ignore irq enabling on the virtual engines to fix device sleep - Use GTT when saving/restoring engine GPR - Fix selftest sort function Signed-off-by: Dave Airlie <[email protected]> From: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2020-07-16Merge tag 'drm-misc-fixes-2020-07-15' of ↵Dave Airlie2-6/+8
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes * aspeed: setup fbdev console after registering device; avoids warning and stacktrace in dmesg log * dmabuf: protect dmabuf->name with a spinlock; avoids sleeping in atomic context Signed-off-by: Dave Airlie <[email protected]> From: Thomas Zimmermann <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20200715171756.GA18606@linux-uq9g